HMRC are advising taxpayers to register by 21 January 2009 to file their return online before the 31 January filing deadline.
The 31 October deadline for filing returns on paper has passed. If you have not yet filed your Self Assessment return, you must now send this online by 31 January to avoid being charged a penalty.
To register, click here
Further information on the self assessment deadline is available here.
In addition, HMRC have warned taxpayers of the danger from scam emails. Fraudsters are targeting taxpayers with thousands of scam emails in the run up to the 31 January Self Assessment tax deadline. HMRC also warned the public to be aware of further fraudulent attempts to obtain personal information after the 31 January deadline has passed when many people will be waiting to hear about genuine tax refunds.
Further information is available here