Solana is moving towards a stricter monetary model, which could lead to a $SOL supply deficit while simultaneously reducing one of the network's main attractions for holders: staking yield.
Two proposals are defining the direction of these changes. SIMD-550, proposed by Helius and currently under governance vote, would double Solana's annual disinflation rate from 15% to 30%. As of now, major validators, including Forward Industries and Blueshift, have voted in favor of the proposal, while Everstake and P2P.org have voted against it.
Proposal SIMD-553, introduced by Temporal and approved in July, introduces an additional token burn tied to requested compute units. According to estimates by Matt Mena, Senior Cryptocurrency Research Strategist at 21Shares, these changes combined could reduce $SOL issuance by $1.4 to $1.5 billion over six years.
The immediate consequence will be lower yields. Currently, Solana's staking yield is approximately 5.25%, with protocol inflation being the largest component alongside transaction fees and MEV revenue.
Staking Yield Could Fall to 2.25%
Under SIMD-550, Solana will reach its final inflation rate of 1.5% around the first half of 2029 instead of approximately 2032. The projected nominal staking yield is expected to fall to about 4.34% in the first year, 3% in the second year, and 2.25% in the third year.
Proposal SIMD-553 will simultaneously increase the volume of $SOL burned. At the current level of activity, the daily burn volume could increase from approximately 600–800 $SOL to 7,500–9,000 $SOL. This is still below the current inflation rate but substantially changes the supply trajectory.
"We believe inflation should be tied to economic performance and growth to help offset declining staking yields," Mena wrote.
Validator economics remain a concern. Depending on the final fee structure, voting costs could rise significantly, while lower inflation will reduce rewards. According to SIMD-550 estimates, two validators could become unprofitable in the first year, with the number rising to around 30 by the third year.
Lower Yields May Push Capital into Solana DeFi
These proposals also aim to change the distribution of $SOL capital.
Currently, about 67.9% of $SOL is staked, almost double Ethereum's rate of approximately 34.1%. Lower passive yields may prompt holders to redirect capital into lending, trading, and other decentralized finance (DeFi) applications.
This could be significant if activity growth leads to an increase in transaction fees, MEV, and other revenues sufficient to offset the decline in inflation rewards.
Mena argues that the supply-reduction signal could also support $SOL's investment appeal. Following Ethereum's EIP-1559 burn mechanism and Cosmos's inflation reduction in 2023, short-term price surges occurred, though broader market conditions played the primary role.
For $SOL holders, the picture is becoming clearer: lower yield today in exchange for less dilution tomorrow. Whether this becomes a growth driver will depend on whether network usage grows fast enough to make such a trade-off worthwhile.
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