BlockChain-1-844-291-4941 Blockchain enterprise supportIn general, capital losses mean that the amount you spent when you bought or received the crypto (its adjusted cost basis) exceeds the proceeds you received for its sale. You do not pay tax on capital losses, but you can offset your capital gains with those losses.
If your capital losses exceed your capital gains, you may carry forward the unutilized losses to future tax years. There is no time limit on how long you can carry forward the unutilized losses. However, capital losses must be registered with the HMRC within 4 years after the end of the tax year that you made such losses. You may refer to the HMRC website for more details about the allowable capital losses.