Just 8% of eligible couples are taking advantage of this tax break

It was one of the Conservative’s flagship tax policies and could be worth over £200 to any married couples that are eligible. But an official report has found that just 8 per cent of qualifying couples are claiming the marriage tax break.
The marriage tax allowance gives a married person the ability to transfer £1,060 of their tax-free personal allowance to a spouse or civil partner. If they made use of the full allowance, it means that a couple would receive an extra £212 each year in take home pay.
A report from the Office for Budget Responsibility found that of the 4.2 million people that are eligible for the tax break, only 504,000 have taken advantage of it.