When Can I Submit My Tax Return 2025 Uk. This is when your online self assessment tax return for the previous tax year (6 april to 5 april) is due. Paper self assessment tax return to be submitted following the end of the tax year 2024/25:
This is a freeview ‘at a glance’ rolling calendar of common recurring tax deadlines, significant new tax measures and other tax significant events. Have already filed their tax return.