Self Assessment Tax Returns
Our Self Assessment knowledge hub has been designed to help you have a better understanding about what a tax return is and how we can help you file yours accurately and on time.
The UK has one of the largest tax systems in the world, so preparing even the most straightforward tax return can be complicated. There are various deadlines and responsibilities for taxpayers to be aware of and as many reasons why you may need to file a tax return.
What’s more staff at HM Revenue and Customs are not tasked to advise you on how to organise your affairs and minimise your tax. Therefore, if you want to make sure you are paying the right amount of tax, you should consult a professional.
Our Self Assessment knowledge hub has been designed to help you have a better understanding about what a tax return is and how we can help you file yours accurately and on time.

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Key tax dates you need to know if you are self-employed
Staying on top of key dates will ensure you stay on track, meet deadlines and avoid paying penalties and interest. We list the key dates sole traders need to be aware of in this concise guide.
Find out moreTax for the self-employed
For self-employed individuals, the responsibility for reporting and paying the necessary tax relies solely on the individual. It is therefore important to understand what your obligations are and when...
Find out moreWho needs to file a tax return?
Self-Assessment is the system that was created by HM Revenue & Customs (HMRC) to ensure the correct amount of tax is collected for a tax year. You should therefore check each year whether you need to...
Find out moreA guide to the changes to penalties for late self-assessment tax retur...
The Government is reforming the system of penalties for late submission of tax returns and late payment of tax. This guide outlines the upcoming changes to penalties for Income Tax Self-Assessment (IT...
Find out more600,000 miss the self-assessment tax return deadline
This year saw a record 97% of taxpayers in the UK filing their 2021-22 self-assessment tax returns ahead of 31st January, but an estimated 600,000 still missed the deadline, earning instant £100 late...
Find out moreHMRC seeks out online traders and freelancers over unpaid tax
HM Revenue and Customs (HMRC) is targeting online traders, content creators and social influencers about their tax obligations from digital earnings.
Find out moreHMRC pilots text system trialled to cut waiting times
HM Revenue and Customs have started trialling a text service, which sees routine calls answered by text instead of a human to reduce waiting times.
Find out moreSelf-assessment taxpayers urged to remain vigilant ahead of 2021-22 ta...
The number of tax fraudsters operating in the UK rises on the eve of the self-assessment tax return deadline and this year is no different.
Find out moreWhat are the penalties for filing a late tax return?
The deadline for filing your 2022/23 self-assessment tax return online is 31st January 2024. The paper tax return deadline was 31st October 2023.
Find out more5.7 million yet to file their self-assessment tax return as deadline l...
The 31st January 2023 deadline for 2021-22 self-assessment tax returns is fast approaching. HM Revenue and Customs (HMRC) states that almost 5.7 million individuals are yet to file their returns and c...
Find out moreAlmost 800,000 fraudulent tax-related emails and texts issued in 2021
HM Revenue and Customs has received reports of approximately 800,000 scam texts and emails so far this year, all purporting to relate to self-assessment tax returns and tax rebates.
Find out moreDo you need to complete a self-assessment tax return?
Although not everybody needs to complete a self-assessment tax return, there are several situations where you could be required to complete one, even when you are an employee and have tax deducted fro...
Find out moreHow much National Insurance do I pay?
Individuals in the UK will make National Insurance Contributions (NICs) based employed income or self-employed profits. These NICs contribute to a state pot, which funds state benefits.
Find out moreAirbnb host earnings now received by HMRC
HM Revenue and Customs (HMRC) now has access to the income of Airbnb hosts, highlighting the importance of landlords being transparent about their taxable lettings income.
Find out moreThe benefits of having your tax return filed early
Although the deadline is months away, did you know there many benefits to filing your return sooner rather than later?
Find out morePaper self-assessment tax returns will no longer be sent automatically
HMRC has stated from this April it will no longer send out paper returns to self-assessment taxpayers in a bid to encourage them to use the online service and reduce paper waste.
