The extremes of income tax forecasts as published by OBR, across the 17 periods held here (Year ending March 2009 to Year ending March 2025). Each record is a published figure, not a computed one, and the scope is this series — not “ever”.
The latest figure, £305.9bn in Year ending March 2025, is the highest in the whole published series of 17 periods. The rule: a period counts as beaten only when its figure is strictly below the latest, and the claim is only made when it reaches back at least five years.
Highest published
£305.9bnYear ending March 2025
Lowest published
£147.1bnYear ending March 2010
The full series
Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value
A record is the extreme of the periods this site holds for the current series, at each period’s newest published release. Earlier series measured under different methods are not compared against it. Money is in cash terms: a record set years ago stands against the money of its own year.