Is Kalshi legal in Maine?

We found no court order or regulator action stopping Kalshi from serving Maine, as of Oct. 22, 2026. Maine's status on prediction markets: no public action found. Details are on our Kalshi in Maine page.

Is Polymarket legal in Maine?

We found no court order or regulator action stopping Polymarket from serving Maine, as of Oct. 28, 2026. Maine's status on prediction markets: no public action found. Details are on our Polymarket in Maine page.

What is the difference between a sportsbook and a prediction market?

A sportsbook takes the other side of each bet and keeps what bettors lose, under a state license. A prediction market is a federally regulated exchange that matches users with each other and charges a fee, which is why platforms argue state gambling law does not reach them.

Maine · Sports betting

Is sports betting legal in Maine?

Where sportsbooks stand in Maine, where Kalshi, Polymarket and other prediction markets stand, and why the answers differ. Built from our sourced state records.

Reviewed Oct. 21, 2026 · Live figures update with our records · Sources are footnoted

Sportsbooks: Legal onlineKalshi: No restriction found

The short answer

Yes. Online sports betting is legal in Maine. Mobile-only market (no retail) launched Nov. 3, 2023.¹

Prediction markets are a separate question: we found no court order or regulator action stopping Kalshi from offering sports contracts in Maine, as of Oct. 22, 2026.

Sportsbooks in Maine

Sports betting in Maine is legal online. Mobile-only market (no retail) launched Nov. 3, 2023.¹ Gaming oversight: Maine Gambling Control Unit.

Prediction markets in Maine

Our status for Maine: No public action found. We found no public enforcement, litigation or enacted law. Pending bills may still be listed on the state's page. No Maine lawsuit, cease-and-desist letter or prediction-market law was found; the attorney general backed New Jersey's Supreme Court petition.

Latest action (Other development, Oct. 7, 2026): Maine's attorney general signed an Ohio-led amicus brief, joined by 38 other states and DC, asking the U.S. Supreme Court to grant New Jersey's petition in Flaherty v. KalshiEX (No. 26-299).²

We track no lawsuits involving Maine. Federal appeals from Maine go to the First Circuit, where an appeal on the question is pending. Full record: prediction market laws in Maine.

Which prediction market apps work in Maine

Prediction market platforms in Maine
Platform	In Maine	Note
Kalshi	No restriction found
Polymarket US	No restriction found
Coinbase	No restriction found	Contracts trade on Kalshi.
Crypto.com	No restriction found	Contracts trade on Crypto.com \| Derivatives North America (North American Derivatives Exchange, Inc.), an affiliated CFTC-registered exchange and clearinghouse; Crypto.com's 2026-09-08 release places this entity under the OG.com spin-off.
DraftKings Predictions	Not offered	No DraftKings Predictions markets are available. New Hampshire is the same.
Fanatics Markets	Offered	Contracts trade on Crypto.com \| Derivatives North America (Nadex rules).
FanDuel Predicts	Offered	Contracts trade on CME Group (financial contracts) and Crypto.com \| Derivatives North America / OG (sports, entertainment and combination contracts).
Gemini Predictions	No restriction found
PrizePicks	Offered	Contracts trade on Kalshi.
Robinhood	No restriction found	Contracts trade on KalshiEX, ForecastEx and Rothera Exchange and Clearing (a Robinhood joint venture with SIG); since 2026-09-08 also OG.com's North American Derivatives Exchange, Inc..
Underdog	Offered	Contracts trade on Underdog's own exchange UDX (Aristotle Exchange DCM/DCO, Inc. d/b/a Underdog Exchange), plus Kalshi and Nadex (Crypto.com \| Derivatives North America).
Webull	No restriction found	Contracts trade on Kalshi.

“No restriction found” means we know of no court order, regulator action or platform notice stopping it in Maine; it is not a finding that it is legal there.

Why the answers differ

A sportsbook takes the other side of each bet and keeps what bettors lose.³ It needs a license from the state. A prediction market is an exchange that matches users with each other and takes a fee,³ and the large ones are regulated by the CFTC, whose jurisdiction over trading on those exchanges federal law calls exclusive.⁴ That is the platforms’ case for offering sports contracts nationwide; by the 2025 Super Bowl, Kalshi offered them in all 50 states, including states without legal sports betting.⁵

States answer that sports event contracts are sports bets by another name; Massachusetts, for one, says Kalshi’s closely resemble wagers at licensed sportsbooks.⁶ Federal appeals courts have split, 1 for the platforms and 2 for the states, and 3 petitions now ask the Supreme Court to decide: see the circuit split.

Age limits

Kalshi and Polymarket US accept customers from 18,⁷⁸ while most states set the gambling age at 20 or 21, a gap critics including the NCAA have raised.⁹ See how old you have to be. If gambling is causing you harm, call or text 1-800-GAMBLER.

Questions

Is sports betting legal in Maine?: Yes. Online sports betting is legal in Maine. Mobile-only market (no retail) launched Nov. 3, 2023.
Who regulates sports betting in Maine?: Maine Gambling Control Unit.
Is Kalshi legal in Maine?: We found no court order or regulator action stopping Kalshi from serving Maine, as of Oct. 22, 2026. Maine's status on prediction markets: no public action found. Details are on our Kalshi in Maine page.
Is Polymarket legal in Maine?: We found no court order or regulator action stopping Polymarket from serving Maine, as of Oct. 28, 2026. Maine's status on prediction markets: no public action found. Details are on our Polymarket in Maine page.
What is the difference between a sportsbook and a prediction market?: A sportsbook takes the other side of each bet and keeps what bettors lose, under a state license. A prediction market is a federally regulated exchange that matches users with each other and charges a fee, which is why platforms argue state gambling law does not reach them.