To ask the Chancellor of the Exchequer, with reference to paragraph 2.45 of the Spring Statement 2025, 26 March 2025, CP1298, what the monetary value is of the baseline spending on administrative budgets on which the 15% saving will be based; what the baseline spending on back-office functions is on which the £2.2 billion savings in 2029-30 will be based; and whether the £2.2 billion is a cumulative saving over the period.

The 15% saving on administration budgets will be made against the counterfactual assumption that these budgets would have remained flat in real terms over the period 2025-26 to 2029-30. The £2.2 billion represents the value of this 15% saving in the final year only rather than being a cumulative total.

Further details will be published as part of the Spending Review later this year.