Audit Firm Specific Reports - Tier 1 Audit Firms
We publish individual reports on our audit quality inspections and supervision of each major audit firm.
Audit Firm Specific Reports 2023
A separate Overview report has been published on 6 July 2023 to accompany the seven audit firm specific reports.
| Name | Tier 1 Firms – Overview 2023 |
|---|---|
| Publication date | 6 July 2023 |
| Format | PDF, 1.3 MB |
The 2023 Audit Firm Specific Reports were published on 6 July 2023 (ordered alphabetically).
| Name | BDO LLP Audit Quality Inspection and Supervision Report 2023 |
|---|---|
| Publication date | 6 July 2023 |
| Format | PDF, 3.0 MB |
| Name | Deloitte LLP Audit Quality Inspection and Supervision Report 2023 |
| Publication date | 6 July 2023 |
| Format | PDF, 2.0 MB |
| Name | Ernst & Young LLP Audit Quality Inspection and Supervision Report 2023 |
| Publication date | 6 July 2023 |
| Format | PDF, 1.9 MB |
| Name | Grant Thornton UK LLP Audit Quality Inspection and Supervision Report 2023 |
| Publication date | 6 July 2023 |
| Format | PDF, 1.9 MB |
| Name | KPMG LLP Audit Quality Inspection and Supervision Report 2023 |
| Publication date | 6 July 2023 |
| Format | PDF, 1.8 MB |
| Name | Mazars LLP Audit Quality Inspection and Supervision Report 2023 |
| Publication date | 6 July 2023 |
| Format | PDF, 2.5 MB |
| Name | PricewaterhouseCoopers LLP Audit Quality Inspection and Supervision Report 2023 |
| Publication date | 6 July 2023 |
| Format | PDF, 2.5 MB |
Audit Firm Specific Reports archive
Archives of prior reports and reports for other firms are available in this section.
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| Name | Tier 1 Firms – Overview 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 2.5 MB |
| Name | Deloitte LLP Audit Quality Inspection and Supervision Report 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 3.0 MB |
| Name | Deloitte LLP Audit Quality Inspection and Supervision Report 2021 |
| Publication date | 23 July 2021 |
| Type | Report |
| Format | PDF, 1.8 MB |
| Name | Deloitte Audit Quality Inspection Report Jul 2020 |
| Publication date | 14 July 2020 |
| Type | Operating procedure |
| Format | PDF, 883.7 KB |
| Name | Deloitte Audit Quality Inspection 2018/19 |
| Publication date | 9 July 2019 |
| Format | PDF, 879.0 KB |
| Name | Deloitte LLP - Public report 2017/18 |
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 705.3 KB |
| Name | Audit Quality Inspection Report 2016/17 - Deloitte LLP |
| Publication date | 15 June 2017 |
| Type | Report |
| Format | PDF, 354.6 KB |
| Name | Audit Quality Inspection Report May 2016: Deloitte LLP |
| Publication date | 19 May 2016 |
| Type | Report |
| Format | PDF, 927.4 KB |
| Name | Audit Quality Inspection Report 2014/15: Deloitte LLP |
| Publication date | 29 May 2015 |
| Type | Report |
| Format | PDF, 428.6 KB |
| Name | Audit Quality Inspection Report May 2014: Deloitte LLP |
| Publication date | 17 April 2014 |
| Type | Report |
| Format | PDF, 399.9 KB |
| Name | Audit Quality Inspection Report: Deloitte LLP |
| Publication date | 31 May 2013 |
| Type | Report |
| Format | PDF, 409.2 KB |
| Name | Public Report on the 2011/12 inspection of Deloitte LLP |
| Publication date | 15 June 2012 |
| Type | Report |
| Format | PDF, 697.7 KB |
| Name | PricewaterhouseCoopers LLP Audit Quality Inspection and Supervision Report 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 3.0 MB |
| Name | PricewaterhouseCoopers LLP Audit Quality Inspection and Supervision Report 2021 |
| Publication date | 23 July 2021 |
| Type | Report |
| Format | PDF, 2.1 MB |
| Name | PwC Audit Quality Inspection Report Jul 2020 |
| Publication date | 14 July 2020 |
| Type | Scheme and regulation |
| Format | PDF, 846.9 KB |
| Name | PwC Audit Quality Inspection 2018/19 |
| Publication date | 9 July 2019 |
| Format | PDF, 554.2 KB |
| Name | PwC LLP - Public Report 2017/18 |
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 740.4 KB |
| Name | Audit Quality Inspection Report 2016/17 - PwC LLP |
| Publication date | 15 June 2017 |
| Type | Report |
| Format | PDF, 949.4 KB |
