HMRC Issues Automatic £100 Fines to One Million UK Households for Late Tax Returns Wednesday, February 4, 2026 hmrc tax selfassessment fines penalties deadline uktax payers interest paymentplans HM Revenue and Customs (HMRC) has imposed automatic £100 fines on approximately one million UK households this week after they failed to meet the January 31 deadline for submitting their self-assessment tax returns. Each … Read More