CGT and selling shares

I sold my shares for around £4,900 on 5th April which comes under the 23/24 tax year. I understand the annual exempt amount for individuals is £6000. I have two questions: 1. As i do self assessment do i need to declare the share sales as it comes well under the exempt amount and this is the only transaction I made in the 23/24 year that is a capital gain? 2. If i do need to declare it on my self assessment, i know how much the shares sold for though i don't know the exact amount i bought it for as during the 30 years of holding onto them any dividend received was reinvested in purchasing more shares, can you please advise? Thank you

Hi,

If the disposal value of the shares was £50000 or more, then yes, it must be declared in your tax return, whether a gain arises or not. If it is less than £50000, you do not need to report it in your tax return, as your annual exempt allowance covers any gain.

Thank you.