| Name | Audit Quality Inspection Report May 2016: PricewaterhouseCoopers LLP |
| Publication date | 19 May 2016 |
| Type | Report |
| Format | PDF, 947.7 KB |
| Name | Audit Quality Inspection Report 2014/15: PricewaterhouseCoopers LLP |
| Publication date | 29 May 2015 |
| Type | Report |
| Format | PDF, 388.8 KB |
| Name | Audit Quality Inspection Report May 2014: PricewaterhouseCoopers LLP |
| Publication date | 28 May 2014 |
| Type | Report |
| Format | PDF, 499.2 KB |
| Name | Audit Quality Inspection Report: PricewaterhouseCoopers LLP |
| Publication date | 31 May 2013 |
| Type | Report |
| Format | PDF, 440.1 KB |
| Name | Ernst & Young LLP Audit Quality Inspection and Supervision Report 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 1.1 MB |
| Name | Ernst & Young LLP Audit Quality Inspection and Supervision Report 2021 |
| Publication date | 23 July 2021 |
| Type | Report |
| Format | PDF, 2.0 MB |
| Name | EY Audit Quality Inspection Report Jul 2020 |
| Publication date | 14 July 2020 |
| Type | Scheme and regulation |
| Format | PDF, 867.9 KB |
| Name | EY Audit Quality Inspection 2018/19 |
| Publication date | 9 July 2019 |
| Format | PDF, 843.8 KB |
| Name | Ernst & Young LLP - Public Report 2017/18 |
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 696.1 KB |
| Name | Audit Quality Inspection Report 2016/17 - EY LLP |
| Publication date | 15 June 2017 |
| Type | Report |
| Format | PDF, 959.1 KB |
| Name | Audit Quality Inspection Report May 2016: Ernst & Young LLP |
| Publication date | 19 May 2016 |
| Type | Report |
| Format | PDF, 922.7 KB |
| Name | Audit Quality Inspection Report 2014/15: Ernst & Young LLP |
| Publication date | 29 May 2015 |
| Type | Report |
| Format | PDF, 449.9 KB |
| Name | Audit Quality Inspection Report May 2014: Ernst & Young LLP |
| Publication date | 28 May 2014 |
| Type | Report |
| Format | PDF, 419.5 KB |
| Name | Audit Quality Inspection Report: Ernst & Young LLP |
| Publication date | 31 May 2013 |
| Type | Report |
| Format | PDF, 332.5 KB |
| Name | Public Report on the 2011/12 inspection of Ernst & Young LLP |
| Publication date | 15 June 2012 |
| Type | Report |
| Format | PDF, 368.7 KB |
| Name | KPMG LLP Audit Quality Inspection and Supervision Report 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 2.9 MB |
| Name | KPMG LLP Audit Quality Inspection and Supervision Report 2021 |
| Publication date | 23 July 2021 |
| Type | Report |
| Format | PDF, 1.8 MB |
| Name | KPMG Audit Quality Inspection Report Jul 2020 |
| Publication date | 14 July 2020 |
| Type | Scheme and regulation |
| Format | PDF, 827.4 KB |
| Name | KPMG Audit Quality Inspection 2018/19 |
| Publication date | 9 July 2019 |
| Format | PDF, 929.3 KB |
| Name | KPMG LLP - Public Report 2017/18 |
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 741.5 KB |
| Name | Audit Quality Inspection Report 2016/17 - KPMG LLP |
| Publication date | 19 July 2017 |
| Type | Report |
| Format | PDF, 347.5 KB |
| Name | Audit Quality Inspection Report May 2016: KPMG LLP and KPMG Audit Plc |
| Publication date | 19 May 2016 |
| Type | Report |
| Format | PDF, 1.0 MB |
| Name | Audit Quality Inspection Report 2014/15: KPMG LLP and KPMG Audit Plc |
| Publication date | 29 May 2015 |
| Type | Report |
| Format | PDF, 320.7 KB |
| Name | Audit Quality Inspection Report May 2014: KPMG LLP and KPMG Audit Plc |
| Publication date | 28 May 2014 |
| Type | Report |
| Format | PDF, 493.9 KB |
| Name | Audit Quality Inspection Report: KPMG LLP and KPMG Audit Plc |
| Publication date | 31 May 2013 |
| Type | Report |
| Format | PDF, 362.7 KB |
| Name | Public Report on the 2011/12 inspection of KPMG LLP and KPMG Audit PLC |
| Publication date | 15 June 2012 |
| Type | Report |
| Format | PDF, 361.0 KB |
| Name | BDO LLP Audit Quality Inspection and Supervision Report 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 1.1 MB |
| Name | BDO LLP Audit Quality Inspection and Supervision Report 2021 |
| Publication date | 23 July 2021 |
| Type | Report |
| Format | PDF, 2.0 MB |
| Name | BDO Audit Quality Inspection Report Jul 2020 |
