Ethereum Proposes EIP-8361 to Burn Staking Rewards at 50% Saturation
In brief
- EIP-8361 burns validator rewards progressively, reaching zero yield at 60.25M ETH (50% supply)
- Staking currently represents 33% of ETH supply with 2.6% annual yield
- 18-month phase-in avoids abrupt cut from 2.6% to 1.2% annual yield
- Lido staking chief warns proposal is too theoretical and risks 50% equilibrium trap
- Validator entry queue saturated at maximum churn, raising proposal urgency
The Mechanism and Timeline
EIP-8361 sets a fixed saturation balance of 60.25 million ETH, roughly half the supply at the time of the fork. At that threshold, a validator performing its duties perfectly earns zero net consensus yield.
The burn doesn't activate all at once. If imposed at once, the burn would cut staking yield to 1.2%, so it phases in over an 18-month transition. The transition temporarily doubles the base reward factor before decaying it back, which with fork lead time gives about two years to adjust. Issuance would peak near a 20% ratio at about 0.5% of supply a year, then fall to zero at 50%.
Currently, Ethereum's staking ratio passed a third of supply in April. Around 33% of ETH is staked now, paying roughly 2.6%.
Why the Urgency
The validator entry queue is saturated at maximum churn, according to the proposal's co-author Jérôme de Tychey. This constraint limits how fast new validators can join the network. A worst case scenario built on conservative assumptions puts more than 70 million ETH at stake by January 2028, north of 55% of supply.
The proposal's authors argue that without this burn mechanism, staking could spiral past the saturation point, concentrating validator power and degrading Ethereum's security assumptions.
The Dissent
Not everyone agrees. Isidoros Passadis, Chief of Staking at Lido, argued the proposal attempts too much at once, that its supporting research is "too theoretical," and that it "lays Ethereum's hard-fought uniqueness at the sacrificial altar of ETH as money." Passadis warned the curve could produce a sustained equilibrium near 50% staked with zero nominal yield.
On implementation, the bar is low. The change touches only the consensus layer, and Prysm has a draft implementation running to about 300 lines. Under the current curve, yield falls only with the square root of the staking ratio and keeps a floor near 1.5% however much ETH is staked.
