I have just been dollar cost averaging the last 12 months and holding, not planning to sell until 2024 at least.
Since you are Dollar cost averaging, you would want to keep records of all your transactions at the time you bought and the price of bitcoin at that time in the U.K. exchange rate. This would make it easier to pay the tax at the time it is due.
The link shared by Pokapoka124 would prove useful if you read it and as advised use the services of a professional to avoid making any mistakes.
You pay taxes on your capital gains over the year, this means that there is no "sorting out" before withdrawing!
Does this mean one would pay capital tax even though they are yet to liquidate their assets?
- Jay -