Thousands of married couples and civil partners across the UK may be eligible to claim a significant tax break, potentially worth hundreds of pounds each year. The Marriage Tax Allowance permits one partner to transfer a portion of their unused personal allowance to their spouse, reducing the higher earner's tax liability. This initiative, designed to support families, could result in a saving of up to £252 per tax year.
The scheme is specifically targeted at couples where one partner earns below the current personal allowance, which stands at £12,570 for the 2024/25 tax year. This lower-earning partner can transfer £1,260 of their unused allowance to their spouse, provided the higher-earning partner is a basic rate taxpayer. This transfer effectively lowers the taxable income of the higher earner, leading to a direct reduction in their income tax bill.
Eligibility criteria dictate that both partners must be married or in a civil partnership, and one must be a non-taxpayer or earn below the personal allowance threshold. The other partner must be a basic rate taxpayer, meaning their income falls within the 20% income tax band. If one partner is a higher or additional rate taxpayer, the allowance cannot be claimed.
Crucially, claims for the Marriage Tax Allowance can be backdated for up to four previous tax years. This means that eligible couples who have not previously claimed could receive a substantial lump sum, potentially exceeding £1,200, in addition to future annual savings. The Government encourages eligible couples to check their entitlement and apply through the official channels.
Applying for the allowance is a straightforward process. Couples can submit their claim online via the Government's dedicated website or by contacting HM Revenue & Customs (HMRC) directly by phone. Once approved, the tax code of the higher-earning partner will be adjusted to reflect the allowance, and future tax bills will automatically be reduced. For backdated claims, a refund will typically be issued directly to the couple.