Cardano proposal cuts stake pool fee floor by 55%

A new Cardano governance proposal would cut the minimum fixed fee for stake pools from 170 ADA to 75 ADA, a 55% reduction. The standalone action removes the Plutus memory-limit change that triggered a required stake pool operator ballot in the previous attempt, leaving DReps and the Constitutional Committee to decide the measure.

The proposal was submitted on Sept. 11, with voting scheduled to end in epoch 661 on Oct. 11. In a DRepTalk tally checked on Sept. 23, yes votes represented 11.7% of counted DRep stake, below the 67% threshold. Two of seven Constitutional Committee members had voted yes, or 28.6%, against a 66.7% threshold. Those figures can change before voting ends.

Why it matters

A pool's fixed cost is taken from its gross reward before margin and the remaining reward is distributed across delegated stake. In the proposal's example, a pool earning about 300 ADA from one block would lose roughly 57% to a 170 ADA fixed charge. At 75 ADA, the charge would equal 25% of that reward, leaving 95 ADA more before margin and allocation if the operator adopted the lower fee.

That benefit is not automatic. Each operator could declare 75 ADA, continue charging 170 ADA, or keep a higher fee. Delegators gain only when a pool with rewards to share actually lowers its charge. Operators, meanwhile, rely on the fixed fee for income, and small pools already face uneven block production and limited delegated stake.

Market impact

The earlier bundled action reached 68.6% support from DReps and five of seven committee members, but SPO support was 34.5%, below the required 51%. The proposal expired on Sept. 1. By removing the memory-limit component, the new action avoids that SPO ballot under Cardano's parameter rules.

Past behavior offers a mixed signal. After Cardano cut the minimum from 340 ADA to 170 ADA in October 2023, 340 ADA remained the most common declared fixed cost, while 170 ADA became a second tier used by smaller challengers. The next test is whether operators use a 75 ADA floor to attract stake without undermining their ability to remain viable.