It’s treated like a property sale and taxed like your normal income unless you hold for over a year, then you’re taxed less.

If you’re poor, your marginal rate is probably around 12%. If you get rich from crypto this year, you may enter other brackets. This is only something to worry about if you profit $75,000 or more. You’d just need to set aside a little extra for taxes.

You can pay estimated taxes as you go (like people who are self employed) do to pay down what you’ll owe when you file your return.

Most brokers will have tax info for you to download at the end of the year, so you don’t have to keep records except just to have an idea of what your tax bill will be.