iirc there was a line/section on this years form asking about crypto
Is Bitcoin subject to capital gains tax?
Here’s what you need to know about filing crypto taxes for 2020. The U.S. Internal Revenue Service (IRS) in 2014 decided bitcoin (BTC, -0.91%) and other cryptocurrencies should be treated as “property”, meaning they qualify for capital gains treatment similar to traditional assets like stocks and bonds.Feb 26, 2021
Crypto Tax 2021: A Complete US Guide - CoinDesk
https://www.coindesk.com/crypto-tax-2021-guide
That is the rules. But crypto transactions can be barter style, leaving no footprint behind. That is the reason crypto has value.