Question to the HM Treasury:

To ask the Chancellor of the Exchequer, if she will make an estimate of the amount of corporation tax lost due to tax (a) evasion and (b) avoidance during the current financial year to date.

HM Revenue and Customs (HMRC) estimates the size of the tax gap, which is the difference between the amount of tax that should, in theory, be paid to HMRC, and what is actually paid. The tax gap statistics are published annually. The latest estimates are available at: Measuring tax gaps 2024 edition: tax gap estimates for 2022 to 2023 - GOV.UK (www.gov.uk).

In the tax year 2022 to 2023 the tax gap for Corporation Tax gap was 13.9% of the total theoretical Corporation Tax liability, or £13.7 billion in absolute terms. The amount of the Corporation Tax gap in 2022 to 2023 due to evasion is estimated to be around £2.9 billion, and due to avoidance, around £1.0 billion.