A savvy fan of Martin Lewis has shared how they got £9,400 back from the tax man by doing a simple check.
The MoneySavingExpert reader had been on the wrong tax code for almost three years due to an error by her employer - meaning that she'd been overpaying by thousands of pounds.
"It took an hour on the phone to HMRC, but I've now been refunded £9,400," she told MoneySavingExpert.
