Solana just flipped the switch on step two of its five-part plan to slash account storage costs by 90%. The second activation, hitting mainnet around September 11, 2026, drops the rent parameter from 6,333 lamports per byte down to 5,080, making up to 612,000 SOL available for users to reclaim.
What rent actually means on Solana
On most blockchains, storing data on-chain costs something. Solana’s version of this cost is called “rent,” though the name is a bit misleading. It’s not a recurring charge. It’s a fully refundable deposit that accounts must hold to keep their data stored on the network.
The original rate was 6,960 lamports per byte. Under proposal SIMD-0437, the network is cutting that in five planned steps to just 696 lamports per byte. That’s a 90% reduction, rolled out gradually to avoid any surprises in how the blockchain’s state grows.
Step one landed on September 3, 2026, trimming the rate to 6,333 lamports per byte. Step two takes it to 5,080. Together, those two moves represent a cumulative 27% cut from the original cost.
