This guide explains when to accelerate a stuck transaction and how to do it in Edge for Ethereum and EVM chains (Arbitrum, Base, BNB Smart Chain, Pol, Avalanche-C, etc.).
What “accelerate” actually does
Every account uses a nonce (0,1,2…). The oldest pending nonce must confirm before any newer transaction can confirm.
Accelerate (Speed Up) = send the same transaction again with the same nonce but higher gas so miners/validators prefer it.
When should you accelerate?
A send/contract call shows Pending far longer than typical blocks (e.g., >5–10 minutes on ETH mainnet).
You chose low fees or network congestion spiked after you sent.
A stuck older nonce is blocking newer transactions.
Don’t accelerate if:
The transaction is already confirmed (cannot be changed).
You don’t have enough native coin (ETH / MATIC / BNB, etc.) to pay the higher fee.
The network explorer shows the tx in a very recent block (just wait for confirmations/propagation).
How to accelerate in Edge
After sending on Edge → Tap Assets → Tap Desired Wallet → Tap the pending transaction in your recent transaction history.
Tap "Accelerate this transaction".
Confirm and and slide to submit.
How to check current fees
Gas Tracker https://etherscan.io/gastracker
Network notes (EVM chains)
ETH mainnet: EIP-1559 required. Congestion varies widely—use higher buffers during NFT mints/airdrops/major events.
Layer-2s (Arbitrum/Optimism/Base): Fees are low but spikes happen; the same replacement rules apply.
Polygon/BNB/Avalanche/Fantom: Some RPCs are strict about the minimum bump—if you get “underpriced,” increase both tip and max fee more.
Troubleshooting
Still pending after speed-up:
The tx might already be in a block that your app hasn’t shown yet → check on a block explorer by hash.
Newer txs won’t confirm:
An older nonce is stuck → you must speed up the oldest pending tx first.
Insufficient funds for gas:
Receive/exchange/buy a small amount of the native coin to cover the higher fee, then retry.
Token transfers/approvals:
Remember: fees are always in the chain’s native coin (not the token you’re sending).
FAQs
Does accelerating cost extra?
Yes. You pay the fee for whichever replacement transaction confirms (the others get dropped).
Can I accelerate multiple times?
Yes, but only the highest-fee replacement is likely to win. Each attempt risks paying more—choose a meaningful bump instead of many tiny ones.
Will cancel always work?
Only if the cancel confirms before the original. If the original confirms first, the cancel is dropped.
What if I can’t find Speed Up/Cancel?
Edge exposes these actions on pending tx detail screens. If you don’t see them, the tx may already be confirmed or the network/RPC doesn’t allow replacement of that tx type.
Best practices
Set fees based on current network conditions; avoid the “Low” preset when time-sensitive.
Keep a small buffer of the native gas token in your wallet.
For power users: monitor your account nonce and mempool status on a block explorer.
If you hit a wall, share your transaction hash and the chain with Support—our team can confirm status, advise exact fee targets, and help you clear a stuck nonce safely.