Marriage Allowance Calculator
See how much tax you and your partner could save
Check UK Marriage Allowance eligibility and estimate your annual Income Tax saving for the 2026/27 tax year.
Gross annual income before tax for the first partner.
Common Partner A incomes:
Gross annual income before tax for the second partner.
Common Partner B incomes:
Eligibility preview
Eligible
Estimated annual saving
£252.00
Your estimated Marriage Allowance result
Partner A can transfer unused Personal Allowance to Partner B, reducing Income Tax at the basic rate.
Estimate based on the incomes entered and standard Marriage Allowance rules. HMRC eligibility checks can still change the outcome.
Breakdown
Partner incomes
Allowance transfer
Eligibility rules
Key Thresholds
£12,570
Lower earner limit
£50,270
Basic rate limit
£252
Max saving
About the Marriage Allowance Calculator
Use this Marriage Allowance calculator to check whether you may qualify and estimate how much tax you and your partner could save in the 2026/27 tax year.
Enter both partners' annual incomes to see if Marriage Allowance is available, who should transfer allowance to whom, and how much Income Tax you could save as a couple.
Marriage Allowance is designed for couples where one partner earns below the Personal Allowance and the other pays tax at the basic rate. The transferable amount is £1,260, which can reduce tax by up to £252 a year.
This calculator provides an estimate for married couples and civil partners in England, Wales and Northern Ireland. It does not cover every HMRC eligibility rule, such as residency or date of birth conditions.
For official guidance on eligibility and how to claim, see GOV.UK Marriage Allowance.
How much can Marriage Allowance save?
For 2026/27, the lower earner can transfer £1,260 of unused Personal Allowance. Taxed at the 20% basic rate, that can reduce Income Tax by up to £252 a year, or about £21 a month.