Will Glamsterdam Reduce Ethereum L1 Fees?
Published 6/17/2026, 7:13:36 PM
Yes, but through structural capacity increases and repricing rather than direct fee cuts. The primary fee reductions come from an intrinsic gas repricing (EIP-2780) and a tripling of the per-block gas limit (60M → 200M), with secondary MEV market changes. The overall impact depends heavily on demand levels.
Fee-Reduction Mechanisms
| Mechanism | Effect | Evidence |
|---|---|---|
| EIP-2780 — Reduced intrinsic gas | ETH transfers drop from 21,000 to ~6,000 gas (~71% cost reduction) | Ethereum.org/Glamsterdam |
| EIP-7904 — State access repricing | Up to 78.6% reduction in L1 gas costs for basic interactions | Multiple analyst sources (BingX, Phemex) |
| Gas limit increase — 60M → 200M | 3.3× more transaction capacity per block; distributes base fee pressure across more transactions | Ethereum.org/Glamsterdam |
| Block-level access lists (EIP-7928) | Enables parallel transaction verification; unlocks multi-core CPU usage, breaking the sequential bottleneck and increasing effective throughput | Ethereum.org/Glamsterdam documentation |
| 9-second propagation window | Allows larger payloads without network stress, reducing fee spikes during congestion | Ethereum Foundation specifications |
Transaction-Type Impact Summary
| Transaction Type | Expected Reduction |
|---|---|
| Simple ETH transfer | ~71% (EIP-2780) |
| Basic smart contract interactions | up to 78.6% (EIP-7904 repricing) |
| State-heavy DeFi operations | Mixed (repricing may increase some state-access costs) |
| Contract deployment | Variable (size-based pricing increases) |
MEV Changes: Fee Impact Is Contested
The ePBS (Encrypted Proposer-Builder Separation, EIP-7732) moves block building on-chain at the protocol level — eliminating the trust dependency on off-chain relays. However, the fee-reduction claim from MEV changes has low confidence:
- On one side: ePBS could reduce competitive MEV bidding pressure if builder markets become more transparent and less fragmented. The Payload Timeliness Committee (PTC) enforces builder payload delivery cryptographically, reducing latency-driven rent-seeking.
- Academic counterpoint: A January 2026 paper found ePBS may actually "significantly amplify profit and content centralization" among builders, because private order flow still confers structural advantages and sophisticated infrastructure favors large-scale operations. [Source: arxiv:2601.12989]
Bottom line on MEV: ePBS primarily improves censorship resistance and fairness — not necessarily fees. The on-chain builder market may not reduce extraction; it changes who controls it.
What Glamsterdam Will NOT Do
- Not a direct fee reduction mechanism like EIP-1559 (which burns base fees)
- Not a cure for congestion if L1 demand scales with the new capacity
- Not an L2-focused upgrade — blob scaling (PeerDAS, 48 blobs) was already addressed in Fusaka
- Does not eliminate MEV — only migrates it on-chain
Timeline
Mainnet target: Q3 2026 (end of August), delayed from the original H1 2026 goal. The primary delay risk is ePBS cross-client implementation parity. Public testnets (Sepolia, Hoodi) are forthcoming.
Conclusion
Glamsterdam will reduce L1 fees for users — particularly for simple ETH transfers (~71% cheaper) and basic contract interactions (~78.6% cheaper) — primarily via EIP-2780's intrinsic gas repricing and the 60M → 200M gas limit increase. The MEV changes (ePBS) improve protocol-level fairness and censorship resistance but are not a reliable fee-reduction mechanism and may increase centralization among sophisticated builders. Fee reductions are demand-dependent: if L1 usage scales with capacity, base fees may remain elevated even with higher per-block limits.
Next steps
- If you want to model gas cost scenarios across transaction types, I can run a gas cost comparison using current network data versus projected post-Glamsterdam parameters.
- If you're tracking Ethereum's execution layer evolution, I can set up a recurring brief on Glamsterdam implementation milestones.