You can email the Online Services Helpdesk (OSH) for technical help but they cannot reply to questions about taxes or tax returns. If your query is not related to online technical issues, please contact the relevant business area.
If you have activated your online account before, but have now lost both your User ID and password, you may be able to use the secure online 'Request a duplicate Self Assessment Online User ID' form.
You can only use this form if you:
Do not use this form if you:
If you log into Self Assessment Online Services, you can use 'Ask a question'. This lets you send personal or confidential information securely regarding your Self Assessment Online Services.
If you need general technical help about using online services, and it doesn't involve sending personal data, you can email HMRC using the links below. These emails are sent at your own risk. The information isn't secure as emails can be intercepted. HMRC will only reply to your enquiry by email if the reply doesn't include personal or confidential information, otherwise HMRC will ask you to telephone the Online Services Helpdesk.
If you have any doubt about the authenticity of an email that claims to be from HMRC, follow the link below: