How it works
You might be eligible for this if:
If you’re eligible, married couples and civil partners, but not unmarried couples, can transfer 10% of their Personal Allowance (£1,250 in 2020/21) to their partner. This means the partner who earns more will get £1,250 added to their Personal Allowance (the amount you can earn before having to pay tax on your income). 20% of this allowance is given as a reduction in your tax bill (unlike the Personal Allowance which is deducted from your taxable income before tax is worked out).
How to apply for Marriage Allowance
You can apply online at HMRC. All you need are your National Insurance numbers and identification.
You can also apply by phone on 0300 200 3300*.
*Lines are open Monday to Friday: 8am to 8pm, Saturday: 8am to 4pm, Sunday: 9am to 5pm. There may be call charges. See GOV.uk for details.