New York’s Polymarket lawsuit: what readers need to know

This is general information, not legal advice.

Kalshi (opens in a new tab) and Polymarket US (opens in a new tab) are Available, dispute pending (as of October 13, 2026) in New York. The state sued Kalshi on July 31, 2026 and Polymarket US on September 24, 2026; no court order blocks them. Check account, contract and location eligibility before funding.

What did New York announce?

The attorney general’s September 24 announcement identifies QCX LLC, doing business as Polymarket US, as the defendant. The state alleges unlicensed gambling and is asking for relief including an order stopping the challenged operation, financial penalties, and consumer restitution. These are the state’s claims and requests.

Why does the exchange’s identity matter?

Polymarket US and the international Polymarket platform are separate. The U.S. exchange appears in the CFTC register as QCX LLC d/b/a Polymarket US. When a report says “Polymarket,” check which entity it is discussing. A global market screenshot is not evidence of what is available to a New York account.

What does a lawsuit announcement not establish?

A lawsuit announcement does not establish a final judgment, a completed withdrawal restriction, or the exact market catalog a particular customer can access. This article does not establish the latest docket outcome. Readers should check later court orders, exchange notices, and account-specific restrictions before acting.

Which legal developments should you check next?

Has a court entered an order? Does it apply to the exchange, a distributor, or particular products? When does it take effect? Does the platform describe how existing positions, settlement, and withdrawals are handled? Those questions are more useful than reducing a developing dispute to a permanent yes-or-no label.

How should you use this coverage?

Read the original announcement linked below. For the broader distinctions between federal exchange status, state law, and account access, see our New York guide. If you are comparing platforms, review the dated New York note in each profile. A promotion’s state list is not a substitute for that check.

Sources

• New York AG: Polymarket lawsuit, September 24, 2026 (opens in a new tab) — checked October 14, 2026
• CFTC designated contract market register (opens in a new tab) — checked October 14, 2026
• Polymarket US market integrity and rulebook — checked September 26, 2026

Frequently asked questions

Does the lawsuit mean Polymarket US has already lost?

No. The cited announcement describes a lawsuit and requested relief. It is not a final merits decision.

Is Polymarket US the same as the international website?

No. The U.S. exchange is operated by QCX LLC. The international platform has separate access rules and documentation.

What is a prediction market contract?

It is a contract tied to a defined event. Read its resolution criteria, deadline, settlement source and exception rules.

Does a $1 payout mean $1 profit?

No. Profit is payout minus purchase cost and applicable fees. A losing contract can lose the amount paid and fees.