Illinois’s Digital Asset Tax Act is facing opposition from an unusually broad coalition spanning the US Justice Department, Wall Street trade groups and major crypto and decentralized finance organizations.
The Justice Department filed a statement of interest on November 6 supporting the legal challenge to the law. The US Chamber of Commerce and the Securities Industry and Financial Markets Association (SIFMA) also filed an amicus brief that day. A separate brief from crypto and DeFi organizations, led by the DeFi Education Fund, Andreessen Horowitz, Paradigm and Uniswap, followed on November 12.
June 16, 2026: Governor Pritzker signs Illinois Digital Asset Tax Act, set for Jan. 1, 2027 effect.
Nov. 6–12, 2023: DOJ, Chamber, SIFMA, and crypto groups file briefs challenging the tax in court.
Oct. 2023: Illinois pauses tax until July 1, 2027, while litigation and summary‑judgment motions proceed.
The filings support efforts by the Blockchain Association (BA), the Crypto Council for Innovation (CCI) and other industry groups to block the state tax. The legal challenges argue that the measure unfairly targets digital assets, creates compliance problems for businesses and may conflict with federal law and constitutional protections.
Illinois has agreed to pause the tax until July 1, 2027, while the cases proceed. The delay does not resolve the underlying legal dispute.
What Illinois’s Digital Asset Tax Does
Illinois enacted the Digital Asset Tax Act under Public Act 104-0468, signed by Governor JB Pritzker on June 16, 2026.
The law sets a 0.2% tax on the value of a digital asset involved in covered business activity provided to an Illinois customer by a digital asset broker. The statute defines that activity to include exchanging, transferring or storing a digital asset on behalf of a customer. Brokers are responsible for collecting and remitting the tax.
The levy is calculated on the value of the digital asset involved in the covered activity, rather than simply on the fee charged by the broker. It can apply even when an activity does not involve a sale, generate a profit or change ownership.
The law was originally scheduled to take effect on January 1, 2027. Its scope has drawn criticism from crypto companies because the tax could apply to activities such as asset transfers and custody, not just profitable trades.
The Illinois Department of Revenue’s draft rules, released in September, sought public feedback on how the tax would apply to digital asset brokers and customers. Industry groups raised concerns that the definitions could extend beyond centralized exchanges and custodians to other parts of the crypto ecosystem.
DOJ and Wall Street Join the Legal Challenge
The Justice Department’s November 6 statement of interest argues that Illinois’s tax raises concerns about federal digital-asset policy and the treatment of digital assets compared with other forms of property. The department also challenged the law’s clarity and the burdens it could impose on businesses.
The US Chamber of Commerce and SIFMA filed a separate amicus brief in the Sangamon County Circuit Court. Their arguments focus on the potential impact beyond crypto-native companies.
SIFMA represents firms across securities markets, including broker-dealers, banks, and asset managers. The groups argue that the law could affect traditional financial institutions that provide digital-asset services, including custody and investment products.
They also raise concerns about the compliance systems firms may need to build to identify Illinois customers, value assets and determine which activities trigger the tax. The US Chamber’s case page lists its brief and identifies the legal challenges involving the federal Internet Tax Freedom Act and the Constitution’s dormant Commerce Clause.
DeFi Firms Warn the Law Could Reach Developers
The latest filing adds a crypto-native coalition to the challenge. Led by the DeFi Education Fund, Andreessen Horowitz, Paradigm and Uniswap, the group includes Aave Labs, Aptos Labs, Chainlink Labs, Figment, Jito Labs, Multicoin Capital, Phantom, the Solana Policy Institute, and Stand With Crypto, among others.
The coalition argues that the law and its proposed implementation rules do not clearly distinguish between businesses that take custody of customer assets and decentralized software or infrastructure that enables users to transact independently.
Its concern is that broad definitions could expose software developers and decentralized protocols to tax obligations even when they do not hold customer funds, identify users or control transactions. The filing also cites an estimate that 2.64 million Illinois residents hold digital assets.
These are arguments made by the organizations supporting the legal challenge, not findings by the court. The DeFi coalition’s filing adds to the broader dispute over whether a state can impose obligations on decentralized infrastructure that may not operate like a conventional financial intermediary.
Two Legal Challenges Are Moving Through Illinois Courts
The current opposition builds on two related legal challenges.
The Digital Chamber and Illinois Blockchain Association filed an initial complaint in Sangamon County in July. The Blockchain Association and Crypto Council for Innovation brought a separate challenge in August, arguing that the law conflicts with federal and state legal protections.
In September, BA and CCI sought a preliminary injunction to prevent the tax from taking effect. The Crypto Times previously reported on the groups’ arguments, which included claims that the levy could be applied multiple times to a transaction and that the law was vague about which businesses would have to collect it.
In October, Illinois agreed to stay the tax’s effectiveness and enforcement until July 1, 2027, while the litigation continues. The parties also proposed an expedited schedule for resolving the legal questions. BA and CCI subsequently filed a motion for summary judgment on November 4, asking the court to declare the law unlawful and permanently block its enforcement.
The court has not issued a final ruling on the merits. Illinois’s agreement to delay the tax also does not amount to an admission that the statute is unconstitutional or unenforceable.
What the Court Fight Could Mean for Other States
The case could have implications beyond Illinois if the court accepts arguments that the law conflicts with federal protections for electronic commerce or places an unconstitutional burden on interstate transactions.
The Internet Tax Freedom Act and the dormant Commerce Clause are central to the challengers’ arguments. They contend that Illinois is treating digital-asset activity differently from comparable activity involving traditional assets and could impose compliance obligations on businesses operating across state lines.
The state has not abandoned the legislation, and the court has yet to decide whether the challengers’ arguments justify striking it down. The dispute therefore remains a test of how far states can go in taxing digital-asset services and which activities fall within the scope of a broker’s obligations.
For now, the July 1, 2027, stay gives the parties more time to litigate the measure before its planned implementation. The court’s eventual decision will determine whether Illinois can enforce the tax as written or must change its approach.
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