Yes, Crypto is subject to Capital Gains, and the Purchase Price (Spent) is the basis, and the Selling Price is the proceeds.
This will determine the amount of gain or loss.
The dates of the trades are critical.
- Short-term gains (held <1 year) are taxed at 10%-37%;
- Long-term gains (held >1 year) at 0%, 15%, or 20%.
See the TurboTax video, and links on posting Cryptocurrency