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GlossaryRReserve Factor (Lending)

Reserve Factor (Lending)

A percentage of interest retained by a lending protocol to fund operations or cover losses.

What is Reserve Factor (Lending)?

Reserve factor is the portion of borrow interest diverted to a protocol’s treasury, typically 10–20%. For example, if Compound’s borrow rate is 8% and the reserve factor is 15%, 1.2% goes to reserves. These funds cover operational costs, insurance, or governance incentives. Aave’s reserve factor for USDC was 10% in 2025, per protocol data.

Reserves ensure protocol sustainability, especially during defaults or hacks. In 2024, Compound’s reserves mitigated $10 million in losses from a minor exploit, highlighting their role in protocol resilience.

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