Revised guidance and methodology, updated to support the publication of the Outturn and forecast tables: Spring Statement 2025 tables on 23 April 2025.

Updated Guidance and methodology: Benefit expenditure and caseload tables sections 'Social security spending in the United Kingdom and the welfare cap' and 'Social security spending in Great Britain'. Also, updated link to GDP Deflator.

Revised guidance and methodology, updated to support the publication of the 'Outturn and Forecast tables: Spring Budget 2024' tables on 22 April 2024.

2 separate guidance and methodology documents have been combined into a single guidance and methodology document. The latest 'Outturn and forecast tables' (for Autumn Budget 2023) have been published today (21 December 2023).

Revised guidance and methodology, updated to support the publication of the 'Outturn and forecast: Autumn Budget 2018' tables on 21 November 2018.

Added guidance about the methodology used in the benefit expenditure and caseload tables.

Revised guidance, updated to support the publication of the 'Outturn and forecast: Autumn Budget 2017' and 'Benefit expenditure by Parliamentary constituency, 2010/11 to 2016/17' tables, on 21 December 2017.

First published.