HMRC has published accredited official statistics on the distribution of income and Income Tax liability across different percentile groups, with data spanning from tax year 1999-2000 through 2026-27. The dataset shows shares of total income before and after tax, along with corresponding tax liability for each percentile group. This statistical release provides insight into how Income Tax burden is distributed across the income distribution over more than two decades.
Source: HMRC (GOV.UK) – Read the original