What are gas fees in Trust Wallet?

Gas fees in Trust Wallet are paid in the native cryptocurrency of each blockchain—like ETH for Ethereum or BNB for BNB Smart Chain—and cover the cost of processing transactions.

Aug 04, 2025 at 06:14 am

Understanding Gas Fees in Trust Wallet

Gas fees in Trust Wallet refer to the transaction costs required to execute operations on a blockchain network. These fees are paid in the native cryptocurrency of the blockchain being used. For example, when sending Ethereum (ETH) or interacting with a decentralized application (dApp) on the Ethereum network, you must pay gas fees in ETH. Similarly, transactions on the BNB Smart Chain require BNB as the gas token. Trust Wallet itself does not set these fees; instead, it interfaces with the underlying blockchain networks, which determine the cost based on network congestion and transaction complexity.

The purpose of gas fees is to compensate miners or validators for processing and validating transactions. Every action on a blockchain—such as transferring tokens, swapping assets via a decentralized exchange, or minting an NFT—consumes computational resources. The more complex the operation, the higher the gas fee. Trust Wallet displays the estimated gas cost before confirming any transaction, allowing users to review and adjust settings if needed.

How Gas Fees Are Calculated

Gas fees are calculated using two main components: gas price and gas limit. The gas price is the amount of cryptocurrency you are willing to pay per unit of gas, typically measured in gwei for Ethereum (1 gwei = 0.000000001 ETH). The gas limit is the maximum amount of gas you are willing to spend on a transaction. The total fee is derived from:

• gas price × gas used

For example, if the gas price is 20 gwei and the transaction uses 21,000 units of gas, the total fee is 0.00042 ETH. Trust Wallet automatically estimates these values based on current network conditions, but advanced users can manually adjust them in the transaction settings.

Network congestion plays a significant role in determining gas prices. During peak usage, such as when a popular NFT minting event occurs, demand for block space increases, driving up gas prices. Trust Wallet pulls real-time data from the blockchain to provide accurate fee estimates, helping users avoid underpaying (which could result in delayed or failed transactions).

Viewing and Adjusting Gas Fees in Trust Wallet

When initiating a transaction in Trust Wallet, users have the option to view and modify gas settings. This is particularly useful for those who want to balance cost and speed. To access these settings:

• Open Trust Wallet and select the wallet for the blockchain you're using (e.g., Ethereum or BNB Smart Chain)
• Tap on the token you wish to send or interact with
• Enter the recipient address and amount
• Before confirming, tap on the "Network Fee" or "Advanced Options" section
• Here, you can adjust the gas price and gas limit

Trust Wallet provides three preset options: Low, Medium, and High. Choosing Low results in lower fees but potentially slower confirmation times. High prioritizes speed with a higher fee. Manually increasing the gas price can expedite transaction processing during busy periods.

It is crucial to ensure the gas limit is sufficient. If set too low, the transaction may fail, and the gas fee will still be charged since the network consumed resources. For standard token transfers, the default gas limit of 21,000 is usually adequate. However, interactions with smart contracts (like swaps or approvals) may require higher limits, which Trust Wallet typically calculates automatically.

Paying Gas Fees on Different Blockchains

Trust Wallet supports multiple blockchains, each with its own gas token. Understanding which cryptocurrency to use for gas is essential:

• On Ethereum, gas fees must be paid in ETH, even when transferring ERC-20 tokens like USDT or SHIB
• On BNB Smart Chain, BNB is required for gas, regardless of the token being moved
• On Polygon, gas fees are paid in MATIC
• On Avalanche C-Chain, AVAX is used
• On Arbitrum and Optimism, ETH is still the gas token

If you attempt to send a token without holding the native cryptocurrency for gas, the transaction will fail. For example, trying to send USDT on Ethereum without any ETH in your wallet will result in an error. Users must always maintain a small balance of the native token to cover gas fees.

Trust Wallet does not automatically convert tokens to cover gas. You must manually acquire the required gas token through swaps, transfers, or purchases within the app.

Minimizing Gas Fees in Trust Wallet

Reducing gas expenses is possible with strategic timing and settings. Consider the following:

• Perform transactions during off-peak hours when network congestion is lower
• Use the Low or Custom gas settings for non-urgent transactions
• Utilize layer-2 networks like Polygon or Arbitrum, which offer significantly lower fees than Ethereum mainnet
• Monitor gas price trends using external tools like Etherscan Gas Tracker or GasNow, then input custom values in Trust Wallet

Some decentralized exchanges accessible through Trust Wallet’s dApp browser offer fee optimization. For example, 1inch or ParaSwap may route swaps through lower-cost networks or use gas-efficient methods. Always review the final gas estimate before confirming.

Frequently Asked Questions

Why do I need ETH to send BNB in Trust Wallet if I'm on Ethereum?

If your BNB is a BEP-20 token on the Ethereum network (rather than on BNB Chain), then yes—ETH is required for gas. However, most BNB exists on BNB Chain. Ensure you’re using the correct network. If sending BEP-20 BNB on Ethereum, you must have ETH for gas. Native BNB on BNB Chain uses BNB for gas.

Can I cancel a transaction if the gas fee is too high?

Once broadcasted, you cannot cancel a blockchain transaction. However, you can attempt to replace it by sending a new transaction with the same nonce but a higher gas price, effectively overriding the original. Trust Wallet does not currently support manual nonce editing, so this requires third-party tools.

Why did my transaction fail even though I paid gas?

Transactions can fail due to insufficient gas limit, smart contract errors, or slippage in swaps. The gas fee is still charged because computational work was performed. Always double-check contract interactions and ensure adequate gas limits for complex operations.

Does Trust Wallet charge extra on top of gas fees?

No. Trust Wallet does not add any markup to gas fees. The fee you see is the exact amount sent to the blockchain network. Any additional costs come from third-party services like exchanges or bridges used within the dApp browser.