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Fee Structure

Each transaction on Tezos X incurs three categories of fees.

Execution and storage fees​

Execution fees cover the computation cost of running a transaction. Storage fees compensate for permanent on-chain storage allocation:

Both interfaces use gas as the unit of execution:

  • In the EVM interface, gas covers both computation and storage allocation — SSTORE operations consume gas. The fee is gas_consumed × base_fee_per_gas.
  • In the Michelson interface, gas covers computation, while storage allocation is charged separately as a burn at a fixed rate per byte allocated: fee = gas_consumed × base_fee_per_gas + bytes_allocated × cost_per_byte.

base_fee_per_gas is determined by the Tezos X kernel at the start of each block and adjusts dynamically based on network load.

Execution and storage fees are burnt.

Data availability (DA) fees​

DA fees cover the cost of publishing blueprints to Tezos Layer 1. All runtimes charge the same cost per byte for DA, based on transaction size.

From the Michelson interface's point of view, DA fees are burnt. At the Tezos X block level, the equivalent amount is credited to the sequencer pool address on the EVM interface, ensuring the sequencer is compensated regardless of which interface originated the transaction.

Minimal fee​

Each runtime may also apply a minimum fee per transaction, which is burnt.