The US treasury, CFTC, and SEC are all having a turf war over who will regulate crypto. The Treasury was first and regulates it under FinCEN like currency, treating companies as money service businesses. The CFTC wants it to be a commodity, but hasn't done much. The SEC is most aggressive and likes to classify cryptos randomly as securities, and then heavily fine everyone involved. That's not the same as taxation. It's taxed as a property by the IRS.