Every action you take on the Solana blockchain — sending SOL, swapping tokens, minting NFTs — requires a small fee paid in SOL. This fee compensates validators who process and confirm your transactions, and partly funds the network's long-term sustainability through a burn mechanism.

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The Two-Part Fee Structure

Solana transaction fees consist of two components. The base fee is a fixed, mandatory charge of 0.000005 SOL (5,000 lamports) per signature. For most standard transfers, you pay exactly one base fee. Complex transactions with multiple signatures cost a multiple of this base amount.

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The second component is the priority fee (also called the prioritization fee). This is optional and allows users to jump ahead in the processing queue during high network demand — such as popular NFT drops or major DeFi events. Priority fees are calculated as: compute unit price × compute unit limit / 1,000,000, rounded up to the nearest lamport.

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Solana statically prices 5,000 lamports per signature — making it one of the most predictable and affordable fee structures in all of blockchain.

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What Is a Lamport?

A lamport is the smallest unit of SOL, equivalent to 0.000000001 SOL (one billionth of a SOL). The name honours Leslie Lamport, the computer scientist whose work underpins distributed computing. When wallets display fees in SOL, they are converting these lamport amounts automatically.

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Who Receives the Fees?

Base fees are split 50/50: half goes to the validator that processed your transaction, and half is permanently burned (removed from circulation). Priority fees go 100% to the validator. This dual mechanism ensures validators are rewarded while also applying mild deflationary pressure on the total SOL supply over time.

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Compute Units and Why They Matter

Every Solana transaction consumes a certain number of compute units (CUs) — a measure of computational work. A simple SOL transfer might use around 200 CUs. A complex DeFi swap or NFT mint can use tens of thousands. The compute unit limit per transaction is 1.4 million CUs, and each block has a total budget of 48 million CUs. These limits prevent spam and keep the network running smoothly for all users.