Self assessment
This information applies to England, Wales, Scotland and Northern Ireland
You can find information about self assessment on GOV.UK and on the Low Incomes Tax Reform Group website. You can get help with your self assessment tax return from the TaxAid website.
For general enquiries about Self Assessment, telephone HMRC on the Self Assessment Helpline, 0300 200 3310 (Textphone 0300 200 3319).
Your call is likely to be free of charge if you have a phone deal that includes free calls to landlines - find out more about calling 030 numbers.