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HMRC internal manual

Self Assessment Manual

Returns: filing returns online: enquiries about returns filed online

Customers who wish to file their returns online can obtain information from – file returns online

Local involvement in dealing with enquiries will generally fall to the office with processing responsibility.

If the enquiry is a request for further information or help you should advise the taxpayer that full details can be found on our Website.

If the taxpayer does not yet have access to the Internet, or they still require more information, they can contact the Online Services Helpdesk.

Online Services Helpdesk

Online Services Helpdesk


Telephone: 0300 200 3600

(Overseas: +44 161 930 8445)

* Weekdays between 8.00am and 8.00pm
* Saturdays between 8.00am and 4.00pm
* (Closed Sundays, Christmas Day, Boxing Day and New Years Day)

Minicom: 0300 200 3603