Find out what to do if you’ve lost your:
- user ID
- activation code
You can complete Self Assessment as an individual online using GOV.UK Verify if you do not want to wait for replacement details to be sent to you.
It will take about 10 minutes to verify your identity.
Get help with:
- problems logging on or registering for an online service
- problems submitting forms
- error messages in your online account or on HMRC forms
- downloading and using HMRC free software and tools
Have your HMRC Unique Taxpayer Reference (UTR) number with you when you call.
Contact the Self Assessment Helpline if you have a question about how to fill in a tax return.
0300 200 3600
0300 200 3603
+44 161 930 8445
Monday to Friday: 8am to 8pm
Saturday: 8am to 4pm
Sunday: 9am to 5pm
Closed bank holidays, Easter Sunday, Christmas Day, Boxing Day and New Year’s Day.