Marriage Allowance Rebate Calculator (2026/27)
Calculate your statutory 4-year backdated Marriage Allowance tax rebate. Check spouse transfer eligibility under Section 55A ITA 2007 and claim up to £1,258 in cash and tax savings directly from HMRC.
Marriage Allowance Backdated Rebate
Transfer £1,260 of tax-free Personal Allowance to your spouse or civil partner. Claim for the current 2026/27 tax year plus up to 4 backdated years for a lump sum rebate of up to £1,260.
1. Marital & Statutory Qualifications
2. Partner Annual Incomes
Must earn £12,570 or less (or pay no income tax). Ideal if non-working, part-time, or retired on State Pension.
Must be a basic-rate taxpayer (£12,571 to £50,270). Cannot be higher or additional rate.
3. Tax Years Included in Claim
Under Section 43 Taxes Management Act 1970, statutory claims can be backdated up to 4 previous tax years from the current tax year. Toggle any year you were not yet married or ineligible.
Your HMRC Marriage Rebate
Commercial claims management companies (CMCs) aggressively advertise Marriage Allowance rebates on social media. They charge between 36% and 48% plus VAT of your rebate.
Claiming directly through HMRC's online Government Gateway is 100% free and takes under 5 minutes.
Official GOV.UK Marriage Allowance portal • Zero commission or processing fees
How to Claim Your Marriage Allowance Rebate Free
Follow these statutory steps to ensure HMRC credits your bank account with the backdated lump sum.
Transferor Applies
The lower-earning partner (Partner 1) must be the person to submit the application via HMRC Government Gateway.
Gather Details
You will need both partners' National Insurance numbers and a valid form of UK identity (UK passport or driving licence).
Select Backdating
When prompted by HMRC, check the box to backdate your claim for all eligible previous years (2022/23 to 2025/26).
Receive Rebate
HMRC pays backdated years by direct bank transfer (BACS) or cheque within 2–4 weeks. Future years renew automatically.
How Marriage Allowance Works under Section 55A of ITA 2007
Marriage Allowance is a statutory UK tax relief introduced in the Finance Act 2014 and codified in Chapter 3A of Part 3 of the Income Tax Act 2007 (Sections 55A to 55E). It allows an individual who has an income below the personal tax threshold to transfer exactly 10% of the standard Personal Allowance to their spouse or civil partner.
For the 2026/27 tax year, the UK Personal Allowance remains frozen at £12,570 under the provisions of the Autumn Statement and subsequent Finance Acts. Exactly 10% of this allowance—rounded up under statutory convention to £1,260—is transferred. The receiving partner receives a tax reduction equal to the basic rate of income tax (20%) on the transferred amount, generating an immediate annual saving of £252.
The 4-Year Backdating Schedule & Statutory Deadlines
Under Section 55C(1)(b) of the Income Tax Act 2007 and Schedule 1AB of the Taxes Management Act 1970 (TMA 1970), taxpayers have the legal right to claim overpayment relief for the previous 4 closed tax years. If you have been married or in a civil partnership throughout this period and meet the eligibility criteria, you can claim a lump-sum rebate for past years alongside your ongoing tax relief.
| Tax Year | Allowance Transferred | Maximum Tax Saving | Statutory Claim Deadline | Payout Method |
|---|---|---|---|---|
| 2026/27 (Current Year) | £1,260 | £252 | 5 April 2031 | PAYE Tax Code Adjustment |
| 2025/26 (Prior Year 1) | £1,260 | £252 | 5 April 2030 | Direct BACS / Cheque |
| 2024/25 (Prior Year 2) | £1,260 | £252 | 5 April 2029 | Direct BACS / Cheque |
| 2023/24 (Prior Year 3) | £1,260 | £252 | 5 April 2028 | Direct BACS / Cheque |
| 2022/23 (Urgent Prior Year 4) | £1,260 | £252 | 5 April 2027 (Urgent) | Direct BACS / Cheque |
| Total Maximum 5-Year Benefit (4 Backdated + Current) | £1,260 (£1,008 Cash Rebate + £252 Tax Code Saving) | |||
Critical 5 April 2027 Deadline: Under Section 55C ITA 2007, you have exactly 4 years from the conclusion of a tax year to lodge an overpayment relief claim. Claims for the 2022/23 tax year will expire permanently on 5 April 2027. Missing this statutory deadline means forfeiting £252 in tax relief.
Eligibility Conditions: Rest of UK vs Scottish Devolved Brackets
To qualify for Marriage Allowance under Section 55A ITA 2007, both partners must satisfy strict statutory conditions relating to marital status, age, and taxable earnings.
- The transferring spouse must earn less than the Personal Allowance (£12,570).
- The receiving spouse must be a basic rate taxpayer earning between £12,571 and £50,270.
- If the receiving spouse earns over £50,270, paying 40% Higher Rate or 45% Additional Rate tax, the couple is strictly disqualified.
- Under the Scotland Act 2016, Scottish taxpayers face distinct devolved tax bands.
- The recipient spouse must pay tax at the Starter Rate (19%), Basic Rate (20%), or Intermediate Rate (21%).
- The upper ceiling is £43,662 for 2026/27. Any income above £43,662 enters the Scottish Higher Rate (42%), disqualifying the claim.
Deciphering the 'M' and 'N' Suffix PAYE Tax Codes
When HMRC processes your Marriage Allowance application, both partners receive updated PAYE coding notices (form P2). The standard UK tax code is 1257L, which represents £12,570 of tax-free personal allowance.
The recipient spouse's code is amended to 1383M. The letter Msignifies that they are receiving 10% of their partner's personal allowance. Their tax-free threshold increases from £12,570 to £13,830, reducing monthly PAYE deductions by £21.00 (£252 annually).
The lower-earning partner's code changes to 1131N. The letter N indicates they have elected to transfer £1,260 of their personal allowance to their spouse. Their personal tax-free allowance is reduced to £11,310.
How to Claim 100% Free via HMRC & Avoid Fee-Charging Firms
Applying for Marriage Allowance through HM Revenue & Customs is completely free and takes less than 10 minutes on GOV.UK. The lower-earning partner must submit the application (not the higher earner), using their Government Gateway ID.
Many commercial tax refund companies advertise on search engines and social media claiming to unlock "unclaimed marriage cash". These commercial firms often require you to sign a deed of assignment and deduct 35% to 48% plus VAT as an administrative fee, stripping £400 to £600 from your rebate.
Always claim directly through GOV.UK/marriage-allowance. When you claim directly through HMRC, 100% of the backdated rebate is paid directly into your bank account via BACS or mailed as an official HMRC payable order cheque.
Marriage Allowance Rebate FAQs (2026/27)
Statutory questions and answers on spouse allowance transfers, 4-year backdating deadlines, and HMRC tax code adjustments.
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Compare both partners
Marriage Allowance transfers part of one partner allowance; the donor can pay more tax and the recipient credit is limited by their eligible liability.
The maximum advertised saving is not a guaranteed household gain. Check tax rates, marriage/civil-partnership status, each claim year and the claim deadline through HMRC.
Check the rules for your circumstances
Official guidance supports the rules described here; it does not approve or certify this calculator. Confirm dates, eligibility and unsupported cases before making a financial decision.