Claiming a loss on the sale of shares.

I bought some shares in a company called The Restaurant Group PL and I have made a loss of £423.98. How do I claim this loss on my Self assessment form..... What form do I put this loss on and do I dend you copies of the contract note and sale cash payment? thanks in advance!

Hi ,
 

please refer to guidance at : www.gov.uk/government/publications/negligible-value-claims-and-income-tax-losses-on-disposals-of-shares-you-have-subscribed-for-in-qualifying-trading-companies-hs286-self-assessment-he/hs286-negligible-value-claims-and-income-tax-losses-on-disposals-of-shares-you-have-subscribed-for-in-qualifying-trading-companies-2024  . Thank you .