HMRC overcharged taxpayers £3.5 billion in income tax the latest data shows, with tax coding errors largely to blame. Accountants say it is “essential” people check their tax codes to avoid being hit ...

Payslip tax codes may appear to be merely a jumbled collection of letters and numbers, but they're actually vital in establishing how much tax you're liable for on your earnings. Should they be wrong, ...

Millions of workers could be paying too much tax without realising it due to incorrect tax codes, with mistakes costing an estimated £3.5 billion in a single year.