UK Inquiry Tracker

Large business tax compliance

Public Accounts Committee Open Inquiry

Opened: 12 Dec 2025 Parliament page

Taxes from the nation’s large businesses account for around 40% of the total tax revenue collected by HM Revenue & Customs, while representing less than 0.1% of UK business. HMRC’s large business directorate works with approximately 2,000 of these businesses (typically those with an annual turnover of more than £200m) … Read more Taxes from the nation’s large businesses account for around 40% of the total tax revenue collected by HM Revenue & Customs, while representing less than 0.1% of UK business. HMRC’s large business directorate works with approximately 2,000 of these businesses (typically those with an annual turnover of more than £200m) to make sure they pay the right tax. This more hands-on approach to these businesses is due to their size, complexity, and the amount of tax at stake. The Public Accounts Committee’s (PAC) 2016 report on corporate tax settlements called on HMRC to lead the way in pressing for changes in international tax rules to prevent aggressive avoidance by multinational companies. It further stated that the tax authority should consult widely on the case for changing rules that protect corporate taxpayer confidentiality, to make the tax affairs of multinational companies open to public scrutiny. These calls for greater public transparency were backed at the time by senior members of national parliaments in Europe. The National Audit Office in 2026 publishes its report examining whether HMRC’s approach to the taxing of large businesses is delivering value for money. Proceeding from the NAO’s findings, the PAC will take evidence from senior HMRC officials as it scrutinises the processes surrounding large business tax compliance. If you have evidence on these issues, please submit here by 23:59 on Monday 30 March 2026. Please look at the requirements for written evidence submissions and note that the Committee cannot accept material as evidence that is published elsewhere. The Committee decides what information to publish and how. You can request anonymity or confidentiality when you send evidence, but it is for the Committee to say whether it will agree.It may treat submissions confidentially, even where you have not requested this. Please note that the Committee’s inquiry cannot assist with individual cases. If you need help with an individual problem you are having, you may wish to read the information on Parliament’s website about who you can contact with different issues. Show less

1 Oral session

1 Event

Activity timeline 2 events

18 May
2026

Oral evidence

Oral evidence session

18 May
2026

Formal meeting (oral evidence session) · The Grimond Room, Portcullis House

Committee event

Oral evidence sessions 1 session

18 May 2026

View on parliament.uk

John-Paul Marks · HMRC John-Paul Marks · HMRC Jonathan Athow · HMRC Nicole Newbury · HMRC Penny Ciniewicz · HMRC