| Publication date | 14 July 2020 |
| Type | Operating procedure |
| Format | PDF, 718.1 KB |
| Name | BDO LLP Audit Quality Inspection 2018/19 |
| Publication date | 8 July 2019 |
| Format | PDF, 778.1 KB |
| Name | BDO LLP - Public Report 2017/18 |
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 646.7 KB |
| Name | Audit Quality Inspection Report 2016/17 - BDO LLP |
| Publication date | 15 June 2017 |
| Type | Report |
| Format | PDF, 933.7 KB |
| Name | Audit Quality Inspection Report May 2016: BDO LLP |
| Publication date | 19 May 2016 |
| Type | Report |
| Format | PDF, 980.0 KB |
| Name | Audit Quality Inspection Report 2014/15: BDO LLP |
| Publication date | 29 May 2015 |
| Type | Report |
| Format | PDF, 334.5 KB |
| Name | Audit Quality Inspection Report: BDO LLP |
| Publication date | 21 March 2013 |
| Type | Report |
| Format | PDF, 1.2 MB |
| Name | Grant Thornton UK LLP Audit Quality Inspection and Supervision Report 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 2.9 MB |
| Name | Grant Thornton UK LLP Audit Quality Inspection and Supervision Report 2021 |
| Publication date | 23 July 2021 |
| Type | Report |
| Format | PDF, 1.7 MB |
| Name | GT Audit Quality Inspection Report Jul 2020 |
| Publication date | 14 July 2020 |
| Type | Scheme and regulation |
| Format | PDF, 741.2 KB |
| Name | Grant Thornton UK LLP Audit Quality Inspection 2018/19 |
| Publication date | 9 July 2019 |
| Format | PDF, 494.8 KB |
| Name | Grant Thornton UK LLP - Public Report 2017/18 |
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 654.7 KB |
| Name | Audit Quality Inspection Report 2016/17 - Grant Thornton LLP |
| Publication date | 15 June 2017 |
| Type | Report |
| Format | PDF, 990.8 KB |
| Name | Audit Quality Inspection Report May 2016: Grant Thornton UK LLP |
| Publication date | 19 May 2016 |
| Type | Report |
| Format | PDF, 1004.5 KB |
| Name | Audit Quality Inspection Report February 2015: Grant Thornton LLP |
| Publication date | 18 February 2015 |
| Type | Report |
| Format | PDF, 334.1 KB |
| Name | Audit Quality Inspection Report: Grant Thornton UK LLP |
| Publication date | 21 March 2013 |
| Type | Report |
| Format | PDF, 345.0 KB |
| Name | Moore Stephens LLP - Public Report 2017/18 |
|---|---|
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 664.9 KB |
| Name | Audit Quality Inspection Report 2012/14 : Baker Tilly UK Audit LLP |
|---|---|
| Publication date | 17 April 2014 |
| Type | Report |
| Format | PDF, 869.8 KB |
| Name | Public Report on the 2010/12 inspection of Baker Tilly UK Audit LLP |
| Publication date | 10 May 2012 |
| Type | Report |
| Format | PDF, 461.2 KB |
| Name | Audit Quality Inspection Report February 2015: Crowe Clark Whitehill LLP |
|---|---|
| Publication date | 18 February 2015 |
| Type | Report |
| Format | PDF, 375.3 KB |
| Name | Public Report on the 2010/12 inspection of Crowe Clark Whitehill LLP |
| Publication date | 10 May 2012 |
| Type | Report |
| Format | PDF, 424.9 KB |
| Name | Mazars LLP Audit Quality Inspection and Supervision Report 2022 |
|---|---|
| Publication date | 20 July 2022 |
| Format | PDF, 1.0 MB |
| Name | Mazars LLP Audit Quality Inspection and Supervision Report 2021 |
| Publication date | 23 July 2021 |
| Type | Report |
| Format | PDF, 2.0 MB |
| Name | Mazars Audit Quality Inspection Report Jul 2020 |
| Publication date | 14 July 2020 |
| Type | Scheme and regulation |
| Format | PDF, 735.9 KB |
| Name | Mazars Audit Quality Inspection 2018/19 |
| Publication date | 9 July 2019 |
| Format | PDF, 795.4 KB |
| Name | Mazars LLP - Public Report 2017/18 |
| Publication date | 18 June 2018 |
| Type | Report |
| Format | PDF, 642.1 KB |
| Name | Audit Quality Inspection Report 2014/15: Mazars LLP |
| Publication date | 23 March 2015 |
| Type | Report |
| Format | PDF, 408.4 KB |
| Name | Public Report on the 2011/12 inspection of Mazars LLP |
| Publication date | 10 May 2012 |
| Type | Report |
| Format | PDF, 413.4 KB |
| Name | Public Report on the 2010/12 inspection of PKF (UK) LLP |
|---|---|
| Publication date | 10 May 2012 |
| Type | Report |
| Format | PDF, 319.1 KB |