How do I contact HMRC about Making Tax Digital?
HMRC's contact for Making Tax Digital for Income Tax is Self Assessment: general enquiries. HMRC lists it for queries about "signing up for or using Making Tax Digital for Income Tax", online, by phone and by post. Questions about how your software works go to your software provider.
Online: HMRC's digital assistant and webchat
HMRC's digital assistant answers questions about Making Tax Digital for Income Tax, including:
- who needs to sign up and when
- checking if you can get an exemption
- how to choose the right software
- how to sign up
- how to use Making Tax Digital for Income Tax
HMRC's words: "It cannot help with personalised advice but can offer guidance to answer your questions." If the assistant can't help, "you can ask to transfer to a webchat with an HMRC adviser if they're available."
You'll find the assistant on HMRC's Making Tax Digital help and support page and on the Self Assessment: general enquiries page.
By phone
Self Assessment: general enquiries
Telephone: 0300 200 3310
Outside the UK: +44 161 931 9070
Monday to Friday, 8am to 6pm. Closed bank holidays.
HMRC says to call this line if you have a query about "signing up for or using Making Tax Digital for Income Tax", or about your Self Assessment returns, payments or notices. If you need extra support, HMRC has a page on getting help from HMRC if you need extra support.
Agents have their own route: HMRC lists the agent dedicated line.
By post
You can write to HMRC with a Self Assessment query:
Self Assessment
HM Revenue and Customs
BX9 1AS
United Kingdom
On X
"You can use X to ask HMRC questions." Start your post with @HMRCcustomers. HMRC says it cannot discuss specific cases or individual tax affairs there, "so do not give any personal details". Opening times: Monday to Friday, 8am to 8pm, and Saturday, 8am to 4pm.
Problems signing in or error messages
Lost your sign in details? HMRC says "you'll be told how to do this when you try to sign in." For an error message, or trouble verifying your identity, your log in details or access codes, use the "Get help" or "Is there anything wrong with this page" link inside the online service you're using.
Technical support with HMRC online services
Telephone: 0300 200 3600
Outside the UK: +44 161 930 8445
Monday to Friday, 8am to 6pm. Closed bank holidays.
This line is for technical problems with HMRC online services. HMRC says not to use it for tax queries.
HMRC also keeps a list of problems with its Making Tax Digital service.
What to have ready
For the technical helpline, HMRC says: "This helpline may ask you some security questions." Its advice before you call is to make sure your personal details and address are up to date in your personal tax account or business tax account.
If you are signed up, much of what you'd ask about is in your HMRC online account. Sign in to HMRC online services with the sign in details you use for Self Assessment, then select "Making Tax Digital for Income Tax". There you can:
- check quarterly update and tax return due dates
- view what you need to report for each tax year (your reporting obligations)
- view an estimate of your tax bill
- view and appeal penalty points and penalties
HMRC's line on anything else: "If you need to do something not listed here, contact Self Assessment: general enquiries."
Check your sign-up status yourself
Sign in to your HMRC online account. HMRC says: "Once you're signed into your account, a message will appear on screen confirming you are already signed up." And: "If you do not see a message, you are not signed up yet."
If Making Tax Digital for Income Tax doesn't show as a service, HMRC says you can add it yourself: select "Add a tax to your account", choose Making Tax Digital for Income Tax, and answer the security questions. Had a letter from HMRC about it?
HMRC or your software provider?
HMRC draws the line itself: "If you are using Making Tax Digital for Income Tax software, you will need to contact your software provider directly for technical support. HMRC will not be able to answer any technical questions about your software."
On sending quarterly updates, HMRC adds: "Your software provider should have guidance on how to do this. HMRC cannot give advice about specific software products, as each product will work differently."
| Your question | Who answers it |
|---|---|
| Signing up for or using Making Tax Digital | HMRC: Self Assessment: general enquiries |
| Signing in, error messages, access codes | HMRC: technical support with HMRC online services |
| How your software works, or sending an update from it | Your software provider |
Where SoleTax fits
SoleTax is software for keeping your records and sending your quarterly updates. It isn't HMRC, and it can't see your HMRC online account. Ask SoleTax, inside the app, answers how-to questions about SoleTax and gives HMRC's published rules as information. Questions about your own HMRC record go to HMRC. Judgement calls, like whether something is right for you, are an accountant's to answer. SoleTax support.
Quick answers
What is HMRC's phone number for Making Tax Digital?
HMRC lists Self Assessment: general enquiries for queries about signing up for or using Making Tax Digital for Income Tax. The number is 0300 200 3310, or +44 161 931 9070 from outside the UK. Lines are open Monday to Friday, 8am to 6pm, and closed on bank holidays.
Is there an HMRC webchat for Making Tax Digital?
Yes. HMRC's digital assistant answers questions about Making Tax Digital for Income Tax. If it cannot help, HMRC says you can ask to transfer to a webchat with an HMRC adviser, if one is available.
Who do I contact about a problem with my MTD software?
Your software provider. HMRC says that if you use Making Tax Digital for Income Tax software, you need to contact your software provider directly for technical support, and HMRC will not be able to answer technical questions about your software.
How do I check if I'm signed up for Making Tax Digital?
Sign in to HMRC online services with the sign in details you use for Self Assessment. HMRC says a message will appear on screen confirming you are already signed up. If you do not see a message, you are not signed up yet.
I can't sign in to my HMRC online account. Who do I contact?
HMRC's technical support with HMRC online services. You can recover or reset lost sign in details when you try to sign in. The helpline is 0300 200 3600, or +44 161 930 8445 from outside the UK, Monday to Friday, 8am to 6pm.
One tap to HMRC
SoleTax keeps your digital records as you go: snap a receipt, drive as normal, done. Each quarterly update goes to HMRC from inside the app. 14 days free. No card needed.
Start your free trialSources: gov.uk, Self Assessment: general enquiries (updated 28 July 2026); use Making Tax Digital for Income Tax: help and support (updated 16 July 2026), check if Making Tax Digital for Income Tax has been added to your HMRC online account (updated 16 October 2026) and send quarterly updates (updated 16 October 2026); technical support with HMRC online services (updated 28 January 2026); check what to do if HMRC has signed you up for Making Tax Digital for Income Tax (updated 11 September 2026); sign up for Making Tax Digital for Income Tax (updated 13 October 2026). Checked on 30 October 2026.