Key takeaways
- The HMRC VAT helpline number is 0300 200 3700, or +44 2920 501 261 from outside the UK.
- The VAT helpline is open Monday to Friday, 8am to 6pm, and HMRC says it is least busy between 8:30am and 11am.
- Have your postcode and VAT registration number ready when you call the VAT helpline.
- You cannot pay VAT or agree time to pay on 0300 200 3700; call the VAT payment problems line on 0300 200 3831 instead.
- Problems signing in to VAT online services go to a separate helpline on 0300 200 3701.
- There is no phone line for VAT registration; HMRC asks you to apply and make changes online, by email or by post.
- Callers who cannot hear or speak on the phone can use Relay UK by dialling 18001 then 0300 200 3700.
The HMRC VAT helpline is 0300 200 3700, open Monday to Friday, 8am to 6pm, and closed on bank holidays. HMRC says the line is least busy between 8:30am and 11am. Have your postcode and VAT registration number ready before you call.
Which HMRC VAT number should you call?
HMRC splits VAT calls across three phone lines, and registration has no phone line at all. These are the numbers on GOV.UK, checked on 6 November 2026.
| Query | Number | Notes |
|---|---|---|
| General VAT enquiries | 0300 200 3700 | Includes MTD for VAT |
| VAT online services problems | 0300 200 3701 | Sign-in and error messages |
| Cannot pay VAT on time | 0300 200 3831 | VAT payment problems |
| Outside the UK | +44 2920 501 261 | Same hours |
| Relay UK | 18001 then 0300 200 3700 | If you cannot hear or speak |
Every line is open Monday to Friday, 8am to 6pm. The VAT: general enquiries page was last updated on 15 July 2026, when HMRC added an online form for businesses that supply charities.
For other taxes, see our full list of HMRC telephone numbers.
What the VAT helpline covers
The general line deals with VAT questions and changes to your business. HMRC lists these topics.
- General VAT questions
- Making Tax Digital for VAT
- Reporting changes to your business
- The Fulfilment House Due Diligence Scheme (FHDDS)
HMRC asks you to call only if you cannot find the answer online. When you call, an automated system asks why you are calling. If you cannot use speech recognition, HMRC offers extra support.
What you cannot do on the VAT helpline
You cannot pay a VAT bill or set up a payment plan on 0300 200 3700. GOV.UK says: “You cannot pay, or agree time to pay using this phone number.”
If you cannot pay on time, call the VAT payment problems line on 0300 200 3831. Our guide to HMRC Time to Pay explains how payment plans work.
You also cannot register for VAT by phone. The registration contact page lists no phone number. You apply online with a Government Gateway user ID, or by email or post. See our VAT registration guide for the steps.
What to have ready before you call
HMRC asks for two things up front, and may then ask security questions.
- Your business postcode
- Your VAT registration number, if you have one
- The VAT period and return the query is about
- Any HMRC letter, penalty notice or reference number
- Up-to-date details and address in your business tax account
Keep a note of the adviser’s name, the date and time, and anything agreed. Follow up in writing if HMRC promises to do something.
Signing in and online services problems
Technical problems go to a separate line, 0300 200 3701, not the general helpline. It covers lost user IDs, passwords and activation codes, service availability and error messages, according to HMRC’s VAT online services support page.
HMRC says the 3701 line is not for general tax questions or identity verification problems. Have your postcode and VAT registration number ready for this line too.
When is the VAT helpline quietest?
HMRC says VAT lines are least busy between 8:30am and 11am. It does not publish a waiting time for the VAT line alone. Its performance data, published on 8 October 2026, gives a figure across all helplines.
| Month (2026) | Average wait | Calls over 10 minutes |
|---|---|---|
| June | 11:46 | 50.0% |
| July | 9:38 | 40.3% |
| August | 8:20 | 34.8% |
Our guide to the best time to call HMRC covers busy days and months.
Writing to HMRC about VAT
You can write to BT VAT, HM Revenue and Customs, BX9 1WR, United Kingdom. You do not need a street name or PO box. HMRC warns replies may take longer than 15 working days, so phone or use the digital assistant if the matter is urgent.
Which applies to you?
- If your VAT return is due soon and you cannot pay, call 0300 200 3831 before the due date.
- If you cannot sign in to file a return, call 0300 200 3701.
- If you want to register or deregister, apply online; there is no phone route.
- If you have a general VAT question, call 0300 200 3700 between 8:30am and 11am.
What to do now
- Check your next deadline. GOV.UK says returns and payments are usually due one calendar month and 7 days after the end of the VAT period.
- Check your figures. Use our VAT calculator to check net, VAT and gross amounts before you file.
- Plan for Christmas. HMRC adds festive opening times to its contact pages each December.
Frequently asked questions
What is the HMRC VAT helpline number?
The number is 0300 200 3700. From outside the UK, call +44 2920 501 261.
What are the VAT helpline opening hours?
It is open Monday to Friday, 8am to 6pm. It is closed at weekends and on bank holidays.
What is the best time to call the HMRC VAT helpline?
HMRC says the VAT lines are least busy between 8:30am and 11am.
Can I register for VAT over the phone?
No. HMRC lists no phone number for VAT registration; you apply online, by email or by post.
Who do I call if I cannot pay my VAT bill?
Call the VAT payment problems line on 0300 200 3831. You cannot agree time to pay on the general VAT helpline.
Sources
Rates, thresholds and rules in this guide were checked against HMRC and GOV.UK guidance on 6 November 2026. Tax rules change, so check the current position on GOV.UK or with a qualified adviser before acting. This guide is general information, not personal advice.