Help online for Self Assessment
How to get online help with Self Assessment from HMRC by using our digital assistant, community forums, YouTube videos and online tools.
Using HMRC’s online services are usually much quicker, easier and cheaper than calling us.
You can find out how to get help from HMRC if you need extra support if you cannot use our online services.
Ask for help online
You can use HMRC’s digital assistant if you need to ask further questions about Self Assessment or have a specific query. You can also ask to chat with an adviser, if one is available.
You can also ask questions using:
- HMRC’s Self Assessment community forum — post any questions you have, get an answer and read similar posts that already have a reply
- HMRC Customer Support on X (Twitter) — for general questions about Self Assessment (do not include your personal or financial information in your post)
Use HMRC online services
You can sign in to your personal tax account or business tax account to check your records and manage your details.
Watch videos and webinars and use HMRC toolkits
Find out about HMRC email updates, videos and webinars for Self Assessment to learn how to:
- watch HMRC Self Assessment videos on YouTube
- register for and join live webinars, ask a question in the chat and get answers from one of our experts
- use our toolkits to help you complete your Self Assessment tax return
Use online tools
You can:
- check if you need to send a Self Assessment tax return — use this tool to help you decide if you need to complete a tax return and what steps to take next and get links to helpful guidance
- check how to register for Self Assessment — use this tool to find out how to register for Self Assessment and get links to helpful guidance
- check when you can expect to get a reply — if you’ve already contacted us, find out when you can expect to get a reply (you should only contact us after that date, as we’re busy dealing with requests)
- use the self-employed tax calculator to help you estimate your next Self Assessment tax bill
- work out your transition profit — use this tool for the 2023 to 2024 tax year if you are affected by the new tax year basis (Basis Period Reform)
You can also use our get help with Self Assessment guidance to find out information on how to:
- register for Self Assessment
- find your Unique Taxpayer Reference
- complete your Self Assessment tax return
- understand your Self Assessment tax bill
- pay your Self Assessment tax bill
- find your lost sign in details
Get the HMRC app
You can download the HMRC app onto a mobile device (for example, your phone or tablet) and use it to:
- check how much Self Assessment tax you owe
- make a payment
- set a reminder to make a Self Assessment payment
- find your Unique Taxpayer Reference (UTR) for Self Assessment
- update your postal address
- choose to be contacted by HMRC electronically, instead of by letter
- track forms and letters you have sent to us
- claim refunds