Last reviewed: April 2022

A lot of couples in the UK aren’t getting the most from their Marriage Tax Allowance. Are you one of them? A wrinkle in the tax rules means that, if they’re eligible, married couples can save £252 in tax each year. If you missed the boat on this in previous years, you can even backdate your Marriage Allowance claim so you don't lose out! Let’s take a look at what the Marriage Allowance system’s all about.