Crypto assets are not real currencies, but they are taxable property - like the gold bullion, the New Zealand Inland Revenue Department (IRD) has stated. Failure to report capital gains on crypto transactions is considered tax evasion by the IRD. Similarly, the US Internal Revenue Service (IRS) has also classified cryptocurrencies as property, and both the IRD and the IRShave provided comprehensive guidelines on how to file taxes for crypto-related transactions.