Millions of couples are missing out on £662 marriage tax perk – are YOU one of them?

IF you're married or in a civil partnership, you could be entitled to £662 of free money.

The marriage tax allowance is open to millions of couples across the UK, but many people have never heard of it and don't know what it is.

It's a government tax perk that was set up in April 2015 to "incentivise marriage”.

In year one it was worth £212, and for the following tax year it was worth £220.

For the 2017-18 tax year (which started on April 6), the allowance is £230 - but it's backdated, meaning you can claim previous years' allowances, which altogether gives you £662.

But more than half of eligible couples (around 2.4million duos) are missing out on the free cash.

The system allows couples to transfer a proportion of their personal allowance (the amount you can earn tax-free each tax year) between them.

It creates a potential saving of almost £1.4billion for people across the UK.

Who can claim the marriage tax allowance?

Most importantly, to qualify for the tax perk one of you must be a non-taxpayer - so, earning less than £11,500 a year - and the other must be a basic-rate taxpayer, so earning less than £45,000 a year.

You of course need to be married or in a civil partnership, so living together doesn't count, and you must have both been born on or after April 6, 1935.