| 7 October 2026 | Deloitte LLP | Financial Reporting Council | Go-Ahead Group plc (FY2016 to FY2020 audits) | Fine | £11,000,000, reduced to £6,050,000 |
| 25 June 2025 | Deloitte Accountants B.V. | Public Company Accounting Oversight Board (PCAOB) | None (firm conduct, training test answer sharing) | Fine | $3 million civil money penalty |
| 10 April 2024 | Imelda & Rekan (Deloitte Indonesia) | Public Company Accounting Oversight Board (PCAOB) | None (firm conduct, training test answer sharing) | Fine | $1 million civil money penalty |
| 10 April 2024 | Navarro Amper & Co. (Deloitte Philippines) | Public Company Accounting Oversight Board (PCAOB) | None (firm conduct, training test answer sharing) | Fine | $1 million civil money penalty |
| 29 September 2022 | Deloitte Touche Tohmatsu Certified Public Accountants LLP | U.S. Securities and Exchange Commission | Component audits of U.S. issuers and audits of U.S. listed foreign companies (unnamed) | Fine | $20 million, with censure |
| 3 August 2022 | Deloitte & Touche (Kenya) | Capital Markets Authority of Kenya | Chase Bank Kenya Limited (in liquidation), 2015 medium term note issue | Fine | Sh10 million |
| 21 April 2022 | Deloitte LLP | Financial Reporting Council | Mitie Group plc (FY2016 audit) | Fine | £2 million, reduced to £1,450,000 |