Marriage Allowance: How Couples Can Save Tax in 2026/27

If one spouse or civil partner earns less than the standard Personal Allowance of £12,570, the couple may be able to use Marriage Allowance to reduce their combined Income Tax bill. The lower-earning partner can transfer £1,260 of their Personal Allowance to their husband, wife or civil partner, potentially reducing the recipient’s tax by up to £252 for the tax year. Marriage Allowance is designed for couples where one partner has little or no taxable income and the other is broadly a basic-rate taxpayer. It can also be backdated for earlier eligible years, which means couples who have not claimed before may be entitled to a tax repayment. This relief sits within the wider Income Tax and Personal Allowance rules explained in our ultimate guide to personal tax in the UK.

What Is Marriage Allowance?

Marriage Allowance allows one spouse or civil partner to transfer 10% of their standard Personal Allowance to the other partner. For the 2026/27 tax year:

• The standard Personal Allowance is £12,570.
• The transferable amount is £1,260.
• The maximum annual tax saving is £252.

The tax saving is calculated at the UK basic Income Tax rate of 20%: £1,260 × 20% = £252 The recipient does not receive £1,260 as a cash payment. Instead, their tax-free allowance is increased, which can reduce the amount of Income Tax they pay.

Who Can Claim Marriage Allowance?

You may be able to claim Marriage Allowance where all of the following conditions are met:

• You are married or in a registered civil partnership.
• One partner does not pay Income Tax or normally has income below £12,570.
• The other partner pays Income Tax at no more than the basic rate.
• Neither partner is claiming Married Couple’s Allowance.

Couples who live together but are not married or in a civil partnership cannot claim Marriage Allowance.

Marriage Allowance Income Limits for 2026/27

For most taxpayers in England, Wales and Northern Ireland, the receiving partner will usually need taxable income between £12,571 and £50,270 before the Marriage Allowance transfer is applied.

Partner	Typical 2026/27 position
Lower-earning partner	Income below the Personal Allowance, normally £12,570
Receiving partner in England, Wales or Northern Ireland	Usually income between £12,571 and £50,270
Receiving partner in Scotland	Usually income between £12,571 and £43,662

For Scottish taxpayers, the recipient must generally pay the starter, basic or intermediate Scottish rates. A partner paying the Scottish higher, advanced or top rate will not normally qualify to receive Marriage Allowance.

Save Tax with Marriage Allowance

To save tax with Marriage Allowance, the lower-earning partner transfers £1,260 of their Personal Allowance to the higher-earning partner. The lower earner’s allowance normally falls from £12,570 to £11,310, while the receiving partner gains an additional £1,260 of tax-free allowance.

Marriage Allowance Example

Priya earns £10,500 during 2026/27. Her spouse, Daniel, earns £32,000 and pays Income Tax at the basic rate.

• Priya transfers £1,260 of her Personal Allowance.
• Daniel’s taxable income is reduced by £1,260.
• At 20%, Daniel’s tax bill falls by £252.
• Priya remains below her reduced Personal Allowance of £11,310.

The couple therefore receives the full £252 Marriage Allowance tax saving.

When Marriage Allowance Tax Savings May Be Lower

The maximum saving is £252, but the couple’s actual benefit may be lower if the transferring partner earns more than £11,310. For example, if the lower earner has taxable income of £12,000, transferring the allowance reduces their Personal Allowance to £11,310. They may therefore pay Income Tax on £690 of income. The receiving partner could still save £252, but the couple’s net saving would be reduced by the additional tax payable by the lower-earning partner. Both partners’ full taxable income should therefore be reviewed before making a claim.

What Income Counts for Marriage Allowance?

Eligibility is not determined only by employment salary. Other sources of taxable income may affect whether the couple qualifies and whether transferring the allowance will produce a tax saving. Relevant income can include:

• Employment income
• Self-employment profits
• Pension income
• Rental income
• Taxable savings interest
• Dividend income
• Taxable state benefits

Tax-free income, such as interest earned within an Individual Savings Account, does not normally use the Personal Allowance. Where either partner has dividends, savings, rental income or several different sources of income, it is important to calculate the overall tax position before submitting an HMRC Marriage Allowance claim.

