#CryptoFees101
**Crypto transaction fees (like "gas" on Ethereum or "network fees" elsewhere) are payments required to process actions on a blockchain.** They serve two main purposes:
1. **Incentivize Validators:** Miners or validators earn these fees for securing the network and processing your transaction.
2. **Prevent Spam:** Fees deter users from flooding the network with meaningless transactions.
**Key things to know:**
* **Variable Cost:** Fees fluctuate based on network congestion (demand) and transaction complexity/size. Busier networks = higher fees.
* **Not Avoidable:** Sending crypto always incurs a fee paid in the network's native token (e.g., ETH for Ethereum).
* **Set by User:** Wallets often let you choose speed (priority) vs. cost.
* **Destination Matters:** Fees are paid to the network, *not* the recipient. Always check estimated fees before confirming!
Understanding fees is crucial for efficient crypto use.