Originally Posted by
YourMoney
But as the Marriage Allowance can be backdated up to four tax years (all the way to 2015/16), this means eligible couples can also make the following claims, totalling up to £1,150:
2018/19 tax year: the current personal allowance is £11,850, meaning £1,185 can be transferred to the partner, resulting in a £237 tax break. However, HMRC rounds the figure up to £1,190, meaning the recipient gets £238.
2017/18 tax year: the personal allowance was £11,500 so £1,150 was transfer
able, resulting in a £230 tax break.
2016/17 tax year: the personal allowance was £11,000 so £1,100 was transferable, resulting in a £220 tax break.
2015/16 tax year: the personal allowance was £10,600 so £1,060 was transferable, resulting in a £212 tax break.