How to Claim Marriage Allowance

The lower-earning partner normally makes the application because they are the person transferring part of their Personal Allowance. The quickest way to claim is usually through the Marriage Allowance service on GOV.UK. The applicant will normally need:

• Their National Insurance number
• Their partner’s National Insurance number
• Identity verification information
• Details of their income where requested

If HMRC accepts the application, it will usually adjust the receiving partner’s PAYE tax code or account for the allowance through Self Assessment.

Claiming Marriage Allowance Through Self Assessment

A taxpayer who submits a Self Assessment tax return can make the claim through the Marriage Allowance section of the return. The transferring partner should complete the relevant section. The partner receiving the allowance should normally leave that section blank. Where both partners submit Self Assessment returns, HMRC recommends that the transferring partner files their return first.

Marriage Allowance Tax Codes

Where Marriage Allowance is processed through PAYE, the tax code will commonly include one of the following letters:

• N for the partner transferring part of their Personal Allowance
• M for the partner receiving the transferred allowance

Tax codes may include other adjustments, so an M or N code should still be checked against the taxpayer’s circumstances.

Can Marriage Allowance Be Backdated?

Marriage Allowance can normally be backdated for up to four previous tax years, provided the couple satisfied the eligibility conditions in each year claimed. During the 2026/27 tax year, eligible claims can currently be backdated to 6 April 2022. This means couples may be able to claim for:

• 2022/23
• 2023/24
• 2024/25
• 2025/26
• 2026/27

Where the full £252 saving is available in each eligible year, the total potential benefit across five tax years could be up to £1,260. The exact repayment will depend on the Personal Allowance, tax rates and both partners’ taxable income in each year.

How Backdated Marriage Allowance Tax Savings Are Paid

For earlier tax years, HMRC may issue the receiving partner with a tax repayment. For the current tax year, HMRC will often amend the recipient’s tax code so the benefit is provided through PAYE. Where either partner completes Self Assessment, Marriage Allowance may instead reduce the tax liability shown on the relevant tax return.

Does Marriage Allowance Renew Automatically?

Once an application has been accepted, the transfer generally continues automatically in future tax years until it is cancelled or the couple’s circumstances change. Couples should review their eligibility where:

• The lower earner’s income increases.
• The receiving partner becomes a higher-rate taxpayer.
• The couple permanently separates or divorces.
• One partner dies.
• Either partner loses entitlement to the Personal Allowance.

When Should Marriage Allowance Be Cancelled?

The allowance should normally be cancelled where the eligibility conditions are no longer met. Either partner may be able to cancel the arrangement, although the date on which the cancellation takes effect can depend on which partner makes the request and the reason the claim is ending. Continuing an ineligible claim can result in an incorrect tax code, an underpayment of Income Tax or an unexpected HMRC adjustment.

Marriage Allowance After Separation

A couple may remain eligible while temporarily living apart where the separation is not expected to become permanent. However, a permanent relationship breakdown may require the Marriage Allowance transfer to be cancelled. Couples who divorce or dissolve their civil partnership should notify HMRC so that future allowances and tax codes can be corrected.

Marriage Allowance After a Partner Dies

Special rules apply where one spouse or civil partner dies. A backdated claim may still be possible if the couple met the conditions during an earlier eligible year. The surviving partner or the person managing the deceased person’s tax affairs may need to contact HMRC directly to establish which years remain open for a claim.

Marriage Allowance for Pensioners

Receiving a pension does not prevent a person from claiming Marriage Allowance. Eligibility depends on the amount and type of taxable income received by each partner. A retired couple may qualify where one person receives little or no taxable pension income and the other remains within the relevant basic-rate tax band. State Pension, workplace pension income and private pension withdrawals should all be considered when reviewing eligibility.

