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Sometimes. If a transaction is still unconfirmed, a wallet may be able to replace it with another transaction that is more likely to be processed—or, in some cases, one that sends the funds back to an address you control. Ethereum-style wallets generally use the same account nonce for the replacement; Bitcoin wallets may use Replace-by-Fee (RBF). Neither is a guaranteed undo button, and either method can cost an additional fee. Once the original transaction is confirmed, these replacement methods no longer apply.
First check whether the transaction is still pending
Open the sending wallet’s transaction details and check its status and network. If the status is unclear, look up the transaction hash in a blockchain explorer for that network. Wallet labels vary, but the important distinction is whether the transaction is still unconfirmed or has been included in a block. Ethereum.org’s guidance is specifically for a transaction that is stuck or pending, and MyEtherWallet distinguishes pending transactions from mined ones in its replacement guidance.
- Pending or unconfirmed: A replacement may be possible if the wallet and network support the relevant method.
- Mined or confirmed: Same-nonce Ethereum replacement and Bitcoin RBF are not ways to reverse it. They do not retrieve funds sent to the wrong address after confirmation.
Do not treat a wallet’s “Cancel” button as proof that the original has already been stopped. Usually, the button submits a competing replacement; you still need to wait for that replacement to confirm and check the final status.
How the methods differ
| Network | Replacement mechanism | Important constraint | What can go wrong |
|---|---|---|---|
| Ethereum and some EVM-compatible wallet flows | Submit a replacement using the same account nonce. A speed-up repeats the intended action with a higher fee; a cancellation attempt commonly sends 0 ETH to your own address. | Pending transactions are ordered by nonce. Resolve the oldest pending nonce first; a higher nonce cannot be canceled ahead of a lower pending one in the queue. | The original can be mined first, and a replacement is not guaranteed to succeed. |
| Bitcoin | Use Replace-by-Fee (RBF) to submit a conflicting transaction that spends one or more of the same inputs. | The wallet must offer or support the process, and the replacement must satisfy node mempool policy, including fee and relay constraints. | The original can confirm before the replacement is processed; paying more does not guarantee it wins. |
The names and controls in a wallet are implementation details, not a promise that the replacement will be accepted or confirmed. The two networks use different transaction models, so do not apply Ethereum nonce instructions to Bitcoin or assume an RBF procedure works for an Ethereum transaction.
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Ethereum: speed up or attempt to cancel a pending transaction
Ethereum transactions from an account carry a nonce, a sequence number that helps order that account’s transactions. A replacement uses the same nonce as the pending transaction. If the replacement is accepted and mined, it takes the place of the pending transaction at that nonce; the original cannot also execute at that same nonce. The replacement still has to be accepted and included, so submission alone does not settle the outcome.
Use the wallet’s built-in action when available
- Open the transaction activity or details in the wallet that sent the transaction. Confirm that you are viewing the correct network and that the transaction is still pending.
- Choose the wallet’s supported Speed Up action if you want the original transfer or action to go through sooner. Review the replacement details and fee before approving it.
- Choose Cancel only if the wallet offers it for that transaction and you want to attempt to prevent the original action. A common Ethereum cancellation attempt is a 0 ETH transaction to your own address using the same nonce.
- Wait for the replacement to be mined, then check the original and replacement transaction details. Do not assume that tapping the action canceled the original instantly.
ethereum.org describes speed-up as resubmitting the same transaction with a higher gas fee and cancellation as sending 0 ETH to your own address with the same nonce. Its FAQ page was last updated June 6, 2026: ethereum.org’s stuck-or-pending transaction guidance.
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If the wallet offers custom nonce replacement
Some wallets provide a manual method to submit another transaction with the same nonce. This is an advanced option: entering the wrong nonce, changing the transaction details unintentionally, or misjudging the fee can leave you with another pending transaction rather than the outcome you want. Use your wallet’s instructions for the exact fields it exposes; do not guess at a nonce or copy settings from an unrelated transaction.
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MetaMask’s current instructions say to set the replacement’s priority fee at least 10% above the original and its max fee at least 30% above the original. Those percentages are MetaMask product guidance, not protocol-wide constants or a guarantee of confirmation. Check the wallet’s live fee estimates and the network conditions before approving a replacement. See the MetaMask instructions for speeding up or canceling a pending transaction.
