Illinois enacted a 0.2% tax on cryptocurrency transactions effective January 1 2027, becoming the first state to levy digital asset trades. Governor JB Pritzker signed the Digital Asset Tax Act in mid‑June as part of a $55.9 billion budget. The federal GENIUS Act, enacted in 2025, designates Treasury the OCC and banking regulators as overseers of stablecoin issuance and reserves, and permits states to regulate smaller issuers only if their rules are substantially similar to the federal framework. Issuers with more than $10 billion in outstanding stablecoins must transition to federal oversight or cease new issuance. The CLARITY Act, which passed the Senate Banking Committee 15‑9 in May, defines when tokens are securities versus commodities and sets registration requirements for exchanges and brokers. Its preemption language would bar states from treating digital commodities as securities, though state securities administrators warn it limits their ability to pursue fraud and enforce consumer protection. Illinois' tax applies to exchanges, custodians and brokers that handle crypto for residents and to out‑of‑state brokers earning over $100,000 annually from Illinois customers, who must register and collect the levy. Direct wallet‑to‑wallet transfers between individuals are exempt, and the tax is assessed on the gross value of each transaction regardless of profit or loss. Industry groups estimate the levy will generate about $60 million per year, and the Crypto Council for Innovation has called it the most punitive digital‑asset tax in the United States. Analysts say state‑level taxes could undermine the uniformity promised by the federal rulebook, creating a patchwork of costs that may affect market liquidity and lead firms to avoid Illinois. Congress would need to pass separate legislation or amend existing acts to prohibit state taxes on digital‑asset transactions, a step not included in the current GENIUS or CLARITY drafts.