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Transaction Problems
How to Fix Replacement Transaction Underpriced
Learn why replacement transaction underpriced appears when speeding up or cancelling a transaction.
Quick answer
What this usually means
Replacement transaction underpriced means the new transaction did not offer a high enough fee increase to replace the old pending transaction.
Common causes
Why it happens
- The replacement fee was not high enough.
- The original transaction is still pending.
- The wallet tried to use the same nonce with a small fee bump.
- The RPC endpoint rejected the replacement policy.
Fix path
What to check first
- Confirm the original transaction is still pending.
- Use a higher priority fee or gas price according to wallet guidance.
- Wait briefly and retry if the network is unstable.
- Avoid sending unrelated transactions with the same nonce.
- Check the explorer after replacement.
Safety note
Do not make the problem worse
- Replacement attempts cost gas only if confirmed.
- Do not overpay dramatically unless the transaction is urgent.
- Avoid third-party repair tools.