- Base fee: 5,000 lamports per included signature (paid by the first signer).
- Base fee split: 50% burned, 50% paid to the processing validator.
- Priority fee: optional, paid 100% to validators.
- Priority fee formula: CU limit × CU price.
- Priority ranking: (Prioritization fee + Base fee) / (1 + CU limit + Signature CUs + Write lock CUs).
- Default limits: 200,000 CUs per instruction; 1.4M CUs per transaction.
- Recommended CU limit: simulate, then add ~10% safety margin.
- Default CU price: 0 (default priority fee is 0).
Solana Transaction Fee Topics
Use the guides below to understand base fees, priority fees, and compute pricing.
