Tax Return Contact Number

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0844 248 2559

Most employees are not required to file a tax return because they are part of the PAYE system and so it is done for them. However, if you are self-employed, you will need to register your tax return yearly with HMRC. This is done by registering a self-assessment tax return. If you would like more information on how to do this then the best thing to do is call the Tax Return head office on 0844 248 2559 or if you have a specific query, any of the numbers displayed below.

Send a Return

Once you have registered yourself as self-employed with HMRC, you can go ahead and file a tax return. You can use an online service, but for anyone that would feel better talking to an expert, you can call 0843 596 4143. Upon calling the returns number, you will be put straight through to a call handler who can tell you all about the tax return process. They will ask if you’re self-employed or a sole trader or if you’re registering a partner or partnership. You will also be asked your preference when it comes to software or paper forms and which way you would like to send your returns – there are benefits to each method so allow the call handler to explain it to you.

Return Deadlines

It is essential that HMRC receives your tax returns plus any outstanding money you owe by the deadline – if not you will be liable for penalty charges. The deadline differs depending on whether you issue paper or online returns and by calling 0843 596 4144 you can find out when your deadline is so you are not at risk of late charges. You can also call this number if you have been asked to pay a late penalty but would like to appeal against it. Appeals will work if you are deemed to have a good enough reason, you can discuss this further with the call handler.


There are different penalties and fines depending on how late your tax return is. If you find that you have been late to make your tax return and you would like some help and advice, then you can call 0843 596 4145 where an advisor will help you out with the next steps to take and how to pay your late fee. If you are up to three months late with your tax return you will be charged £100 – the amount will go up after this.


When you call 0843 596 4146 you will be put straight through to the tax return complaints department where you will be asked to give specific details of your complaint. Hopefully, your complaint will be resolved there and then over the phone between you and the call handler, but if it is a complex issue it might have to be escalated to a specific department. If this is the case, the call handler will explain when you can expect to receive a callback and the steps that they are taking to resolve your complaint.

Getting Self-Assessment Help

There are different options when it comes to getting help with your self-assessment and you don’t have to fill it out alone if you are confused. When you call 0843 596 4147 you will be given the options of help that you can use such as appointing an accountant to fill out your form for you or watch a video or join a webinar for advice on how to fill it out properly. General Enquiries can be discussed on this number and it would be worth having your forms to hand whilst you are on the phone so that you can be talked through it step by step.

Tax Return Telephone Numbers

Department Contact Number
Customer Services 0844 248 2559
Send a Return 0843 596 4143
Return Deadlines 0843 596 4144
Penalties 0843 596 4145
Complaints 0843 596 4146