27/07/2025
UK Tax Gap Reaches £46.8bn as Government Plans Stronger Compliance and Digital Reforms
The UK tax gap, the difference between what people and businesses are supposed to pay and what actually gets collected, was 5.3% (£46.8 billion) for 2023–24, according to new HMRC figures released on 19 June 2025. While HMRC collected an impressive £829.2 billion, small businesses made up the largest share of unpaid tax (60%), and corporation tax accounted for 40% of the gap. The main reasons behind this shortfall include mistakes, people not taking enough care with their taxes, and outright evasion.
To tackle this, the government plans to bring in an extra £7.5 billion by cracking down on non-compliance and modernising the tax system. Treasury minister James Murray MP stressed that every pound of uncollected tax puts a heavier burden on honest taxpayers and starves public services of vital funds. To strengthen enforcement, HMRC will receive £1.7 billion over four years to hire 5,500 compliance officers and 2,400 debt collection staff.
Technology will also play a big role in closing the gap. HMRC’s Making Tax Digital (MTD) programme, already reducing VAT errors, is expected to add £4 billion in extra tax revenue by 2030. MTD for Income Tax, launching in April 2026, is set to raise another £1.95 billion. Together with measures from the 2024 Autumn Budget and 2025 Spring Statement, these steps aim to ensure everyone pays their fair share.
Source: HMRC