Solana validators are voting on two linked proposals — SIMD-0553 and SIMD-0550 — that would restructure the network's fee model and double its disinflation rate. Together, the measures would increase daily SOL burns from approximately 648 SOL ($47,000) to between 7,500 and 9,000 SOL ($650,000), w...
"If I submit a transaction that does nothing versus a transaction that burns 200 million CPU cycles, I'm charged the same amount." — Cavey, Temporal Researcher & SIMD-0553 Author
Solana validators are voting on two linked proposals — SIMD-0553 and SIMD-0550 — that would restructure the network's fee model and double its disinflation rate. Together, the measures would increase daily SOL burns from approximately 648 SOL ($47,000) to between 7,500 and 9,000 SOL ($650,000), while accelerating the timeline to reach Solana's 1.5% terminal inflation rate by three years, from 2032 to 2029. The projected six-year impact: 18.9 million fewer SOL minted, equivalent to roughly $1.4 billion at current prices.
The formal stake-weighted vote closes August 18. As of August 8, SGP-0003, the governance wrapper for both proposals, had crossed the 65.16 million SOL signaling threshold required to trigger the binding 11-epoch vote period. The outcome will determine whether Solana's fee economics shift from a flat-rate model, where spam and complex DeFi swaps cost the same, to a resource-based regime that penalizes compute-intensive transactions and rewards efficiency.
Solana's current governance push follows the March 2025 defeat of SIMD-0228, a Multicoin Capital-backed proposal to shift SOL from fixed to dynamic inflation. That vote drew 74% turnout of staked supply but failed with only 43.6% approval, well short of the required two-thirds majority. The split was structural: large validators holding over 1 million SOL backed the proposal at 65.8%, while small and medium operators holding under 500,000 SOL opposed it by 60-67.5%, fearing reduced block rewards would threaten their viability.
SIMD-0553 and SIMD-0550 represent an alternative approach. Rather than overhauling the inflation formula itself, the proposals attack the problem from two angles: increasing the rate at which SOL is destroyed through fees, and doubling the speed at which issuance declines under the existing schedule. The framing shift matters. SIMD-0228 proposed to cut validator income directly. The new proposals aim to increase burns while keeping inflation reduction on a predictable, scheduled glide path.
SIMD-0553, authored by Temporal researcher Cavey (cavemanloverboy) and merged on July 20, 2026, replaces Solana's flat 5,000-lamport per-signature fee with a two-part structure:
Inclusion fee: 2,500 lamports per signature, paid directly to the block-producing validator. This is half the current flat fee.
Resource fee: A variable charge calculated at 0.5 lamports per compute unit (CU) requested, burned entirely. A transaction requesting the maximum 1.4 million CU would pay 700,000 lamports in resource fees on top of the inclusion fee.
The economic logic targets a specific inefficiency. Under the current model, a no-op transaction and a transaction consuming 200 million CPU cycles cost the same. According to Cointelegraph's analysis, in the past 30 days, five high-failure traders submitted 11.5 million transactions consuming 929 million compute units across 2,477 actual trades, generating $16,091 in profit while paying only 78 SOL in fees. SIMD-0553 would make this strategy substantially more expensive by pricing compute consumption directly.
At recent network activity levels, the proposal would lift daily burns from approximately 648 SOL to between 7,500 and 9,000 SOL — a 12 to 14x increase. Annualized, that amounts to roughly 3.3 million SOL removed from circulation. Against daily issuance of approximately 60,000 SOL, the burn-to-issuance ratio would rise from roughly 1% to between 12.5% and 15%.
Implementation is targeted for the Solana 4.3 release.
SIMD-0550 is the companion disinflation proposal. Solana's inflation schedule started at 8% annually and declines by 15% each year, targeting a terminal rate of 1.5%. Under the current trajectory, that floor arrives in 2032. SIMD-0550 doubles the annual reduction to 30%, pulling the terminal date forward to the first half of 2029.
The proposal's modeling projects approximately 18.9 million fewer SOL minted over six years, equivalent to roughly $1.36 billion at the $72-76 SOL price range prevailing in mid-August 2026. Solana's current inflation rate stands at approximately 3.73-3.8%.
If both proposals pass, the combined effect compresses net annual supply growth to approximately 1.05% by 2029, below Solana's stated 1.5% terminal inflation target. The proposals do not flip SOL to a net-deflationary model in the near term — daily issuance of 60,000 SOL still exceeds the projected maximum burn of 9,000 SOL — but they narrow the gap substantially.
Current network economics for context:
| Metric | Current | Post-SIMD | |---|---|---| | Daily SOL issued | ~60,000 | ~60,000 (declining faster) | | Daily SOL burned | ~648 | 7,500–9,000 | | Annual inflation | ~3.73% | ~3.73% (declining to 1.5% by 2029) | | Burn/issuance ratio | ~1% | ~12.5–15% | | Terminal inflation date | 2032 | H1 2029 |
As of August 5, SGP-0003 crossed the 65.16 million SOL signaling threshold, triggering the formal vote clock. Over 70 validators have signaled support. However, the backing exhibits significant concentration.
