The government has urged millions of UK workers to check their tax codes following a ‘costly mistake’ which could result in lower salaries.
Errors in relation to HMRC tax codes mean that some workers may have paid too much tax on their earnings. Experts have warned that some employees may have already received less than they’re entitled to as a result of the error.
Incorrect salary deductions could also reduce a worker’s disposable income, experts said, and therefore affect an individual’s ability to save or cover regular expenses.
Commenting on the matter, Adam Bennett, Digital Marketing Manager at Digital ID, said: ‘If your tax code results in too much tax being deducted, you might receive a smaller pay cheque and could struggle financially until you reclaim the excess tax.
‘A wrong tax code could [also] mean you're underpaying tax, leading to a surprise bill from HMRC later, possibly with interest and penalties.’
06/06/2024
View all >
02/12/2025
Chancellor raises £26 billion in Budget
Chancellor of the Exchequer Rachel Reeves set out tax-raising measures worth up to £26 billion in the Autumn Budget.
READ MORE
AI giving risky advice, warns Which?
AI tools including ChatGPT, Gemini and Meta AI are giving inaccurate, unclear and risky advice which could prove costly if followed, warns consumer champion Which?
Advisory fuel rates for company cars
New company car advisory fuel rates have been published and took effect from 1 December 2025.
Sign up to keep in touch to receive our latest news and industry updates.
* *
Yes, I would like to receive email updates providing me with the latest finance news, advice guides and details of future events.