How to notify past years losses

Hi, How can I notify 2020-2021 tax year capital gain losses ? I guess 2020-2021 online Self Assessment is not open anymore, and I don't seem to find any option in 2021-2022 Online Self Assessment to report previous years capital gain losses. Thanks

Hi Oscar Moreno,

You will need to do this in writing.
HMRC must also be notified within 4 years of any losses that arise to allow then to be carried forward.
HMRC,
PAYE & Self Assessment
BX9 1AS

Thank you.

Hi, When reporting previous years capital gains losses (to offset gains in 2021/22) what information needs to be included in the letter? Just the amount of loss for each year? Thanks,

Hi,

You will need to confirm the name of the company invested in, original date and amount of investment and reason why a loss has occured.

Thank you.