Has Montana sued Kalshi or ordered it to stop?

Yes. Sept. 21, 2026: The court dismissed the case on a joint stipulation filed Sept. 17, 2026: claims against the five commission members with prejudice, and against the attorney general, a Division official and the Division without prejudice. The defendants agreed not to begin enforcement over Kalshi's event contracts until Kalshi's Ninth Circuit rehearing bid in KalshiEX v. Assad is resolved, after which the attorney general's side must give 30 days' written notice. Aug. 27, 2026: Judge Donald Molloy denied Kalshi's preliminary injunction without prejudice, finding it had not shown likely irreparable harm after repeatedly agreeing to pause the case. April 6, 2026: The Division sent a second cease-and-desist letter, saying the earlier forbearance depended on Kalshi's Nevada injunction, which had since been dissolved. March 26, 2025: The Gambling Control Division's chief legal counsel ordered KalshiEX to stop letting people in Montana trade sports event contracts, citing state gambling and sports-wagering statutes and warning of legal action.

How old do you have to be to use Kalshi in Montana?

18. That is Kalshi's minimum age, and it lists no different rule for Montana.

Is sports betting legal in Montana?

Retail only. Lottery-run sports betting; the app works only at authorized licensed locations.

Which court will decide whether Montana can regulate Kalshi?

Federal appeals from Montana go to the Ninth Circuit, which ruled for the states on Aug. 28, 2026. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.

MT · Kalshi · Checked Oct. 21, 2026

Is Kalshi legal in Montana?

No restriction found Montana: Enforcement, no lawsuit

The short answer

Kalshi does not publish a list of states where it is unavailable, and we found no court order, regulator action or Kalshi notice that stops it from serving Montana as of Oct. 22, 2026.

Montana has 6 public actions on record that name Kalshi. The latest (court order, Sept. 21, 2026): The court dismissed the case on a joint stipulation filed Sept. 17, 2026: claims against the five commission members with prejudice, and against the attorney general, a Division official and the Division without prejudice. The defendants agreed not to begin enforcement over Kalshi's event contracts until Kalshi's Ninth Circuit rehearing bid in KalshiEX v. Assad is resolved, after which the attorney general's side must give 30 days' written notice.

Federal appeals from Montana go to the Ninth Circuit, which ruled for the states on Aug. 28, 2026.

Availability: Kalshi Help Center: Signing Up as an Individual (updated March 10, 2026), checked Oct. 22, 2026. A summary of public actions, not legal advice.

Follow Montana

Cite this page

Bluebook

Is Kalshi Legal in Montana?, Prediction Market Laws (last updated Oct. 22, 2026), https://predictionmarketlaws.com/platforms/kalshi/montana.

APA

Prediction Market Laws. (2026, October 22). Is Kalshi Legal in Montana?. https://predictionmarketlaws.com/platforms/kalshi/montana

What Montana has done about Kalshi

Sept. 21, 2026
Court order
The court dismissed the case on a joint stipulation filed Sept. 17, 2026: claims against the five commission members with prejudice, and against the attorney general, a Division official and the Division without prejudice. The defendants agreed not to begin enforcement over Kalshi's event contracts until Kalshi's Ninth Circuit rehearing bid in KalshiEX v. Assad is resolved, after which the attorney general's side must give 30 days' written notice.
Source: Joint stipulation of dismissal, D. Mont. No. 6:26-cv-00028 (via DeFi Rate)
Aug. 27, 2026
Court order
Judge Donald Molloy denied Kalshi's preliminary injunction without prejudice, finding it had not shown likely irreparable harm after repeatedly agreeing to pause the case.
Source: InGame
April 12, 2026
Operator lawsuit
Kalshi sued Attorney General Austin Knudsen, Gambling Control Division officials and five commission members in the District of Montana (No. 6:26-cv-00028), seeking to block enforcement on federal preemption grounds.
Source: SBC Americas
April 6, 2026
Cease-and-desist
The Division sent a second cease-and-desist letter, saying the earlier forbearance depended on Kalshi's Nevada injunction, which had since been dissolved.
Source: SBC Americas
April 16, 2025
Other development
According to Kalshi's later complaint, the Division confirmed in writing that it would not enforce against Kalshi while Kalshi's Nevada litigation was pending and would give notice first.
Source: SBC Americas
March 26, 2025
Cease-and-desist
The Gambling Control Division's chief legal counsel ordered KalshiEX to stop letting people in Montana trade sports event contracts, citing state gambling and sports-wagering statutes and warning of legal action.
Source: Montana DOJ Gambling Control Division letter (via KTVH/Scripps)

