View source for Deloitte

{{Short description|Multinational professional services network}}
{{distinguish| Dolittle (disambiguation){{!}}Dolittle}}
{{For|the dance music group|Deee-Lite}}
{{Use dmy dates|date=February 2023}}
{{Infobox company
| name = Deloitte Touche Tohmatsu Limited
| image = 
| logo = Logo of Deloitte.svg
| logo_upright = 1.05
| trade_name = Deloitte
| type = [[Private company limited by guarantee]]<ref name="gov.uk"/>
| foundation = {{Start date and age|1845}} in [[London]], England
| founder = [[William Welch Deloitte]]
| location = [[London]], England
| area_served = Worldwide
| key_people = Anna Marks ([[Chairperson]] Deloitte Global)<ref name="Deloitte Sharon Thorne">{{cite web |title=Deloitte Global announces new Board Chair |url= https://www.deloitte.com/global/en/about/press-room/deloitte-global-announces-new-board-chair-anna-marks.html|publisher=Deloitte |access-date=11 August 2023}}</ref><br/>[[Joe Ucuzoglu|Joseph B. Ucuzoglu]] ([[CEO]] Deloitte Global)<ref name=DeloitteNYCExecutive>{{cite web|url=https://www2.deloitte.com/us/en/profiles/jucuzoglu.html|title=Joseph B. Ucuzoglu Chief Executive Officer Deloitte Global|publisher=Deloitte|access-date=17 March 2024}}</ref>
| industry = [[Professional services]]
| services = {{Ubl
  | [[Assurance services|Audit]]
  | [[Management consulting]]
  | [[Financial adviser|Financial advisory]]
  | [[enterprise risk management|Risk advisory]]
  | [[Tax]]
  | [[Legal]]
}}
| revenue = {{increase}} US$67.2 billion (2024)<ref name=global2024>{{cite web|url=https://www.deloitte.com/global/en/about/press-room/global-revenue-announcement.html|title=Global Revenue Announcement|date=12 September 2024|publisher=Deloitte|access-date=15 July 2024}}</ref>
| net_income = 
| num_employees = 460,000 (2024)<ref name=global2024/>
| website = {{url|https://www2.deloitte.com/|deloitte.com}}
}}

'''Deloitte''' is a British [[Multinational corporation|multinational]] [[professional services network]] based in [[London]], United Kingdom. It is the largest professional services network in the world by revenue and number of employees, and is one of the [[Big Four accounting firms]], along with [[Ernst & Young|EY]], [[KPMG]], and [[PwC]].<ref name=":1">{{cite news| url= https://www.telegraph.co.uk/business/2016/10/04/deloitte-overtakes-pwc-as-worlds-biggest-accountant/ |archive-url=https://ghostarchive.org/archive/20220111/https://www.telegraph.co.uk/business/2016/10/04/deloitte-overtakes-pwc-as-worlds-biggest-accountant/ |archive-date=11 January 2022 |url-access=subscription |url-status=live|title= Deloitte overtakes PwC as world's biggest accountant|access-date=15 April 2017|newspaper=The Telegraph}}{{cbignore}}</ref><ref>{{cite web|title=Deloitte Touche Tohmatsu Limited|publisher=Companies House|url=https://beta.companieshouse.gov.uk/company/07271800|access-date=15 October 2018}}</ref> The Deloitte network is composed of member firms of '''Deloitte Touche Tohmatsu Limited''' ({{IPAc-en|d|ə|ˈ|l|ɔɪ|t|_|ˈ|t|uː|ʃ|_|t|oʊ|ˈ|m|ɑː|t|s|uː}} {{respell|də|LOYT|_|TOOSH|_|toh|MAHT|soo}}) a private [[company limited by guarantee]] incorporated in England and Wales.<ref>{{Cite web |title=About the network |url=https://www.deloitte.com/global/en/about/governance/network-brand-alliances/about-the-network.html |access-date=2025-03-19 |website=www.deloitte.com |language=en}}</ref>

The firm was founded by accountant [[William Welch Deloitte]] in [[London]], England in 1845 and expanded into the United States in 1890.<ref name="history" /> It merged with Haskins & Sells to form Deloitte Haskins & Sells in 1972 and with Touche Ross in the US to form Deloitte & Touche in 1989. In 1993, the international firm was renamed Deloitte Touche Tohmatsu, later abbreviated to Deloitte.<ref name="history" /> In 2002, [[Arthur Andersen]]'s practice in the UK as well as several of that firm's practices in Europe and North and South America agreed to merge with Deloitte.<ref name="anderson" /> Subsequent acquisitions have included [[Monitor Group]], a large [[strategy consulting]] business, in 2013.<ref name="monitor" />

Deloitte provides [[audit]], [[Consultant|consulting]], [[Corporate services|financial advisory]], [[Enterprise risk management|risk]], [[tax]], and [[legal]] services with approximately 470,000 employees globally,<ref name=global2024/> and operates in over 150 countries.<ref name=global2024/> In [[Fiscal year|FY]] 2024, the network earned revenues of US$67.2 billion in aggregate.<ref name=global2024/> The firm has sponsored a number of activities and events, including the [[2012 Summer Olympics]].<ref name=londonolympics/>

The firm suffered a major [[cyberattack]] in 2017, causing a breach in client confidentiality and publicizing a significant amount of employee information.<ref name="guardsep2017" /> Deloitte has also been subject to litigation regarding several of its audits.

==History==
===Early history===
In 1845, [[William Welch Deloitte]] opened an office in [[Basinghall Street]] in London, England.<ref name=parker>{{cite book|url=https://books.google.com/books?id=MFFJAgAAQBAJ&pg=PA140 |title=Papers on Accounting History|first=R. H.|last=Parker|publisher=Garland Publishing|year=1984|page=140|isbn=9781317964018|access-date=31 October 2021}}</ref> Deloitte was the first person to be appointed an independent auditor of a public company, namely the [[Great Western Railway]].<ref name="history">{{cite web| url=https://www2.deloitte.com/global/en/pages/about-deloitte/articles/about-deloitte.html| title=About Deloitte| work=Deloitte| access-date=2 October 2014}}</ref> He went on to open an office in New York in 1880.<ref name="history" /> The firm was based at No. 4 [[Lothbury]] in London from 1855 to 1905,<ref>{{cite web|url=https://files.taylorandfrancis.com/rabr-map.pdf|title=Accounting Historian's Map of London|publisher=Taylor and Francis|access-date=17 April 2025}}</ref> when it moved to No. 54 London Wall Buildings.<ref name=densem>{{cite news|url=https://egrove.olemiss.edu/cgi/viewcontent.cgi?article=1506&context=dl_hs|title=An office profile in two parts: London|first=W. Guy|last=Densem|publisher=Haskins & Sells Publications|year=1966|access-date=17 April 2025}}</ref>

In 1890, Deloitte opened a branch office on [[Wall Street]] headed by Edward Adams and P.D. Griffiths as branch managers. This was Deloitte's first overseas venture. Other branches were soon opened in [[Chicago]] and [[Buenos Aires]]. In 1898 P.D. Griffiths returned from New York and became a partner in the London office.<ref name="Book1">{{cite book|title=Deloitte & Co.|date=1959|publisher=Oxford University Press}}</ref>

In 1896, [[Charles Waldo Haskins]] and [[Elijah Watt Sells]] formed Haskins & Sells in New York.<ref name="history" /> It was later described as "the first major auditing firm to be established in the country by American rather than British accountants".<ref>[http://fisher.osu.edu/departments/accounting-and-mis/the-accounting-hall-of-fame/membership-in-hall/elijah-watt-sells Elijah Watt Sells] {{Webarchive|url=https://web.archive.org/web/20160704125102/http://fisher.osu.edu/departments/accounting-and-mis/the-accounting-hall-of-fame/membership-in-hall/elijah-watt-sells |date=4 July 2016 }}, "The Accounting Hall of Fame", [[Fisher College of Business]]. Retrieved 7 August 2013.</ref>

In 1898, [[George Touche]] established an office in London and then, in 1900, joined John Ballantine Niven in establishing the firm of Touche Niven in the Johnston Building at 30 [[Broad Street (Manhattan)|Broad Street]] in New York.<ref name="history" />

On 1 March 1933, Colonel Arthur Hazelton Carter, President of the New York State Society of Certified Public Accountants and managing partner of Haskins & Sells, testified before the [[U.S. Senate Committee on Banking and Currency]]. Carter helped convince [[United States Congress|Congress]] that independent audits should be mandatory for [[Public company|public companies]].<ref name="history" />

[[File:William welch deloitte small.jpg|thumb|upright|William Welch Deloitte, founder of Deloitte]]

In 1947, [[Detroit]] accountant George Bailey, then president of the [[American Institute of Certified Public Accountants]], launched his own organization. The new entity enjoyed such a positive start that in less than a year, the partners merged with Touche Niven and A. R. Smart to form Touche, Niven, Bailey & Smart.<ref name="history" /> Headed by Bailey, the organization grew rapidly, in part by creating a dedicated [[management consulting]] function. It also forged closer links with organizations established by the co-founder of Touche Niven, George Touche: the Canadian organization Ross and the British organization George A. Touche.<ref name="history" /> In 1960, the firm was renamed Touche, Ross, Bailey & Smart, becoming Touche Ross in 1969.<ref name="history" /> In 1968 [[Nobuzo Tohmatsu]] formed Tohmatsu Aoki & Co, a firm based in Japan that was to become part of the Touche Ross network in 1975.<ref name="history" /> In 1972 Robert Trueblood, Chairman of Touche Ross, led the committee responsible for recommending the establishment of the [[Financial Accounting Standards Board]].<ref name="history" />

Meanwhile, the head office of Deloitte's firm moved to No. 128 [[Queen Victoria Street, London|Queen Victoria Street]] in London in September 1964.<ref name=densem/> In 1972, Deloitte's firm (by then known as Deloitte, Plender, Griffiths & Co.) merged with Haskins & Sells to form Deloitte Haskins & Sells.<ref>{{cite web|title=A Simplified Family Tree for the Firm of Deloitte Haskins & Sells|url=http://www.icaew.com/-/media/corporate/files/library/subjects/accounting-history/family-trees/family-tree-deloitte-haskins-sells.ashx?la=en|website=Icaew.com|access-date=6 April 2017}}</ref>

In 1989, Deloitte Haskins & Sells merged with Touche Ross in the US to form Deloitte & Touche. The merged firm was led jointly by [[J. Michael Cook]] and Edward A. Kangas. Led by the UK partnership, a smaller number of Deloitte Haskins & Sells member firms rejected the merger with Touche Ross and shortly thereafter merged with Coopers & Lybrand to form Coopers & Lybrand Deloitte (later to merge with Price Waterhouse to become [[PwC]]).<ref name=NYT>[https://www.nytimes.com/1989/12/05/business/deloitte-touche-merger-done.html Deloitte Touche merger done] ''[[The New York Times]]''</ref> Some member firms of Touche Ross also rejected the merger with Deloitte Haskins & Sells and merged with other firms.<ref name=NYT /> In the UK, Touche Ross merged with Spicer & Oppenheim in 1990.<ref>{{cite web|title=Spicer & Oppenheim|url=https://www.icaew.com/en/library/historical-resources/guide-to-historical-resources/firm-histories/whats-in-a-name/spicer-and-oppenheim|website=ICAEW.com}}</ref>

===Recent history===
At the time of the US-led mergers to form Deloitte & Touche, the name of the firm was a problem, because there was no worldwide exclusive access to the names "Deloitte" or "Touche Ross" – key member firms such as Deloitte in the UK and Touche Ross in Australia had not joined the merger. The name DRT International was therefore chosen, referring to Deloitte, Ross and Tohmatsu. In 1993, the international firm was renamed Deloitte Touche Tohmatsu.<ref name="history" />

