HMRC Warns UK Taxpayers: Self Assessment Deadline Nears Fast Wednesday, December 17, 2025 hmrc selfassessment taxdeadline taxreturn penalties taxes2026 taxcompliance uniquetaxpayerreference taxpayment uktax HM Revenue and Customs (HMRC) has issued a crucial reminder to millions of UK taxpayers that the deadline for filing and paying their Self Assessment tax returns is swiftly approaching. All individuals required to submit an … Read More