Solana Formal Vote on SIMD-0553 and SIMD-0550 Has 10 Days Left

The formal governance vote on two companion Solana SOL$111.26+1.8% Solana tokenomics proposals is now underway, with validators having until August 18 to cast their ballots. Both proposals target different levers of SOL SOL supply: one rewires the fee structure to burn more of every transaction, the other accelerates how fast new issuance shrinks.

Helius hSOL$132.65+1.5% Helius validators supplied the staked weight that pushed the first proposal past the 15% signaling threshold on August 5, triggering an 11-epoch formal voting window. Ten days remain.

SIMD-0553: From a Flat 5,000-Lamport Fee to Compute-Priced Burns

SIMD-0553, authored by Cavey of the Temporal research team, replaces Solana's flat 5,000-lamport per-signature transaction fee with a two-part structure. Every transaction pays a 2,500-lamport inclusion fee to the block leader, and a separate resource fee calculated on compute units requested, with the resource fee burned in full rather than distributed to validators.

The resource fee ramps through three feature gates before reaching its terminal rate of 0.5 lamports per compute unit, planned for the Solana 4.3 release. At current transaction volumes, Temporal estimates the terminal rate produces daily burns of 7,500 to 9,000 SOL, against approximately 648 SOL per day today — roughly 13 times current levels.

The mechanism prices transactions on compute units requested rather than consumed. That is a deliberate design choice: Solana's asynchronous execution model makes post-execution fee adjustment impractical, so the proposal prices the scheduler's pre-execution resource claim instead. The practical effect varies by transaction type. Oracle updates become 16.9% cheaper; vote transactions drop 12.3%. Compute-intensive swap transactions rise significantly in absolute terms, though the dollar amounts remain small at current SOL prices.

Across August 2–7, Solana collected between 6,400 and 9,600 SOL per day in combined fees and Jito tips, per Solana Compass analytics. Base fees (the component SIMD-0553 addresses) were the smallest of the three revenue streams, sitting well below the priority fees and Jito tips that flow to validators and block proposers.

SIMD-0550: Doubling the Disinflation Rate to Reach 1.5% by 2029

The companion proposal targets Solana's inflation schedule rather than fees. Under the current schedule, annual inflation falls by 15% each year, on a path to reach the 1.5% terminal rate in 2032. SIMD-0550 would double that annual reduction to 30%, arriving at 1.5% three years earlier, in 2029.

According to CryptoBriefing, the accelerated schedule removes approximately 18.9 million fewer SOL in emissions over the first six years compared to current projections. Staking yields would start around 5.84% and decline to approximately 2.25% after three years as the emission schedule contracts. Solana's current inflation rate stands at approximately 3.8%, down from 8% at launch as the 15% annual cuts have taken effect, per CoinDesk.

Combined Net Supply Growth Drops Below 1.5% by 2029

The two proposals are designed to reinforce each other. SIMD-0553 burns fees that currently split between block leaders and a small base burn; SIMD-0550 reduces the emission side. Temporal's analysis of their combined effect finds that together they reduce net annual supply growth to approximately 1.05% by 2029, below Solana's own stated 1.5% terminal target, even before any further growth in transaction activity.

That the combination undershoots the 1.5% target reflects the design logic. Fee burns respond to network activity and will fluctuate; emission reductions operate on a fixed schedule. The two levers offset each other's uncertainty, and rising activity would push the actual burn rate higher than the terminal-rate estimate.

Helius, Blueshift, and Temporal Emerald Lead Formal Validator Backing

As of August 4, CoinDesk reported 16 validators had backed the proposals with 24.94 million SOL (5.8% of the 432.65 million SOL currently staked). Helius validators held the largest share with 16.03 million SOL, roughly two-thirds of the total at that point. Blueshift contributed 3.6 million SOL; Temporal Emerald, 1.24 million.

Support grew substantially on August 5. SGP-0003, the governance wrapper for SIMD-0553, crossed the 65.16 million SOL signaling threshold that day, triggering the formal 11-epoch vote clock. The companion SGP-0002, which wraps SIMD-0550, has tracked at a lower level of formal support. Both proposals share the August 18 deadline.

Validators who signaled informally must cast formal on-chain votes for their weight to count in the binding tally. The earlier signaling phase and its milestone established that at least 15% of staked SOL supported opening the vote; the formal vote now determines whether that support holds through the close.

Even at the terminal burn rate, CoinDesk noted that 9,000 SOL per day in burns remains well below the roughly 60,000 SOL Solana emits daily under its current inflation schedule. The combined effect of the two proposals is additive. Neither alone closes the gap, which is why they have been put to validators together.