18 Crypto Firms Seek to Join Court Fight Over Illinois’ 0.2% Crypto Tax

Eighteen crypto firms and advocacy groups, led by the DeFi Education Fund, have asked an Illinois court for permission to file an amicus brief challenging the state's Digital Asset Tax Act and its 0.2% levy on digital asset transactions. The coalition argues the tax is unlawful, joining an ongoing legal fight over how Illinois applies the charge to crypto activity. The case matters because it tests whether states can impose transaction-level taxes on decentralized finance, a precedent that could shape compliance costs for exchanges, protocols and traders nationwide. What to watch next is whether the court grants leave for the brief and how it rules on the merits of the 0.2% assessment.