HMRC Overcharges 5.6 Million UK Households Due to Incorrect Tax Codes
A stark warning has been issued by HMRC following analysis that suggests approximately 5.6 million UK workers overpaid tax during the 2023–24 tax year. The total estimated overpayment amounts to a staggering £3.5 billion, primarily attributed to incorrect tax codes being applied to individuals' earnings.
Automated Systems Not Infallible
Lee Murphy, managing director at The Accountancy Partnership, highlighted a common misconception among taxpayers. “Many people assume that because tax is deducted automatically through PAYE, the amount must be correct,” he stated. “But tax codes are based on the information HMRC has about your circumstances, and if that information is outdated or incorrect, you could end up paying too much tax without realising it.”
Understanding Your Tax Code
Tax codes play a crucial role in determining how much tax-free income you are entitled to each year. For instance:
- The most common tax code is 1257L, which corresponds to the standard Personal Allowance of £12,570.
- Letters in the code indicate specific circumstances, such as 'L' for basic rate or 'BR' for a second job where no Personal Allowance applies.
- High earners between £100,000 and £125,140 face a 60% tax trap due to the gradual loss of their Personal Allowance.
Experts advise that ensuring your tax code accurately reflects your current situation—such as changes in employment, marital status, or additional income sources—is essential to avoid overpayment.
Proactive Measures Recommended
To prevent unnecessary tax overpayments, individuals are encouraged to:
- Regularly review their tax codes on payslips and P60 forms.
- Update HMRC promptly about any changes in personal or financial circumstances.
- Seek professional advice if discrepancies are suspected, as reclaiming overpaid tax can be a complex process.
This situation underscores the importance of vigilance in personal tax affairs, even in an era of automated systems, to ensure fair taxation and maximise earnings.
