UTXO - Minimum Relay Fee

In UTXO chains (like Bitcoin), the minimum relay fee is the lowest fee per kilobyte (KB) that a node will accept to propagate a transaction across the network.

When a transaction is rejected due to being below the minimum relay fee, it will fail to broadcast across the network. To resolve this, you will need to resubmit the transaction with a higher fee that meets or exceeds the minimum relay fee. This ensures that the transaction can be propagated and eventually included in a block.

Common Relay Fees for UTXO-Based Blockchains

The following table shows the typical relay fees for various UTXO-based blockchains:

BlockchainRelay FeeUnit
Bitcoin (BTC)0.00001BTC (10 satoshis/byte)
Litecoin (LTC)0.00001LTC (10 litoshis/byte)
Bitcoin Cash (BCH)0.00001BCH (10 satoshis/byte)
Dash (DASH)0.00001DASH (10 duffs/byte)
Zcash (ZEC)0.00001ZEC (10 zatoshis/byte)
Dogecoin (DOGE)0.001DOGE (default)

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Chains without Relay Fee

Chains that do not rely on the UTXO model, such as Ethereum (ETH) and most other smart contract platforms, do not have a "relay fee." They use an account-based model and operate with a gas system to prevent spam and allocate computational resources.