SOL Staking APR After SGP-0002: How Much Could Rewards Change?

TL;DR

• Solana validators narrowly approved SGP-0002 on August 28, 2026, doubling the annual disinflation rate from 15% to 30%. It passed by 0.334 points after late vote reversals, the network’s first binding on-chain governance decision.
• SGP-0002 approved the issuance change, while SIMD-0550 defines how that change is implemented at the protocol level.
• The baseline nominal staking rate is projected to fall from about 5.04% today toward 4.34% in year one, 3.00% in year two, and 2.25% in year three near 2029. These are Helius Research projections at a 68% stake rate, and actual figures will move with the stake rate and fee activity.
• That baseline counts only rewards from newly minted SOL. The real rate might be different, because MEV and priority fees are untouched by this change and, by mid-2026, already add roughly 0.5–1% on top through the Jito.
• With lower issuance holders face slower dilution, while stakers receive fewer new tokens each year.
• The lower issuance schedule will not apply immediately. SIMD-0550 requires the relevant technical changes and feature activation before the new disinflation rate takes effect.

Background: Why This Came Up, and Why Now

The push to cut SOL emissions is years old. A public thread on doubling disinflation was opened by Austin Federa in March 2025, and the idea kept resurfacing.

The immediate trigger came on June 1, 2026. Solana co-founder Anatoly Yakovenko signalled his support to make another proposal to double the disinflation rate, one day before Helius engineers filed the document.

SIMD-0550 is the direct successor to two earlier tries. SIMD-0228, a market-based model, drew only 37.8% support in March 2025, and SIMD-0411, submitted in November 2025, was closed for inactivity in January 2026 while the network waited for governance tooling.

Both earlier attempts, SIMD-0228 and SIMD-0411, explored versions of the same disinflation adjustment. SIMD-0550 narrowed the idea to a single parameter, which is what finally cleared the bar.

The core argument is that Solana has moved past bootstrapping. Supporters say the network was overpaying for security, and that high early issuance is no longer needed to keep stake locked up.

Opposition centered on pace and predictability, arguing that institutions need predictable multi-year economic rules. The deeper worry was decentralization. Any cut to issuance preferentially harms small operators, and a shrinking validator set weakens the network’s distribution of stake.

What Changed with Double Disinflation

SGP-0002, nicknamed Double Disinflation, doubles how fast Solana issuance declines each year. The terminal inflation floor stays at 1.5%, and only the speed of getting there changes.

The disinflation rate is the speed of the slowdown, and that speed doubled from 15% to 30%. The inflation rate is how much new SOL appears each year, and its endpoint of 1.5% did not change. Solana reaches the same destination on a faster timeline.

Under the old schedule, Solana reached the 1.5% floor in about 5.7 years, near 2032. The faster path reaches the same floor in about 2.8 years, near 2029.

The technical vehicle is SIMD-0550, authored by Helius contributors Lostin and 0xIchigo. It flips an on-off switch in the validator software, called a feature gate, that changes the taper setting known as the yearly slowdown speed. 

SIMD-0550 projects roughly 18.9 million fewer SOL minted over six years, about $1.5 billion at the price used in the model.The 18.9 million figure is a comparison against the old emissions path, and Solana keeps issuing SOL toward the 1.5% floor. Total supply ends up about 2.6% lower than under the old schedule, and the $1.5 billion dollar equivalent moves with the SOL price and should be read as an estimate.

Before and After: Staking APR

The table below shows the baseline nominal staking rate at 68% stake participation, which is the proposal’s own assumption.

These figures cover the issuance-based portion only, meaning the freshly minted SOL. They exclude MEV, priority fees, block rewards, and validator commissions.

MEV is extra value validators capture from ordering transactions, and priority fees are tips users pay to jump the queue during busy periods.

Timeframe	New schedule (SIMD-0550)	Old schedule	Est. real rate, new schedule
Today	~5.84%	~5.84%	~2.1%
Year 1	~4.34%	~4.93%	~2.4%
Year 2	~3.00%	~4.17%	~1.9%
Year 3	~2.25%	~3.52%	~1.6%

Both paths reach the same 1.5% floor, SIMD-0550 simply does it sooner.

Let’s use an example with 100 SOL. Staking 100 SOL at roughly 5.04% today produces about 5.04 SOL per year before fees, as the Everstake SOL staking calculator shows.

Under the new schedule, that same 100 SOL produces about 4.3 SOL in year one and closer to 2.25 SOL by year three.