[[File:DeloitteOfficeChicago.jpg|thumb|left|Deloitte office building in downtown Chicago]]

In 1995, the partners of Deloitte & Touche decided to create Deloitte & Touche Consulting Group (now known as Deloitte Consulting).<ref>{{cite web|url=http://www.wellesley.edu/Activities/homepage/consultingclub/wetfeet%20-%20deloitte_consulting.pdf|title=Deloitte Consulting, Page 6|website=Wellesley.edu|access-date=10 October 2017|archive-url=https://web.archive.org/web/20110409002538/http://www.wellesley.edu/Activities/homepage/consultingclub/wetfeet%20-%20deloitte_consulting.pdf|archive-date=9 April 2011|url-status=dead}}</ref>

In 2000, Deloitte acquired Eclipse to add internet design to its consulting capabilities. Eclipse was later separated into Deloitte Online and Deloitte Digital.<ref>[http://www.arnnet.com.au/article/91567/deloitte_buys_eclipse/ Deloitte buys Eclipse], ARN, 16 February 2000</ref>

In 2002, [[Arthur Andersen]]'s UK practice, the firm's largest practice outside the US, agreed to merge with Deloitte's UK practice. Andersen's practices in Spain, the Netherlands, Portugal, Belgium, Mexico, Brazil and Canada also agreed to merge with Deloitte.<ref name=anderson>{{cite news|url=https://www.nytimes.com/2002/04/11/business/enron-s-many-strands-accountants-british-unit-andersen-defecting-deloitte.html?scp=14&sq=arthur%20andersen%20deloitte&st=Search |title=ENRON'S MANY STRANDS: THE ACCOUNTANTS; British Unit of Andersen Is Defecting to Deloitte |date=11 April 2002 |access-date=24 February 2010 |author=Suzanne Kapner |work=The New York Times}}</ref><ref>{{cite news|url=https://www.nytimes.com/2002/04/13/business/international-business-canadian-unit-to-join-deloitte.html?pagewanted=1 |title=Canadian Unit to Join Deloitte |date=13 April 2002 |work=The New York Times |access-date=24 February 2010}}</ref> The spinoff of Deloitte France's consulting division led to the creation of [[Ineum Consulting]].<ref>[http://www.oracle.com/profit/industry/071408_ineum_.html Ineum Consulting], Oracle.com, August 2008</ref>

In 2005, Deloitte acquired Beijing Pan-China CPA to become the largest accountancy firm in China. Just prior to this acquisition Deloitte China had about 3,200 employees. This acquisition was part of a five-year plan to invest $150 million in China. Deloitte has had a presence in China since 1917.<ref>{{cite web|last1=Bennett|first1=James|title=Deloitte expands in China (7 Apr 2005)|url=https://www.accountancyage.com/aa/news/1775966/deloitte-expands-china|website=AccountancyAge.com|date=7 April 2005|access-date=17 April 2017}}</ref>

In 2007, Deloitte began hiring former employees of the [[Central Intelligence Agency]] (CIA) for their [[competitive intelligence]] unit known as Deloitte Intelligence.<ref name="cnbcaccountantsandspies">{{cite news|last1=Javers|first1=Eamon|title=Accountants and spies: The secret history of Deloitte's espionage practice|url=https://www.cnbc.com/2016/12/19/accountants-and-spies-the-secret-history-of-deloittes-espionage-practice.html?__source=Facebook|access-date=20 December 2016|publisher=CNBC|date=19 December 2016}}</ref>

In 2009, Deloitte purchased the North American public service practice of [[BearingPoint]] (formerly [[KPMG]] Consulting) for $350 million after it filed for bankruptcy protection.<ref>[http://washington.bizjournals.com/washington/stories/2009/03/23/daily20.html BearingPoint to sell business units to Deloitte, PwC], ''Washington Business Journal'', 24 March 2009</ref>

Deloitte LLP took over the UK property consultants [[Drivers Jonas]] in January 2010. As of 2013, this business unit was known as Deloitte Real Estate.<ref>[https://www.ft.com/content/cfcf9962-06cd-11df-b058-00144feabdc0 Deloitte acquires Drivers Jonas], ''Financial Times'', 21 January 2010</ref>

In 2011, Deloitte acquired DOMANI Sustainability Consulting and ClearCarbon Consulting in order to expand its sustainability service offerings.<ref>[http://www.environmentalleader.com/2010/12/13/deloitte-expands-sustainability-offerings-acquires-clearcarbon-domani/ Deloitte Expands Sustainability Offerings, Acquires ClearCarbon, DOMANI] {{Webarchive|url=https://web.archive.org/web/20160513151910/http://www.environmentalleader.com/2010/12/13/deloitte-expands-sustainability-offerings-acquires-clearcarbon-domani/ |date=13 May 2016 }}, ''Environmental Leader'', 13 December 2010</ref>

In January 2012, Deloitte announced the acquisition of Übermind, a mobile advertising agency.<ref>[http://www.prnewswire.com/news-releases/deloitte-acquires-ubermind-establishes-lead-in-the-mobile-revolution-136656363.html Deloitte Acquires Ubermind; Establishes Lead in the Mobile Revolution], Prnewswire.com, 4 January 2012</ref> The acquisition marked Deloitte's first entrance into the mobile application field.<ref name="Ubermind">{{cite web |url=http://www.geekwire.com/2012/confirmed-deloitte-buys-ubermind-making-play-mobile-apps/ |title=Confirmed: Deloitte buys Ubermind, looking to play a bigger role in mobile apps |work=GeekWire |date=4 January 2012 |access-date=2 October 2014}}</ref>

In November 2012, Deloitte acquired Recombinant Data Corporation, a company specializing in [[data warehousing]] and clinical intelligence software, and launched Recombinant by Deloitte.<ref>[http://www.informationweek.com/interoperability/deloitte-buys-recombinant-to-expand-healthcare-analytics-mojo/d/d-id/1107234? Deloitte Buys Recombinant to Expand Healthcare Analytics Mojo] ''InformationWeek'', 6 November 2012</ref> In February 2013 Recombinant by Deloitte merged with an internal [[informatics]] unit (Deloitte Health Informatics) and launched ConvergeHEALTH by Deloitte.<ref>[https://www2.deloitte.com/us/en/pages/about-deloitte/articles/press-releases/launch-of-convergehealth.html Deloitte announces the launch of ConvergeHEALTH], Deloitte.com, 20 February 2013</ref>

On 11 January 2013, Deloitte purchased substantially all of the business of [[Monitor Group]],<ref name=monitor>{{cite press release |url=http://www.prnewswire.com/news-releases/deloitte-completes-acquisition-of-monitors-global-strategy-consulting-business-186564461.html |title=Deloitte Completes Acquisition of Monitor's Global Strategy Consulting Business |date=11 January 2013 |access-date=2 October 2014}}</ref><!--Victor M. Lee--> the strategy consulting firm founded by [[Harvard Business School]] professor [[Michael Porter]], after Monitor filed for bankruptcy protection.<ref>{{cite web |url=http://www.businessweek.com/news/2012-11-07/monitor-company-group-lp-files-for-bankruptcy-in-delaware |archive-url=https://web.archive.org/web/20121110203452/http://www.businessweek.com/news/2012-11-07/monitor-company-group-lp-files-for-bankruptcy-in-delaware |url-status=dead |archive-date=10 November 2012 |title=Monitor Company Group LP Files for Bankruptcy in Delaware |work=Bloomberg BusinessWeek |access-date=2 October 2014}}</ref>

In 2014, the company introduced Rubix, a [[blockchain]] consultancy providing advisory services for clients in different business sectors, including government.  In 2016 the company created its first blockchain lab in Dublin. A second hub was launched in [[New York City|New York]] in January 2017. In 2016, Deloitte Canada set up a Bitcoin automatic teller machine and equipped a restaurant in its office complex to accept Bitcoin as payment. Deloitte CIS partnered with Waves Platform to offer services related to [[initial coin offering]]s. Deloitte became a member of the [[Ethereum|Ethereum Enterprise Alliance]] and the Hyperledger Project sponsored by the [[Linux Foundation]] in May 2017.<ref>{{Cite news|url=http://www.nasdaq.com/article/big-4-accounting-firms-are-experimenting-with-blockchain-and-bitcoin-cm812018|title='Big 4' Accounting Firms Are Experimenting With Blockchain And Bitcoin|date=5 July 2017|publisher=NASDAQ|access-date=9 July 2017|language=en-us}}</ref>

In 2016, Deloitte acquired the advertising agency Heat of San Francisco, best known for its work for ''[[Madden NFL]]'' from [[EA Sports]] and the [[Hotwire.com|Hotwire]] travel website. Heat was the 11th digital marketing agency purchased by Deloitte Digital since its founding in 2012. As of 2016, Deloitte Digital had 7,000 employees. It billed $2.1 billion in 2015, making it one of world's largest digital agencies.<ref>{{cite news|title=Need to Know|work=[[Advertising Age]]|date=7 March 2016|page=4}}</ref><ref name="Vranica">{{cite news|last1=Vranica|first1=Suzanne|title=Deloitte Digital Buys Creative Agency Heat|url=https://www.wsj.com/articles/deloitte-digital-buys-creative-agency-heat-1456761163|access-date=21 December 2017|newspaper=The Wall Street Journal|date=29 February 2016}}</ref>

In September 2016, [[Apple Inc.]] announced a partnership with Deloitte aimed at boosting sales of its phones and other mobile devices to businesses. As part of the partnership, the two companies will launch a service called Enterprise Next, in which more than 5,000 Deloitte consultants will advise clients on how to make better use of Apple products and services.<ref>{{Cite news|url=https://www.cnet.com/uk/news/apple-and-deloitte-partner-on-enterprise-next-service/|title=Apple and Deloitte partner on 'Enterprise Next' service|publisher=CNET|access-date=5 November 2016}}</ref><ref>{{Cite news|url=https://www.apple.com/newsroom/2016/09/apple-and-deloitte-team-up-to-accelerate-business-transformation-on-iphone-and-ipad.html|title=Apple and Deloitte team up to accelerate business transformation on iPhone and iPad|newspaper=Apple Newsroom|language=en-US|access-date=5 November 2016}}</ref><ref>{{Cite news|url=https://www.businessinsider.com/apple-partnership-deloitte-2016-9|title=Apple just made a huge deal to push the iPhone into big businesses|newspaper=Business Insider|access-date=5 November 2016}}</ref>

In October 2016, Deloitte announced that they were creating Deloitte North West Europe. The Belgian, Danish, Dutch, Finnish, Icelandic, Norwegian, and Swedish member firms will combine with the UK and Swiss member firms to create Deloitte North West Europe. Deloitte, over the next three years, would invest €200m to enhance its services to its global, national and private market clients and to create development opportunities. The firm came into effect on 1 June 2017 and it is estimated to have 28,000 partners and people generating over €5bn in annual revenue. Deloitte North West Europe accounts for approximately 20% of all revenue within their Global Network.<ref>{{Cite web|url=https://www2.deloitte.com/ch/en/pages/press-releases/articles/deloitte-creates-north-west-europe-firm.html|title=Deloitte targets accelerated growth with additional €200m investment in the creation of North West Europe firm|website=Deloitte.com|access-date=10 October 2017}}</ref>

In March 2022, Deloitte announced that, as a result of the [[Russo-Ukrainian War]], the firm would no longer carry out business in [[Russia]] or [[Belarus]], and would separate its practices within these countries from its global network of firms.<ref>{{Cite web|url=https://www2.deloitte.com/global/en/pages/about-deloitte/press-releases/deloitte-statement-on-ukraine-deloitte-global.html|title=Deloitte statement on Ukraine|website=Deloitte.com|access-date=7 March 2022}}</ref><ref>{{Cite web|url=https://www.ft.com/content/5b26e0e8-af55-4b33-b55e-4894875c5692 |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/5b26e0e8-af55-4b33-b55e-4894875c5692 |archive-date=10 December 2022 |url-access=subscription |url-status=live|title=EY and Deloitte exit Russian operations over Ukraine invasion|newspaper=Financial Times|date=7 March 2022}}</ref>

