RE: Tax Query for Banbury or anybody else?14 Feb 2021 00:52
"My Trade account is my ‘problem’." Yep, sounds like you've got your work cut out, m8!
Basically, you will need to compute the gain or loss on each type of share that you've held. So you accumulate the purchase costs of Co X shares, and if you sold them all before the end of the tax year, you deduct the total cost from the net proceeds to give a gain or loss. If you sold part of the holding, you reduce the cost deducted pro rata. (It gets a bit more complicated if you sell Co X shares and buy back Co X shares within 30 days).
You will then have to aggregate all the gains and losses on each type of share to come up with your net gain or loss for the tax year on your shares.
Cash transferred to/from your trading a/c is irrelevant to your tax position.
That's probably enough for now...