Transaction fees on Solana are small amounts of SOL paid to the network's validators for processing and confirming transactions. Solana transaction fees are extremely low compared to most other blockchains — typically less than $0.001 per transaction.

Solana uses a fee market where base fees are fixed and priority fees can be added to increase the likelihood of faster transaction processing during periods of network congestion. Most standard DeFi transactions on Solana cost between 0.000005 and 0.001 SOL.

In addition to standard network fees, DeFi protocols may charge their own platform fees on top. These protocol fees are separate from the network transaction fee.