Question to the HM Treasury:

To ask the Chancellor of the Exchequer, what estimate she has made of the number of households who will have (a) Married Couple’s Allowance and (b) marriage allowance reduced as a result of freezing of income tax thresholds.

HMRC does not produce household-level analysis for either the Marriage Allowance or the Married Couple’s Allowance.

Data on the number of Marriage Allowance claimants up to 2022-23 can be found here:

Non-structural tax reliefs - GOV.UK

Published estimates of the number of Married Couple’s Allowance claimants up to 2024-25 can be found here:

Structural tax reliefs - GOV.UK