A trading fee is a charge applied by a crypto exchange when a trading operation is executed. It is commonly calculated as a percentage of the trade value, although the exact fee model varies by platform.

The fee may depend on the trading product, user volume, account tier, order type, and execution role. Exchange fee structures commonly distinguish between maker fees and taker fees.

Trading fees directly affect the outcome of crypto trading. For frequent trading, even a small percentage can become a significant cumulative cost when combined with spread and slippage.