Amend Self-assessment return

Hi, I have submitted self-assessment return through a commercial software. Now I have to make some corrections for the return but the commercial software is unable to do so. How can I contact the HMRC to do the corrections? Thanks

Hi Karen,

If you contact our helpline we may be able to make the corrections over the telephone.

If not you will need to write to us.

Self Assessment: general enquiries

Thank you.