Is Kalshi Legal in Arizona? Fully Available Under a Federal Injunction, Criminal Case Frozen

Open Kalshi from an Arizona address today and you get the whole platform — sports, elections, economics, weather, entertainment — with no Arizona geofence. Not because the fight is over: a federal judge in Arizona entered a preliminary injunction on May 5, 2026 barring Arizona officials from enforcing the state’s gambling laws against event contracts on CFTC-regulated exchanges, freezing the 20-count criminal case the state had filed against Kalshi’s operating companies. Two details matter: the federal government won that injunction, not Kalshi (whose own motion was denied and is on appeal), and it is preliminary — protection while appeals run, not a final ruling. Everything below holds as of August 2026.

What happened in Arizona

Arizona’s is the most escalated state fight in the country — the only one to reach criminal charges. The sequence:

• May 21, 2025 — The Arizona Department of Gaming sends Kalshi a cease-and-desist asserting unlicensed event wagering — the seventh state to send one; similar letters reportedly went to Robinhood and Crypto.com.
• March 12, 2026 — Kalshi sues ADG Director Jackie Johnson, Attorney General Kris Mayes, and other officials in federal court to block enforcement of Arizona’s gambling statutes.
• March 16–17, 2026 — The state files a 20-count misdemeanor criminal information against KalshiEx LLC and Kalshi Trading LLC in Maricopa County, announced by Mayes the next day — the first criminal case against a prediction-market operator, alleging unlicensed gambling on sports, player props, and Arizona’s own elections. Kalshi’s same-day emergency-order request is denied.
• April 2, 2026 — The CFTC and the United States sue Arizona officials, arguing federal law preempts the state’s enforcement; the case is consolidated with Kalshi’s.
• April 8–10, 2026 — Judge Michael Liburdi denies Kalshi’s own injunction motion, citing the ongoing state prosecution — then, two days later, grants the federal government a temporary restraining order barring Arizona from criminal or civil enforcement against event contracts on CFTC-regulated exchanges.
• May 5, 2026 — The court dissolves the TRO and grants the CFTC a preliminary injunction — the order in force today. Some outlets called it permanent; the docket is clear that it is preliminary.
• May–July 2026 — Everything freezes. Kalshi appeals its injunction denial (Ninth Circuit No. 26-2978, noticed May 8), the district case is stayed by agreement May 18, the Ninth Circuit stays that appeal June 4 pending three consolidated Nevada cases, and Arizona appeals the injunction July 6, docketed in the Ninth Circuit July 10 — the district docket has been silent since, as of August 31, 2026.

What you can trade in Arizona right now

• Sports event contracts: available, as of August 31, 2026. Kalshi applies no Arizona geofence — its only state geofence is Nevada (see the 50-state tracker) — and CBS Sports’ 50-state guide (updated August 19, 2026) lists Arizona as live for its sports markets.
• Election markets: available, as of August 31, 2026. Four of Arizona’s 20 criminal counts were for election wagering on Arizona’s own races; those markets trade anyway because the prosecution is enjoined. Court-ordered protection, and preliminary at that — not a settled right.
• Economics, weather, entertainment, and the rest: available, as of August 31, 2026. The injunction covers event contracts on CFTC-regulated exchanges as a class, not any single category.

What about Polymarket and Robinhood?

The May 5 order reaches event contracts on any CFTC-regulated exchange — Polymarket’s licensed US exchange and the exchanges behind Robinhood’s contracts included — but availability still differs by platform.

Polymarket serves Arizona residents through its US relaunch on a CFTC-licensed exchange, but withholds sports markets from Arizona users — CBS Sports’ guide (August 19, 2026) notes Kalshi offers sports predictions in the state while Polymarket does not. Politics, economics, crypto, and entertainment trade with identity verification. Nothing in the record forces the withhold: no court order requires it, we found no agency release showing Arizona ever sent Polymarket its own cease-and-desist, and the criminal case named only the Kalshi entities. It reads as the platform’s own risk call.

