The UK Corporation Tax Calculator 2026/27 is a free, no-sign-up tool designed to help UK limited companies accurately calculate their tax liability. It handles the two-rate system, applying 19% for small profits and 25% for main rate profits, while automatically calculating marginal relief for earnings between £50,000 and £250,000. Beyond simple calculations, the tool includes a scenario planner for comparing profit levels, payment deadline trackers, and guidance on how associated companies impact your thresholds.
Launch Team / Built with
Launch Date:
October 2, 2026