In March 2022, Deloitte acquired Etain, a data and digital transformation specialist company, based in [[Northern Ireland]].<ref>{{Cite web |last=Media |first=Insider |title=Deloitte completes landmark acquisition |url=https://www.insidermedia.com/news/ireland/deloitte-completes-landmark-acquisition |access-date=29 March 2022 |website=Insider Media Ltd |date=29 March 2022 |language=en}}</ref>

The ''[[Wall Street Journal]]'' reported in June 2022 that the firm might choose to divide itself into two new companies, one accounting firm and one advisory firm.<ref name=wsj_0622>{{cite news |last1=Driebusch |first1=Jean Eaglesham and Corrie |title=Deloitte Explores Splitting Auditing, Consulting Arms, Following Ernst & Young |url=https://www.wsj.com/articles/deloitte-exploring-splitting-auditing-consulting-arms-following-ernst-young-11654709024?mod=hp_lead_pos2 |access-date=8 June 2022 |work=[[The Wall Street Journal]] |date=8 June 2022}}</ref> The ''Wall Street Journal'' reported this potential change several weeks after reporting that [[Ernst & Young]] was considering a similar split.<ref name=wsj_0622/><ref>{{cite news |last1=Maurer |first1=Mark |last2=Eaglesham |first2=Jean |title=Accounting Firm EY Considers Split of Audit, Advisory Businesses |url=https://www.wsj.com/articles/accounting-firm-ey-considers-splitting-audit-and-advisory-businesses-11653592588?mod=article_inline |access-date=8 June 2022 |work=[[The Wall Street Journal]] |date=26 May 2022}}</ref>

In November 2023, Deloitte entered into a supply contract with Henchmann, a provider of contract drafting and negotiation software that scans and extracts key data points from legal documents.<ref>{{cite web |last1=Caroline |first1=Hill |url=https://legaltechnology.com/2023/11/29/henchman-secures-deloitte-as-a-client/ |title=Henchman secures Deloitte as a client|website=Legal Insider |date=29 November 2023 |access-date=29 November 2023}}</ref>

In 2024, Deloitte, [[Nvidia]], [[Microsoft]] and [[Amazon Web Services]] provided a combined $40 million in funding to multiple cancer institutes to support the establishment of the Cancer AI Alliance.<ref>{{Cite web |last=Petersen |first=Jerry |date=2024-10-03 |title=AWS, Deloitte, Microsoft & NVIDIA Back Establishment of Cancer AI Alliance |url=https://executivegov.com/2024/10/ai-cancer-alliance-backed-by-aws-deloitte-microsoft-nvidia/ |access-date=2024-10-23 |language=en-US}}</ref>

In May 2025, the company informed its UK consulting division it planned to reduce pay rises and cut bonuses by 20 per cent following poor financial performance.<ref>{{Cite news |last=Kissin |first=Ellesheva |date=2025-05-20 |title=Deloitte to cut UK bonuses, pay rises and promotions |url=https://www.ft.com/content/d3231c90-d9dd-4443-b7ce-13ff9f1f9141 |access-date=2025-05-21 |work=Financial Times}}</ref>

==Name and branding==
[[File:DeloitteNewSmall.png|thumb|right|Deloitte logo (short form)]]

In 1989, Deloitte, Haskins & Sells merged in most countries with Touche Ross, forming Deloitte & Touche. However, in the United Kingdom, the local firm of Deloitte, Haskins & Sells merged instead with Coopers & Lybrand (now part of PwC).<ref>{{cite web|url=http://www.pwc.com/pl/eng/about/main/history.html|title=PWC: History and milestones|website=Pwc.com|access-date=10 October 2017}}</ref>

While the full name of the UK private company is Deloitte Touche Tohmatsu Limited,<ref name="gov.uk">{{cite web |url=https://beta.companieshouse.gov.uk/company/07271800 |title=Deloitte Touche Tohmatsu Limited |work=Companies House |access-date=23 July 2020}}</ref> in 1989, it initially branded itself as DTT International. In 2003, the rebranding campaign was commissioned by [[William G. Parrett]], the then-CEO of DTT, and led by Jerry Leamon, the global Clients and Markets leader.<ref>{{cite web |url=http://www.accountancyage.com/accountancyage/news/2200392/ernst-young-launches-rebrand |title=Ernst & Young launches rebrand plan |work=Accountancy Age |date=3 October 2007 |access-date=2 October 2014}}</ref>

According to the company website, Deloitte now refers to the brand under which independent firms throughout the world collaborate to provide audit, consulting, financial advisory, risk management, and tax services to selected clients.<ref>{{cite web |url=https://www2.deloitte.com/global/en/pages/about-deloitte/articles/about-deloitte.html |title=virat Deloitte |work=Deloitte |access-date=2 October 2014}}</ref>

In 2008, Deloitte adopted its new "Always One Step Ahead" (AOSA) brand positioning platform to support the existing Deloitte vision: "To be the Standard of Excellence". AOSA represents the global organization's value proposition and is never used as a tagline. The recent launch of the Green Dot ad campaign also aligns with Deloitte's brand strategy and positioning framework.<ref>{{cite web |url=http://globalblogs.deloitte.com/deloitteperspectives/2010/11/170000-brand-managers-step-ahead-as-one.html |title=170,000 brand managers step ahead, as one |work=Deloitte Perspectives |access-date=2 October 2014}}</ref>

In June 2016, Deloitte changed its branding and adopted a new logo, with Deloitte written in the color black instead of the earlier blue.<ref>{{cite web|url=https://www2.deloitte.com/global/en/pages/about-deloitte/articles/deloitte-brand-gets-makeover.html|title=Deloitte's brand gets a makeover|publisher=Deloitte|access-date=15 June 2016}}</ref>

In [[India]], Deloitte operates under several brand names, including A.F.Ferguson &Co., A.F.Ferguson Associates, S.B.Billimoria, C.C.Choksi & Co., P.C.Hansotia, Fraser & Ross and Deloitte Haskins & Sells (India).<ref>{{cite news |title=Deloitte and KPMG do not have license to operate in India |url=https://economictimes.indiatimes.com/tech/software/deloitte-kpmg-have-no-licence-to-do-audit-work-in-india/articleshow/3986506.cms |access-date=29 September 2018 |newspaper=The Economic Times}}</ref>

==Legal structure==
For many years, the organization and its network of member firms were legally organized as a Swiss {{lang|de|[[Swiss association|Verein]]}} (the equivalent of an unincorporated association). As of 31 July 2010, members of the ''Verein'' became part of Deloitte Touche Tohmatsu Limited (DTTL), a UK private company limited by guarantee without share capital.<ref name="gov.uk"/> Each member firm in its global network remains a separate and independent legal entity, subject to the laws and [[professional regulation]]s of the particular country or countries in which it operates.<ref name=structure>{{cite news |url=https://www.theguardian.com/business/2010/sep/20/deloitte-touche-tohmatsu-legal-registration-london |title=Deloitte Touche Tohmatsu quits Swiss system to make UK its new legal home |author=Andrew Clark |work=The Guardian |date=20 September 2010 |access-date=20 September 2010}}</ref>

This structure is similar to other [[professional services networks]] which seek to limit vicarious liability for acts of other members. As separate and legal entities, DTTL and its member firms cannot obligate each other. Professional services continue to be provided by member firms only and not DTTL. With this structure, the members should not be liable for the negligence of other independent members. This structure also allows them to be members of the [[International Federation of Accountants|IFAC]] Forum of Firms.<ref>{{cite web|url=http://www.ifac.org/about-ifac/forum-firms/|title=IFAC Forum of Firms|publisher=IFAC|access-date=2 October 2014|archive-date=22 November 2014|archive-url=https://web.archive.org/web/20141122205046/http://www.ifac.org/about-ifac/forum-firms|url-status=dead}}</ref>

In 2019, the U.K. partners in the firm received average pay of £882,000.<ref>{{cite news |title=PwC partners set for bumper pay boost despite audit criticism |url=https://www.ft.com/content/e5fd21aa-d87d-11e9-8f9b-77216ebe1f17 |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/e5fd21aa-d87d-11e9-8f9b-77216ebe1f17 |archive-date=10 December 2022 |url-access=subscription |url-status=live |access-date=1 July 2020 |work=Financial Times|date=16 September 2019}}</ref> In 2023, the average income of Deloitte partners in the U.K. topped £1,000,000 for the third year in a row.<ref>{{Cite news |last=Makortoff |first=Kalyeena |last2= |first2= |date=2023-09-28 |title=Average income of Deloitte UK partners tops £1m for third year in a row |url=https://www.theguardian.com/business/2023/sep/29/average-income-of-deloitte-uk-partners-tops-1m-for-third-year-in-a-row |access-date=2024-08-14 |work=The Guardian |language=en-GB |issn=0261-3077}}</ref>

==Services==
[[File:Deloitte Milan.jpg|thumb|Deloitte office building in Milan]]

Deloitte member firms offer services in the following functions, with country-specific variations on their legal implementation (i.e., all operating within a single company or through separate legal entities operating as subsidiaries of an umbrella legal entity for the country).<ref name="Deloitte">{{Cite web|url=https://www2.deloitte.com/global/en/pages/about-deloitte/articles/global-impact-report/global-report-business.html?icid=learn_more_content_click|title=Performance: By the numbers|publisher=Deloitte|access-date=11 July 2021}}</ref>

===Audit===
Audit provides the organization's traditional accounting and audit services, as well as internal auditing, IT control assurance and Media & Advertising Assurance.<ref>{{Cite web|url=https://www2.deloitte.com/global/en/services/audit.html|title=Audit & Assurance {{!}} Deloitte {{!}} Global services, reports, and insights|website=Deloitte|language=en|access-date=18 January 2020}}</ref>

Investors in [[Guangdong Kelon Electrical Holdings Company Limited]] have claimed that there was a failure to alert them to the company's poor financial position.<ref>{{cite web|url=https://www.scmp.com/article/542957/kelon-scandal-puts-deloitte-legal-firing-line|title=Kelon scandal puts Deloitte in legal firing line|website=South China Morning Post|date=April 2006 |access-date=9 November 2017}}</ref> Deloitte claims it did a good job on the project. Deloitte's global CEO defended the firm's work on the Kelon matter. The firm was the auditor for thirty months from 2002 to 2004. It qualified its opinion in 2004 as to company sales, returns, and allowances. The firm resigned from the Kelon account after completing the 2004 audit. Deloitte said it resigned from the account because management at the client was not committed to best practices in finance.<ref name="SCMPGOOD">{{cite news|last1=Anderlini|first1=Jamil|title=Deloitte defends 'good job' at Kelon|url=https://www.scmp.com/article/545705/deloitte-defends-good-job-kelon|access-date=13 November 2017|newspaper=South China Morning Post|date=22 April 2006}}</ref>

===Consulting===
Consulting assists clients by providing services in the offering areas of [[management consulting|strategy, analytics and M&A]], [[marketing|customer and marketing]], core business operations, [[human resource consulting|human capital]], and [[information technology consulting|enterprise technology and performance]]. Consulting is Deloitte's largest business, bringing over 40% of total revenues in 2021.<ref name="auto">{{cite news |last1=O'Dwyer |first1=Michael |last2=Foley |first2=Stephen |title=Deloitte revenues hit record on back of tech consulting boom |url=https://www.ft.com/content/71d455df-09a6-4cd0-b190-fbe22271a072 |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/71d455df-09a6-4cd0-b190-fbe22271a072 |archive-date=10 December 2022 |url-access=subscription |url-status=live |access-date=21 September 2022 |publisher=The Financial Times Ltd. |date=8 September 2022}}</ref>

