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Prediction markets

Prediction Markets in Arizona

Status as of October 3, 2026: Kalshi, Polymarket US and ProphetX available, dispute pending; OG and Novig not offered. What the courts and the state have done, with dated sources.

Quick Verdict: Kalshi, Polymarket US and ProphetX available, dispute pending; OG and Novig not offered

Kalshi, Polymarket US and ProphetX: Available, dispute pending; OG and Novig: not offered in Arizona. Arizona charged Kalshi criminally in March 2026, but a federal preliminary injunction (May 2026) bars the state from proceeding while the case continues. (source (opens in a new tab))

Nationally: Federal appeals courts are split on sports event contracts, all at the preliminary-injunction stage: the Third Circuit sided with Kalshi (Apr 6, 2026), the Ninth (Aug 28, 2026) and Sixth (Sep 25, 2026) sided with the states, and three Supreme Court petitions (Nos. 26-299, 26-338, 26-344) are pending; none has been granted.

  • Status (as of October 3, 2026): Kalshi, Polymarket US and ProphetX: Available, dispute pending; OG and Novig: not offered in Arizona.
  • Why: Arizona charged Kalshi criminally in March 2026, but a federal preliminary injunction (May 2026) bars the state from proceeding while the case continues.
  • Welcome offers that apply to Arizona residents (partner terms of Oct 1, 2026): Kalshi, Polymarket US, ProphetX. Not valid here: OG, Novig, Rebet.
  • Age: Kalshi, Polymarket US, OG and Rebet set 18 as the minimum (ProphetX: 18 or the local age of majority if higher); Novig sets 21. We recommend 21+.
  • Status describes whether each platform accepts Arizona residents, not whether trading is legal. We do not give legal advice.

Best offer right now

Kalshi logo

Kalshi

Score 92/100

Trade $25 and Get $25!

Trade $25 in event contracts and get $25 in credit. Use code RANKPREDICTS at signup.

Code: RANKPREDICTS

Claim $25 credit (opens in a new tab)

21+ · Terms apply · Verified Sep 2

Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.

Full offer details →

Status in Arizona as of October 3, 2026

PlatformStatusWhy (source)Welcome offer in Arizona
KalshiAvailable, dispute pendingKalshi accepts Arizona residents under a federal court injunction that protects it; Arizona charged Kalshi criminally in March 2026 and the case is paused by a federal preliminary injunction (May 2026) while it continues; Arizona is in the Ninth Circuit. (source (opens in a new tab))Valid: Trade $25 and Get $25!
Polymarket USAvailable, dispute pendingPolymarket US accepts Arizona residents; Arizona charged Kalshi criminally in March 2026, but a federal preliminary injunction (May 2026) bars the state from proceeding while the case continues. (source (opens in a new tab))Valid: Deposit $10 get a $25 Trading Bonus!
ProphetXAvailable, dispute pendingProphetX accepts Arizona residents; Arizona charged Kalshi criminally in March 2026, but a federal preliminary injunction (May 2026) bars the state from proceeding while the case continues. (source (opens in a new tab))Valid: Trade $50, Earn $75!
OG (by Crypto.com)Not offeredOG says it operates in every state but that some contracts are not available everywhere; Crypto.com said in Dec 2025 that it does not offer sports contracts in Arizona, and the OG welcome offer excludes Arizona. (source (opens in a new tab))Not valid here
NovigNot offeredNovig says it is available nationwide except Arizona, Michigan and Nevada, so it does not accept traders physically located in Arizona. (source)Not valid here
RebetNot offeredRebet is a sweepstakes app, not a CFTC-regulated exchange; its sweepstakes rules exclude Arizona. (source)Not valid here

What changed (newest first)

Arizona's Established Sports Betting Market

Arizona launched a thriving legal mobile sports betting market in September 2021. The state’s framework was established through updated tribal gaming compacts and a new state law that authorized up to 20 online sports betting licenses—10 for an Arizona-based professional sports team/franchise and 10 for a federally recognized tribe. This created a competitive in-state market and made Arizona one of the largest legal sports gambling hubs in the nation.

Major operators like FanDuel, DraftKings, BetMGM, and Caesars quickly went live and have been accepting wagers since. However, the state’s sports betting law includes specific prohibitions, including a ban on wagering on political elections. It was this established legal framework, and the prohibitions within it, that formed the basis of the Arizona Attorney General’s argument that Kalshi was operating outside the law.

