2026: the year the taxman counts every quarter

12 Jan 2026

Lucy Mangan, partner and head of tax at Menzies, looks at the major changes coming down the track as the major overhaul of income tax reporting and shift to in-year reporting under Making Tax Digital signals a new world for taxpayers with multiple income streams

For business owners, investors and high-earning individuals, 2026 will represent a decisive shift in how the UK tax system operates. After years of incremental reform, successive Budgets have produced a framework that is more digital, more data-driven and considerably more demanding.

November’s Budget reinforced a consistent message from HMRC: reporting will be more frequent, and personal tax affairs will increasingly be monitored and updated during the year rather than addressed after it ends.

While attention often focuses on headline rates and allowances, the real impact lies beneath the surface.