Departments will be asked next week to reduce spending by 10% by 2028-29, says Cabinet Office source

The civil service will be told to slash more than £2bn a year from its budget by the end of the decade as part of the government’s spending review, with unions warning of significant job losses, the Guardian understands.

The Cabinet Office will tell departments to cut their administrative budgets by 15%, which is expected to save £2.2bn a year by 2029-30.