Understanding the structure of fees in cryptocurrency is an important element of savvy trading and investing. Fees come in several types: trading fees (when buying/selling on an exchange), withdrawal fees, network fees (for example, for transactions in Ethereum or Bitcoin), as well as hidden spreads, especially when using P2P or swap services. Some exchanges offer a tiered system: the higher the trading volume, the lower the fee. You can also save by paying fees in the exchange's native coin (for example, $BNB on Binance). Meanwhile, DeFi services often have dynamic fees that depend on network load. It is important to remember that high fees can eat into a significant portion of profits during active trading. Therefore, before each trade, it is worth considering not only the asset price but also all associated costs. This helps avoid unexpected losses and increases the overall effectiveness of the strategy.