Helius, the infrastructure firm whose team authored the proposals, contributed 16.03 million SOL — approximately two-thirds of the initial 24.94 million SOL gathered during the early signaling phase. Blueshift contributed 3.6 million SOL. Temporal Emerald added 1.24 million SOL.
Named supporters include Jupiter, Staking Facilities, Drift Protocol, OtterSec, Anza (a core protocol development firm), and Solana Labs co-founder Anatoly Yakovenko. DeFi Development Corp. (Nasdaq: DFDV), the first U.S. public company with a treasury strategy built on SOL accumulation, announced formal support on August 4. Its CEO, Joseph Onorati, stated: "We believe these proposals represent meaningful steps toward a stronger and more sustainable economic model."
The concentration of early support in Helius-linked stake raises questions about whether broader validator consensus exists or whether the threshold was crossed primarily through a single operator's weight.
SIMD-0553 creates winners and losers across transaction types. According to modeling cited by Cointelegraph:
Cheaper under SIMD-0553:
More expensive under SIMD-0553:
The distribution is by design. Simple transfers and oracle updates consume minimal compute. Complex DeFi swaps and MEV-seeking strategies consume disproportionate resources. SIMD-0553's author framed this as an optimization incentive: "By installing this resource pricing right now, suddenly app developers have to optimize," Cavey stated in an interview with Cointelegraph.
Even at maximum compute intensity, the projected cost per transaction reaches approximately $0.05, compared to $2-$5 on centralized exchanges, according to the proposal's modeling.
Formal opposition has been more muted than during the SIMD-0228 debate, but concerns exist.
Validator revenue compression. Chainflow's summary of validator discussions for the week of July 31 through August 7 documented operators concerned that the inclusion fee reduction from 5,000 to 2,500 lamports would cut validator fee income by approximately 9.57%. Combined with SIMD-0550's faster inflation reduction, small validators face a squeeze on both revenue sources: lower fees and declining staking rewards. One GitHub contributor, bji, stated: "I like the aspect of this proposal that gives tx submitters extra incentive to be accurate with CU limits. Everything else I'm meh to negative on. 'More burn' should not be a goal. Validator incomes should not be arbitrarily reduced."
SIMD-0228 precedent. The earlier vote demonstrated that small validators can mobilize late to block proposals they perceive as threatening their economics. With the SIMD-0553/0550 vote closing August 18, the same dynamic could repeat.
Competing visions. A parallel proposal, SIMD-547, introduced in June 2026, would increase daily burns by 16 to 100x (an estimated 10,800-64,800 SOL daily), a more aggressive approach. SolStrategies CEO Michael Hubbard has publicly argued that the focus should be on stimulating the Solana economy rather than adjusting monetary policy. Yakovenko himself posted on August 15 an alternative framing: "The most bullish simd isn't to lower inflation, it would be to inflate the supply, to acquire another company with sol, and integrate their revenues into a buy/burn." Helius CEO Mert Mumtaz responded: "yeah im sure all the validators can agree on how to run a company together."
The exchange underscores the absence of consensus on whether supply-side adjustments or demand-side growth should take priority.
The vote arrives as institutional SOL exposure deepens. BNY announced on August 4 plans to add staking to its Digital Asset Custody platform through a Galaxy partnership. DeFi Development Corp. continues to accumulate SOL as a public-company treasury asset.
For institutional holders, SIMD-0553 and SIMD-0550 present a mixed picture. Faster disinflation reduces nominal staking yields — projected to decline from approximately 6.41% to 5.04% in year one and 3.48% by year two, according to SIMD-0411 modeling that uses comparable parameters. However, reduced supply growth may support SOL's unit price over time, potentially offsetting the yield compression in total-return terms. The net effect depends on whether Solana's network activity grows fast enough to compensate through increased transaction fee revenue.
SOL traded at approximately $75.49 on August 16, with a market capitalization of roughly $43.9 billion and approximately 432.65 million SOL staked across the network — a staking participation rate near 68%.
Solana's governance apparatus faces its most consequential vote since SIMD-0228's failure 17 months ago. The proposals are narrower in scope, targeting fee restructuring and disinflation acceleration rather than a wholesale inflation model overhaul. The economic logic is straightforward: price compute resources, burn the proceeds, and let the existing disinflation schedule run faster.
Whether validators ratify that logic by August 18 depends on whether the small-operator coalition that defeated SIMD-0228 views these proposals as a reasonable middle ground or a different path to the same revenue compression they previously rejected. The data suggests the outcome is genuinely uncertain.