Millions of married couples and civil partners in the UK are eligible for the marriage allowance, but almost half of the UK’s eligible couples failed to claim it in 2016/17. The marriage allowance is designed for couples where one partner pays the basic rate of income tax and the other is a non-taxpayer.

The tax relief is worth up to £238 in 2018/19, but how do you go about claiming it? Read our guide here.