Find out moreOver 100,000 tax returns filed by the TaxAssist Accountants network
Now the 31st January deadline for 2018-19 self-assessment tax return submissions has passed, TaxAssist Accountants can confirm it has filed more than 100,000 personal tax returns on behalf of its nati...
Find out moreNearly one million miss the self-assessment tax return deadline
This year saw 95% of taxpayers in the UK filing their 2018-19 self-assessment tax returns ahead of 31st January, but 958,296 missed the deadline, earning instant £100 late filing penalties.
Find out moreSurvey finds that doing your own tax return is a false economy
An independent survey of UK taxpayers revealed almost a third of those who file their own self-assessment tax return don’t fully understand what they can and can’t claim for.
Find out moreWhat your accountant needs to file your tax return
The records you provide to your accountant ahead of the self-assessment tax return deadline may change each year. Our guide explains what they will need to file your tax return.
Find out moreAct now so you don’t miss the Tax Return deadline
HM Revenue and Customs (HMRC) has reminded UK taxpayers eligible for 2019-20 self-assessment to complete their tax return before the 31st January 2020 deadline.
Find out moreWhat you need to know when filing your tax return and paying your tax...
More than 12 million people are expected to file a self-assessment tax return for the current tax year.
Find out moreThe benefits of filing your tax return today
The deadline for tax returns is on January 31st. It's important to file yours early for various reasons.
Find out moreWhat is a payment on account?
If you are self-employed or have income that is not taxed before you receive it, you may have a tax bill to pay, but are you aware how the tax stage payments can impact your cashflow?
Find out moreWhat to do if you miss the tax return deadline
The deadline for filing your 2021/22 self-assessment tax return online was 31st January 2023. The deadline for paper tax returns was 31st October 2022.
Find out moreLate tax returns and reasonable excuses
The deadline for filing 2022/23 self-assessment tax returns is 31st October 2023 for paper returns and 31st January 2024 for returns filed online.
Find out moreRead our expert answers to your Self Assessment Tax Returns questions
Is my bank interest income taxable?
I have received a lot more interest from my bank this year because of the increase in savings interest rates. I am a higher rate taxpayer and earned almost £1,000 of interest across my accounts. Pleas...
Find out moreCan I pay my underpaid income tax through my PAYE code?
I’ve just finished my self-assessment tax return and have a balance of tax to pay. I have employment income as well as other earnings that have resulted in the under payment of tax. In previous years...
Find out moreWhat are income tax payments on account?
My tax return has been submitted and I’ve been advised that I need to make payments on account. What does this mean; and how do I work them out?
Find out moreWhen is the tax return deadline for the 2022-23 tax year?
I have heard that the deadline for submitting my self-assessment tax return to HMRC is the end of October. What should I do if I have not sent my tax return information to my accountant yet?
Find out moreIs the threshold for filing a self-assessment tax return changing?
I have heard that HMRC will be changing the threshold for taxpayers who pay tax through PAYE to complete a self-assessment tax return. Could you please confirm what the new threshold is and when it wi...
Find out moreWhy should I do my self-assessment tax return early?
Are there any benefits to doing my tax return early, other than being organised?
Find out moreWhat interest will I be charged if I pay my tax late?
I don’t believe I will be able to pay my tax liability due on 31st January and wondered what interest HMRC will charge on the underpaid tax?
Find out moreDo I have to complete a self-assessment tax return?
I have heard that I may need to complete a self-assessment tax return, but how do I know?
Find out moreWhy you should not delay filing your tax return
I thought that HMRC had 12 months from the tax return deadline to open an enquiry into my self-assessment tax return which is why I normally wait until then to submit the return. Is this a sensible ap...
Find out moreI can’t file my self-assessment tax return by 31st January, will I get...
I have to file a 2020/21 Self Assessment Tax Return but am not going to be able to get it filed by 31st January 2022, will I get a penalty if I file it by the middle of February 2022?
