Lesson 10·Regulation & Risk·7 min read

Are Prediction Markets Legal in the US? Sourced Checklist

US access depends on the product, where you are, and the specific contract. Here's a sourced checklist — not legal advice.

Published January 15, 2026 · Sources reviewed October 26, 2026

This guide does not give a legal opinion and does not report the current outcome of any court case. It summarizes a few primary sources, reviewed on October 26, 2026, and gives a checklist for working out what applies to you. If anything stays unclear, the answer is official platform support or qualified counsel — never a workaround.

What the primary sources say

Kalshi: a 2020 CFTC press release announced Kalshi's designation as a designated contract market (DCM). That is a federal designation from 2020; it is not, by itself, a statement about every contract, every state, or today's status.

Federal–state dispute: a CFTC press release dated June 12, 2026 announced a CFTC lawsuit against New Mexico. In it, the CFTC asserts its jurisdiction over event contracts, which the state contests. This guide does not state how that case or any other has been decided.

Polymarket's international platform: Polymarket's geoblock documentation lists the United States as close-only for the international front end and API — users there can close existing positions but not open new ones. That is a specific access rule, not a universal statement about all Polymarket products.

Polymarket US: Polymarket US: Polymarket's US documentation describes a separately operated US product and includes order examples denominated in USD. Its account and eligibility terms are in that product's own documentation; this guide does not summarize them.

Which source answers which question

There is no simple ranking where one kind of document always wins. Match the source to the question.

Is it legal for me? Applicable current law, court orders and regulator orders govern, as interpreted by qualified counsel for your situation.

What has a regulator or state announced or argued? Press releases and complaints establish an announcement or a litigation position — not a binding outcome.

Can I access this product? The platform's current terms, eligibility and geoblock documentation define operational access. They do not decide legality.

What about my account? Official platform support can help with your account. It does not give legal rulings.

News coverage and third-party summaries, including this page, are starting points only. Check every source's date.

Eligibility checklist

Work through these in order; stop at the first item you can't answer.

Product / jurisdiction / contract checklist (reviewed October 26, 2026)
StepQuestionWhere to check
1. ProductWhich exact product are you using — e.g. Polymarket's international platform, Polymarket US, or Kalshi?The product's own website and documentation
2. JurisdictionWhere are you physically located, and where are you resident?The product's geoblock or eligibility page
3. Access levelCan you open positions, or only close them (close-only)?Geoblock/eligibility documentation
4. ContractIs the specific contract offered to you in your location?The contract page and product terms
5. AccountDo you meet the account requirements (identity, age, funding method)?The product's account terms
6. ChangesHas anything changed since the source date?Regulator releases; platform announcements

Stop conditions

Stop and ask official platform support or qualified counsel if: the product's documentation doesn't clearly cover your location; a contract's availability is unclear; sources conflict; or your situation involves taxes, custody or business use. Never use a VPN or other method to bypass a geoblock or eligibility check.

What this guide deliberately does not cover

It does not assess state-by-state legality, tax treatment, custody protections, or the status of other platforms. Those depend on facts and sources not reviewed here. Where we couldn't verify a claim against a primary source, we removed it rather than guess.

Sources

Primary sources reviewed October 26, 2026. Our summaries are bounded by these pages; check them for changes.

Frequently asked

Are prediction markets legal in the US?
It depends on the product, your location and the specific contract. This guide summarizes primary sources and gives a checklist; it is not legal advice. Unclear cases go to official support or qualified counsel.
Is Kalshi CFTC-regulated?
A 2020 CFTC press release announced Kalshi's designation as a designated contract market. Check Kalshi's current documentation for which contracts are offered where.
Can US users use Polymarket?
Polymarket's international front end and API are close-only for the United States per its geoblock documentation. Polymarket's US documentation describes a separate US product, with order examples in USD; check that product's own terms for eligibility.
What is close-only?
Users in a close-only region can close existing positions but cannot open new ones on that platform.
What is the CFTC v. New Mexico case?
A CFTC press release dated June 12, 2026 announced a lawsuit in which the CFTC asserts jurisdiction over event contracts and New Mexico contests it. This guide does not report the case's outcome.
Can I use a VPN to access a restricted platform?
No. Bypassing geoblocks or eligibility checks may breach platform terms and the law. Ask official support or qualified counsel instead.
Does this guide cover taxes or custody?
No. Those questions depend on your situation; consult the platform's documentation and a qualified professional.
When was this guide reviewed?
October 26, 2026, against the sources listed on this page. Things may have changed since.