Main Supply Estimates 2026 to 2027 29.4.2026 | Her Majesty's Revenue and Customs HM Treasury has published the central government main supply estimates for 2026 to 2027. The Main Supply Estimates (HC1855) have been presented to the House of Commons today (29 April 2026). The government seeks parliamentary authority for central government departmental expenditure for 2026-27, and for the voted element of spending plans originally set out at the Spending Review 2025 and updated at subsequent fiscal events such as the Budget 2025 . https://www.gov.uk/government/publications/main-supply-estimates-2026-to-2027