Apply for Marriage Allowance

Calculate your Married Couple's Allowance 

You can use this calculator to work out if you qualify for Married Couple’s Allowance, and how much you might get. You need to be married or in a civil partnership to claim. 

Apply for Marriage Allowance 

Marriage Allowance (external link) lets you transfer £1,250 of your Personal Allowance to your husband, wife or civil partner.  

This can reduce their tax by up to £250 every tax year (6 April to 5 April the next year).  

To benefit as a couple, you need to earn less than your partner and have an income of £12,500 or less. Your partner’s income must be between £12,501 and £50,000 (£43,430 in Scotland) for you to be eligible. 

You can backdate your claim to include any tax year since 5 April 2015 that you were eligible for Marriage Allowance. If your partner has since died you can still claim - phone the Income Tax Helpline (external link)

Before you Apply  

You need your National Insurance number (external link) and your partner’s. 

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 (external link) to apply for Marriage Allowance.

You also need a way to prove your identity. This can be one of the following: 

  • the last 4 digits of the account that your child benefit, tax credits or pension is paid into 
  • the last 4 digits of an account that pays you interest 
  • details from your P60 (external link) 
  • details from any of your 3 most recent payslips 
  • your passport number and expiry date 

You’ll get an email confirming your application. 

Apply online   

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

Other ways to apply 

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

  • through Self Assessment if you're already registered and send tax returns 
  • by writing to HMRC