Transaction Fees

What is the fee charged for sending funds?

You only have to pay a network (blockchain) fee for the transfer, which miners or validators receive as compensation for processing the transaction. No additional commission is charged when sending funds from your Tangem Wallet.

The specific commission amount depends on the network used; for instance, the Bitcoin network will have a different fee compared to the Bitcoin Cash, Ethereum, or Litecoin networks.

This fee may fluctuate based on market demand and current network capacity. You can find the fee amount indicated on the Send page. Enter the recipient's address and amount to view the network fee.

How can I pay network fees without native coins?

Smart Gas lets you pay network fees with a supported token instead of the network’s native coin. Availability depends on the network, token, and transaction type.

Smart Gas lets you pay network fees with a supported token instead of the network’s native coin. Availability depends on the network, token, and transaction type.

How to use Smart Gas

  1. Prepare your Send, Swap, or Send via Swap transaction.
  2. Check the Network fee line. If you don’t have enough native coins, the app may automatically select a supported token to pay the fee.
  3. If multiple fee payment options are available, you can change the selected currency.
  4. Review the fee amount and confirm the transaction.

Make sure you have enough of the selected token to cover the fee. If no supported token is available to pay the fee, you’ll need to add the network’s native coin to your wallet.

How the fee is paid

The network fee is paid in the native coin on your behalf. An equivalent amount is deducted from your balance in the selected fee payment token.

The conversion rate is calculated automatically using data from CoinGecko with no markup. You can review the fee in the app before confirming the transaction.

From the user’s perspective, this all happens automatically — no manual swaps or extra steps are required.

Supported transaction types

Smart Gas supports Send, Swap, and Send via Swap, subject to network and token availability.

Supported networks & fee payment tokens

The table below lists the tokens that can be used to pay fees for supported transactions on each network. Token links open their contract details in the blockchain explorer.

NetworkFee payment tokens
EthereumUSDC, USDT, LINK, ONDO, SHIB, WLFI, PEPE, QNT, XAUT
BNB Smart ChainUSDC, BSC-USD, XRP, ASTER, ZEC, VELO
PolygonUSDC, USDT0, USDC.E, NAKA, TEL
Arbitrum OneUSDC, USDT0, ARB, XAI, ZRO
BaseUSDC, USDT, BRETT, AERO, TOSHI, KTA, VIRTUAL
TronUSDT

Using Smart Gas on TRON

On TRON, Smart Gas is available for Send and for Swap through CEX providers, with the fee paid in USDT.  Swap via DEX providers and Send via Swap still require TRX.

A new TRON address must be activated before it can send its first transaction. If your address has never received TRX, Tangem activates it automatically during your first Smart Gas transaction.

The activation cost is added to that transaction’s network fee. You can review the total fee before confirming.

Activation happens only once per address, so subsequent transactions do not include this activation cost. If activation fails, the transaction is not sent.

Security audit

The feature is powered by a smart contract that has passed an independent security audit by Pessimistic, a well-known blockchain security firm. You can review the audit report here: Tangem Gassless Transactions Security Analysis by Pessimistic.

What should I do if there are insufficient funds for paying network fees in my wallet?

When transferring tokens on a blockchain, network fees are usually charged in the network’s native coin, not in the token you are sending.

For example:

  • On BNB Smart Chain, fees are paid in BNB.
  • On TRON, fees are paid in TRX.
  • On Ethereum, fees are paid in ETH.

In some supported networks, Tangem Wallet also allows you to pay network fees using supported fee payment tokens instead of the native coin. This option is available only in specific networks and will be shown automatically if supported for your transaction.

If you don’t have enough native coins or eligible tokens to cover the fee, you’ll need to top up your balance before completing the transaction.

What does "Fee exceeds balance" mean?

Fees exceed balance means that you don’t have enough funds to cover the network fee for the transaction.

By default, network fees are charged in the native coin of the network. For example:

  • BNB for BNB Smart Chain
  • TRX for TRON
  • ETH for Ethereum

In some supported networks, Tangem Wallet also allows you to pay network fees using supported fee payment tokens instead of the native coin. This option is available only in specific networks and will be shown automatically if supported for your transaction.

If you don’t have enough native coins or eligible tokens to cover the fee, you’ll need to top up your balance before completing the transaction.

How do I choose a network fee?

The network fee determines the priority of your transfer in the queue of unconfirmed transactions. Miners prioritize transactions with higher fees to include them in the block first, resulting in faster processing. If speed is not a priority, you can set a lower fee to save money.

Tangem offers three fee levels based on the current network load: Slow, Market, and Fast. Alternatively, you can set your own network fee for your transaction.

In some supported networks, you can additionally choose the currency used to pay the fee (native coin or supported fee payment tokens instead of the native coin). The app automatically shows only the options available for your balance and the selected network.

The app calculates the fee based on network load, transaction volume, and execution priority. If you choose to set the fee yourself, make sure it's sufficient for confirmation; a low fee may hinder the transaction from being confirmed.

You can find more information about network commissions in our blog post: What is a Transaction Fee in Crypto and How is it Calculated.

How are fees charged on the Arbitrum network?

Arbitrum One (ETH) is the native coin of Ethereum on the Arbitrum network. When you conduct transactions on the Arbitrum network, fees are charged in Arbitrum One (ETH) instead of the specific token being transferred.

To add funds to your Arbitrum One (ETH) wallet, you can buy ETH on an exchange and then transfer the tokens to your wallet on the Arbitrum network.

How are fees charged on the Base network?

Base (ETH) is Ethereum on the Base network and serves as its native coin. When you conduct transactions on the Base network, fees are charged in Base (ETH) instead of the specific token you are transferring.

To replenish your Base (ETH) wallet, you can purchase ETH from an exchange and then transfer the tokens to your wallet on the Base network.

How are fees charged on the Optimistic Ethereum network?

Optimistic Ethereum (ETH) refers to Ethereum on the Optimistic Ethereum network, which is its native coin. When you conduct transactions on the Optimistic Ethereum network, fees are charged in Optimistic Ethereum (ETH) instead of the specific token you are transferring.

To add funds to your Optimistic Ethereum (ETH) wallet, you can buy ETH from an exchange and then transfer the tokens to your wallet on the Optimistic Ethereum network.

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