Marriage Allowance in Retirement: The £252 Couples Miss

Frozen tax thresholds and a rising State Pension mean more retired people than ever are paying income tax — yet one of the simplest ways for married couples to claw a little of it back goes unclaimed by millions. Marriage Allowance is worth up to £252 a year, and up to £1,260 if you backdate it. Here is how it works, who qualifies, and the retired couples most likely to be missing out.

What is Marriage Allowance?

Marriage Allowance lets a lower-earning spouse or civil partner transfer £1,260 — 10% of the £12,570 personal allowance — to their partner. The partner receiving it gets a tax reduction of up to £252 for the year (20% of £1,260). It is not a payment or a benefit; it simply moves unused tax-free allowance from someone who cannot use all of it to someone who can.

Crucially, HMRC applies it as a flat tax credit. Whether the higher earner is just inside the basic-rate band or near the top of it, the saving is the same: £252 a year for 2026/27.

Why it matters more than ever in retirement

The personal allowance has been frozen at £12,570 since April 2021, and at the Autumn Budget 2025 the freeze was extended again — now running until April 2031. Meanwhile the State Pension keeps rising under the triple lock. For 2026/27 the full new State Pension is £241.30 a week, or £12,547.60 a year — just £22 below the personal allowance.

The result is "fiscal drag": each year, more retirees are pulled into paying tax on income that once fell within their allowance. For a married couple where one partner has income comfortably below £12,570 while the other is a basic-rate taxpayer, Marriage Allowance is one of the few remaining ways to trim the household tax bill without changing anything about how you invest.

Who qualifies

To claim for 2026/27 you must meet all of the following:

• You are married or in a civil partnership. Living together, however long, does not count.
• The partner giving up allowance is a non-taxpayer — total taxable income (State Pension, private pension, drawdown income, earnings and taxable savings interest) below £12,570.
• The partner receiving it is a basic-rate taxpayer. In England, Wales and Northern Ireland that means taxable income between £12,571 and £50,270. In Scotland the recipient must be a starter, basic or intermediate-rate taxpayer — taxable income no higher than £43,662, because Scotland's higher-rate band begins at £43,663.

If the higher earner pays 40% or 45% tax (or the Scottish higher, advanced or top rate), the claim is rejected. Note too that income drawn from an ISA does not count as taxable income, which is one reason the order you draw from your pots matters — a point we cover in the tax-free income stack.

A retired couple example

Suppose Margaret has a small State Pension and a modest private pension totalling £10,000 a year. Her husband John draws £28,000 a year from his flexi-access drawdown pot, making him a basic-rate taxpayer.

• Margaret transfers £1,260 of her allowance to John.
• John's tax bill falls by £252.
• Margaret still pays no tax — her income (£10,000) is below her reduced allowance of £11,310.

The couple is £252 a year better off, every year, for doing nothing more than filling in an online form. Coordinating whose name the taxable income sits in is a theme we explore further in how couples should coordinate pension drawdown.

One subtlety: if the partner giving up allowance has income between £11,310 and £12,570, transferring may leave them paying a small amount of tax — but the household usually still comes out ahead, because the £252 credit is worth more than the little extra they pay.

Backdating: worth up to £1,260

You can backdate a claim by up to four tax years, provided you were eligible in each. A claim made in 2026/27 can reach back to 2022/23. Because the personal allowance has been £12,570 throughout, each qualifying year is worth £252 — so the current year plus four backdated years can total up to £1,260, usually paid as a lump sum or through a tax-code adjustment.

Backdating can also apply after a bereavement: if your spouse or civil partner has died, you can still claim for earlier years in which you both qualified.

Don't confuse it with Married Couple's Allowance

Marriage Allowance is different from the older Married Couple's Allowance, which is available only where at least one partner was born before 6 April 1935 — so the youngest possible claimants are now in their nineties. That allowance is far more generous (for 2025/26 it ranged from £4,280 to £11,080, giving relief at 10%, worth £428 to £1,108 off the tax bill), but it is tapered once the higher earner's income exceeds £37,700. A couple can claim one or the other, not both. If either of you was born before that 1935 cut-off, it is worth checking which applies to you.

How to claim — and what to avoid

Applying is free. The lower-earning partner applies through GOV.UK (search "Marriage Allowance"), or by phone or post; HMRC then adjusts the tax codes. You do not need to reapply each year — the transfer renews automatically until you cancel it or your circumstances change, for example a divorce or the higher earner moving into the higher-rate band.

Be wary of companies advertising "marriage tax refunds" that offer to claim on your behalf for a fee, often keeping a large slice — sometimes half — of any rebate, and tying you into a deed of assignment. Because HMRC's own service is free and takes minutes, there is rarely any reason to use them.

Finally, tell HMRC promptly if things change. If the higher earner's income creeps above the basic-rate limit — easy to do as pensions escalate or drawdown income rises — the allowance can create an unexpected bill. Keeping an eye on your income also helps you sidestep other pitfalls, such as the 60% tax trap and knowing whether you need to complete self-assessment in retirement.

Marriage Allowance won't transform your retirement, but £252 a year — and up to £1,260 backdated — is worth having, especially with allowances frozen until 2031. If you are reviewing how your household draws its retirement income, try our retirement planner to see how your pensions, State Pension and savings fit together, and compare drawdown providers to make sure you are not overpaying in charges on the money that stays invested.