The Digital Chamber has taken Illinois' new crypto tax fight to court, filing a lawsuit in Sangamon County that asks a judge to stop the state's Digital Asset Tax Act before it reaches exchanges, custodians, wallet providers, and other firms serving Illinois customers.

What changed

The trade group says the tax provision was added to Illinois' state budget at the last minute and unfairly singles out blockchain-based activity. Its complaint argues that the measure violates the U.S. and Illinois constitutions and is preempted by federal tax law.

The filing frames the dispute around how ownership is recorded and transferred. According to The Digital Chamber, the tax does not turn on whether a user made money, whether a transaction produced a realized gain, or whether ownership actually changed hands. The group argues that this structure treats traditional financial rails differently from blockchain infrastructure.

Why it matters

This is now more than an industry objection to a new state tax. If the court allows the law to move forward, crypto businesses may have to build Illinois-specific compliance systems around a category of activity that the plaintiff says is broader than trading.

The case also gives other states a live test of how far they can go when taxing digital-asset services. The conservative read is that Illinois' law is still untested, but the lawsuit has turned a budget provision into a constitutional and preemption challenge that crypto policy teams will track closely.