Self Assessment Q&A on 26th January » Doing my tax return online » Go to message
Hi,

There could be one of a number of reasons why you are having issues. If you contact our Self Assessment helpline one of our advisers will be able to help you resolve this. Contact details can be found here: https://www.gov.uk/government/organisations/hm-revenue-customs/contact/self-assessment

Please have your personal details ready, as well as any online details you have created/received - user ID/Password/Activation code.

Thank you