Marriage Allowance UK 2026: Claim Up to £252 Per Year (or £1,260 Backdated)

Chandraketu Tripathi

Finance Editor, Kaeltripton

Published 4 Apr 2026

Last reviewed 4 May 2026

✓ Fact-checked

By Chandraketu Tripathi | Updated April 2026

An estimated 2.4 million eligible UK couples are missing out on Marriage Allowance — a free £252/year tax saving that takes 5 minutes to claim. If you've never claimed and have been eligible for previous years, you could receive a backdated lump sum of up to £1,008 for the previous 4 years. This is one of the most straightforward tax reliefs available and one of the most consistently unclaimed.

Key Facts

Annual saving: up to £252/year | Backdated (4 years): up to £1,008 | Couples missing out: 2.4 million | Apply at: gov.uk/apply-marriage-allowance | Takes: 5 minutes online

Marriage Allowance: Who Qualifies UK 2026?

Source: GOV.UK, MoneySavingExpert. April 2026.
Requirement	Detail
Relationship status	Must be married or in a civil partnership — cohabiting couples do NOT qualify
Lower earner's income	Must be below £12,570 (doesn't use full personal allowance)
Higher earner's income (England/Wales/NI)	Must be between £12,571 and £50,270 (basic rate only)
Higher earner's income (Scotland)	Must be between £12,571 and £43,662
Tax rate of higher earner	Must pay basic rate (20%) only — NOT 40% higher rate
Residency	Both partners must be UK taxpayers
Civil partnership	✅ Yes — same rules as married couples

How Much Can You Claim? Worked Examples

Scenario	Annual Saving	4-Year Backdated Total
Partner earns £0 (not working), higher earner £35,000	£252/year	Up to £1,008
Partner earns £8,000, higher earner £28,000	£252/year	Up to £1,008
Partner earns £11,000, higher earner £45,000	£252/year	Up to £1,008
Partner earns £13,000 (over threshold)	Not eligible	N/A
Higher earner earns £55,000 (higher rate taxpayer)	Not eligible	N/A

How to Apply for Marriage Allowance in 5 Steps

Step 1: Check you both qualify using the criteria above
Step 2: The lower earner makes the claim — go to gov.uk/apply-marriage-allowance
Step 3: Sign in with Government Gateway (create an account if you don't have one)
Step 4: Enter both partners' National Insurance numbers and your marriage/civil partnership date
Step 5: Submit — HMRC will adjust the higher earner's tax code within 2–4 weeks

Backdating Your Marriage Allowance Claim

You can backdate Marriage Allowance claims for up to 4 tax years if you were eligible in those years. As of April 2026, you can claim back to 2022-23. Each backdated year is worth £252 (or slightly less for earlier years when the allowance was smaller). Backdated refunds are paid as a lump sum — either direct to your bank account or by cheque. To backdate, you must apply by post using form MATCF (downloadable from GOV.UK) rather than online. The backdated claim can be made alongside your current year online application.

⚠️ URGENT: The 2021-22 tax year fell out of scope on 5 April 2026. If you were eligible in 2021-22 and haven't claimed, that year's £252 is now permanently lost. Don't miss 2022-23 — it expires on 5 April 2027.

When Marriage Allowance Is Not Worth Claiming

Avoid claiming if: the lower earner has savings interest or other income that pushes them close to £12,570 (you'd be giving away allowance you need), or if the higher earner's income is borderline near the higher rate threshold — because reducing their taxable income by £1,260 brings them just within basic rate, only to push them out at year-end when HMRC reconciles. If in doubt, use HMRC's Marriage Allowance calculator before applying.

Frequently Asked Questions

What is Marriage Allowance UK?

Marriage Allowance lets the lower-earning partner transfer £1,260 of their unused Personal Allowance to their spouse or civil partner. This reduces the higher earner's tax bill by up to £252 per year. It is not a payment — it is a tax reduction applied through a change in tax code (the higher earner's code gets an 'M' suffix). Only available to married couples and civil partners — not cohabiting couples.

Who qualifies for Marriage Allowance UK 2026?

You qualify if: you are married or in a civil partnership (not just cohabiting), one partner's income is below £12,570 (they don't use their full personal allowance), and the other partner is a basic rate taxpayer (income between £12,571 and £50,270 in England/Wales/NI, or £12,571–£43,662 in Scotland). Both must be UK taxpayers. If either partner pays 40% tax, you do not qualify.

How much is Marriage Allowance worth UK 2026?

Marriage Allowance is worth up to £252 per year (20% of the £1,260 transferred allowance). You can also backdate claims for up to 4 previous tax years — potentially receiving a lump sum refund of up to £1,008 for 2022-23 to 2024-25, plus £252 for the current year. Act urgently: from 6 April 2026, you can no longer claim for 2021-22 — that deadline has passed.

How do I apply for Marriage Allowance UK?

Apply online at gov.uk/apply-marriage-allowance — it takes about 5 minutes. The lower-earning partner makes the claim using their Government Gateway account. You'll need both partners' NI numbers and the date of marriage or civil partnership. HMRC processes the claim within 2–4 weeks and adjusts the higher earner's tax code. For backdated years, apply by post using form MATCF.

Does Marriage Allowance apply to Scotland?

Yes — Marriage Allowance applies in Scotland. The lower earner still transfers £1,260 of their allowance. The higher earner must pay tax at the Scottish starter, basic, or intermediate rate (not the higher 42% rate). The Scottish higher rate threshold is £43,662 — lower than the £50,270 threshold in England and Wales. If the higher earner's income exceeds £43,662 in Scotland, they do not qualify.

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Disclaimer: Always verify with GOV.UK, HMRC, Acas, and NHS. Sources: gov.uk, acas.org.uk, theemploymentlawsolicitors.co.uk, moneysavingexpert.com, nhsbsa.nhs.uk, nhs.uk, raisin.com, puremagazine.co.uk. April 2026.