CGT losses using real time service

I will have CGT liability in 23/24 from stocks I intend report this via the real time service. Can I claim a CGT loss from 22/23 using this service or will I need to complete a full return

Hi Peter Fletcher,
The realtime service is only set up to report gains.  Losses should continue to be claimed either through a self assessment tax return or in writing, together with supporting evidence.
Thank you.

Thank you.

So I would write to; Capital Gains Tax Queries HM Revenue and Customs BX9 1AS United Kingdom

Hi
Yes please.Give details of when purchased/sold and amounts involved.

Thank you.