The rate you actually receive runs higher than the table’s baseline column. The nominal figures leave out MEV, priority fees, and block rewards, which SIMD-0550 does not touch.

As issuance shrinks, activity-based rewards become a larger share of total staking rewards. Over 90% of active stake is already with validators running the Jito-Solana client, the software that lets validators collect MEV tips, so those tips are a meaningful component.

Real Rate vs. Nominal Rate

The nominal rate is the headline percentage of new tokens you receive. The real rate adjusts that number for how fast the total SOL supply is growing around you.

This is the single most misread number in the whole debate. Competitors that rank for “SOL staking real rate” hammer one framing: the headline sits at about 6–8%, but SOL inflation runs around 5–6%, so subtracting dilution leaves a thin 1–2% in real terms today.

That math is tied to the pre-activation schedule, so treat it as the starting point, not the post-SIMD-0550 number. Inflation had already fallen to roughly 3.67% by mid-2026, so current real rates are already better than the older 5–6%-inflation figures imply.

Lower inflation cuts the nominal staking number, but it also mints less new SOL. Less new SOL means slower dilution for people who hold the token.

Dilution is the drop in your ownership share when the network creates new coins for everyone else. Non-stakers benefit directly, because their share of supply erodes more slowly. Since the nominal cut and the dilution cut fluctuate together, the real rate is partially preserved even as the headline falls, and Helius frames the real purchasing power of rewards as largely held.

The right-hand column in the table above makes this concrete. The nominal rate falls by more than half from today to year three, while the estimated real rate barely moves, because slower dilution offsets most of the lower headline number.

Whether the real rate fully holds or improves depends on two things. The future stake rate sets how the issuance pie is split, and growth in fee and MEV activity adds rewards that cannot be projected or calculated since they are activity-based. The real-rate column is a hypothesis.

How SOL APR Compares After SIMD-0550: ETH, ADA, DOT, ATOM

The disinflation vote does not happen in a vacuum. Every major proof-of-stake network sets its rate through the same three levers: an issuance schedule, the share of supply already staked, and validator commission.

The table below shows approximate mid-2026 nominal rates, the inflation and the resulting real rate. 

NOTE: All figures are ranges that fluctuate with the stake rate and network activity.

Network	Nominal APR	Inflation	Approx. real rate	Unbonding
Ethereum	~2.8–3.8%	~+0.85%	~2–3%	1–5 days
Solana (pre-activation)	~6–8%	~3.67%	~1–3%	~1 epoch (2 days)
Cardano	~3–4%	~0–2%	~2–4%	None
Polkadot	~7–14%	~7–10%	~2–5%	24–48 hrs
Cosmos	~10–19%	~10–14%	~2–8%	21 days

Nominal rate and real rate are almost unrelated, because the chains with the biggest numbers also carry the heaviest inflation, and Cosmos‘s 10–19% collapses toward the same single-digit real band as everyone else.

The most suitable comparison for Solana‘s future is Ethereum. Ethereum‘s base APR has fallen below 3% partly because around 32% of supply is now staked and the protocol generates a fixed issuance budget across a growing validator set.

Ethereum‘s 7-day APR fell to about 2.66% by mid-2026, down nearly 47% from its 2023 peak, and marginal validators began exiting as the rate compressed. 

Ethereum compresses passively as more ETH is staked, while Solana is compressing actively by legislating a faster taper, and both leave stakers leaning more on MEV and fees as issuance decreases.

Where The Staking Rewards Come From After SIMD-0550

As issuance shrinks, the activity-based components of staking rewards, MEV and priority fees, become a structurally larger share of the total.

By mid-2026, the Jito-Solana client runs on the vast majority of active stake, and Jito tips account for over 60% of all priority-fee volume on the network. MEV capture has become a structural feature of block production far from the edge case.

Think of the total reward as a pie with three slices: issuance, MEV, and priority fees. SIMD-0550 shrinks only the issuance slice, so over the roughly three-year taper the other two slices grow as a share of the whole, even if their absolute size holds steady.

The issuance slice is falling on a fixed schedule, while the MEV and fee rewards depend on network usage, which is set by demand.

If Solana activity grows, the activity-based slices can potentially offset a meaningful part of the issuance decline.

Why Change The Speed of Issuance on Solana

Solana supporters argued the network no longer needs elevated early issuance to secure itself.

