How to calculate UK Tax on your General Investment for a more active trading

[Richard.W]

There are some previous threads on this subject that are worth reading

UK Capital Gains Tax

So this is all hypothetical because I’m not making enough money to pay CGT yet, but say I have £100,000 of stocks and this it doubles to £200,000. When would I pay CGT? When I sell the shares or when I actually withdraw this money from T212? Because if it’s the former, and I sold my £200,000 of shares and bought £200,000 of something else straight away, would I still be hit with a big CGT bill? And if it’s the latter, does that mean I would be allowed to withdraw the CGT allowance each year an…

UK Capital Gains Tax Question

In the UK, does Trading 212 automatically deduct the CGT (Captial Gains Tax) when we sell a holding? Is the CGT automatically withheld by Trading212 since I have set UK residency? Or is it up to me to calculate every single stock sold? Do I have to calculate each one and then write it into my self-assessment at the end of the year? FYI: I am using the investment account (not an ISA). I can’t open a second ISA at the moment so that’s not a solution.

Here is a calculator that correctly deals with the UK matching rules

CGTCalculator online capital gains calculator for UK share trades

The author says it can cope with over 10,000 trades.