Do I have to pay tax?
Individuals who hold cryptoassets as a personal investment, usually for capital appreciation in its value or to make particular purchases will be liable to pay Capital Gains Tax when they dispose of their cryptoassets.
If you are doing a large amount of trades, you may also have to pay taxes if you reach a certain threshold. Trading from one cryptocurrency to fiat counts towards this, as well as from one cryptocurrency to another.
Please visit this UK government web page that explains the above in more detail: https://www.gov.uk/government/publications/tax-on-cryptoassets
Important Note: Coinfloor does not provide tax advice and this material should not be considered as such. For further information regarding your specific situation, please consult with a tax professional.