The Isle of Man Treasury issued a reminder on employer and contractor tax returns for the tax year ended 5 April 2026, which must be submitted by the statutory due date of 5 May 2026. Returns submitted on or after 6 May 2026 will incur a late-filing penalty of GBP 250. Where a return remains outstanding, a further penalty of GBP 50 per day may be charged for each day after the GBP 250 penalty is applied. The Treasury noted that paying penalties does not remove the obligation to submit the return and that employers or contractors may be prosecuted for failing to do so. It also reminded employers with fewer than five employees who are not registered for online services that they can still register and submit their return online.
The Treasury (Isle of Man) 2026-04-21
Isle of Man Treasury warns employers and contractors of penalties for tax returns filed after 5 May 2026
The Treasury (Isle of Man) reminded employers and contractors that tax returns for the year ended 5 April 2026 must be submitted by the statutory due date, with late filings incurring an initial GBP 250 penalty and an additional GBP 50 per day thereafter while outstanding. It stressed that penalties do not remove the obligation to file and that non-compliance may lead to prosecution, and noted that smaller employers not yet registered for online services can still register and file online.