So far there is no publication concerning to it, only they put tax on the item you buy with Bitcoin in some country but I never heard a country forcing its citizen to pay tax for their earning in Bitcoin or crypto.
Yeah I've never heard of it. after all, how does the government do that? whereas they don't know who uses bitcoin? even in my own
country there isn't any tax even though you use bitcoin to shop, maybe the situation will be different in the next few years?