In ''An American Sickness'' (2017), Dr. [[Elisabeth Rosenthal]] attributed to Deloitte a key role in counseling the adoption of "strategic billing" as a way of increasing revenues from hospital business. She dates this development from 2005, when Deloitte hired [[Tommy Thompson]], former secretary of health and human services, as chairman of its global healthcare practice.<ref>Elisabeth Rosenthal, ''An American Sickness: How Healthcare Became Big Business and How You Can Take It Back'' (New York: Penguin Press, 2017), pp. 33–35.</ref> In 2011, Deloitte was ranked No. 1 by revenue in all areas of healthcare consulting—life sciences, payer, provider, and government health.<ref>"Kennedy Ranks Deloitte as the Top Global Health Care Consulting Practice" (22 April 2011).</ref>

The firm implemented the [[SAP ERP|SAP]] [[Human resources|HR]] system for the [[Los Angeles Unified School District]] (LAUSD) for $95 million and because of faults in the system, some teachers were underpaid, overpaid, or not paid at all.<ref>{{cite web|url=http://media.www.dailytrojan.com/media/storage/paper679/news/2007/09/27/News/Lausd.|title=Teachers. Start. Boycott-2995901.shtml LAUSD teachers start boycott|website=Dailytrojan.com|access-date=16 November 2016}}{{Dead link|date=July 2018 |bot=InternetArchiveBot |fix-attempted=yes }}</ref><ref>{{cite web|url=https://www.slideshare.net/JoshVignona_/resource-link-from-archive |title=Teachers. Start. Boycott-2995901.shtml LAUSD teachers start boycott|website=slideshare.com|access-date=5 February 2020}}</ref> As of 31 December 2007, LAUSD had incurred a total of $140 million in payments to Deloitte to get the system working properly.<ref>{{cite web |url=http://blogs.zdnet.com/projectfailures/?p=431 |archive-url=https://web.archive.org/web/20080207063414/http://blogs.zdnet.com/projectfailures/?p=431 |url-status=dead |archive-date=7 February 2008 |title=Los Angeles school district SAP implementation still broken |date=8 October 2007 |publisher=ZDNet |access-date=2 October 2014}}</ref> In 2008, there was some evidence that the payroll issues had started to stabilize with errors below 1% according to LAUSD's chief operating officer.<ref>{{cite web |url=http://blogs.zdnet.com/projectfailures/?p=576&tag=rbxccnbzd1 |archive-url=https://web.archive.org/web/20090204002111/http://blogs.zdnet.com/projectfailures/?p=576&tag=rbxccnbzd1 |url-status=dead |archive-date=4 February 2009 |title=Update: LAUSD payroll problems stabilized |date=20 January 2008 |publisher=ZDNet |access-date=2 October 2014}}</ref>

The firm worked on a statewide case management system for the California Judicial Council which originally had a budget of around $260 million. Almost $500 million had been spent and costs were at one time projected to potentially run as high as $2 billion. No single court's system ever became fully operational.<ref>{{cite web|url=http://www.sacbee.com/2010/04/11/2669739/california-court-officials-judges.html|title=California court officials, judges spar over costly computer system|website=Sacbee.com|access-date=10 October 2017|archive-url=https://web.archive.org/web/20100413051627/http://www.sacbee.com/2010/04/11/2669739/california-court-officials-judges.html|archive-date=13 April 2010|url-status=dead}}</ref> California's Judicial Council terminated the project in 2012 citing actual deployment costs associated with the project and California's budget concerns.<ref>{{cite web |url=https://www.pcworld.com/article/252767/california_scraps_massive_courts_software_project.html |title=California Scraps Massive Courts Software Project |author=Chris Kanaracus |date=28 March 2012 |work=PC World |access-date=2 October 2014}}</ref>

===Financial advisory===
Financial advisory provides [[corporate finance]] services to clients, including dispute, personal and commercial [[bankruptcy]], forensics, e-discovery, document review, advisory, mergers & acquisitions, capital projects consulting and valuation services.<ref>{{Cite web|url=https://www2.deloitte.com/global/en/services/finance.html|title=Financial Advisory {{!}} Deloitte {{!}} Global financial advisory, services, reports, and insights|website=Deloitte|language=en|access-date=18 January 2020}}</ref>

===Tax and legal===
Tax and legal helps clients increase their net asset value, undertake the [[transfer pricing]] and international tax activities of multinational companies, minimize their tax liabilities, and implement tax computer systems. It also provides advice on the tax implications of various business decisions.<ref>{{cite web|url=https://www2.deloitte.com/tr/en/pages/deloitte-private/solutions/tax-and-legal.html|title=Tax and legal|publisher=Deloitte|access-date=11 July 2021}}</ref>

In November 2013, the international development charity [[ActionAid]] accused Deloitte of advising large businesses on how they could use [[Mauritius]] to avoid potentially hundreds of millions of dollars of tax in some of the poorest countries in Africa. Deloitte responded by saying that, in the absence of double-taxation treaties, they advise their clients to avail themselves of arrangements that could result in less taxes being paid to the countries in question. Deloitte also said it was wrong to say it is tax avoidance to make use of provisions in double tax treaties and that without such treaties investment might be reduced.<ref>{{cite web|url=https://www.theguardian.com/business/2013/nov/03/deloittes-tax-savings-investments-in-poor-countries|title=Deloitte promotes Mauritius as tax haven to avoid big payouts to poor African nations|first=Jamie|last=Doward|date=3 November 2013|access-date=9 November 2017|website=The Guardian}}</ref>

===GovLab===
GovLab is the internal [[think tank]] of Deloitte Consulting LLP's US federal government consulting practice, focused on innovation and government reform. Created in 2010, GovLab is based at New York University in New York, New York,<ref>{{cite web|url=https://www.thegovlab.org/about.html|title=About us|publisher=The GovLab|access-date=4 June 2020}}</ref> and typically undertakes eight or nine research topics per year, focusing on how future trends, technologies, and business models will affect government.<ref>{{cite magazine|url=https://www.forbes.com/sites/skollworldforum/2013/06/27/how-the-u-s-government-can-accelerate-the-impact-economy/|title=How The U.S. Government Can Accelerate The Impact Economy|magazine=Forbes|date=27 June 2013|access-date=9 March 2018}}</ref>

==Offices==
Deloitte operates across the world in more than 700 locations and over 150 countries, with nearly 470,000 employees as of 2025.<ref name=global2024/>

===Operations in India===
In the late 1990s, Deloitte commenced operations in [[India]], at the same time as another large auditing firm KPMG. In [[India]], ICAI regulations do not permit foreign firms to carry out audits in India.<ref name="et2">{{cite news |title=Deloitte, KPMG have no licence to do audit work in India |url=https://economictimes.indiatimes.com/tech/software/deloitte-kpmg-have-no-licence-to-do-audit-work-in-india/articleshow/3986506.cms |access-date=29 September 2018 |newspaper=The Economic Times |date=16 January 2009}}</ref> Hence Deloitte carries out audits in India under the name of C.C.Chokshi & Co., an existing auditing firm that it arranged an agreement with in 1998.<ref>{{cite news |last1=Mistry |first1=Sharad |title=Deloitte Touche Tohmatsu formalises tie-up with CC Chokshi |url=http://expressindia.indianexpress.com/fe/daily/19980319/07855734.html |access-date=29 September 2018 |newspaper=The Indian Express |date=19 March 1998 |archive-url=https://web.archive.org/web/20180915063657/http://expressindia.indianexpress.com/fe/daily/19980319/07855734.html |archive-date=15 September 2018 |url-status=dead }}</ref> In 1992, after India was forced to [[Economic liberalisation in India|liberalise]] under one of the conditions of the [[World Bank]] and [[IMF]] sponsored [[Bailout|bail out]], Deloitte was granted a license to operate in India. In 2004, [[A. F. Ferguson & Co.]], which has been in India for 110 years, joined Deloitte, following CC Chokshi & Company, Fraser & Ross, PC Hansotia & Company and SB Billimoria & Company.<ref>{{cite news |title=Its Official: Ferguson To Merge With Deloitte |url=https://www.financialexpress.com/archive/its-official-ferguson-to-merge-with-deloitte/113082/ |access-date=7 November 2019 |work=The Financial Express |date=17 August 2004}}</ref>

In India, Deloitte has two entities: Deloitte India and Deloitte US-India (USI), which is a region within the Deloitte US organization. Deloitte India caters to clients within India, while Deloitte USI is an entity of Deloitte US that is geographically located in India and caters to clients of the US member firm.<ref>{{Cite web|title=About Deloitte| url=https://www2.deloitte.com/ui/en/legal/about-deloitte.html|website=Deloitte United States| language=en| access-date=23 May 2020}}</ref>

== Awards and recognition ==
Deloitte, along with [[KPMG]], [[PwC]] and [[PA Consulting Group]] were recognized among the UK's best companies to work for in 2017.<ref>{{Cite web|url=http://www.consultancy.uk/news/13506/pwc-deloitte-kpmg-and-pa-among-top-25-uk-companies-to-work-for|title=PwC, Deloitte, KPMG and PA among top 25 UK companies to work for|website=Consultancy.uk|date=30 May 2017|access-date=30 May 2017}}</ref> That same year, Deloitte was ranked as one of the 10 best places to work for paternity leave by [[Fatherly]], an online resource for parenting news.<ref>{{cite news |author=Peter Jones |date=7 August 2017 |title=The 10 best places for dads to work in 2017 |url=https://www.usatoday.com/story/money/careers/2017/08/07/the-10-best-places-for-dads-to-work-in-2017/103826918/ |access-date=13 September 2017 |newspaper=USA Today}}</ref>

Deloitte was named the #1 accounting firm for the 10th year in a row by Inside Public Accounting in August 2018.<ref>{{Cite web|url=http://www.rubinbrown.com/2018-Inside-Public-Accounting-Top-100%20Firms.pdf|title=The 2018 INSIDE Public Accounting Top 100 Firms|date=August 2017|website=Inside Public Accounting|access-date=22 August 2017}}</ref> Deloitte's tax services have been globally recognized by [[ITR (magazine)|ITR]], with the firm notably winning three consecutive best transfer pricing awards in the Americas.<ref>{{cite news|last1=Shasiharan|first1=Prin| url = https://www.internationaltaxreview.com/article/b1n46y28d2yywr/americas-tax-awards-2020-the-winners | title = Americas Tax Awards 2020: The winners | date= 24 September 2020 | access-date = 10 November 2020 | newspaper = [[ITR (magazine)|ITR]]}}</ref> Also in 2018, the research firm [[Gartner]] stated that Deloitte has consistently ranked number one globally in "Security Consulting Services" based on revenue.<ref>{{Cite web|last=GmbH|first=finanzen net|title=Deloitte Ranked No. 1 in Security Consulting Services Worldwide for Sixth Consecutive Year by Gartner {{!}} Markets Insider|url=https://markets.businessinsider.com/news/stocks/deloitte-ranked-no-1-in-security-consulting-services-worldwide-for-sixth-consecutive-year-by-gartner-1027617050|access-date=18 July 2020|website=Business Insider|language=en-us}}</ref>

In 2019, [[Fortune (magazine)|''Fortune'']] magazine ranked Deloitte as one of the 100 Best Companies to Work For<ref>{{cite web |title=Fortune Magazine 2019 100 Best Companies to Work For |url=http://fortune.com/best-companies/deloitte/ |url-status=dead |archive-url=https://web.archive.org/web/20201124021711/https://fortune.com/best-companies/deloitte/ |archive-date=24 November 2020 |access-date=1 March 2019 |work=[[Fortune (magazine)|Fortune]]}}</ref> and ''Bloomberg Business'' has named Deloitte as the best place to launch a career.<ref>{{cite web |author=Lindsey Gerdes |date=3 September 2009 |title=The Best Places to Launch a Career |url=https://www.bloomberg.com/ss/09/09/0903_places_to_launch_a_career/2.htm |publisher=Bloomberg Business}}</ref>

