How to Cancel or Replace a Pending Ethereum Transaction

If you’ve used the Ethereum network before, you’ve likely experienced a transaction that takes longer than usual to confirm. This happens because of the way the miners prioritize transactions – users who offer higher fees get priority.

If your Ethereum transaction is stuck because the gas fees are low, you will need to wait until the fees drop and miners finally process your transaction. However, you also have the option to replace the pending transaction with a new one that has a higher gas price. Sounds complicated? It’s easier than you might think. And it works with ether (ETH) and all ERC20 tokens.

Introduction

First of all, keep in mind that you cannot replace, revert or cancel transactions that have already been confirmed. However, during periods of network congestion, some cryptocurrency transactions may get stuck. When the volume of transactions is too high, you could find yourself with a transaction pending for hours or even days.

Sometimes, the blockages will clear on their own – either because the pending transaction failed or because the gas fees decreased. While you can’t literally cancel an Ethereum transaction, there are some steps you can take to speed up the process. In fact, it consists of replacing a pending transaction with a new one that pays higher fees.

In this guide, we will show you how to speed up transactions using MetaMask or Trust Wallet. You could also use other crypto wallets that support the Ethereum blockchain, but the process might be slightly different.

Requirements

  • MetaMask or Trust Wallet installed.
  • Private keys (seed phrase) to log in to your Ethereum wallet.
  • Internet access.

Why is my Ethereum transaction stuck?

Ethereum works with a bidding system for your transaction fees. Your fee will depend on the complexity of your transaction (i.e., how much computational work it needs). In this context, there are three important terms you should know: gas cost, gas price, and gas limit.

The computational tasks of a transaction are measured in terms of gas cost, while the price paid for each unit of gas is what we call gas price. You can think of the gas cost as the amount of work required and the gas price as the price paid for each “hour of work.” Finally, the gas limit is the maximum amount you are willing to pay for a transaction.

While the gas cost is defined by the complexity of your transaction, you are free to set your own gas price and gas limit. The total fee paid will then act as an incentive for miners. However, if your gas price is too low, you may be outbid by other users, leaving your transaction pending. If a transaction is stuck, Ethereum will not confirm any new transactions you make from the same wallet address until a miner confirms the first transaction.

How to speed up a transaction on MetaMask

1. Log in to your MetaMask wallet that has the pending transaction. If it’s an external wallet, you need to import the address using the corresponding seed phrase or private key.

cancel-eth-tx-img1

2. Find the pending transaction under the [Activity] tab and click on [Speed Up].

cancel-eth-tx-img2

3. This process will allow you to broadcast your transaction again. Make sure to use a higher gas price by clicking on [Fast] and then [Save].

cancel-eth-tx-img3

4. If the previous step didn’t work, you could also go to the [Advanced] tab to set the gas price manually. You can check the current gas prices and average confirmation time on Etherscan or EthGasStation.

How to replace a transaction on MetaMask

1. Log in to your MetaMask wallet that has the pending transaction. Again, if it’s an external wallet, you need to import the address using the corresponding seed phrase or private key.

cancel-eth-tx-img4

2. Find the pending transaction under the [Activity] tab. Click on it to check the details and write down the [Nonce] value.

Note: If you have multiple pending transactions, you need to start with the oldest first (lowest nonce value).

cancel-eth-tx-img5

3. Next, go to MetaMask [Settings] and click on [Advanced].

cancel-eth-tx-img6

4. Scroll down and turn [Customize transaction nonce] on.

cancel-eth-tx-img7

5. Go back and click on your wallet address to copy it to your clipboard.

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How to Cancel or Replace a Pending Ethereum Transaction

Posted by staff on July 20, 2021

Ethereum Insights & Tutorials


How to Cancel or Replace a Pending Ethereum Transaction

If you’ve used the Ethereum network before, you’ve likely experienced a transaction that takes longer than usual to confirm. This happens because of the way the miners prioritize transactions – users who offer higher fees get priority.

If your Ethereum transaction is stuck because the gas fees are low, you will need to wait until the fees drop and miners finally process your transaction. However, you also have the option to replace the pending transaction with a new one that has a higher gas price. Sounds complicated? It’s easier than you might think. And it works with ether (ETH) and all ERC20 tokens.

Introduction

First of all, keep in mind that you cannot replace, revert or cancel transactions that have already been confirmed. However, during periods of network congestion, some cryptocurrency transactions may get stuck. When the volume of transactions is too high, you could find yourself with a transaction pending for hours or even days.

Sometimes, the blockages will clear on their own – either because the pending transaction failed or because the gas fees decreased. While you can’t literally cancel an Ethereum transaction, there are some steps you can take to speed up the process. In fact, it consists of replacing a pending transaction with a new one that pays higher fees.

In this guide, we will show you how to speed up transactions using MetaMask or Trust Wallet. You could also use other crypto wallets that support the Ethereum blockchain, but the process might be slightly different.

Requirements

  • MetaMask or Trust Wallet installed.
  • Private keys (seed phrase) to log in to your Ethereum wallet.
  • Internet access.

Why is my Ethereum transaction stuck?

Ethereum works with a bidding system for your transaction fees. Your fee will depend on the complexity of your transaction (i.e., how much computational work it needs). In this context, there are three important terms you should know: gas cost, gas price, and gas limit.

The computational tasks of a transaction are measured in terms of gas cost, while the price paid for each unit of gas is what we call gas price. You can think of the gas cost as the amount of work required and the gas price as the price paid for each “hour of work.” Finally, the gas limit is the maximum amount you are willing to pay for a transaction.

While the gas cost is defined by the complexity of your transaction, you are free to set your own gas price and gas limit. The total fee paid will then act as an incentive for miners. However, if your gas price is too low, you may be outbid by other users, leaving your transaction pending. If a transaction is stuck, Ethereum will not confirm any new transactions you make from the same wallet address until a miner confirms the first transaction.

How to speed up a transaction on MetaMask

1. Log in to your MetaMask wallet that has the pending transaction. If it’s an external wallet, you need to import the address using the corresponding seed phrase or private key.

cancel-eth-tx-img1

2. Find the pending transaction under the [Activity] tab and click on [Speed Up].

cancel-eth-tx-img2

3. This process will allow you to broadcast your transaction again. Make sure to use a higher gas price by clicking on [Fast] and then [Save].

cancel-eth-tx-img3

4. If the previous step didn’t work, you could also go to the [Advanced] tab to set the gas price manually. You can check the current gas prices and average confirmation time on Etherscan or EthGasStation.

How to replace a transaction on MetaMask

1. Log in to your MetaMask wallet that has the pending transaction. Again, if it’s an external wallet, you need to import the address using the corresponding seed phrase or private key.

cancel-eth-tx-img4

2. Find the pending transaction under the [Activity] tab. Click on it to check the details and write down the [Nonce] value.

Note: If you have multiple pending transactions, you need to start with the oldest first (lowest nonce value).

cancel-eth-tx-img5

3. Next, go to MetaMask [Settings] and click on [Advanced].

cancel-eth-tx-img6

4. Scroll down and turn [Customize transaction nonce] on.

cancel-eth-tx-img7

5. Go back and click on your wallet address to copy it to your clipboard.

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