UK's HMRC warns workers to check their tax codes due to potential salary reduction errors.

The UK's HM Revenue and Customs (HMRC) warns workers to check their tax codes as a "costly mistake" may have reduced their salaries. Errors in tax codes, based on employer and pension provider information, could lead to workers receiving less pay than they're entitled to. Workplace expert Adam Bennett from Digital ID advises individuals to promptly review their tax codes to avoid potential financial struggles.