Priority fee vs Slippage tolerance: what's the difference?
Two settings traders confuse — one buys speed, the other sets price tolerance.
The short version
Two settings traders confuse — one buys speed, the other sets price tolerance.
- Priority fee: Extra SOL to bid your transaction to the front during congestion.
- Slippage tolerance: The maximum price movement you accept before a swap cancels.
Side by side
| Dimension | Priority fee | Slippage tolerance |
|---|---|---|
| Buys you | Speed / inclusion | Price protection |
| Too low | Tx lags or fails | Swap reverts |
| Too high | You overpay per trade | You get a worse fill / sandwiched |
| When critical | Congestion, exits | Thin/fast pools |
Which one should you care about?
Key idea — Priority fee is for speed; slippage tolerance is for price. Tune both to conditions — they solve different problems.
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