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💑 Marriage Allowance
Calculator
Transfer unused Personal Allowance to your partner and save up to £252/year.
Lower Earner's Income
£
Higher Earner's Income
£
Backdate years:
This year only
+ 1 year back
+ 2 years back
+ 3 years back
+ 4 years back (maximum)
Annual Saving
£252
Total with Backdate
£1,258
Who Qualifies?
You're married or in a civil partnership
One partner earns
under £12,570
The other is a
basic rate
taxpayer (under £50,270)
Transfers
£1,260
of unused allowance = saves
£252/year
💡 You can backdate claims up to 4 years — that's up to £1,258 in one lump sum!