Court cases

KalshiEX LLC v. KnudsenU.S. District Court for the District of Montana, 6:26-cv-00028Dismissed

The legal backdrop in Montana

State status: Enforcement, no lawsuitState officials have sent cease-and-desist letters or taken other enforcement steps, but we found no active litigation.
Online sports betting: Retail onlyLottery-run sports betting; the app works only at authorized licensed locations.
Federal appeals court: Ninth CircuitRuled for the states.
Who regulates: Montana Lottery (Sports Bet Montana); Montana DOJ Gambling Control Division; Montana Attorney General
Laws and bills: None specific to prediction markets

Using Kalshi in Montana

Minimum age: 18
Identity checks: Kalshi requires legal name, date of birth and a residential address (no commercial addresses or PO boxes) that match a government ID. It asks for a live in-app photo of a driver's license or passport. It may also ask for proof of address, employment information or source of funds. It may request a Social Security number at any point after signup, which it uses for identity verification and tax reporting; an SSN is not required to deposit. (Help articles updated June 30 and August 25, 2026.) Source
Tax forms: Kalshi says users who meet IRS reporting thresholds get Form 1099-INT (interest), 1099-MISC (credits and rewards), 1099-B (proceeds from crypto transfers) and 1099-DA (digital asset reporting from ZeroHash). The forms appear under Tax Info in the Account tab, and some are emailed through Zenwork. Kalshi gives no dollar thresholds or issue dates. Trading profit-and-loss statements are in the documents tab (help article updated June 22, 2026). SourceWhat the platform says it reports; not tax advice.

Other platforms in Montana

KalshiNo restriction found
Polymarket USNo restriction found
Gemini PredictionsNo restriction found
RobinhoodNo restriction found
Crypto.comNo restriction found
CoinbaseNo restriction found
WebullNo restriction found
DraftKings PredictionsSports blocked
FanDuel PredictsOffered
UnderdogOffered
PrizePicksOffered
Fanatics MarketsNot offered

Questions people ask

Is Kalshi legal in Montana?: Kalshi does not publish a list of states where it is unavailable, and we found no court order, regulator action or Kalshi notice that stops it from serving Montana as of Oct. 22, 2026. Montana has 6 public actions on record that name Kalshi. The latest (court order, Sept. 21, 2026): The court dismissed the case on a joint stipulation filed Sept. 17, 2026: claims against the five commission members with prejudice, and against the attorney general, a Division official and the Division without prejudice. The defendants agreed not to begin enforcement over Kalshi's event contracts until Kalshi's Ninth Circuit rehearing bid in KalshiEX v. Assad is resolved, after which the attorney general's side must give 30 days' written notice. This summarises public actions; it is not legal advice.
Has Montana sued Kalshi or ordered it to stop?: Yes. Sept. 21, 2026: The court dismissed the case on a joint stipulation filed Sept. 17, 2026: claims against the five commission members with prejudice, and against the attorney general, a Division official and the Division without prejudice. The defendants agreed not to begin enforcement over Kalshi's event contracts until Kalshi's Ninth Circuit rehearing bid in KalshiEX v. Assad is resolved, after which the attorney general's side must give 30 days' written notice. Aug. 27, 2026: Judge Donald Molloy denied Kalshi's preliminary injunction without prejudice, finding it had not shown likely irreparable harm after repeatedly agreeing to pause the case. April 6, 2026: The Division sent a second cease-and-desist letter, saying the earlier forbearance depended on Kalshi's Nevada injunction, which had since been dissolved. March 26, 2025: The Gambling Control Division's chief legal counsel ordered KalshiEX to stop letting people in Montana trade sports event contracts, citing state gambling and sports-wagering statutes and warning of legal action.
How old do you have to be to use Kalshi in Montana?: 18. That is Kalshi's minimum age, and it lists no different rule for Montana.
Is sports betting legal in Montana?: Retail only. Lottery-run sports betting; the app works only at authorized licensed locations.
Which court will decide whether Montana can regulate Kalshi?: Federal appeals from Montana go to the Ninth Circuit, which ruled for the states on Aug. 28, 2026. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.