Last updated: 16 October 2026
How do I contact HMRC?
HMRC wants most people to use its online services first, but its phone helplines are still open. In June 2023 HMRC announced it would close the Self Assessment helpline for six months a year and push callers to online help. The plan was dropped the next day after strong criticism, and the main helplines still run all year.
Main HMRC helplines
| Helpline | Number | Used for |
| Self Assessment | 0300 200 3310 | Tax returns, UTRs, payments on account |
| Income tax and PAYE | 0300 200 3300 | Tax codes, refunds, employment income |
| Employers | 0300 200 3200 | PAYE schemes, RTI, payroll queries |
| VAT | 0300 200 3700 | Registration, returns and payments |
| National Insurance | 0300 200 3500 | Contribution records and numbers |
Lines usually open 8am to 6pm on weekdays. Calls are busiest in January and July, and early mornings are quieter.
Online options
- HMRC app: check your tax code, National Insurance number, State Pension forecast and Self Assessment balance.
- Personal tax account and business tax account: update details, claim refunds and see letters.
- Webchat and the digital assistant: available for many topics on gov.uk.
- Online forms: many requests, such as some repayments and changes of address, can only be made online.
Chasing a letter you sent to HMRC
Use the “check when you can expect a reply” tool on gov.uk before you call. It shows HMRC’s current processing times for each type of query. If the date has passed, call the relevant helpline and quote your reference. Always keep a copy of what you sent and proof of posting.
Using an accountant as your agent
Once you authorise an agent, they can deal with HMRC for you. Agents have dedicated lines and online services, so queries are often resolved faster. HMRC has also run an Agent Account Manager service for long-delayed or complex cases, which agents can use when normal routes have failed.
Avoiding scams
HMRC will never tell you about a refund by text or email, ask for bank details in a message, or threaten arrest on a phone call. If you are unsure, do not click any link. Log in to your account directly or call HMRC on a number from gov.uk.
Tips for a faster answer
- Have your National Insurance number, UTR or VAT number ready.
2. Note the date, time and name of the adviser you speak to.
3. Ask for a reference number for every call.
4. Follow up in writing if a deadline depends on the answer.
Writing to HMRC
Some matters still need a letter, such as certain appeals or complaints. Use the correct postal address for that tax on gov.uk, as HMRC uses different BX postcodes for different departments. Put your name, reference number and a daytime phone number on every page.
Frequently asked questions
Is the HMRC helpline free?
0300 numbers cost the same as calls to 01 and 02 numbers and are often included in phone plans.
Can I email HMRC?
Generally no. Use the online account, webchat or post.
What if HMRC’s delay causes me a penalty?
A delay by HMRC can be a reasonable excuse. Keep evidence of your contact.
Can someone call on my behalf?
Yes, with your permission on the call, or permanently if they are your authorised agent.
Related: HMRC helpline closure in 2023, tax refund phishing scams and is a refund message a scam.
Talk to Accotax
Want this handled for you? Our team at Accotax can help with dealing with HMRC on your behalf. See our small business accountants service, or contact us for a free, no-obligation quote.
This page is general guidance based on HMRC rules for the 2026/27 tax year, checked against gov.uk on 16 October 2026. It is not personal advice, so speak to an accountant about your own situation.
