Two More Groups Sue Illinois Over Its 0.2% Crypto Tax
Illinois is now facing a second wave of legal fire over its 0.2% digital asset transaction tax. The Crypto Council for Innovation (CCI) and the Blockchain Association (BA) filed a joint lawsuit on 22 August 2026 in the Circuit Court of the Seventh Judicial Circuit for Sangamon County, challenging the tax on constitutional, due process, and federal-law grounds. If you hold or trade crypto and want to understand how to calculate crypto taxes you actually owe versus taxes that may never legally apply, this case matters to you. The lawsuit arrives just weeks after a similar challenge from the Digital Chamber, turning Illinois into the first US battleground over a state-level crypto transaction tax.
What the Illinois Tax Actually Does
Illinois Governor JB Pritzker signed the levy into the state's fiscal year 2027 budget, labelling it a "privilege tax." Unlike a capital gains charge, which falls on profit, this tax is calculated against transaction volume, meaning it hits every trade, swap, or transfer regardless of whether the user made any money. Enforcement is scheduled to begin in January 2027.
Transaction volume versus income: why the distinction matters
A volume-based crypto tax is structurally different from anything the IRS currently imposes. The IRS taxes realised gains; Illinois wants a cut of the gross flow. For active traders or those running frequent smaller transactions, the cumulative drag could exceed any gain on the underlying position. That asymmetry sits at the heart of the legal challenge.
The Legal Arguments in Plain English
CCI and BA are attacking the law on several fronts simultaneously, and each argument targets a different constitutional or statutory weakness.
Unconstitutional vagueness
The groups argue the statute is so poorly drafted that ordinary residents and brokers cannot determine what assets are covered or how the tax is calculated, all while facing the threat of serious civil and criminal penalties for getting it wrong. That, they say, is a due process violation under both the US and Illinois constitutions. Vagueness challenges are among the strongest tools available against new tax regimes, because courts have consistently held that people must have fair notice of what the law requires before they can be punished for breaking it.
Interstate commerce and duplicative taxation
The complaint also invokes the Commerce Clause of the US Constitution. The plaintiffs argue that Illinois is effectively taxing activity that flows across state lines, creating what they describe as "the specter of duplicative taxation." The concern is practical: if Illinois taxes a transaction that another state could also claim jurisdiction over, the same trade gets taxed twice with no mechanism to offset either charge.
The Internet Tax Freedom Act
Federal law restricts states from imposing discriminatory taxes on electronic commerce. CCI and BA argue the Illinois levy falls into that prohibited category because it singles out digital asset transactions in a way that has no equivalent for traditional financial instruments. If the court agrees, the state's authority to collect the tax collapses on federal preemption grounds alone, without needing to resolve the constitutional claims.
What the Blockchain Association's CEO said
Summer Mersinger, CEO of the Blockchain Association and a former commissioner at the US Commodity Futures Trading Commission, stated that while states have a legitimate role in fostering innovation, that authority has constitutional limits. Her framing of the dispute, that Illinois is fragmenting a national market and creating uncertainty for consumers and businesses, signals that this litigation is intended to set a nationwide precedent, not just resolve an Illinois-specific grievance.
How This Connects to the Digital Chamber's Earlier Suit
In July 2026, the Digital Chamber filed its own lawsuit against the Illinois tax, arguing it discriminates against people who transact in digital assets. The CCI and BA complaint largely agrees with that framing but layers on the Commerce Clause and Internet Tax Freedom Act arguments, broadening the legal surface area. Having two separate lawsuits run in parallel is a deliberate strategy: it increases the pressure on Illinois officials, creates more opportunities for favourable rulings, and means the state has to defend on multiple fronts simultaneously.
You can read the background to the original Digital Chamber filing in our earlier piece on the Illinois 0.2% crypto tax legal challenge.
What This Means for Your Crypto Tax Position Right Now
The tax is not yet in force. Enforcement is set for January 2027, and two active lawsuits could delay or block that date entirely. But waiting is risky if you're an Illinois resident who trades actively, because courts do not always move faster than tax calendars.
For individual filers in Illinois
Your federal crypto tax obligations under the IRS are unaffected by this dispute. You still owe capital gains tax on profitable disposals and ordinary income tax on staking rewards, mining income, and similar receipts. Nothing in either lawsuit changes that. What is genuinely uncertain is whether the 0.2% state levy will ever be collectible. You don't need to set aside reserves for it yet, but you should keep your transaction records clean and complete so that, if the tax survives the courts, you can calculate crypto taxes owed at the volume level without scrambling for missing trade data.
If you're unsure how your federal position looks ahead of the Illinois situation resolving, our guide to Form 1099-DA for DeFi, staking, and NFT holders is a good starting point.
For businesses, brokers, and firms serving Illinois clients
The vagueness argument has direct operational implications. If the statute passes legal scrutiny, brokers would bear reporting and withholding obligations they currently have no framework to satisfy. Compliance infrastructure for a volume-based state tax is fundamentally different from the gain-based reporting that existing systems handle. Firms should watch the docket closely and avoid building compliance systems around a tax whose legal status is this uncertain.
Broader implications for the US crypto tax landscape
Illinois is the first state to attempt a transaction-volume crypto tax of this design. If the courts strike it down, that ruling could block copycat legislation in other states. If it survives, other state legislatures may treat it as a template. Either outcome will shape the US crypto tax landscape well beyond Illinois, which is why national advocacy groups rather than local ones are leading the charge.
The broader reform picture at the federal level is also shifting fast. For context on where US crypto tax legislation stands as a whole, our overview of US crypto tax reform in 2026 covers the key moving parts.
Frequently Asked Questions
Does the Illinois 0.2% crypto tax affect me if I live in another state?
Not directly. The tax, if it takes effect, would apply to transactions by Illinois residents and potentially to brokers operating in the state. However, the Commerce Clause argument in the lawsuits suggests the plaintiffs believe the tax could reach beyond state borders in ambiguous ways, which is part of why they're challenging it now.
Is the Illinois crypto tax in effect yet?
No. Enforcement is scheduled to begin in January 2027. Two separate lawsuits are currently challenging the tax, and a court order could delay or permanently block its implementation.
How is this different from how the IRS taxes crypto?
The IRS taxes realised gains, meaning you owe tax only when you sell or swap an asset at a profit. Illinois' tax is applied to transaction volume, so it applies to every trade regardless of whether you gained or lost money. That structural difference is one reason the advocacy groups describe it as discriminatory.
What should I do now if I'm an Illinois crypto holder?
Keep your transaction records in good order. Your federal obligations under IRS rules remain unchanged and should be your priority. Monitor the court proceedings, but don't build your tax planning around a law that may never take effect. If the landscape changes significantly, a crypto tax professional can help you assess any new state-level exposure.
What is the Internet Tax Freedom Act and why does it matter here?
The Internet Tax Freedom Act is a federal law that restricts states from imposing discriminatory taxes on electronic commerce. CCI and BA argue that singling out digital asset transactions with a volume-based levy, when no equivalent exists for other electronically traded financial products, crosses that line. If a court agrees, federal law would preempt the Illinois statute.
Source: Cointelegraph