Marriage Allowance UK —
Save Up to £252 Per Year, Backdated 4 Years
Transfer up to £1,260 of unused personal allowance from a lower-earning spouse or civil partner to reduce the higher earner’s income tax bill. We handle the claim, backdate up to 4 years where eligible and ensure you receive every pound you’re owed — typically saving couples £252 per year.
Marriage Allowance — Are You Claiming?
Marriage Allowance allows one spouse or civil partner to transfer up to £1,260 of their unused personal allowance to the other — reducing the recipient’s income tax liability by up to £252 per year. It’s one of the simplest and most underused tax reliefs available to UK couples, with an estimated 2 million eligible couples still not claiming.
To qualify, one partner must have income below the personal allowance (£12,570 in 2024/25) and the other must be a basic rate taxpayer (income between £12,571 and £50,270). The lower-earning partner makes the transfer — reducing their personal allowance to £11,310 and increasing the other’s to £13,830, saving £252 in income tax.
Backdating is the key opportunity — claims can be backdated to the 2020/21 tax year (the earliest you can currently claim). If you’ve been eligible since 2020/21 but haven’t claimed, your backdated refund could be up to £1,008. Claims are made through HMRC online or your Self Assessment return, and refunds are typically processed within 5 working days.
The transfer continues automatically each year once claimed — you don’t need to reapply unless your circumstances change. We check Marriage Allowance eligibility for every client and claim it automatically where it applies.
✅ Eligibility Checklist
- ✓ Married or civil partners
- ✓ One partner income below £12,570
- ✓ Other partner is basic rate taxpayer
- ✓ Other partner income £12,571–£50,270
- ✓ Both partners UK residents
- ✗ Does NOT apply to unmarried couples
- ✗ Does NOT apply if either pays higher rate tax
- ✗ Does NOT apply if either pays Scottish income tax at intermediate rate or above
Marriage Allowance Savings — Year by Year
Marriage Allowance — Common Questions
Marriage Allowance is available to married couples and civil partners where one partner has income below the personal allowance (£12,570 in 2024/25) and the other is a basic rate taxpayer (income between £12,571 and £50,270 in England, Wales and Northern Ireland). It is not available to unmarried couples living together, to couples where either partner pays higher or additional rate income tax, or to couples where either partner is taxed under the Scottish income tax system at the intermediate rate or above.
The lower-earning partner makes the claim — either online via HMRC’s Marriage Allowance service (gov.uk) or via their Self Assessment tax return if they complete one. The claim is permanent until you cancel it or your circumstances change. If you complete a Self Assessment return, we include the Marriage Allowance transfer in your return automatically. For non-Self Assessment claimants, we make the online claim directly with HMRC on your behalf.
Marriage Allowance claims can currently be backdated to the 2020/21 tax year — providing all eligibility conditions were met in each year being claimed. The 4-year backdating window means the total potential backdated refund is up to £1,008 (4 × £252). The oldest tax year available for backdating changes each year on 5 April, so it’s important to claim promptly to preserve the maximum backdating window.
Yes — a non-working spouse with no income has a personal allowance of £12,570 that is entirely unused. Transferring £1,260 of this to a working basic-rate-taxpaying spouse saves £252 per year in income tax. This is one of the most common scenarios where Marriage Allowance applies and produces maximum benefit — the non-working spouse suffers no tax disadvantage from the transfer because they have no income to tax.
If your circumstances change — the higher-earning partner becomes a higher rate taxpayer, or the lower-earning partner’s income exceeds the personal allowance — you must cancel the Marriage Allowance election. Failure to cancel means HMRC will collect the incorrectly claimed allowance back through an adjustment to the following year’s tax code. We review Marriage Allowance eligibility annually for all clients and notify you immediately if your circumstances change.
£252/Year — Are You Claiming It?
Book a free consultation and we’ll check your eligibility immediately. If you qualify, we’ll make the claim and backdate up to 4 years — potentially a £1,008 refund within days.
Is This Service Right for You?
Stay-at-Home Parents & Carers
Non-working spouses with no income have a £12,570 personal allowance completely unused. Transferring £1,260 to a working basic-rate spouse saves £252/year — with up to £1,008 backdated. One of the easiest tax savings available.
Couples on Maternity or Paternity Leave
A spouse on unpaid or statutory maternity/paternity leave with income below the personal allowance can transfer Marriage Allowance — saving the working partner tax for the entire period of reduced income.
Students & Part-Time Workers
Students or part-time workers earning below the personal allowance can transfer Marriage Allowance to a basic-rate-taxpaying spouse or civil partner — reducing their partner’s tax bill by up to £252/year.
Couples Who Recently Became Eligible
Circumstances change — the non-working spouse may have recently reduced their hours or retired. We review Marriage Allowance eligibility for every client annually and identify newly eligible couples.
Fixed Fees — Agreed Upfront
All Britvex tax fees are fixed and agreed before we start. No hourly rates. Book a free consultation for your exact quote.
All packages include: HMRC agent · dedicated accountant · client portal · 2-hour response guarantee.
The Law That Applies to You
Income Tax Act 2007 (ITA 2007) s55A-s55B — Marriage Allowance was introduced by the Finance Act 2014 and is legislated in sections 55A-55B of ITA 2007. The legislation allows an individual whose income is below the personal allowance to elect to transfer 10% of the personal allowance (rounded up to the nearest £10) to a spouse or civil partner who is a basic rate taxpayer.
The transfer amount — the transferred amount is £1,260 in 2024/25 (10% of the £12,570 personal allowance, rounded to nearest £10). The transferee receives a tax reducer (credit) equal to 20% of the transferred amount — currently £252. The transfer reduces the transferor’s personal allowance to £11,310 and increases the transferee’s effective threshold.
Scottish income tax interaction — where either spouse is subject to Scottish income tax, the eligibility conditions are slightly different. The lower earner must have income below the Scottish personal allowance and the higher earner must not be a Scottish intermediate, higher or top rate taxpayer. We assess the Scottish income tax interaction for clients in Scotland.