I wouldn't. Of course, in my country cryptocurrency profits are for free because the high court of the EU declared cryptos as a currency (if you go on holidays outside of the eurozone, you don't pay taxes either for the foreign fiat currency you buy right?)
If the situation is different in your country, I'd argue that they aren't realized profits yet until you convert to fiat? You could still lose it all (from their perspective) so would be useless to pay taxes on income you never realized right?
But I'm not a lawyer.