Unwaged - do I pay capital gains tax on all profit from shares if above £6K profit

The HMRC website is not clear to me so I thought I would ask here. I am 64 I have zero income and am living off savings I have some shares outside an ISA They are all USA shares (That obviously should be inside an ISA - but long story) I have used up my ISA allowance for this tax year In terms of capital gains the government website does not make it clear - to me Whether I can sell for a profit of up to £12,750 + £6,000 = £18,750 and pay no CGT at all Or whether any profit at all over £6,000 is subject to CGT On which I would then be paying 10% CGT (Unless it was enough to take me into a higher rate - which I am confident that it will not) Thanks

Hi MP78912,
Capital gains is due on any profit over £6000 for 23/24 tax year.
Your Personal Allowance of £12750 cannot be used for capital gains.
See guidance here:
Capital Gains Tax rates and allowances
Thank you.