In 2019, 2020, and 2021, Gartner stated that Deloitte was the No. 1 consulting service provider worldwide by revenue.<ref>{{Cite web|title=The FINANCIAL - Deloitte ranked No. 1 consulting service provider worldwide by Gartner|url=https://www.finchannel.com/~finchannel/world/77454-deloitte-ranked-no-1-consulting-service-provider-worldwide-by-gartner|access-date=6 January 2021|website=www.finchannel.com|date=11 July 2019 }}</ref><ref>{{Cite web|title=Deloitte Ranked No. 1 Consulting Service Provider Worldwide By Revenue According To Gartner|url=https://brandspurng.com/2020/05/28/deloitte-ranked-no-1-consulting-service-provider-worldwide-by-revenue-according-to-gartner/|access-date=6 January 2021|website=Brand Spur| date=28 May 2020 |language=en-US}}</ref><ref>{{cite web |title=Deloitte ranked No. 1 consulting service provider worldwide by revenue according to Gartner® Market Share report |url=https://www2.deloitte.com/global/en/pages/about-deloitte/press-releases/deloitte-ranked-no-1-consulting-service-provider-worldwide-by-revenue-according-to-gartner-market-share-report.html |website=Deloitte |access-date=4 November 2022}}</ref>

==Litigation and regulatory action - auditing==
=== 1MDB scandal ===
During 2021, Deloitte's [[Malaysia]] affiliate agreed to pay the Malaysia government $80 million to resolve all claims related to its auditing of accounts of scandal-linked state fund  [[1Malaysia Development Berhad scandal|1MDB]] and its unit SRC International from 2011 to 2014.  Malaysian and U.S. authorities say at least $4.5 billion was stolen from 1MDB between 2009 and 2014 by high-level officials of the fund and their associates.<ref>{{Cite news|date=3 March 2021|title=Deloitte to pay Malaysia $80 million to settle claims linked to 1MDB|work=Reuters|url=https://www.reuters.com/article/us-malaysia-politics-1mdb-deloitte-idUSKBN2AV10Y|access-date=28 January 2022}}</ref>

===Adelphia Communications===
The [[Securities and Exchange Commission]] announced on 26 April 2005 that Deloitte had agreed to pay $50 million to settle charges relating to  [[Adelphia Communications Corporation|Adelphia's]] 2000 financial statements.<ref>{{cite web|url-status=dead|url=http://www.financegates.com/news/business_news/2005-04-26/deloitte_04262005.html|title=MLS Canada – Canadian Real Estate Property Listing|website=Financegates.com|access-date=9 November 2017|archive-url=https://web.archive.org/web/20130521091731/http://www.financegates.com/news/business_news/2005-04-26/deloitte_04262005.html|archive-date=21 May 2013}}</ref><ref>{{cite web|url=https://www.sec.gov/news/press/2005-65.htm|title=SEC Charges Deloitte & Touche for Adelphia Audit|website=Sec.gov|access-date=9 November 2017}}</ref> The settlement was later reported to be as high as $210m or $167.5m.<ref>{{cite news|url=https://www.nytimes.com/2006/12/09/business/09adelphia.html|title=Deloitte and Banks to Pay $455 Million to Adelphia Investors|date=9 December 2006|newspaper=[[The New York Times]]|access-date=9 November 2017}}</ref><ref>{{cite web|url=http://ww2.cfo.com/accounting-tax/2007/08/deloitte-to-pay-167-5m-in-adelphia-case/|title=Deloitte to Pay $167.5M in Adelphia Case -|first=Sarah|last=Johnson|date=6 August 2007|website=2.cfo.com|access-date=9 November 2017|archive-date=1 January 2019|archive-url=https://web.archive.org/web/20190101134809/http://ww2.cfo.com/accounting-tax/2007/08/deloitte-to-pay-167-5m-in-adelphia-case/|url-status=dead}}</ref>

=== Autonomy ===
Following [[HP Autonomy|Autonomy's]] 2011 sale to [[Hewlett-Packard]], the British software company was accused of accounting improprieties that contributed to an $8.8 billion write-down of Autonomy's value. In May 2018, the UK-Based [[Financial Reporting Council]] (FRC) launched disciplinary action against Deloitte, Autonomy's auditor at the time of the sale. Deloitte partners who led the audit were accused of failing to correct false and misleading information filed with the FRRP, and otherwise failing to act with objectivity during the course of the audit. The FRC's action followed legal proceedings in the US that found former Autonomy executive Sushovan Hussain guilty of fraud earlier that month.<ref name=ftautonomy>{{Cite news|url=https://www.ft.com/content/cab0c718-64a1-11e8-90c2-9563a0613e56 |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/cab0c718-64a1-11e8-90c2-9563a0613e56 |archive-date=10 December 2022|title=UK watchdog acts against Deloitte over Autonomy accounts|last=Fildes|first=Nic|website=Financial Times| date=31 May 2018 |language=en-GB|access-date=3 April 2019|url-access=subscription}}</ref>

During 2020, Deloitte was fined a record £15 million and two of its former partners involved in the audits, Richard Knights and Nigel Mercer, were also fined and sanctioned by the UK accounting watchdog, the FRC.<ref>{{Cite news|last=Partridge|first=Joanna|date=15 September 2020|title=Deloitte fined record £15m for failings in Autonomy audits|work=The Guardian|url=https://www.theguardian.com/business/2020/sep/17/deloitte-fined-record-15m-for-failings-in-autonomy-audits|access-date=28 January 2022}}</ref>

=== Banro Corporation audit independence fine ===
The [[Public Company Accounting Oversight Board]] fined Deloitte Canada $350,000 for failing to maintain its independence during three consecutive audits of a Canadian gold-mining company, Banro Corporation.<ref>{{Cite news|last=Cohn|first=Michael|date=16 October 2018|title=Deloitte Canada fined $350,000 for independence problems|work=Accounting Today|url=https://www.accountingtoday.com/news/deloitte-canada-fined-350-000-for-independence-violations|access-date=28 January 2022}}</ref>

=== Bondfield Construction ===
CPA Ontario has brought disciplinary charges against two Deloitte partners, Felice "Phil" Iorio and Steve Kostich, for professional misconduct related to their work on audits for failed [[Bondfield Construction]].  Bondfield filed for creditor protection in April 2019 and former executives are being sued to recover funds siphoned from the company through a fraudulent invoicing scheme.<ref name="Deloitte incompetence">{{cite news |last1=Milstead |first1=David |title=Two Deloitte partners face misconduct allegations over audits of insolvent Bondfield Construction |url=https://www.theglobeandmail.com/business/article-two-deloitte-partners-face-misconduct-allegations-over-audits-of/ |access-date=12 October 2024 |publisher=The Globe and Mail |date=31 May 2024}}</ref>

===Carillion===
Deloitte had acted as internal auditor at construction and services giant [[Carillion]] before it went into liquidation in January 2018. The "excoriating" and "damning" (''[[The Guardian]]'')<ref name="Davies-16May2018">{{cite news|last1=Davies|first1=Rob|title='Recklessness, hubris and greed' – Carillion slammed by MPs|url=https://www.theguardian.com/business/2018/may/16/recklessness-hubris-and-greed-carillion-slammed-by-mps|access-date=16 May 2018|work=The Guardian|date=16 May 2018}}</ref> final report of the Parliamentary inquiry into Carillion's collapse was published on 16 May 2018, and criticised Deloitte for its involvement in the company's financial reporting practices.<ref name="Carillion report conclusion">{{cite book|title=Carillion: Second Joint report from the Business, Energy and Industrial Strategy and Work and Pensions Committees of Session 2017–19|url=https://publications.parliament.uk/pa/cm201719/cmselect/cmworpen/769/769.pdf|date=2018|publisher=House of Commons|location=London|page=91|access-date=16 May 2018}}</ref>

=== China Huarong Asset Management Co. ===
In March 2023, [[China]]'s Ministry of Finance fined Deloitte 211.9 million yuan ($30.8 million) for illegal auditing deficiencies in the audit of [[China CITIC Financial Asset Management|China Huarong Asset Management Co.]] The Ministry found that Deloitte had failed to maintain professional skepticism during the audit. Huarong was fined 800,000 yuan ($116,227) for its role in the auditing deficiencies.<ref>{{cite web |last1=White |first1=Edward |last2=Yu |first2=Sun |last3=Ho-him |first3=Chan |title=China suspends Deloitte's Beijing office over Huarong audit 'deficiencies' |url=https://www.ft.com/content/9c28943f-e7ae-4b28-9e0c-3c654c2f097a |website=www.ft.com |access-date=16 June 2024 |date=17 March 2023}}</ref><ref>{{cite web |title=China fines Deloitte $31 million for auditing negligence |url=https://www.reuters.com/business/china-fines-deloitte-31-mln-auditing-negligence-2023-03-18/ |website=Reuters |access-date=16 June 2024 |date=18 March 2023}}</ref>

=== Johnston Press audit ===
During 2020, the UK accounting regulator, the Financial Reporting Council, fined Deloitte's UK affiliate £362,500 and reprimanded both the firm and an unnamed audit partner over failures in its audit work for [[Johnston Press]].<ref>{{Cite news|last=Kinder|first=Tabby|date=6 November 2020|title=Deloitte fined over failures in Johnston Press audit|work=The Financial Times|url=https://www.ft.com/content/7f32fab4-399d-401e-9992-b7485300eb31 |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/7f32fab4-399d-401e-9992-b7485300eb31 |archive-date=10 December 2022|access-date=28 January 2022|url-access=subscription}}</ref>

===Livent===
In proceedings arising from the insolvency of the former entertainment company [[Livent]], in April 2014 its special receiver obtained judgment against Deloitte for $84,750,000 in the [[Ontario Superior Court of Justice]], in relation to Deloitte's failure to exercise its [[duty of care]] with respect to the audit of Livent's financial statements during 1993{{endash}}1998.<ref>{{cite news|author = Drew Hasselback|title = Livent auditor Deloitte ordered to pay $84.8-million for failing detect fraud|url = http://business.financialpost.com/2014/04/06/livent-auditor-deloitte-ordered-to-pay-84-8-million-for-failing-detect-fraud/|newspaper = [[Financial Post]]|date = 6 April 2014}}, discussing {{cite CanLII|litigants=Livent Inc v Deloitte & Touche LLP|link=|year=2014|court=onsc|num=2176|pinpoint=|parallelcite=|date=4 April 2014|courtname=|juris=}}</ref> The ruling was upheld by the [[Ontario Court of Appeal]] in January 2016,<ref>{{cite news |last=Perkel |first= Colin |date=8 January 2016 |title=Court upholds $118-million award against negligent Livent auditor Deloitte |url=http://business.financialpost.com/legal-post/court-upholds-118-million-award-against-negligent-livent-auditor-deloitte |newspaper=Financial Post}}, discussing {{cite CanLII| litigants=Livent Inc v Deloitte & Touche| link=| year=2016| court=onca| num=11| date=8 January 2016}}</ref><ref>{{cite web |url=http://www.thecourt.ca/2016/01/19/livent-v-deloitte-has-the-fat-lady-finally-sung/ |title=''Livent v Deloitte'': Has The Fat Lady Finally Sung? |last1=Joseph |first1=Patricia |date=19 January 2016 |website=thecourt.ca |publisher=[[Osgoode Hall Law School]] |url-status=dead |archive-url=https://web.archive.org/web/20160125185555/http://www.thecourt.ca/2016/01/19/livent-v-deloitte-has-the-fat-lady-finally-sung/ |archive-date=25 January 2016 }}</ref><ref>{{cite news |last=Buckstein |first=Jeff |date=March 2016 |title=Livent ruling seen as game changer for auditing duties |url=http://thebottomlinenews.ca/articles/820 |url-status=dead |archive-url=https://web.archive.org/web/20160306134737/http://thebottomlinenews.ca/articles/820 |archive-date=6 March 2016 |newspaper=The Bottom Line}}</ref> but in December 2017, the [[Supreme Court of Canada]] in ''[[Deloitte & Touche v Livent Inc (Receiver of)]]'' allowed an appeal in part, declaring that liability existed only in respect of Deloitte's negligence in conducting the audit for Livent's 1997 [[fiscal year]], and accordingly reduced the amount of damages awarded to $40,425,000.<ref>{{cite CanLII|litigants=Deloitte & Touche v Livent Inc (Receiver of)|link=Deloitte & Touche v Livent Inc (Receiver of)|year=2017|court=scc|num=63|parallelcite=|date=20 December 2017}}</ref>

