HMRC overcharged taxpayers £3.5 billion in income tax the latest data shows, with tax coding errors largely to blame.

Around 31% of adults have paid the incorrect amount of tax at some point - with the average overpayment worth £689, according ...

An incorrect code could mean you're entitled to a refund running into thousands of pounds ...

Martin Lewis has warned millions of UK employees they could lose thousands of pounds if they fail to check their tax code.