Find out moreDo I need to complete a self-assessment tax return if I have done a ca...
My real-time capital gains tax return for the sale of my residential property has been submitted but what happens next, do I still need to do a self-assessment tax return?
Find out moreSelf-Assessment Tax Return: Missed your second payment?
I don’t have enough money to pay my second payment on account in July, what should I do?
Find out moreReceiving interest when lending your company money
I have lent my company some money, can the company pay me interest?
Find out moreWhen to pay a second payment on account
My second payment on account is due by 31st July 2023, do I have to pay this?
Find out moreChoosing to be a limited company or sole trader as a contractor
As a CIS contractor on top of the normal issues surrounding whether to be a limited company or a sole trader, are there any CIS specific issues to be aware of?
Find out moreHow do I get a tax refund if I am a subcontractor?
I’ve been working as a labourer for a couple of years now. One of my friends mentioned that he'd just got a big tax refund. How do I get a tax refund?
Find out moreWhy can I only claim Self-employment Income Support Scheme up to the e...
At the moment the Government scheme only covers the period until the end of May
Find out moreSelf-Employment Income Support Scheme: what is meant by profits?
I think I may be eligible for the Self-Employment Income Support Scheme, as the guidance says my trading profits must be less than £50,000. What is meant by ‘profits’? Are these the sales that I make...
Find out moreTax Credits renewal for self-employed
Before I fill in my Tax Credits renewal form, do I have to complete my tax return first if I am a sole trader?
Find out moreConsequences of paying tax late
I am newly self-employed and have been rather unorganised this year. I just managed to get my 2020/21 tax return filed online on 31st January 2022, but I didn’t have enough cash put aside for my tax b...
Find out moreCan I amend my Income Tax Return?
I rushed the submission of my tax return in January, and realised that I missed off the interest I received from my bank accounts and dividends received from some investments during the 2018/19 tax ye...
Find out moreAre you able to prevent receiving penalties for missing the tax return...
I missed the 31st January deadline for filing my self-assessment tax return – can I stop HM Revenue and Customs (HMRC) from issuing any penalties?
Find out moreDoes my P11D have to go on my tax return?
I am in employment but I also have some rental income so I need to complete a tax return. Does my P11D need to go on my tax return?
Find out moreAre professional fees and subscriptions allowable for tax?
I am employed as a teacher and pay several professional fees and subscribe to a few journals such as Educate magazine. Am I entitled to tax relief on these payments?
Find out moreHow do I register to file a tax return?
I have just received my Unique Taxpayer Reference (UTR) as I need to file a tax return this year. What is the next step to filing my tax return?
Find out moreDo I need to complete a self-assessment tax return?
I have heard that the deadline for completing a self-assessment tax return is 31st January, but I am not sure whether I need to complete one?
Find out moreCannot pay my tax bill
I filed my tax return on time, but I cannot afford to pay my tax bill. What should I do?
Find out moreCan I pay my tax bill through my PAYE tax code?
I have just prepared my tax return online and have tax to pay for 2020-21, can I pay this through my tax code?
Find out moreWhy is my tax bill so high?
I have just completed my tax return online for the first time and it says I owe £8,000 in tax this January. I had already estimated it would be in that region, so that wasn’t a surprise. However, it a...
Find out moreCan I correct my tax return?
I have noticed that I made a mistake on the tax return I submitted on 31st January – am I able to amend it?
Find out moreWhat penalties can I expect for a late tax return?
I am yet to file my tax return. What penalties can I expect?
Find out moreWhat should I do if I cannot pay my tax bill?
I filed my tax return ontime, but I could not afford to pay my tax bill. What should I do?
Find out moreFiling tax returns
I have just received my Unique Taxpayer Reference as I need to file a tax return this year. What is the next step to filing my tax return?
Find out moreSee how TaxAssist Accountants can help you with a free, no obligation consultation