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Work through pending nonces in order
If you have several pending transactions from the same Ethereum account, start with the oldest pending one—the lowest nonce in the queue. A later transaction cannot be used to clear a lower pending nonce first. After addressing the oldest transaction, check whether the next one remains pending before attempting another replacement. MetaMask and Crypto.com Onchain both document this lowest-first ordering guidance.
Wallet support can also depend on how the transaction was created. Crypto.com Onchain documents replace-by-fee for eligible ETH and ERC-20 sends initiated in its app, but says its feature is unavailable for certain smart-contract flows, including swaps and DeFi Earn deposits or withdrawals. Those are limits of that product’s feature, not a rule that applies to all wallets. Check the Crypto.com Onchain eligibility and nonce guidance if that is the wallet you used.
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Bitcoin: how RBF replacement works
Bitcoin RBF replaces an unconfirmed transaction with a conflicting one that spends one or more of the same inputs. A wallet may offer an in-app “Speed Up” or “Cancel” action, but the transaction must meet the policy applied by nodes relaying it. The replacement is not accepted merely because its fee is higher than the original.
Bitcoin Core’s current mempool replacement policy lists several requirements. Among them, the replacement must pay at least the sum of the original transactions’ absolute fees, cover incremental relay costs, stay within a bound on distinct conflicting clusters, and strictly improve the mempool feerate diagram. These requirements work together; fee adequacy is more involved than choosing a single higher number. See the Bitcoin Core mempool replacement policy.
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Use the wallet’s RBF controls
- Open the unconfirmed outgoing Bitcoin transaction in the wallet that sent it. Check whether the wallet identifies it as replaceable or provides an RBF, Speed Up, or Cancel option.
- Select the action that matches your goal. A speed-up attempts to resend the intended payment with a higher fee. A cancel action may create a replacement whose destination is an address controlled by your wallet.
- Review the replacement transaction and the total fee shown by the wallet before approving it. The replacement may require a higher fee, and its acceptance is subject to node policy.
- Wait for the replacement to confirm and verify its status. The original may confirm before the replacement request is processed.
Bitcoin.com Wallet documents in-app Speed Up and Cancel operations and warns that the original transaction can confirm before the replacement is processed. Its instructions are specific to that wallet; other wallets may expose different controls or no replacement option. See its Bitcoin transaction replacement instructions, published November 25, 2024.
Why a replacement may not work
- The original confirms first. A replacement competes with an unconfirmed transaction. A miner may include the original before the replacement is accepted or processed.
- The replacement fee or policy conditions are insufficient. On Ethereum, a replacement needs fees high enough for the wallet and network conditions. On Bitcoin, node policy includes multiple relay and mempool requirements beyond simply increasing the fee.
- A lower Ethereum nonce is still pending. A higher nonce in the same account’s queue cannot clear an earlier pending transaction first.
- The wallet does not support replacement for that transaction. Feature availability and eligible transaction types differ. Some contract interactions may not qualify for a particular wallet’s replacement feature.
- The transaction is already confirmed. Replacement guidance applies to unconfirmed transactions. It cannot undo a confirmed transfer.
Ethereum replacement is not guaranteed, and trying again may mean additional fees or confusion if the original is mined first. MyEtherWallet’s pending-versus-mined explanation covers that distinction. For Bitcoin, the race with the original is also noted in Bitcoin.com Wallet’s instructions.
What to do if the transaction is already confirmed
Do not submit a same-nonce replacement or RBF request expecting it to reverse a confirmed transaction. These mechanisms address unconfirmed transactions; they do not retrieve funds sent to the wrong destination after confirmation. Check the transaction record and the receiving address carefully. If the recipient is someone you know, contact them directly about returning the funds; a blockchain replacement cannot compel a return.
Protect your wallet while troubleshooting
A pending transaction does not require you to disclose your wallet recovery phrase. Never share a seed phrase or recovery phrase with anyone claiming they can “fix” the transaction. ethereum.org warns that legitimate services do not ask for it in its support FAQ. Keep the phrase private, and approve any replacement only in the wallet interface you opened yourself after checking its transaction details and fee.
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