HMRC Online Services helpdesk contact number
This is HMRC's technical support desk: lost user IDs, password resets, activation codes and error messages when filing online. It cannot answer tax questions.
Checked against gov.uk on 7 September 2026
Online services helpdeskLocal rate
Other ways to call
From outside the UK: +44 161 930 8445
Have this ready before you call
- Your Government Gateway user ID, if you have it
- The exact error message, if you are seeing one
Common questions
Can this helpdesk answer questions about my tax?
No. It only fixes technical problems with HMRC's online services. Tax questions go to the line for that tax, like Self Assessment on 0300 200 3310.
I lost my Government Gateway ID. Is this the right number?
Yes, though the online recovery route on gov.uk is usually faster than phoning.