In November, HM Revenue and Customs randomly associated someone else’s job to my national insurance (NI) number. HMRC is now taxing me as if I have two jobs, earning twice as much as I do, and adding on a tax adjustment for the tax it thinks I didn’t pay last year. It’s costing me about £450 a month in extra tax and NI contributions. BH Chorley, LancashireYour plight seems unnervingly similar to the case of a reader who was deemed dead by HMRC after it mistakenly gave her the NI number of a since-deceased stranger. I asked if, since you could view the other woman’s employment details, it had declared a data breach to the Information Commissioner’s Office.

Source: The Guardian February 03, 2026 22:40 UTC