=== Mitie plc ===
In April 2022, Deloitte's UK affiliate was fined £2 million by the UK accounting regulator, Financial Reporting Council, over its 2016 audit of British outsourcing firm, [[Mitie|Mitie plc]].<ref>{{Cite news |last=Ridley |first=Kirstin |date=22 April 2022 |title=Deloitte, partner fined and sanctioned over Mitie audit |work=Reuters |url=https://www.reuters.com/business/finance/deloitte-partner-fined-sanctioned-over-mitie-audit-2022-04-21/ |access-date=3 February 2023}}</ref>

===Philip Services Corp===
[[Philip Services Corp]] was a Canadian metals recycling company that collapsed following the revelation of accounting issues and internal fraud.  A class action launched on behalf of US investors against Philip's Canadian auditor  Deloitte & Touche LLP was settled in 2007 with Deloitte agreeing to pay US$50.5 million.<ref>{{cite news |title=Deloitte to pay $50.5 mln in Philip Services suit |url=https://www.reuters.com/article/idUSN2340236820070323 |access-date=20 February 2023 |publisher=Reuters |date=23 March 2007}}</ref>

===Serco Geografix Ltd.===
On 4 July 2019, the Financial Reporting Council fined Deloitte for its failure to properly audit the accounts of a [[Serco|Serco Group]] subsidiary, Serco Geografix, in 2011 and 2012. The United Kingdom's watchdog fined Deloitte £4.2 million and an additional £300,000 towards the costs of the investigation.<ref>{{cite news|url=https://uk.reuters.com/article/uk-frc-deloitte-fine/watchdog-imposes-5-8-million-fines-on-deloitte-partner-for-audit-failures-idUKKCN1TZ0H5?rpc=401&|archive-url=https://web.archive.org/web/20200729222421/https://uk.reuters.com/article/uk-frc-deloitte-fine/watchdog-imposes-5-8-million-fines-on-deloitte-partner-for-audit-failures-idUKKCN1TZ0H5?rpc=401&|url-status=dead|archive-date=29 July 2020|title=Watchdog imposes $5.8 million fines on Deloitte, partner for audit failures|work=Reuters|access-date=3 July 2019}}</ref><ref>{{cite news|url=https://www.ft.com/content/062eff9c-9e23-11e9-b8ce-8b459ed04726 |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/062eff9c-9e23-11e9-b8ce-8b459ed04726 |archive-date=10 December 2022 |url-access=subscription |url-status=live|title=Deloitte fined £6.5m over Serco audit misconduct|newspaper=Financial Times|access-date=3 July 2019}}</ref>

Deloitte's audit engagement partner Helen George was also fined £97,500. FRC stated that the two parties have been sanctioned for their failure to act in accordance with the fundamental principle of professional competence and due care.<ref>{{cite news|url=https://www.theguardian.com/business/2019/jul/04/deloitte-fined-42m-over-serco-tagging-scandal|title=Deloitte fined £4.2m over Serco tagging scandal|newspaper=The Guardian|access-date=4 July 2019}}</ref>

=== SIG plc ===
In December 2022, Deloitte's UK affiliate was fined £0.9 million (approximately US$1.1 million) by the Financial Reporting Council. The fine came as a result of the company failing to obtain and supply enough audit evidence testing, rebate terms and debtor balances in connection with the 2015/16 audit of the British subsidiary of Swiss building materials firm [[SIG Combibloc Group|SIG plc]].<ref>{{cite web|url=https://www.theguardian.com/business/2022/dec/22/deloitte-fined-900000-watchdog-sig-audit-failures|title=Deloitte fined £900,000 by watchdog over SIG audit failures|website=theguardian.com|date=22 December 2022}}</ref>

===Standard Chartered===
In August 2012, Deloitte Financial Advisory Services (DFAS) publicly denied that as the official internal auditors for [[Standard Chartered]], it helped the bank cover up money laundering operations related to Iran which were earning the bank significant profits by "intentionally omitting critical information".<ref>[https://www.telegraph.co.uk/finance/newsbysector/banksandfinance/9460445/Standard-Chartered-Deloitte-rejects-US-claims.html Standard Chartered: Deloitte rejects US claims], ''The Daily Telegraph'', 7 August 2012</ref> DFAS paid the state of New York a $10 million settlement, was required not to take on new business for one year from designated New York banks, and was required to implement reforms in order to prevent similar problems in the future. The state regulator stated that there was no evidence DFAS intentionally helped Standard Chartered launder money.<ref name="StandardC">{{cite news|last1=Freifeld|first1=Karen|title=Deloitte to pay NY $10 million for misconduct over Standard Chartered|url=https://www.reuters.com/article/us-deloitte-stanchart-ny/deloitte-to-pay-ny-10-million-for-misconduct-over-standard-chartered-idUSBRE95H0VC20130618|access-date=5 December 2017|work=Reuters|date=18 June 2013}}</ref>

=== Steinhoff International ===
In June 2018, Dutch investors' organisation VEB instituted class action legal proceedings against Deloitte's Dutch affiliate on behalf of shareholders who suffered losses as a result of the fraud committed by [[Steinhoff International]]. VEB claimed that Deloitte was liable for deficiencies in the audit of Steinhoff.<ref name=investors>{{cite web |title=VEB settles with Deloitte in connection with Steinhoff settlement |url=https://europeaninvestors.eu/?p=1305 |website=European Investors |access-date=17 June 2024 |date=29 October 2020}}</ref>

In October 2020, VEB withdrew its case after the Dutch and South African Deloitte firms agreed to contribute a combined €70 million towards a combined settlement offered by Steinhoff to settle all claims against Steinhoff as a result of the fraud.<ref name=investors/><ref>{{cite web |last1=Cronje |first1=Jan |title=Deloitte agrees to pay out up to R1.3bn in compensation to claimants against Steinhoff |url=https://www.news24.com/fin24/companies/deloitte-agrees-to-pay-out-up-to-r13bn-in-compensation-to-claimants-against-steinhoff-20210215 |website=News24 |access-date=17 June 2024 |date=15 February 2021}}</ref> In a statement published by VEB, it was stated that the settlement by Deloitte did not imply an admission of guilt.<ref>{{cite web |title=Implementation of Steinhoff-settlement: European Investors-VEB settlement with Deloitte |url=https://www.veb.net/artikel/08167/implementation-of-steinhoff-settlement-european-investors-veb-settlement-with-deloitte |website=VEB |access-date=17 June 2024 |date=10 May 2021}}</ref>

=== Tingo ===
A Deloitte network firm named Brightman Almagor Zohar & Co., sometimes known as Deloitte Israel, gave an unqualified audit opinion on the accounts of [[Tingo Group]], Inc for 2022.<ref>{{Cite web |title=ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022....TINGO GROUP, INC. |url=https://www.sec.gov/Archives/edgar/data/854800/000121390023025186/f10k2022_tingogroupinc.htm#:~:text=Determine%20the%20Accounting%20Acquirer%20and%20Evaluate%20the%20Valuation%20and%20Balance%20Sheet%20Presentation%20of%20the%20Consideration%20%E2%80%93%20Acquisition%20of%20Tingo%20Mobile%20Ltd%20%E2%80%93%20Refer%20to%20Note%2013%20to%20the%20Fi |access-date=2024-01-04 |website=United States Securities and Exchange Commission.}}</ref> This became controversial when a report by [[Hindenburg Research]] identified "obvious errors" in Tingo's financials, making Hindenburg "suspect Deloitte Israel missed or rushed through procedures that would have uncovered important findings",<ref>{{Cite web |date=2023-06-06 |title=Tingo Group: Fake Farmers, Phones, and Financials—The Nigerian Empire That Isn't – Hindenburg Research |url=https://hindenburgresearch.com/tingo/ |access-date=2024-01-04 |language=en-US}}</ref> and the [[U.S. Securities and Exchange Commission]] accused Tingo Group and others of a fraud of "staggering" scope.<ref>{{Cite web |date=2023-12-18 |title=Case 1:23-cv-10928 Document 1 |url=https://www.sec.gov/files/litigation/complaints/2023/comp25913.pdf |access-date=2024-01-04 |website=United States Securities and Exchange Commission}}</ref><ref>{{Cite news |title=SEC charges fintech Tingo chief with 'massive' fraud after Hindenburg short position |url=https://www.ft.com/content/228fac01-1e93-4162-8f14-dcac297a44ad |access-date=2024-01-04 |newspaper=Financial Times|date=18 December 2023 |last1=Quinio |first1=Akila |last2=Adeoye |first2=Aanu }}</ref>

===Tongaat Hulett===
In January 2022, [[South Africa]]n sugar producer [[Tongaat Hulett]] announced that it would be suing Deloitte for failing to detect irregularities in its financial statements from 2011-2018 that led to the equity of the company being overstated by R12 billion.<ref>{{cite web |last1=Magubane |first1=Khulekani |title=Tongaat to pursue Deloitte after massive financial scandal |url=https://www.news24.com/fin24/companies/tongaat-to-pursue-deloitte-after-massive-financial-scandal-20220118 |website=News24 |access-date=16 June 2024 |date=18 January 2022}}</ref>

In February 2023, Tongaat and Deloitte reached a settlement, in which Deloitte would pay Tongaat R260 million for six years of audited financial statements without admitting liability.<ref>{{cite web |last1=Gernetzky |first1=Compiled by Karl |title=Tongaat reaches R260m settlement with Deloitte, yet again delays rescue plan |url=https://www.news24.com/fin24/companies/tongaat-reaches-r260m-settlement-with-deloitte-yet-again-delays-rescue-plan-20230223 |website=News24 |access-date=16 June 2024 |date=23 February 2023}}</ref>

==Litigation and regulatory action - consulting and oversight==

=== Bandar Malaysia Sdn Bhd ===
During 2019, the Malaysian regulator Securities Commission Malaysia (SC) reprimanded and imposed penalties of RM2.2 million (~$0.5 million) on Deloitte's Malaysian affiliate relating to the Islamic Finance RM2.4 billion ($0.6 billion) (Sukuk Murabahah Programme).<ref>{{Cite web|date=30 January 2019|title=SC REPRIMANDS AND FINES DELOITTE RM2.2 MILLION|url=https://www.sc.com.my/resources/media/media-release/sc-reprimands-and-fines-deloitte-rm22-million|url-status=live|access-date=28 January 2022|website=Securities Commission Malaysia|archive-url=https://web.archive.org/web/20210301062214/https://www.sc.com.my/resources/media/media-release/sc-reprimands-and-fines-deloitte-rm22-million |archive-date=1 March 2021 }}</ref>

