Precis

Marriage Allowance Calculator

Transfer £1,260 of unused allowance to your spouse or civil partner and cut their tax bill by up to £252.

  • 2026/27 tax year
  • Instant results
  • Private: runs in your browser
  • Free, no sign-up
Tax saved this year
—
 

How does Marriage Allowance work?

If one partner earns less than the £12,570 Personal Allowance and the other is a basic-rate taxpayer, the lower earner can transfer £1,260 of their allowance. That cuts the higher earner's tax bill by 20% of £1,260, or £252. You can also claim for up to four previous tax years if you were eligible.

Work out the effect on the higher earner's pay with the Income Tax Calculator.

Frequently asked questions

How much is Marriage Allowance worth in 2026/27?

Up to £252 a year in reduced tax for the receiving partner.

Who can claim Marriage Allowance?

Married couples and civil partners where one earns under the Personal Allowance and the other is a basic-rate taxpayer. In Scotland the receiver must pay starter, basic or intermediate rate.

Can I backdate a Marriage Allowance claim?

Yes, you can usually claim for up to four previous tax years if you were eligible then; claim through gov.uk.

Related searches

Income Tax CalculatorBand-by-band income tax, England and Scotland. Take-Home PayUK income tax + National Insurance on your salary, broken down by band. Gift Aid CalculatorWhat your charity actually gets, and what you can reclaim.