Search Icon

Need a call back?

Simply fill out the form below and we'll call you.

Arrange a Chat

Give us a call!

Get in touch, we want to hear from you.

Northern Ireland +44(0) 28 9024 3131

Upload your CV

Be a part of our team at FPM, simply fill out the form below.

Upload CV
File Upload

Maximum file size: 67.11MB


Upload your CV

Be a part of our team at FPM, simply fill out the form below.

Upload CV Single Post
File Upload

Maximum file size: 67.11MB


26 October 2021

Tax Return Deadlines 2021/22


Q&A Session

I need to fill in a self-assessment tax return for the 2020-21 tax year. When is the deadline to file it? I thought it was January but a friend told me I had until 31 October. I am now confused when the deadline is. Can you explain when it is and what is the deadline for paying any tax owed?


The official self-assessment deadline for filing your tax return for the tax year ending 5th April 2021 (and for paying any money due) is midnight on Sunday 31st January 2022.

Key Dates for Filing Tax Returns

There are two key dates in October that you need to consider:

  • 31st October: if you want to file a paper tax return this is the deadline. However, most people find it is easier to register for self-assessment and file a tax return online. It’s worth noting that the government is phasing out paper returns altogether under its Making Tax Digital strategy, so keep an eye on the HMRC website for any updates.
  • 5th October: a date most people don’t know about, but if you have never completed or registered for a self-assessment form, this is the deadline for telling the taxman that you need to file one for the year to the previous April 5.

Submitting a Paper Tax Return

The October deadline for filing paper tax returns covering the 2020/21 tax year is fast approaching and taxpayers need to make sure they submit their returns by Sunday 31st October or risk late filing penalties. If you are submitting a paper tax return to HMRC for 2020/21 you should complete it and submit it to HMRC by Sunday 31st October 2021.

If you still have an outstanding return for 2019/20 which you wish to submit on paper, again you must do so before Sunday 31st October 2021 in order to avoid triggering further late filing penalties for the return being more than 12 months late.

Submitting an Electronic Tax Return

If you intend to submit a paper return for 2020/21 and do not do so by Sunday 31st October 2021 you still have the option of submitting an electronic return by Monday 31st January 2022 to avoid late filing penalties.

Late Filing Penalties

However, if a tax return for 2019/20 is submitted after Sunday 31st October 2021 in paper form rather than electronically then the maximum automatic late filing penalties of at least £1,600 (or £1,000 plus 10% of the tax due if greater) will eventually be charged.

You may have missed the tax return deadline due to an unforeseeable event. This would be classed as ‘reasonable excuse’ and grounds to appeal a penalty charge. If the appeal is successful then the penalties will be cancelled.

If you have not submitted your tax return because you are unable or cannot afford to pay any tax due, then be aware that HMRC regard submitting a return and paying the tax due as two separate and distinct obligations. Penalties will continue to build up if you do not submit the return and you will not be able to arrange a debt payment plan with HMRC while the return is outstanding.

HMRC has also reminded taxpayers recently that they will need to declare whether or not they have received any grants or payments from Government support schemes during the pandemic, with money from these taxable. These grants need to be recorded on the relevant tax return for 2020/21.

Here to Help



Share This on
The advice in this column is specific to the facts surrounding the questions posed.  Neither FPM nor the contributors accept any liability for any direct or indirect loss arising from any reliance placed on replies. 

Contact Feargal

Feargal McCormack / Managing Director

Newsletter Signup

Stay up to date with the lastest news from FPM.