Civometry

National Insurance forecasts: record highs and lows

The extremes of national insurance 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”.

Highest published

£179.4bnYear ending March 2023

Lowest published

£96.6bnYear ending March 2009

The full series

National Insurance forecasts: Year ending March 2009 to Year ending March 2025LabourCoalitionCoalitionConservativeConservativeConservativeConservativeLabour0501001502010201520202025Year ending March 2009: £96.6bn £ billion · published 26 March 2026Year ending March 2010: £96.6bn £ billion · published 26 March 2026Year ending March 2011: £97.7bn £ billion · published 26 March 2026Year ending March 2012: £101.6bn £ billion · published 26 March 2026Year ending March 2013: £104.5bn £ billion · published 26 March 2026Year ending March 2014: £107.3bn £ billion · published 26 March 2026Year ending March 2015: £110.3bn £ billion · published 26 March 2026Year ending March 2016: £114.1bn £ billion · published 26 March 2026Year ending March 2017: £125.8bn £ billion · published 26 March 2026Year ending March 2018: £131.5bn £ billion · published 26 March 2026Year ending March 2019: £137.5bn £ billion · published 26 March 2026Year ending March 2020: £143.7bn £ billion · published 26 March 2026Year ending March 2021: £144.2bn £ billion · published 26 March 2026Year ending March 2022: £160.8bn £ billion · published 26 March 2026Year ending March 2023: £179.4bn £ billion · published 26 March 2026Year ending March 2024: £179.1bn £ billion · published 26 March 2026Year ending March 2025: £171.4bn £ billion · published 26 March 2026
Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

What a record here is, and is not

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.