Crypto Profit Calculator

Absolutely. Both maker and taker fees, network fees, and withdrawals are costs. A 0.1% fee on both legs eats ~0.2% of gross profit. Always deduct all fees.

As capital gains in most jurisdictions. Short-term (< 1 year) often taxed as ordinary income; long-term (> 1 year) at lower capital gains rates. Some countries tax mining/staking as income. Keep detailed records.

Yes. If you buy BTC in USD and sell in EUR, you have two gains/losses: crypto-to-crypto and currency conversion. Treat each separately for tax accuracy.