Ethereum EIP-7981 reaches its access-list pricing review deadline

A review deadline, not an activation

Ethereum proposal EIP-7981 lists November 1, 2026 as the end date of its Last Call review phase. The document, authored by Toni Wahrstätter, still carries that status when checked. It concerns changing the pricing of access lists attached to certain transactions. It was not created today: its creation date is December 27, 2024. Sunday's development is the displayed review deadline, rather than an announcement that the change has gone live.

That distinction matters to users. A stage in an EIP's lifecycle establishes neither network adoption nor an immediate change in the amount paid for a transaction. The document states that a scheduled network upgrade would be required to apply the new pricing. This review deadline supplies no activation time. The rules actually applied by wallets and nodes therefore cannot be inferred from the discussion calendar alone.

Charging for data added to transactions

Access lists, described in EIP-2930, identify addresses and storage keys a transaction expects to access. That preparation contributes to the calculation of resource-access costs. However, a list also occupies bytes in the transaction. EIP-7981 argues that this footprint can be insufficiently priced, allowing part of the data-pricing floor introduced by EIP-7623 to be bypassed. The issue described concerns block size in particular worst-case scenarios.

The proposed mechanism adds a surcharge of 64 gas per access-list byte. An address takes twenty bytes, adding 1,280 gas; a storage key takes thirty-two bytes, adding 2,048 gas. These amounts are added to the existing calculation rather than replacing the base charges of 2,400 gas per address and 1,900 per key. Gas measures a computational or data resource; it is not a fixed price in euros.

Reducing the worst case without promising universal savings

The author estimates that the measure would reduce maximum block size by around 21% in the scenario examined. This is neither a measured reduction in every block's size nor a savings promise for all transactions. The proposal works alongside EIP-7976, which proposes a higher calldata floor and is also in Last Call with a displayed November 1 deadline. The two documents address different components of data volume.

For developers, eventual adoption would require updates to gas estimation in wallets and node software, among other changes. For readers, the next evidence to follow is the proposal's status, implementation decisions and a separately announced network schedule. November 1 is a milestone in the standardization process here. It does not establish that Ethereum's rules have already changed or that ordinary fees will move in a particular direction.