Uniswap flipped the protocol fee switch on July 27, 2026, activating charges across its v4 liquidity pools on seven blockchain networks at once. This change instantly pushed daily protocol revenue to about $325,000, marking a significant milestone for the decentralized exchange.
The fee switch sets the protocol fee at roughly one-sixth of the existing swap fee. For most pools charging 0.30%, about 0.05% now goes to Uniswap itself. Traders face a slight increase in costs, but liquidity providers keep most of their earnings intact. Uniswap’s founder, Hayden Adams, emphasized that this design carefully avoids cutting into LP returns, which are key for maintaining liquidity.
The protocol fees collected flow into TokenJar contracts, where claiming them requires burning UNI tokens. This means the revenue directly reduces UNI’s circulating supply, acting like a buyback but through token destruction. The rollout covers Ethereum, Arbitrum, Base, BNB Chain, Polygon, OP Mainnet, and Robinhood Chain.
The decision followed a governance process that began with a community temperature check on July 7, leading to an on-chain vote between July 19 and July 26. The results were overwhelming: nearly 46.6 million UNI voted in favor while only 1.27 million opposed. The proposal easily surpassed the 40 million UNI quorum needed.
This update builds on the UNIfication framework approved in late 2025, which introduced fee collection and UNI burns on v2 and some v3 pools as a proof-of-concept. Now, Proposal 100 delivers a full-scale expansion to v4 pools across multiple chains, setting a new revenue baseline for the protocol and reinforcing UNI’s deflationary mechanisms.
