HMRC Self Assessment Customer Service Number
Phone: 0300 200 3310
Alternative number: +44 161 931 9070
Call cost: Charged at the standard local rate (03), included in most call plans.
HMRC helpline for Self Assessment tax returns, UTRs, payments and penalties.
HMRC's Self Assessment helpline deals with tax return questions, registering for Self Assessment, payments and penalties. Have your Unique Taxpayer Reference (UTR) and National Insurance number ready. Relay UK users can dial 18001 first. Closed on bank holidays.
HMRC Self Assessment opening times
| Monday | 08:00–18:00 |
|---|---|
| Tuesday | 08:00–18:00 |
| Wednesday | 08:00–18:00 |
| Thursday | 08:00–18:00 |
| Friday | 08:00–18:00 |
| Saturday | Closed |
| Sunday | Closed |
Website: gov.uk/self-assessment-tax-returns
Frequently asked questions
What is HMRC Self Assessment's customer service phone number?
The HMRC Self Assessment customer service number is 0300 200 3310. An alternative number is +44 161 931 9070.
Is HMRC Self Assessment customer service open on Sunday?
No, HMRC Self Assessment customer service is closed on Sundays.
Is HMRC Self Assessment's phone number free to call?
0300 200 3310: It isn't a freephone number, but 03 numbers cost the same as calling a standard 01 or 02 landline and are included in the inclusive minutes on most mobile and landline plans.
What are HMRC Self Assessment's opening hours?
Friday: 08:00–18:00, Monday: 08:00–18:00, Tuesday: 08:00–18:00, Thursday: 08:00–18:00, Wednesday: 08:00–18:00
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