questionText: To ask the Chancellor of the Exchequer, pursuant to the Answer of 5 February 2026 to Question 109630 on Council tax: Valuation, what the completion date is for the Council tax valuation operating system; and whether it will be used to assist the (a) council tax revaluation in Wales and (b) council tax surcharge in England.
answerText: The Valuation Operating System for Council Tax was launched in 2025 and supports all Council Tax work in England and Wales, including the High Value Council Tax Surcharge 
heading: Council Tax: Valuation