Fees and gas

Fee model#

• EIP-1559 is active. The base fee started at 1 gwei at genesis and, with mostly empty blocks, decayed to the protocol floor of 7 wei.
• The base fee rises by up to 12.5% per block when blocks use more than half of the 50,000,000 gas limit, and falls the same way when they use less.
• eth_gasPrice tracks the base fee (7 wei at idle). On 2026-09-27, eth_maxPriorityFeePerGas suggested 1 wei.
• Transactions with a zero priority fee are accepted. Any tip you add goes to the validator.
• There is no block reward; the native supply is fixed at genesis.

Recommended settings#

Set maxFeePerGas comfortably above the base fee (twice the base fee handles sudden load), and a small or zero maxPriorityFeePerGas. Wallet and library defaults (for example a 1 gwei tip) also work and still cost almost nothing.

const block = await publicClient.getBlock();
const hash = await walletClient.sendTransaction({
  account, to, value,
  maxFeePerGas: block.baseFeePerGas! * 2n,
  maxPriorityFeePerGas: 1n,
});

Typical costs#

Approximate, in tZROAR, which has no monetary value.