Uniswap is gearing up to enable protocol fees on its latest v4 pools, with on-chain voting starting around July 19, 2026. This follows a decisive temperature check where 93% of UNI voters supported activating fees across 11 blockchains, signaling strong community backing.

The temperature check, conducted from July 7 to July 12, saw nearly 13.9 million UNI votes in favor and just about 1 million against. With such a clear margin, the protocol is poised to roll out fees that will impact various v4 pool types.

How the Fee Structure Will Work

The proposals focus on three categories of v4 pools: static fee pools without hooks, continuous clearing auction pools, and aggregator hook pools. Hooks serve as modular tools allowing developers to customize liquidity pool behavior, a signature feature introduced with Uniswap v4 on January 31, 2025.

Fee rates will differ depending on the pool and chain. For instance, on Base, stablecoin pools face a 10 basis point fee, while some aggregator hooks could see fees multiplied by 25 times. Fees collected on each chain will accumulate in so-called TokenJars before being bridged back to Ethereum.

Once bridged to Ethereum, these fees won’t remain idle. They’ll be sent to the 0xdead address, effectively burning tokens and reducing UNI’s total supply. This mechanism echoes the December 2025 UNIfication vote, which introduced similar fee-based burns for v2 and v3 pools, recently leading to a daily burn record of 186,000 UNI tokens.

This expansion to v4 pools across multiple chains, including Ethereum and Base, marks a significant increase in revenue streams feeding into UNI’s deflationary model. The protocol aims to build a broad multi-chain fee pipeline that funnels back into a unified burn on Ethereum, transforming UNI from a governance token into a deflationary asset.

However, not everyone is on board. Some liquidity providers worry that protocol fees will eat into their returns. While most governance participants seem willing to accept this tradeoff, concerns from LPs remain an important part of ongoing discussions.