What AZ Residents Can Trade Right Now

Arizonans using Kalshi can currently trade on a variety of event contracts. While the platform voluntarily avoids markets directly tied to election outcomes to mitigate regulatory friction, users can still engage with markets related to sports, finance, and culture. For example, a user could trade on whether the Phoenix Suns will make the playoffs, if the Arizona Cardinals will have a winning season, whether the Arizona Diamondbacks will win their next series, or if Arizona State University will reach a certain stage in a collegiate tournament.

Tax Considerations for Arizona Residents

For Arizona residents, any gains from prediction markets are subject to taxation. Winnings are considered income and must be reported on both federal and state tax returns.

Arizona has a flat state income tax rate of 2.5%. Therefore, in addition to any federal taxes owed, gains from trading on platforms like Kalshi would be taxed at this rate by the state. It is advisable for active traders to consult with a tax professional to ensure they are meeting all their obligations.

What could change the status

Dates we are watching: Nevada's responses to the Robinhood and Crypto.com Supreme Court petitions are now due November 13 and 16, 2026 (both extended in October), and Kalshi's response to New Jersey's petition is due November 9, 2026 (deadlines can be extended); the earliest the Supreme Court could act on the petitions is a conference in December 2026 or January 2027 (our estimate, not a scheduled date); the Ninth Circuit has not yet decided Kalshi's request for a rehearing by the full court. We re-check this page when any of these happen and log the change above.

Best Platforms Compared

Platform

Score

Promo

Action

Polymarket US

A global prediction market, now a CFTC-regulated US app that trades in dollars

95

See current offer →

Claim $25 bonus (opens in a new tab)

Kalshi

The gold standard for regulated US event contracts

94

Trade $25, get $25 — code RANKPREDICTS

Claim $25 credit (opens in a new tab)

Robinhood

The easiest entry point for US retail traders

88

See current offer →

Try Kalshi instead (opens in a new tab)

DraftKings Predictions

Sports-first prediction markets from America's leading sportsbook

82

See current offer →

Try Kalshi instead (opens in a new tab)

Prediction markets in other states

§ References & Sources

  1. Commodity Futures Trading Commission (CFTC) (opens in a new tab)— U.S. federal regulator
  2. CFTC Designated Contract Markets list (opens in a new tab)— CFTC
  3. 26 U.S. Code § 1256 — Section 1256 contracts marked to market (opens in a new tab)— Cornell Law / U.S. Code
  4. IRS Form 6781 — Gains and Losses From Section 1256 Contracts (opens in a new tab)— Internal Revenue Service
  5. National Council on Problem Gambling — 1-800-GAMBLER (opens in a new tab)— NCPG

Frequently asked questions

Are prediction markets legal in Arizona?

We don't give legal verdicts, but here is the status as of October 3, 2026: Kalshi, Polymarket US and ProphetX: Available, dispute pending; OG and Novig: not offered in Arizona. Arizona charged Kalshi criminally in March 2026, but a federal preliminary injunction (May 2026) bars the state from proceeding while the case continues. Nationally, federal appeals courts are split on sports event contracts, all at the preliminary-injunction stage, and three Supreme Court petitions are pending; none has been granted.

Can I use Kalshi in Arizona?

Status as of October 3, 2026: Available, dispute pending. Kalshi accepts Arizona residents under a federal court injunction that protects it; Arizona charged Kalshi criminally in March 2026 and the case is paused by a federal preliminary injunction (May 2026) while it continues; Arizona is in the Ninth Circuit. Kalshi's welcome offer (Trade $25 and Get $25!) applies to Arizona residents. Kalshi's minimum age is 18; we recommend 21+.

What has Arizona done about prediction markets?

Arizona charged Kalshi criminally in March 2026, but a federal preliminary injunction (May 2026) bars the state from proceeding while the case continues. Most recent entries in our timeline: Jul 9, 2026: Arizona governor bars state employees from insider trading on prediction markets; May 5, 2026: Federal judge grants injunction halting Arizona action against Kalshi; Apr 10, 2026: Federal court temporarily blocks Arizona criminal proceedings against CFTC-regulated exchanges. Each entry above links to its source.

What could change the status in Arizona?

Dates we are watching: Nevada's responses to the Robinhood and Crypto.com Supreme Court petitions are now due November 13 and 16, 2026 (both extended in October), and Kalshi's response to New Jersey's petition is due November 9, 2026 (deadlines can be extended); the earliest the Supreme Court could act on the petitions is a conference in December 2026 or January 2027 (our estimate, not a scheduled date); the Ninth Circuit has not yet decided Kalshi's request for a rehearing by the full court. We re-check this page when any of these happen and log the change above.