Robinhood received its own ADG cease-and-desist in May 2025, reported alongside Kalshi’s and Crypto.com’s. Today its event-contracts support page (retrieved August 20, 2026) lists no Arizona restriction — its only stated exclusions are Maryland and Nevada — so Arizona residents can trade Robinhood’s event contracts, sports included (see our Robinhood event contracts review). One trade-press report claimed Robinhood pulled event contracts from Arizona after the letter; we could not confirm that from a primary source, and the current page contradicts it.

Why Arizona is fighting

The legal question is the one running through every state case: is a contract that pays out on an election or a game result a federally regulated swap or a state-regulated bet? Kalshi and the CFTC argue the CFTC has exclusive jurisdiction over contracts on its regulated exchanges; Arizona argues unlicensed gambling. Our 50-state tracker walks through the doctrine, and our gambling-or-investing explainer covers the product question. What sets Arizona apart is how far it went.

Arizona filed the first criminal charges ever brought against a prediction-market operator — 20 misdemeanor counts, four of them for taking bets on Arizona’s own elections.

The money helps explain the aggression. Arizona has had licensed sports betting since September 2021 under its event-wagering law, with licenses tied to tribes and pro franchises; the ADG’s revenue reports show roughly $443 million in FY2025 adjusted gross event-wagering receipts subject to privilege fees, and tribal casinos generate on the order of $3 billion a year under compacts that pay the state. Prediction markets pay no privilege fees and sit outside that tribal-exclusivity bargain. Add the attorney general’s distinct grievance — markets on Arizona’s own elections, the 2026 governor’s race included — and you get the country’s only criminal prosecution.

What could change next

Nothing is scheduled: the state’s own appeal, docketed in July, had no publicly verified briefing schedule as of August 31, 2026. The district case and Kalshi’s appeal are stayed pending the Ninth Circuit’s decision in three consolidated Nevada cases — brought by Kalshi, Crypto.com’s exchange, and Robinhood’s derivatives arm — issued August 28, 2026, affirming that Kalshi’s sports event contracts likely are not swaps and remanding election contracts. That opinion does not itself dissolve Arizona’s May 5 federal injunction (won by CFTC/DOJ, not Kalshi). Kalshi’s Arizona appeal (No. 26-2978) remains stayed pending issuance of the Nevada mandates; the district docket has been silent since July 10, with no public confer filing yet on whether the May 18 stay continues. Arizona’s own appeal of the May 5 injunction, noticed July 6, 2026, is also pending. Today’s wide-open availability rests on one preliminary order, and the court deciding the Nevada cases will shape its fate.

Frequently asked questions

Can I get in trouble for trading on Kalshi in Arizona?

Every enforcement action in the Arizona record targets companies, not traders: the cease-and-desists went to platforms, and the criminal information charged KalshiEx LLC and Kalshi Trading LLC, not any user — and that prosecution is itself enjoined for now. That is an observation about the record, not a guarantee about the future. Separately, trading profits carry tax obligations — our prediction-market taxes guide covers them.

Is Polymarket legal in Arizona?

Polymarket serves Arizona residents, its contracts sit inside the same May 5, 2026 injunction shield, and we found no confirmed Arizona enforcement action against it — but it offers no sports markets in Arizona, a withhold no court ordered. Our Polymarket review covers the platform itself.

Is regular sports betting legal in Arizona?

Yes — licensed retail and mobile betting launched statewide in September 2021 under the event-wagering law, regulated by the Department of Gaming. That licensed, fee-paying industry is much of why the state is fighting platforms that list the same games without either.

Is the Arizona injunction permanent?

No. Some outlets described the May 5, 2026 order as permanent; the docket shows a preliminary injunction — in force while the case proceeds, no more. Arizona has appealed it, and the protection it provides is contingent on the pending appeals.

Part of our 50-state legality tracker — see every state. Last verified August 31, 2026.