The gap between tax revenue the UK government expected to raise and the amount paid annually has hit £40bn, putting extra pressure on both main parties over their pledges to crack down on tax avoidance.
HM Revenue and Customs (HMRC) said there was a shortfall of £39.8bn in the 2022-23 financial year, up from £38.1bn a year earlier. This represents 4.8% of the amount of tax theoretically due, down from 5.2% in the previous financial year.