What states can still do to crypto after GENIUS and CLARITY

Illinois just became the first state to tax crypto by the transaction. The new 0.2% levy hits nearly every trade, transfer, or custody service an exchange runs for an Illinois resident, and it takes effect January 1, 2027. Governor JB Pritzker signed the Digital Asset Tax Act in mid-June, tucked inside a $55.9 billion budget.

Washington is in the middle of building a single national rulebook for crypto. The GENIUS Act for stablecoins is already law, and the CLARITY Act for market structure is slowly approaching a Senate floor vote. Both promise the same thing: one set of rules for issuers, exchanges, brokers, and tokens, applied the same way in every state.

But Illinois is the first hard proof that a federal rulebook and a federal price tag are two completely different things. Nothing taking shape in Washington clearly stops a cash-strapped state from taxing the use of crypto inside its borders.

The fight ahead is narrower than the one that’s been going on in the last two years. Congress is about to settle what crypto is and who polices it. What it won’t settle is what a state can charge on top, and Illinois just showed that the number can be pretty high. Federal registration loses a lot of its shine if a token is legal in all fifty states but significantly more expensive to use in a dozen of them.

What Washington actually settles, and where its power stops

The federal rulebook covers the things the industry has spent years fighting about. GENIUS, signed in 2025, set the framework for payment stablecoins. It put Treasury, the OCC, and the banking regulators in charge of who can issue the coins and what reserves they have to hold. Treasury’s first proposed rule under GENIUS lets a state keep supervising its own smaller stablecoin issuers, but only if the state’s regime is “substantially similar” to the federal one.

The leash gets shorter as issuers grow. Any state-qualified issuer that crosses $10 billion in outstanding stablecoins has to shift toward federal oversight or stop minting new coins until it shrinks back under the line. The CLARITY Act handles the bigger market-structure question. The Senate Banking Committee advanced it 15-9 in May, and it’s now on the Senate calendar awaiting a floor vote. It draws the line between what the SEC treats as a security and what the CFTC treats as a digital commodity, and it sets the terms under which exchanges and brokers register.

What federal law can do to a state is more limited than the word “clarity” suggests. Washington can override a state rule, but only in a handful of situations. It happens when Congress says so unambiguously and in plain language, when a state law directly clashes with a federal one, or when the federal scheme is so complete that no real room is left for the state.

The scope of that override decides everything, and it’s where the Illinois problem slips through. The House version of CLARITY carries strong preemption language that would block states from regulating digital commodities, including treating them as securities under state law. That’s one of the most useful parts of the act, because it stops fifty different definitions of the same token.

However, state officials have already pushed back on it. State securities administrators warn that the language weakens their power to chase fraud, and state banking supervisors are fighting to keep their money-transmission and consumer-protection authority intact.

But a tax on business activity like the one implemented in Illinois is well outside that fight. Stopping a state from relabeling Bitcoin as a security is a wholly separate thing from stopping it from taxing the companies that move Bitcoin for its residents.

Why a crypto tax wall outlives the rulebook

Illinois shows how a state raises the cost of crypto while leaving the thing itself perfectly legal.

The Digital Asset Tax Act goes after the business of running digital-asset services. That means the exchanges, custodians, and brokers handling crypto for Illinois customers are taxed at 0.2% of the value in each covered transaction. Direct wallet-to-wallet transfers between individuals stay untouched. The charge applies to the gross value, so a user owes it on the full amount even on a trade that loses money.

Any out-of-state broker clearing more than $100,000 a year from Illinois residents falls under it. Brokers register with the state and collect the tax much like a sales tax, so the cost flows straight to users through higher fees and wider spreads. The companies that live on thin margins and high volume will feel it first, while market makers and arbitrage desks will be the ones most likely to widen spreads or geofence the state entirely.

The state’s case is easy to follow, and it’s much harder to preempt than a securities rule. Illinois is taxing commercial activity that touches its residents and routing the money into its budget.

It’s using the same power it leans on for plenty of other industries, so it can credibly claim it’s taken no position at all on what crypto is or who gets to issue it. Industry groups estimate the levy pulls in roughly $60 million a year. The Crypto Council for Innovation has called it the most punitive digital-asset tax in the country, because there’s no comparable state charge on trades of stocks, bonds, or derivatives.

That singling out is the legal weak spot worth watching. It will most likely be a slow, uncertain fight in court, though, and the tax will stay live while it plays out.

The industry is worried about this because of the precedent it sets.

A federal rulebook loses much of its appeal if every budget-stressed state can stack its own cost layer on top. One national framework could turn into fifty separate toll booths, and a 0.2% charge compounds fast across the high-frequency transfers that are one of the founding characteristics of crypto trading.

To kill it off, Congress would have to address it directly, either in a separate act or an amendment to an existing one. Lawmakers would have to expressly bar states from taxing digital-asset transactions, or block them from treating crypto worse than comparable financial products.

Both GENIUS and the current CLARITY act drafts leave that language out, so the states keep their room. State bank supervisors have even asked lawmakers to confirm that more protective state limits survive the federal bill. That tells us that the people who run state regimes fully expect to keep a lane no matter what passes.

So the industry is close to getting the thing it lobbied hardest for, a federal answer to what crypto is and who watches it. Illinois is the reminder that the answer settles only half the bill. GENIUS and CLARITY can make a token legal, supervised, and identically defined across the US. A state can still decide that every time one of its residents touches that token, it’s owed 0.2%. Washington is close to giving crypto one rulebook, but it still hasn’t given it one price.

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