Lower issuance means slower dilution and a more sustainable long-term monetary policy. Inflation had already fallen to roughly 3.67% by mid-2026, down from the original 8% start.

The vote was contested. SGP-0002 passed by just 0.334 points, clearing the 66.67% supermajority bar at 67.001% support.

Large operators split on the question. Helius advocated for the change, while Figment, Everstake and P2P voted against it (read our reasoning here, however, we respect the outcome and community’s decision). The arguments against it were based on concerns that what helps long-term holders could harm the number of smaller validators, impact the projected reward models of institutions and shrink what stakers receive. 

The final tally recorded 176.29 million SOL for, 66.19 million SOL against, and 20.63 million SOL abstaining, cast across 1,326 validators.

Who Feels It Most

The impact of SIMD-0550 lands differently across three groups.

Retail delegators and liquid staking users see lower rates most directly. Small validators face the most pressure. Operators that rely on inflation rewards have thinner margins than those with strong fee and MEV revenue as issuance falls. Also, it is worth mentioning that the number of validators on Solana’s validator count has trended downward recently, and it might only increase the stake concentration.

The proposal models this pressure estimating that out of 738 active validators:

• 2 move to unprofitable in year one,
• 13 by year two,
• 30 by year three.

The long-run break-even stake requirement is identical under both schedules. SIMD-0550 arrives there sooner. Institutional and large stakers keep a lower baseline but are better positioned. They can lean on MEV and fee activity to offset thinner issuance rewards.

How to Protect Your Staking Rate

Validator choice matters more now as the issuance decreases, commission and vote performance become a larger share of what differentiates a good validator, so commission history, uptime, and stake concentration deserve more attention now.

Established validators, like Everstake, that supported Solana since its early days are well-experienced with the network, follow maintenance guidelines and updates, have strict operational standards and take care of the infrastructure. All these directly influence the high vote success rates, disciplined client upgrades, and strong uptime of the validator, hence the potential staking rewards. 

Timing and Activation

The current inflation rate of roughly 3.67% remains in effect. Nothing about issuance has changed on mainnet yet.

A hard technical precondition stands in the way. SIMD-0607 must merge first, and it targets client version Agave v4.4.

SIMD-0607 replaces floating-point reward math with deterministic integer math. The two mainnet clients, Agave and Firedancer, must produce bit-for-bit identical reward results.

If one client’s calculation deviates even in the last digit, that is a consensus failure. Deterministic integer math removes that risk before the disinflation gate can be scheduled.

The implementation sequence runs in order:

1. SIMD-0607 merges.
2. It ships in Agave v4.4.
3. Feature gates for both changes get scheduled.
4. The disinflation rate changes at an epoch boundary.

As of early September 2026 no timeline for Agave v4.4 has been given.

Bottom Line

The APR decline is gradual and already modeled. It steps down over several years once the change goes live, with each epoch settling under the schedule in force at the time.

The nominal rate falls by more than half over the taper, but the real rate moves far less, because slower dilution offsets most of the nominal cut. The open question is whether fee and MEV activity rises enough to support the total rate, and where the stake rate settles will shape the outcome.

Solana chose this tradeoff through its first binding on-chain vote. Less dilution for holders comes paired with a lower nominal rate for stakers, and it walks the network toward the same compressed-rate equilibrium Ethereum already occupies.

FAQ

Did SIMD-0550 pass?

Yes. SGP-0002, the governance mandate behind SIMD-0550, passed on August 28, 2026 with 67.001% support.

Will my current staking rewards drop overnight?

No. The decline is gradual, applies from an epoch boundary onward, and does not retroactively cut rewards already earned.

What will SOL staking APR be in 2029?

The current modeling projects a baseline nominal rate near 2.25% at 68% stake participation, before MEV, fees, and commissions.

How does SOL staking compare to ETH after this change?

Ethereum‘s base APR has already fallen below 3% as staking participation reached roughly 32% of supply. SIMD-0550 moves Solana toward a similar compressed-rate profile, with MEV and fees making up a growing share on both networks.

Does this change MEV or fee rewards?

No. SIMD-0550 changes issuance only, so MEV and priority fees are untouched.

How long does it take to unstake SOL?

Native unstaking takes about one epoch, roughly two days, and the stake is not liquid during cooldown.

Is lower inflation good or bad for stakers?

It is a tradeoff. Holders get slower dilution, while stakers receive fewer new tokens, and the net real rate depends on the stake rate and fee activity.