In most jurisdictions, a transfer of cryptocurrency from one exchange to another, or between your own wallets, does not trigger a capital gain on the cryptocurrency being transferred. If our app is showing a capital gain, this can be due to one of the following reasons:
1. The transaction was incorrectly categorized.
Let's say your transaction was accidentally (and incorrectly) categorised as a 'sell' instead of a 'send' - this would triggered a capital gains tax event.
In this situation, you'll need to click the dropdown and categorise the transaction as a 'send' instead:
2. If there was a fee on the transfer transaction.
Generally speaking, when you dispose of cryptocurrency to pay for a fee you are triggering a capital gain event on the value of the fee paid in cryptocurrency. The capital gain (loss) is realized on the difference between the buy and sell price of the cryptocurrency before "paying" for the fee.
Please refer to this article.