Has Maine sued Polymarket US or ordered it to stop?

Not that we have found. We have no cease-and-desist letter, state lawsuit, court order or settlement in Maine that names Polymarket US, as of Oct. 21, 2026.

How old do you have to be to use Polymarket US in Maine?

18. That is Polymarket US's minimum age, and it lists no different rule for Maine.

Is sports betting legal in Maine?

Legal online. Mobile-only market (no retail) launched Nov. 3, 2023.

Which court will decide whether Maine can regulate Polymarket US?

Federal appeals from Maine go to the First Circuit, where an appeal on the question is pending. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.

ME · Polymarket US · Checked Oct. 21, 2026

Is Polymarket US legal in Maine?

No restriction found Maine: No public action found

The short answer

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

We found no public action by Maine officials against Polymarket US or any other prediction market.

Federal appeals from Maine go to the First Circuit, where an appeal on the question is pending.

Availability: Polymarket App Terms & Conditions (ISV Front End), effective October 22, 2026 (embedded at polymarket.us/tos), checked Oct. 22, 2026. A summary of public actions, not legal advice.

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Cite this page

Bluebook

Is Polymarket US Legal in Maine?, Prediction Market Laws (last updated Oct. 22, 2026), https://predictionmarketlaws.com/platforms/polymarket/maine.

APA

Prediction Market Laws. (2026, October 22). Is Polymarket US Legal in Maine?. https://predictionmarketlaws.com/platforms/polymarket/maine

What Maine has done about Polymarket US

No public action by Maine names Polymarket US. Maine has taken 1 other action on prediction markets: see prediction market law in Maine.

Court cases

We track no case between Polymarket US and Maine.

The legal backdrop in Maine

State status: No public action foundWe found no public enforcement, litigation or enacted law. Pending bills may still be listed on the state's page.
Online sports betting: Legal onlineMobile-only market (no retail) launched Nov. 3, 2023.
Federal appeals court: First CircuitAppeal pending.
Who regulates: Maine Gambling Control Unit; Maine Attorney General
Laws and bills: None specific to prediction markets

Using Polymarket US in Maine

Minimum age: 18
Identity checks: Polymarket US requires date of birth, a phone number confirmed by text code, legal name, residential address and Social Security number. Most users are verified automatically; others may be asked for a government-issued ID and a selfie check. KYC must be completed before depositing or trading, and the terms require KYC, AML and sanctions screening. Source

Other platforms in Maine

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 PredictionsNot offered
FanDuel PredictsOffered
UnderdogOffered
PrizePicksOffered
Fanatics MarketsOffered

Questions people ask

Is Polymarket US legal in Maine?: Polymarket US does not publish a list of states where it is unavailable, and we found no court order, regulator action or Polymarket US notice that stops it from serving Maine as of Oct. 22, 2026. We found no public action by Maine officials against Polymarket US or any other prediction market. This summarises public actions; it is not legal advice.
Has Maine sued Polymarket US or ordered it to stop?: Not that we have found. We have no cease-and-desist letter, state lawsuit, court order or settlement in Maine that names Polymarket US, as of Oct. 21, 2026.
How old do you have to be to use Polymarket US in Maine?: 18. That is Polymarket US's minimum age, and it lists no different rule for Maine.
Is sports betting legal in Maine?: Legal online. Mobile-only market (no retail) launched Nov. 3, 2023.
Which court will decide whether Maine can regulate Polymarket US?: Federal appeals from Maine go to the First Circuit, where an appeal on the question is pending. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.