Entries by Mark

3 Days to the Self Assessment Tax Return Deadline!

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3 days to the self-assessment tax return deadline!

[As at 28 January 2026]: There are only 3 days left to file your Self Assessment tax return and pay any tax due by HMRC’s 31 January deadline. If you miss that deadline, you risk a £100 HMRC fine right away plus other significant penalties thereafter. 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 filing your tax return easy!

We’re Open on Sunday 25 January 2026 — Beat the Tax Return Deadline!

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Taxfile is open this Sunday 25 January 2026 as well as Mondays to Saturdays throughout the month.

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.

Saturday Appointments Available — Book Now for Tax Returns & More

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Saturday Appointments Available for a Limited Time - Book Now for Tax Returns Etc.

Taxfile is open on Saturdays until the end of January, by appointment, with this coming Saturday 24 January 2026 opening from 9 am to 5 pm. We’re also open on Sunday 25 January, from 10 am to 5 pm, by appointment. Weekend appointments might be useful if you need to see us for your 2024/25 tax return, or any other accountancy work, but can’t do it on a weekday. Weekend slots are limited, so please book in urgently if a weekend appointment suits you — before slots are all taken. Late appointments are also available on Mondays and Tuesdays, when we open until 6pm during January, or choose any other weekday if you can come earlier. Please see the footer of our website for latest opening times.

Book in on 0208 761 8000 or book your appointment online (here). We are happy to do virtual (video/phone) or physical appointments at our Tulse Hill office in Thurlow Park Road — whichever suits you best.

Information You Need to Supply for Professional Help with Your Tax Return

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Information You Need to Supply for Professional Help with Your Tax Return

[Updated November 2025]: If you’re self-employed in the UK and earn more than £1,000 after allowable deductions, you need to file a self-assessment tax return each year. It’s not only the self-employed, though. If you are on a higher income* or receive untaxed income from things like property rental, tips, commission, savings, investments, dividends, or foreign income, you also have to submit a return. Partners in business partnerships and those who made a capital gain resulting in Capital Gains Tax (CGT) also need to submit a return.

If you do have to fill in a self-assessment tax return, getting all the tax return fields filled in properly and the figures right can sometimes be difficult. That’s where professional help from companies like Taxfile is worth its weight in gold. But what information will your accountant or tax advisor need from you? In today’s guide, we’ll explain exactly what you’ll need to supply.

CIS Sub-contractors – Claim Your Tax Refund Now!

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CIS sub-contractor refunds - a service from Taxfile, Tulse Hill, South London

[Updated April 2025]: It’s now time to start the process of claiming your tax refund if you are a sub-contractor working within the Construction Industry Scheme (‘CIS’). Refunds are usually fast through Taxfile. What’s more, we’ve reduced our prices this year for CIS customers earning less than £40k (click here for details).

What you need to do

Don’t delay – book an appointment with Taxfile today or call 0208 761 8000 and we’ll sort it all out for you. We have staff who speak English, Polish, Pashto, Dari, Russian, Malayalam, and Dutch, should you need them on the day. Our Tulse Hill office is at 25 Thurlow Park Road, London SE21 8JP. Call 0208 761 8000 or book an appointment — the first 20 minutes is free! Alternatively, you can have a ‘virtual’ appointment with us on Zoom, Teams, Google Hangouts, Skype, FaceTime, WhatsApp or whatever you prefer.

We’re open from Monday to Saturday in April & May including early evenings on Mon/Tues

Our Tulse Hill office is open 6 days a week during April & May and offers Saturday morning appointments plus early evening appointments on Mondays and Tuesdays if standard office hours do not suit you (please see the footer of this website for details or simply call us).

Check List:

Missed the Tax Return Deadline? What Happens Now?

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Missed the Tax Return Deadline? What Happens Now?

[Updated February 2025]: 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.

Our Advice if You’re Late

If you are late submitting your tax return and/or paying the tax owed, our advice is to:

  1. submit your tax return without delay;
  2. pay as much tax as you can as soon as possible*.
    By doing both, you’ll minimise the penalty and interest payable to HMRC.

* Payment of any historic tax for 2023/24 and prior years is best dealt with by the last day of February at the latest. Any amount that remains due for 2023/24 is considered late thereafter and will attract an automatic HMRC charge of 5%.