Apply for Marriage Allowance online

Marriage Allowance lets you transfer £1,260 of your Personal Allowance to your husband, wife or civil partner. It’s free to apply for Marriage Allowance.

This can reduce their tax by up to £252 every tax year (6 April to 5 April the next year).

You can apply for Marriage Allowance if all the following apply:

  • you’re married or in a civil partnership
  • you do not pay Income Tax or your income is below your Personal Allowance (usually £12,570)
  • your partner pays Income Tax at the basic rate, which usually means their income is between £12,571 and £50,270 before they receive Marriage Allowance

You can read more about how to apply and what happens next.

You can backdate your claim to include any tax year since 5 April 2020 that you were eligible for Marriage Allowance. If your partner has since died you can still claim - phone the Income Tax helpline.

If at least one of you was born before 6 April 1935, you might pay less tax as a couple by applying for the Married Couple’s Allowance instead of Marriage Allowance.

This service is also available in Welsh (Cymraeg).

Before you apply

To use this service, you’ll need your National Insurance number and your partner’s National Insurance number.

If you have come to the UK and you do not plan to work or study, you cannot get a National Insurance number. Phone the Income Tax helpline to apply for Marriage Allowance.

You’ll need to sign in to use this service. If you do not already have sign in details, you’ll be able to create them.

You’ll be told when you sign in if you need to prove your identity. This is to keep your details safe and usually involves using photo ID like a passport or driving licence.

Apply online

The quickest way to apply for Marriage Allowance is online. You’ll get an email confirming your application within 24 hours.

Start now

Other ways to apply

If you cannot apply online, you can apply for Marriage Allowance:

Related content