Marriage Allowance for Self-Employed Couples

Self-employed individuals can claim Marriage Allowance, but eligibility is based on taxable profits rather than business turnover. A sole trader with turnover above £12,570 may still qualify as the lower earner if allowable business expenses reduce taxable profits below the Personal Allowance. Conversely, a business with relatively modest turnover may produce taxable profits high enough to affect the claim. Because final taxable profits may not be known until the business accounts are prepared, self-employed couples should review the transfer before submitting their tax returns.

Marriage Allowance and Dividend Income

Dividend income can affect Marriage Allowance eligibility even where some of the dividends fall within the Dividend Allowance. The interaction between dividends, the Personal Allowance and Income Tax bands can be more complex than a simple salary comparison. Company directors who receive a mixture of salary and dividends should calculate both partners’ full taxable income before making or continuing a claim. While Marriage Allowance itself is aimed at lower earners, this kind of household-level income planning is a small example of the value of tax planning for high net worth individuals with more complex income structures.

Marriage Allowance Versus Married Couple’s Allowance

Marriage Allowance and Married Couple’s Allowance are separate tax reliefs with different eligibility conditions.

Marriage Allowance	Married Couple’s Allowance
Usually applies where one partner has unused Personal Allowance	Generally available where one spouse or civil partner was born before 6 April 1935
Transfers £1,260 of Personal Allowance	Provides a separate Income Tax reduction
Maximum 2026/27 tax saving of £252	The amount depends on income and applicable limits

A couple cannot normally receive both allowances at the same time. Eligible older couples should compare the potential value of each relief before deciding which one to claim. Couples where one partner is an additional-rate taxpayer won’t qualify for Marriage Allowance at all, but may still find useful planning ideas in our guide on tax efficiency in London for additional rate earners.

Common HMRC Marriage Allowance Mistakes

• Assuming unmarried couples can claim
• Looking only at salary and ignoring dividends, pensions or rental income
• Claiming when the recipient is a higher-rate taxpayer
• Using the England, Wales and Northern Ireland threshold for a Scottish taxpayer
• Assuming every claim automatically saves the full £252
• Failing to cancel the transfer after income changes
• Confusing Marriage Allowance with Married Couple’s Allowance
• Paying a claims company unnecessarily when HMRC applications are free
• Missing eligible backdated tax years

Final Guidance on Claiming Marriage Allowance

Marriage Allowance can reduce a couple’s Income Tax bill by up to £252 each year where one spouse or civil partner has unused Personal Allowance and the other remains within the qualifying tax band. Couples should consider all sources of taxable income rather than looking only at employment earnings. They should also review whether the transfer remains beneficial whenever their income or personal circumstances change. Those who have not previously claimed should check whether they can backdate their application to 2022/23 and recover tax for earlier eligible years. Making the claim directly through HMRC is free, and accurate income calculations can help ensure the correct Marriage Allowance tax savings are received.

Marriage Allowance Case Study

Sarah and Tom, a married couple, visited our Wimbledon office after hearing they might be able to claim Marriage Allowance. Sarah worked part-time and earned less than the Personal Allowance, while Tom was a basic-rate taxpayer. They were unsure whether they qualified, whether they could backdate a claim and how the allowance would affect their tax position.

After reviewing both partners’ taxable income, we confirmed they met the Marriage Allowance eligibility rules for the 2026/27 tax year. We explained how Sarah could transfer £1,260 of her unused Personal Allowance to Tom, reducing his Income Tax liability by up to £252 for the year. We also reviewed their previous tax years and confirmed they were eligible to backdate their claim, allowing them to recover additional tax for earlier qualifying years. During the review, we checked that neither partner’s pension income, savings, dividends or other taxable income affected their eligibility and ensured they were not entitled to Married Couple’s Allowance instead.

Finally, we explained how HMRC would normally process the claim through updated PAYE tax codes and advised the couple to review their eligibility each year if their income or personal circumstances changed.

By the end of the consultation, Sarah and Tom understood how to claim Marriage Allowance, maximise their available tax savings and keep their HMRC records accurate.