- Relay operators will only pay fees for transactions that fail pre-execution checks, aligning Hedera’s model more closely with Ethereum‘s approach.
- The update requires no implementation effort from operators or users while reducing operational costs and simplifying business models.
Hedera has announced the implementation of HIP-1084, introducing a new transaction fee model that eliminates charges for successful EthereumTransactions submitted by relay operators. This change aims to align Hedera’s fee structure more closely with Ethereum’s model while maintaining network security and improving experiences for relay service providers.
Currently, relay operators like Thirdweb, Arkhia, and HGraph pay approximately $0.0001 for every EthereumTransaction they submit on behalf of users, regardless of whether the transaction succeeds or fails. While these fees seem minimal individually, they accumulate significantly for high-volume operators, forcing them to either absorb costs or develop alternative fee structures.
Zero-Cost Model for Successful Transactions
Under the new model, relay operators will only be charged for transactions that fail due diligence checks. Successful transactions and even those that result in contract reverts will incur no operator fees, though end users will continue to pay standard gas fees. The fee exemption applies to several common transaction scenarios, including successful contract executions, contract calls that revert, and successful HBAR transfers.
“This change follows a practical design philosophy where fees apply only when serving a purpose,” according to the documentation. Relay operators can now design services with greater flexibility while preserving Hedera’s performance advantages, knowing successful operations carry no network overhead.
Security Protections Remain in Place
To maintain network security, fees will still apply in specific situations where transactions fail pre-execution checks. These chargeable scenarios include malformed transactions, invalid signatures, insufficient user funds, and invalid nonce values. By maintaining fees for these edge cases, Hedera preserves essential network protections while removing costs from legitimate operations.
The update offers several advantages, including reduced operational costs for relay operators, simplified business models for relay services, greater alignment with Ethereum’s fee structure, and zero implementation effort required from operators or users. This seamless transition maintains all existing security measures while optimizing cost structures.
For developers and operators interested in learning more, Hedera has provided comprehensive resources including the HIP-1084 Documentation, JSON-RPC Relay Documentation, and access to the Hedera Developer Playground for testing and implementation.
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