[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...

The post Missed the Tax Return Deadline? What Happens Now? appeared first on Taxfile.

[As at 31 January 2026]: Today, 31 January 2026, is THE FINAL DEADLINE by which you need to file your Self Assessment tax return with HMRC. If you miss the 11.59 pm deadline, you risk a £100 HMRC fine right away plus other significant penalties thereafter. Interest will also be charged from 1 February if tax is not paid by midnight on 31 January (rules apply).

Time is running out, so contact Taxfile for help with your tax return as soon as possible please. Book an appointment* with one of our helpful tax advisors and accountancy experts TODAY and we'll make filling in and submitting your tax return simple!

The post Today is the Tax Return Deadline! appeared first on Taxfile.

[As at 30 January 2026]: There is only 1 day left to file your Self Assessment tax return and pay any tax due...

The post 1 Day to the Self Assessment Tax Return Deadline! appeared first on Taxfile.

[As at 29 January 2026]: There are only 2 days left to file your Self Assessment tax return and pay any tax due...

The post 2 Days to the Self Assessment Tax Return Deadline! appeared first on Taxfile.

[As at 28 January 2026]: There are only 3 days left to file your Self Assessment tax return and pay any tax due...

The post 3 Days to the Self Assessment Tax Return Deadline! appeared first on Taxfile.

[As at 27 January 2026]: There are only 4 days left to file your Self Assessment tax return and pay any tax due...

The post 4 Days to the Self Assessment Tax Return Deadline! appeared first on Taxfile.

[As at 26 January 2026]: There are only 5 days left to file your Self Assessment tax return and pay any tax due...

The post 5 Days to the Self Assessment Tax Return Deadline! appeared first on Taxfile.

[As at 25 January 2026]: There are only 6 days left to file your Self Assessment tax return and pay any tax due...

The post 6 Days to the Self Assessment Tax Return Deadline! appeared first on Taxfile.

[As at 24 January 2026]: There is only 1 week left to file your Self Assessment tax return and pay any tax due...

The post 1 Week to the Self Assessment Tax Return Deadline! appeared first on Taxfile.

With the self-assessment tax return deadline almost upon us, we are opening our Tulse Hill office* this Sunday, 25 January 2026, from 10 am to 5 pm by appointment. That's in addition to Saturdays, which will remain open, by appointment, for the remainder of January (9 am-5 pm on 24 January) and, of course, weekdays opening hours as usual (see footer). A weekend appointment may be the perfect opportunity to discuss your tax return with us or bring in figures and records without having to disturb your working week. Weekend time slots are limited, though, so please book a free 20-minute appointment as soon as possible if you'd like to visit.

The post We’re Open on Sunday 25 January 2026 — Beat the Tax Return Deadline! appeared first on Taxfile.