Uniswap is extending its protocol fee system to BNB Chain, Polygon, and Celo, following a governance proposal posted on May 16. This expansion brings the total number of blockchains with active protocol fees to 13, as part of a phased rollout that began on Ethereum mainnet in December 2025. The protocol fees are set at 1/5 of the pool fee, with collected UNI tokens being burned to reduce supply. The proposal, which bypassed the usual Request for Comment stage, was fast-tracked under the UNIfication framework, receiving strong community support during the Snapshot voting process. This move corrects a previous error on Celo and introduces new TokenJar infrastructure for BNB Chain and Polygon. While the expansion offers new opportunities, it also increases the risk of bridge exploits, a known vulnerability in DeFi.
Uniswap Expands Protocol Fees and UNI Burning to BNB Chain, Polygon, and Celo
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