How much tax do I owe on ETH coins?

Good afternoon, I'm curious about the tax implications of my holdings in Ethereum (ETH) coins. Could you please elaborate on how much tax I might owe on these coins? I've been trading and holding ETH for some time now, and I'm not entirely sure how to calculate the tax liability on my transactions. Additionally, are there any specific rules or regulations that I should be aware of in relation to cryptocurrency taxation? I appreciate your expertise in this area and look forward to your guidance.