Cryptocurrencies are digital currencies that one can convert to fiat currency anytime. Hence, any cryptocurrency in the form of mining rewards is taxable as you can exchange them as fiat currencies.

Besides mining rewards, any income or profits you make from cryptocurrency are also taxable. However, crypto taxes work differently than regular fiat currencies. Hence, if you are into crypto mining or holding cryptocurrencies, you should be aware of its tax implications. This blog could be a good start.