===Canadian Bar Association===
In September 2003, Deloitte reported to the [[Canadian Bar Association]] (CBA) that motor vehicle accident insurance claims for bodily injury had been declining since 1999 adjusted for inflation. This contradicted the [[Government of Alberta|government]]'s and [[Insurance industry|industry]]'s argument that [[general damages]] for soft-tissue injury had to be capped at $4,000. Within hours of release, a member of Deloitte was communicating with the Insurance Bureau of Canada without the knowledge of CBA (their client) and providing confidential information. The Institute of Chartered Accountants of Alberta found Deloitte guilty of unprofessional conduct and fined the firm $40,000.<ref>{{cite web|url=http://www.canada.com/story_print.html?id=726159b7-ddc8-4d68-a346-be5c0ca0edb4&sponsor=|archive-url=https://web.archive.org/web/20120214024534/http://www.canada.com/story_print.html?id=726159b7-ddc8-4d68-a346-be5c0ca0edb4&sponsor=|url-status=dead|archive-date=14 February 2012|title=Accountant penalized for info leak|date=13 January 2008|publisher=Canada.com|access-date=15 May 2018}}</ref>

=== Eskom ===
In October 2019, South African power utility [[Eskom]] announced that it was suing Deloitte's South African affiliate, Deloitte Consulting, in order to recover R207 million paid for two consulting contracts that were improperly-awarded in 2016. According to the court affidavit filed in the [[Johannesburg High Court]] by Eskom chairperson [[Jabu Mabuza]], in one of the contracts awarded to Deloitte, Deloitte bid R88.8-million while the bids from other consulting firms were R14.6-million and R13.3-million. In the second contract, Deloitte bid R79.1-million, and the competing bids were R16-million and R9.1-million.<ref name=Amabhungane>{{cite web |last1=Comrie |first1=Susan |title=The dirt on Deloitte's consulting deals at Eskom, Part 1 |url=https://amabhungane.org/the-dirt-on-deloittes-consulting-deals-at-eskom-part-1/ |website=amaBhungane |access-date=16 June 2024 |language=en-ZA |date=15 January 2020}}</ref>

In an interview with [[AmaBhungane]], Deloitte Consulting's managing director for Africa, Thiru Pillay, claimed that Eskom was trying to bully Deloitte into a settlement, He further stated that Deloitte had not conceded to being “complicit with irregular procurement” and denied "any undertone of corruption" with regards to the Eskom contracts.<ref name=Amabhungane/>

On 21 March 2020, Eskom announced that Deloitte and Eskom had reached an out of court [[Settlement (litigation)|settlement]] in which Deloitte agreed to pay back R150 million of the R207 million originally sought by Eskom. In a joint statement released by Eskom and Deloitte, the parties agreed that there was no evidence of corruption in the deal, and that there were "technical irregularities" in the procurement process.<ref>{{cite web |title=Eskom reaches out of court settlement with Deloitte Consulting - SABC News - Breaking news, special reports, world, business, sport coverage of all South African current events. Africa's news leader. |url=https://www.sabcnews.com/sabcnews/eskom-reaches-out-of-court-settlement-with-deloitte-consulting/ |access-date=16 June 2024 |date=21 March 2020}}</ref>

In April 2020, Deloitte told AmaBhungane that two directors, Pillay, and the lead consultant on the Eskom contracts, Shamal Sivasanker, had resigned from the firm effective 31 March 2020.<ref>{{cite web |last1=Comrie |first1=Susan |title=Update: In the wake of Eskom scandal, two Deloitte directors resign |url=https://amabhungane.org/update-in-the-wake-of-eskom-scandal-two-deloitte-directors-resign/ |website=amaBhungane |access-date=16 June 2024 |language=en-ZA |date=9 April 2020}}</ref>

In November 2021, Eskom announced that Deloitte had been selected as Eskom's new external auditor, after the expiration of its contract with [[Grant Thornton]].<ref>{{cite web |title=Eskom picks Deloitte as next external auditors |url=https://www.news24.com/fin24/companies/eskom-picks-deloitte-as-next-external-auditors-20211104 |website=News24 |access-date=16 June 2024 |date=4 November 2021}}</ref>

=== Netherlands regulator fine ===
During 2016, the Netherlands Authority for the Financial Markets (AFM) imposed an administrative fine of €1.81 million (~$2 million) on Deloitte's Dutch affiliate, Deloitte Accountants B.V. because it failed to comply with its duty of care in inspection audits.<ref>{{Cite web|date=24 March 2016|title=AFM imposes an administrative fine on Deloitte for failure to comply with its duty of care|url=https://www.afm.nl/en/nieuws/2016/mrt/boete-deloitte|url-status=live|access-date=28 January 2022|website=Netherlands Authority for the Financial Markets|archive-url=https://web.archive.org/web/20170626205542/https://www.afm.nl/en/nieuws/2016/mrt/boete-deloitte |archive-date=26 June 2017 }}</ref>

=== Quality control failures in Canada ===
During 2021, the US [[Public Company Accounting Oversight Board]] (PCAOB) fined Deloitte's Canadian affiliate $350,000 as a civil penalty for failure to institute reasonable assurance quality controls.<ref>{{Cite news|last=Jaeger|first=Jacyln|date=1 October 2021|title=CAOB fines Deloitte Canada $350K for quality control failures|work=Compliance Week|url=https://www.complianceweek.com/accounting-and-auditing/pcaob-fines-deloitte-canada-350k-for-quality-control-failures/30885.article#:~:text=The%20PCAOB%20further%20required%20the,employees%20involved%20in%20any%20audit.|access-date=28 January 2022}}</ref>

=== Rhode Island Benefits system ===
During 2020, Deloitte's US consulting arm agreed to pay the State of Rhode Island and the US federal government $50 million as a settlement relating to its design of a troubled computer system for its state benefits programs.<ref>{{Cite news|date=20 February 2020|title=State gets $30M in Deloitte settlement|work=Rhode Island Lawyer's Weekly|url=https://rilawyersweekly.com/blog/2020/02/20/state-gets-30m-in-deloitte-settlement/|access-date=28 January 2022}}</ref>

=== US companies in China ===
The [[Securities and Exchange Commission]] announced on 29 September 2022 that Shanghai-based Deloitte Touche Tohmatsu Certified Public Accountants LLP (Deloitte-China) had agreed to pay $20 million to settle charges relating to failures in complying with requirements for auditing US companies in China and Chinese companies in the US.<ref>{{cite web|url=https://www.sec.gov/news/press-release/2022-176|title=Deloitte's Chinese Affiliate to Pay $20 Million Penalty for Asking Audit Clients to Conduct Their Own Audit Work|website=Sec.gov|access-date=2 October 2022}}</ref> Deloitte-China, also known as Deloitte Hua Yong, self-reported the deficiencies found in 12 fiscal year 2018 audits.<ref>{{cite web|url=https://deloittehuayong.com.cn/en/news/deloitte-statement-Sep22.html|title=Deloitte Hua Yong Settlement with the U.S. SEC Firm Statement|website=Sec.gov|access-date=2 October 2022}}</ref> Auditors asked clients to prepare their own paperwork to show that Deloitte-China had completed audits in at least 21 instances, creating the illusion that it followed relevant requirements when there was no evidence of it doing so.<ref>{{Cite news|last1=Palma|first1=Stefania|last2=Foley|first2=Stephen|date=30 September 2022|title=SEC Fines Deloitte China for Audit Failures|work=Thomson Reuters Tax & Accounting|url=https://tax.thomsonreuters.com/news/sec-fines-deloitte-china-for-audit-failures/|access-date=2 October 2022}}</ref> For nine clients with operations in China, Deloitte's US office also outsourced its audit work to Deloitte China.<ref>{{Cite news|last=Ho|first=Soyoung|date=29 September 2022|title=Deloitte China allowed clients to do own audit work, finds SEC|work=Financial Times|url=https://www.ft.com/content/f95c6709-0105-4d35-95c4-cfff915dc44b |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/f95c6709-0105-4d35-95c4-cfff915dc44b |archive-date=10 December 2022 |url-access=subscription |url-status=live|access-date=2 October 2022}}</ref>

=== US unemployment portals ===
Deloitte Consulting has been heavily involved in building unemployment insurance web portals across various US states, including Ohio, Colorado and Illinois. In May 2020, it was revealed that major security weaknesses existed in the web portals of these states. Proposed class actions were filed against the company.<ref>{{Cite web|title=Deloitte Sued Over Pandemic Unemployment Website Data Breaches|url=https://news.bloomberglaw.com/privacy-and-data-security/deloitte-sued-over-pandemic-unemployment-website-data-breaches|access-date=22 June 2020|website=news.bloomberglaw.com|language=en}}</ref> This follows similar short-fallings in Florida's unemployment portal. The CONNECT site, designed by Deloitte, was described as a "colossal failure" as it was created over-budget, delivered late, and did not work. In May 2020, an investigation was ordered by Florida Governor [[Ron DeSantis]], finding that Deloitte ran insufficient stress testing.<ref>{{Cite web|title=Report: Company behind flawed unemployment website says Florida got what it asked for|url=https://www.wtsp.com/article/money/business/connect-website-florida-unemployment-deloitte/67-644f9528-3b11-4080-bad9-fdca8f6cfb37|access-date=22 June 2020|website=wtsp.com| date=10 May 2020 |language=en-US}}</ref><ref>{{Cite web |last=Downey |first=Renzo |date=2021-03-05 |title=CONNECT investigation first findings: Deloitte ran insufficient stress testing |url=https://floridapolitics.com/archives/409408-connect-investigation-first-findings-deloitte-ran-insufficient-stress-testing/ |access-date=2024-08-14 |website=[[Florida Politics]] |language=en-US}}</ref>

==Computer hack==
In September 2017, ''[[The Guardian]]'' reported that Deloitte suffered a cyberattack that breached the confidentiality of its clients and 244,000 staff, allowing the attackers to access "usernames, passwords, IP addresses, architectural diagrams for businesses and health information". Reportedly, Deloitte had stored the affected data in Microsoft's [[Microsoft Azure|Azure]] cloud hosting service, without [[two-step verification]]. The attackers were thought to possibly have had access from as early as October 2016.<ref name="guardsep2017">{{cite web|url=https://www.theguardian.com/business/2017/sep/25/deloitte-hit-by-cyber-attack-revealing-clients-secret-emails|title=Deloitte hit by cyber-attack revealing clients' secret emails|first=Nick|last=Hopkins|date=25 September 2017|access-date=10 October 2017|website=The Guardian}}</ref> [[Brian Krebs]] reported that the breach affected all of Deloitte's email and [[Superuser|administrative user]] accounts.<ref>{{cite web|url=https://krebsonsecurity.com/2017/09/source-deloitte-breach-affected-all-company-email-admin-accounts/|title=Source: Deloitte Breach Affected All Company Email, Admin Accounts – Krebs on Security|website=krebsonsecurity.com|date=26 September 2017 |access-date=10 October 2017}}</ref><ref>{{cite magazine|url=https://www.wired.com/story/security-news-of-the-week-deloitte-sonic-whole-foods-breach/|title=Security News This Week: The Deloitte Breach Was Worse Than We Thought|magazine=Wired|access-date=9 November 2017}}</ref> A later report by ''The Wall Street Journal'' repeated Deloitte's statement that only a few clients were affected. Deloitte reportedly first noticed suspicious activity in April 2017. Deloitte said that its businesses weren't disrupted and no sensitive information was compromised, and that its investigators were eventually able to read every email obtained by the hackers.<ref name="WallCyber">{{cite news|last1=Rapoport|first1=Michael|title=New York Investigates Deloitte Cyberbreach|newspaper=The Wall Street Journal|date=13 October 2017}}</ref>

