DeFi Leaders Back Legal Challenge to Illinois Crypto Tax Rules

Uniswap, Andreessen Horowitz (a16z), and Paradigm backed a court challenge to Illinois’s 0.2% crypto tax. The DeFi coalition filed a brief opposing the state’s draft broker rules. The groups say the proposal would require fee-charging decentralized exchanges and their interfaces to collect the levy.

Illinois’ Digital Asset Tax Act is Unlawful and Unenforceable

DEF, @a16z, @paradigm, @Uniswap & 14 co-signers joined together to submit an amicus brief supporting @BlockchainAssn, @crypto_council, and @digitalchamber’s challenge to the Illinois’ Digital Asset Tax Act. pic.twitter.com/mkoOqPoni1

— DeFi Education Fund (@fund_defi) November 12, 2026

The Crypto Council for Innovation and the Blockchain Association brought the lawsuit in Sangamon County Circuit Court. The DeFi Education Fund, Aave Labs, and Chainlink Labs also signed the brief.

The U.S. Justice Departm…

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