IMPORTANT: Making Tax Digital (MTD) for Income Tax officially takes effect from the beginning of April 2026. If you are self-employed, a sole trader, or receive income from property, it’s likely that this will affect you. Today’s guide outlines key dates, the changes, who they affect, how complying with MTD will impact your business — and how Taxfile can help new and existing clients transition quickly and easily.
[Updated 1 February 2026]: If you missed the 31 January deadline to submit your self-assessment tax return, you are now into the penalty stage. HMRC applies an automatic £100 penalty to those who are anywhere from 1 day to 3 months late. Further penalties are then added if you take even longer to comply. It’s even worse if you haven’t paid the tax owed to HMRC by 31 January because you’ll then owe interest on that too. Here’s our professional advice of what to do if you’re late…
[As at 31 January 2026]: 31 January 2026 was THE FINAL DEADLINE by which you needed to file your Self Assessment tax return with HMRC…
[As at 30 January 2026]: There is only 1 day left to file your Self Assessment tax return and pay any tax due…
[As at 29 January 2026]: There are only 2 days left to file your Self Assessment tax return and pay any tax due…
[As at 28 January 2026]: There are only 3 days left to file your Self Assessment tax return and pay any tax due…
[As at 27 January 2026]: There are only 4 days left to file your Self Assessment tax return and pay any tax due…
[As at 26 January 2026]: There are only 5 days left to file your Self Assessment tax return and pay any tax due…
[As at 25 January 2026]: There are only 6 days left to file your Self Assessment tax return and pay any tax due…
[As at 24 January 2026]: There is only 1 week left to file your Self Assessment tax return and pay any tax due…