In October 2017, ''The Guardian'' reported that client accounts compromised in the breach included, but were not limited to, the [[US Department of Defense]], the [[US Department of Homeland Security]], the [[US State Department]], the [[US Department of Energy]], mortgage companies [[Fannie Mae]] and [[Freddie Mac]], the [[National Institutes of Health]] (NIH), and the [[US Postal Service]].<ref>{{cite web|url=https://www.theguardian.com/business/2017/oct/10/deloitte-hack-hit-server-containing-emails-from-across-us-government|title=Deloitte hack hit server containing emails from across US government|first=Nick|last=Hopkins|date=10 October 2017|access-date=10 October 2017|website=The Guardian}}</ref> Fannie Mae and Freddie Mac issued statements saying they were not affected by the attack and denied that any of their data was compromised.<ref name="BankerCyber">{{cite news|last1=Berry|first1=Kate|title=Fannie, Freddie not affected by Deloitte breach, GSEs say|url=https://www.americanbanker.com/news/fannie-freddie-not-impacted-by-deloitte-breach-gses-say|access-date=6 December 2017|publisher=American Banker|date=10 October 2017}}</ref>

Deloitte said that it immediately contacted legal authorities and six clients. Deloitte also increased security measures on the advice of both internal and external experts.<ref name="ReutersCyber">{{cite news|last1=Sandle|first1=Paul|last2=Finkle|first2=Jim|title=Deloitte hacked, says 'very few' clients affected|url=https://www.reuters.com/article/us-deloitte-cyber/deloitte-hacked-says-very-few-clients-affected-idUSKCN1C01PB|access-date=6 December 2017|work=Reuters|issue=25 September 2017}}</ref> As of October 2017, the New York attorney general's office was investigating the hack.<ref name="WallCyber"/>

==Sponsorships==
Deloitte LLP has served as the official professional services sponsor of the [[United States Olympic Committee]] since 2009.<ref>{{cite web|url=http://www.teamusa.org/Media/News/USOC/Deloitte-renews-sponsorship-of-US-Olympic-and-Paralympic-Teams|archive-url=https://web.archive.org/web/20160304054138/http://www.teamusa.org/Media/News/USOC/Deloitte-renews-sponsorship-of-US-Olympic-and-Paralympic-Teams|url-status=dead|archive-date=4 March 2016|title= Deloitte renews sponsorship of U.S. Olympic and Paralympic Teams|publisher=[[United States Olympic Committee]]|access-date=27 October 2015}}</ref> The UK member firm of Deloitte was a sponsor of the [[2012 Summer Olympics]]<ref name=londonolympics>{{cite web|url=http://www.brandrepublic.com/News/771115/Deloitte-becomes-first-London-2012-tier-two-sponsor/|title=Deloitte becomes first London 2012 tier two sponsor|website=Brand Republic|access-date=9 November 2017}}</ref> and the [[Royal Opera House]].<ref>{{cite web|url=https://www.deloitte.com/view/en_GB/uk/about/deloitte-and-the-arts/centre-stage-deloitte-ignite-and-the-royal-opera-house-sponsorhip/index.htm|title=Deloitte Ignite|website=Deloitte.com|access-date=10 October 2017|archive-date=14 March 2012|archive-url=https://web.archive.org/web/20120314061144/http://www.deloitte.com/view/en_GB/uk/about/deloitte-and-the-arts/centre-stage-deloitte-ignite-and-the-royal-opera-house-sponsorhip/index.htm|url-status=dead}}</ref> The Canadian member firm was also the official professional services supplier for the 2010 [[2010 Winter Olympics|Vancouver Winter Olympic Games]]<ref>{{cite web|url=http://www.vancouver2010.com/en/-/32678/q0c15c/index.html|title=Vancouver 2010 Winter Olympics – results & video highlights|date=13 October 2016|website=Vancouver2010.com|access-date=16 November 2016|archive-date=13 October 2009|archive-url=https://web.archive.org/web/20091013115926/http://www.vancouver2010.com/en/-/32678/q0c15c/index.html|url-status=dead}}</ref> and [[2010 Winter Paralympic Games]].<ref>{{cite web|url=http://www.vancouver2010.com/en/news/news-releases/-/55752/32566/u6ncq5/vancouver-2010-enhances-team-w.html|title=Vancouver 2010 Winter Olympics – results & video highlights|date=13 October 2016|website=Vancouver2010.com|access-date=16 November 2016|archive-date=27 September 2008|archive-url=https://web.archive.org/web/20080927024002/http://www.vancouver2010.com/en/news/news-releases/-/55752/32566/u6ncq5/vancouver-2010-enhances-team-w.html|url-status=dead}}</ref>

In Asia, the Singapore member firm of Deloitte was a sponsor of the [[2010 Summer Youth Olympics]].<ref>{{cite web|url=http://www.agri-biz.com/Singlenews.aspx?DirID=107&rec_code=323043|title=Deloitte was official partner of inaugural YOG in 2010|website=Agri-biz.com|access-date=2 October 2014|archive-url=https://web.archive.org/web/20141006121353/http://www.agri-biz.com/Singlenews.aspx?DirID=107&rec_code=323043|archive-date=6 October 2014|url-status=dead}}</ref> The Australian member firm of Deloitte is a Founding Partner of [[Invictus Games]] Sydney 2018, and a Principal from the firm's consulting practice is CEO of the not-for-profit entity delivering the Games.<ref>{{Cite web|url=https://www.invictusgames2018.org/community-support/corporate-partners/|title=Invictus Games Sydney 2018 Corporate Partners|date=10 July 2018|website=Invictus Games Sydney 2018|archive-url=https://web.archive.org/web/20180710102033/https://www.invictusgames2018.org/community-support/corporate-partners/|archive-date=10 July 2018|url-status=usurped}}</ref><ref>{{Cite web|url=http://blog.deloitte.com.au/rain-couldnt-dampen-invictus-spirit/|title=Deloitte|date=10 July 2018|website=Deloitte|access-date=10 July 2018}}</ref>

Moreover, Deloitte sponsors many university sports teams and societies, such as the [[Edinburgh University Hockey Club]].<ref>{{cite web|url=http://www.euhc.co.uk/men/sponsors.php|title=Deloitte – Official Sponsor of EUMHC|website=Euhc.co.uk|access-date=2 October 2014|archive-url=https://web.archive.org/web/20120814143830/http://www.euhc.co.uk/men/sponsors.php|archive-date=14 August 2012|url-status=dead}}</ref> It also entered into a 3-year partnership with the [[Cambridge Union Society]] in November 2013.<ref>{{cite web |url=http://www.varsity.co.uk/news/6450 |author=Martha Elwell |date=14 November 2013 |title=The Union by Deloitte |work=Varsity Online |access-date=2 October 2014}}</ref> Deloitte has also delved into motorsport sponsorship, with the team currently acting as the title sponsor for the No. 37 [[TOM'S]] [[Toyota Supra]] team as TGR Team Deloitte TOM'S in the [[2023 Super GT Series|2023 Super GT series]].<ref>{{Cite web |title=TOM'S reveals striking new liveries for 2023 SUPER GT season|url=https://us.motorsport.com/supergt/news/toms-livery-2023-toyota-supra/10428952/|date=February 7, 2023|access-date=May 30, 2023|author=Jamie Klein|website=www.motorsport.com|publisher=[[Motorsport.com]]|language=en}}</ref><ref>{{Cite web |last=CORPORATION |first=TOYOTA MOTOR |title=TOYOTA GAZOO Racing Presents 2023 Race Team Setups {{!}} Corporate {{!}} Global Newsroom |url=https://global.toyota/en/newsroom/corporate/38320129.html |access-date=2023-06-11 |website=Toyota Motor Corporation Official Global Website |language=en}}</ref>

In May 2017, Deloitte entered into a partnership with [[McLaren Applied|McLaren Applied Technologies]] (MAT) to combine Deloitte's experience in delivering large consulting projects and MAT's experience of engineering, sensors, simulation and analytical analysis.<ref>{{Cite web |last=Medland |first=Dina |date=May 15, 2017 |title=Deloitte And McLaren Join Forces To Build Data-Driven Business Products |url=https://www.forbes.com/sites/dinamedland/2017/05/15/deloitte-and-mclaren-join-forces-to-build-data-driven-business-products/ |access-date=2023-06-11 |website=Forbes |language=en}}</ref> Prior to this, MAT had entered into a similar partnership with competitor KPMG in a ten-year deal in 2014 but it was terminated by KPMG in 2017.<ref>{{Cite web |last=Sweet |first=Pat |date=16 May 2017 |title=Deloitte takes pole position from KPMG for McLaren F1 technology |url=https://www.accountancydaily.co/deloitte-takes-pole-position-kpmg-mclaren-f1-technology |access-date=2023-06-11 |website=accountancydaily.co |language=en}}</ref><ref>{{Cite web |last=Kleinman |first=Mark |date=15 May 2017 |title=McLaren puts brakes on KPMG and revs up Deloitte partnership |url=https://news.sky.com/story/mclaren-puts-brakes-on-kpmg-and-revs-up-deloitte-partnership-10878675 |access-date=2023-06-11 |website=Sky News |language=en}}</ref> The partnership was later extended to MAT sister company [[McLaren|McLaren Racing]] in June 2020 where Deloitte will work with McLaren to enhance the performance of the team and its cars.<ref>{{Cite web |title=McLaren Racing continues collaboration with Deloitte |url=https://www.mclaren.com/racing/partners/deloitte/mclaren-racing-continues-collaboration-deloitte/ |access-date=2023-06-11 |website=mclaren.com |language=en-GB}}</ref> In May 2023, Deloitte and McLaren Racing signed a multi-year partnership extension.<ref>{{Cite web |last=Nambiar |first=Rahul |date=2023-05-25 |title=McLaren Racing announces partnership extension with Deloitte |url=https://sportsmintmedia.com/mclaren-racing-announces-partnership-extension-with-deloitte/ |access-date=2023-06-11 |website=SportsMint Media |language=en-US}}</ref>

In May 2022, Deloitte signed a three-year sponsorship deal worth more than USD300,000 with the [[Football Association of Singapore]] to be the first title sponsor of the [[Women's Premier League (Singapore)|Singapore Women’s Premier League]] as the Deloitte Women's Premier League.<ref>{{Cite news |last=Ganesan |first=Deepanraj |date=2022-05-04 |title=Football: Singapore's Women's Premier League launched, $300,000 title sponsorship with Deloitte |language=en |work=The Straits Times |url=https://www.straitstimes.com/sport/football/football-singapores-womens-premier-league-launched-300000-title-sponsorship-with-deloitte |access-date=2023-06-11 |issn=0585-3923}}</ref>

==See also==
{{Portal|New York City|Companies}}
* [[Accounting networks and associations]]
* [[Big Four accounting firms]]
* [[Deloitte Fast 500]]
* [[Deloitte Football Money League]]
* [[Deloitte Real Estate]]
* [[Financial audit]]
* [[Sarbanes–Oxley Act]]
* [[Tax advisor]]
* [[Venmyn Rand]]

==References==
{{Reflist}}

==Further reading==
* {{cite book|last=Foye|first=Arthur Bevins|title=Haskins & Sells: Our first seventy-five years |url=https://core.ac.uk/download/pdf/288070471.pdf|year=1970|publisher=Haskins and Sells Publications}}
* Richards, Archibald C. ''Touche Ross & Co 1899-1981'', London, 1981

==External links==
{{Commons category}}
* {{Official website}}

{{Big4}}
{{Consulting}}
{{Hacking in the 2010s|collapsed}}
{{Major information technology consulting and outsourcing companies}}
{{Authority control}}

[[Category:Deloitte| ]]
[[Category:1849 establishments in England]]
[[Category:Accounting firms of the United Kingdom]]
[[Category:Accounting firms of the United States]]
[[Category:Information technology consulting firms of the United States]]
[[Category:Consulting firms established in 1845]]
[[Category:Financial services companies established in 1845]]
[[Category:Companies based in London]]
[[Category:Companies based in Manhattan]]
[[Category:Companies based in New York (state)]]
[[Category:International management consulting firms]]
[[Category:Privately held companies of the United Kingdom]]
[[Category:Accounting firms]]
[[Category:Financial services companies of Canada]]
[[Category:International accounting firms]]