UK Marriage Allowance 2026: How to Transfer 1,260 GBP Tax-Free
By the 3Tej Research Desk · Published May 23, 2026 · 3 min read
- Lower-earning spouse transfers 10% of their personal allowance (1,260 GBP) to the higher earner
- Saves the receiving spouse up to 252 GBP per year (20% of 1,260 GBP)
- Both spouses must be born after April 5, 1935
- Receiver must be a BASIC-rate (20%) taxpayer; not higher rate
- Can backdate up to 4 tax years; potential lump-sum recovery of ~1,200 GBP
UK Marriage Allowance is one of the easiest tax savings most eligible couples miss. If one spouse earns under the personal allowance threshold (12,570 GBP) and the other is a basic-rate taxpayer, the lower earner can transfer 1,260 GBP of unused allowance to the higher earner, saving up to 252 GBP per year. The application takes 10 minutes on the HMRC website and can be backdated 4 tax years for a potential lump-sum recovery of nearly 1,200 GBP.
Eligibility
- You and your spouse are married or in a civil partnership
- Both born after April 5, 1935 (older couples use Married Couple's Allowance instead)
- Lower-earning spouse's income is BELOW the personal allowance (12,570 GBP in 2026/27)
- Higher-earning spouse pays tax at the BASIC rate (20%, income 12,570 to 50,270 GBP)
- Higher earner CANNOT be a higher rate (40%) or additional rate (45%) taxpayer
If the higher earner moves into the higher-rate band mid-year, marriage allowance is withdrawn for that year.
How much it saves
The lower-earning spouse transfers 1,260 GBP of their unused personal allowance to the receiving spouse. The receiving spouse's personal allowance increases from 12,570 to 13,830 GBP, reducing their tax bill by 1,260 × 20% = 252 GBP.
| Income scenario | Without MA | With MA | Saving |
|---|---|---|---|
| Spouse A: 8,000 GBP, Spouse B: 28,000 GBP | Spouse B tax: 3,086 GBP | Spouse B tax: 2,834 GBP | 252 GBP/year |
| Spouse A: 11,000 GBP, Spouse B: 35,000 GBP | Spouse B tax: 4,486 GBP | Spouse B tax: 4,234 GBP | 252 GBP/year |
| Spouse A: 12,500 GBP, Spouse B: 49,000 GBP | Spouse B tax: 7,286 GBP | Spouse B tax: 7,034 GBP | 252 GBP/year |
Step-by-step application
- Lower-earning spouse creates a Government Gateway account at gov.uk/marriage-allowance (if not already done)
- Submit application online; takes about 10 minutes. HMRC asks for both NI numbers and income confirmation.
- HMRC processes within 2 to 6 weeks; updates the receiving spouse's tax code (1257L becomes 1383M).
- The 'M' suffix on the higher earner's tax code indicates they're receiving marriage allowance. The 'N' on the lower earner's code indicates they're giving it.
- Backdate: tick the box to claim for previous tax years. Up to 4 years can be backdated, paid as a single lump sum.
Application is FREE. Avoid scam sites that offer to do it for a fee; they're processing the same gov.uk form and charging 20 to 30% of the recovered amount.
Common mistakes
- Forgetting to cancel when income changes. If the lower earner's income rises above the personal allowance, marriage allowance becomes inefficient or invalid. Cancel via gov.uk to avoid clawback.
- Higher earner becomes higher-rate taxpayer. Salary rise to over 50,270 GBP automatically disqualifies marriage allowance. HMRC may reclaim the benefit for that tax year.
- Divorce or separation. Marriage allowance ends in the tax year of separation. Both spouses should notify HMRC.
- Higher earner dies. Allowance can be transferred for the year of death; surviving spouse retains the enhanced personal allowance until end of tax year.
Frequently asked questions
Who can claim UK Marriage Allowance in 2026?
Married or civil-partnered couples where (a) both were born after April 5, 1935, (b) the lower-earning spouse has income below the personal allowance (12,570 GBP), and (c) the higher-earning spouse pays tax at the basic 20% rate. Higher-rate and additional-rate taxpayers are NOT eligible.
How much can I save with Marriage Allowance?
Up to 252 GBP per tax year. Plus backdating up to 4 tax years can recover roughly 1,200 GBP as a lump sum on first application.
Can I backdate Marriage Allowance?
Yes, up to 4 tax years. On first application, tick the backdate box; HMRC will pay the cumulative amount as a single lump sum. The receiver gets the back-payments; the lower-earning spouse's tax code is adjusted forward.
What happens if my income changes?
If the lower earner's income exceeds the personal allowance or the higher earner enters the higher-rate band, marriage allowance is invalidated for that year. Cancel via gov.uk to avoid an unexpected tax bill.
Is Marriage Allowance the same as Married Couple's Allowance?
No. Marriage Allowance is for couples both born AFTER April 5, 1935. Married Couple's Allowance is for couples where at least one was born BEFORE that date (born before April 6, 1935) and is more generous. The two are mutually exclusive.
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