rivomarkets

Where can I trade prediction markets?

ALAKAZCOFLGAINKSMEMNNCNDOKPASDTXWYMOWVILNMARCAIAKYMIMSMTNYOHORTNUTVAWAWINESCIDNVLA
Small states
Venues openNone123All 4Partly open counts as half

Prediction market access by US state

Kalshi's limits come from court orders. Polymarket US and Gemini publish no state list, so their answers point to each app's own eligibility check.

Kalshi

Open in 43, Partly open in 3, Check the app in 5

Polymarket US

Open in 41, Check the app in 10

Polymarket (polymarket.com)

Closed in 51

Gemini Predictions

Open in 51

Prediction market access by US state, updated September 27, 2026
StateKalshiPolymarket USPolymarket (polymarket.com)Gemini Predictions
AlabamaOpenOpenClosedOpen
AlaskaOpenOpenClosedOpen
ArizonaOpenCheck the appClosedOpen
ArkansasOpenOpenClosedOpen
CaliforniaOpenOpenClosedOpen
ColoradoOpenOpenClosedOpen
ConnecticutOpenOpenClosedOpen
DelawareOpenOpenClosedOpen
District of ColumbiaOpenOpenClosedOpen
FloridaOpenOpenClosedOpen
GeorgiaOpenOpenClosedOpen
HawaiiOpenOpenClosedOpen
IdahoOpenOpenClosedOpen
IllinoisOpenCheck the appClosedOpen
IndianaOpenOpenClosedOpen
IowaOpenOpenClosedOpen
KansasOpenOpenClosedOpen
KentuckyOpenOpenClosedOpen
LouisianaOpenOpenClosedOpen
MaineOpenOpenClosedOpen
MarylandOpenCheck the appClosedOpen
MassachusettsCheck the appCheck the appClosedOpen
MichiganPartly openCheck the appClosedOpen
MinnesotaOpenOpenClosedOpen
MississippiOpenOpenClosedOpen
MissouriOpenOpenClosedOpen
MontanaCheck the appCheck the appClosedOpen
NebraskaOpenOpenClosedOpen
NevadaPartly openCheck the appClosedOpen
New HampshireOpenOpenClosedOpen
New JerseyOpenCheck the appClosedOpen
New MexicoOpenOpenClosedOpen
New YorkOpenOpenClosedOpen
North CarolinaOpenOpenClosedOpen
North DakotaOpenOpenClosedOpen
OhioCheck the appCheck the appClosedOpen
OklahomaOpenOpenClosedOpen
OregonOpenOpenClosedOpen
PennsylvaniaOpenOpenClosedOpen
Rhode IslandOpenOpenClosedOpen
South CarolinaOpenOpenClosedOpen
South DakotaOpenOpenClosedOpen
TennesseeCheck the appCheck the appClosedOpen
TexasOpenOpenClosedOpen
UtahCheck the appOpenClosedOpen
VermontOpenOpenClosedOpen
VirginiaOpenOpenClosedOpen
WashingtonPartly openOpenClosedOpen
West VirginiaOpenOpenClosedOpen
WisconsinOpenOpenClosedOpen
WyomingOpenOpenClosedOpen

The four venues at a glance

KalshiPolymarket USpolymarket.comGemini Predictions
RegulatorCFTC, designated contract market since 2020CFTC, designated contract market and clearinghouseNot CFTC-regulatedCFTC, designated contract market since December 2025
Who signs upUS residents and most countriesUS residentsMost countries outside the USUS residents
State list publishedNo, court orders set the limitsNo, the app checksNot applicable, the US is close onlyNo, the app checks
MoneyUS dollarsUS dollarspUSD, a USDC-backed token on PolygonUS dollars
Minimum age18, or the age of majority in your stateSet by the appSet by Polymarket's terms18

Why is Kalshi restricted in some states?

Kalshi, Polymarket US and Gemini hold federal licenses from the CFTC. Several states say sports contracts are gambling, and gambling belongs to the states. The fight runs through the federal appeals courts, and the courts disagree:

  1. April 2026Third Circuit, New JerseyFor Kalshi

    Rules 2-1 for Kalshi. Sports contracts are swaps under federal law, and state gambling law gives way.

  2. May 5, 2026Federal court, ArizonaFor Kalshi

    Permanently blocks Arizona's criminal case against Kalshi.

  3. May 7, 2026Fourth Circuit, MarylandPending

    Hears Maryland's appeal. Maryland agreed not to enforce while it waits.

  4. August 4, 2026Federal court, UtahFor the states

    Lets Utah enforce its gambling law against Kalshi. Kalshi appeals.

  5. August 28, 2026Ninth Circuit, NevadaFor the states

    Rules 3-0 for Nevada. Sports contracts are gambling under state law.

  6. September 2, 2026Washington and MichiganFor the states

    Washington's geofence and Michigan's injunction take effect. New Jersey asks the Supreme Court to step in.

  7. September 16, 2026Ninth Circuit, California tribesFor the states

    Sides with two tribes over sports contracts on their tribal lands.

  8. September 25, 2026Sixth Circuit, Ohio and TennesseeFor the states

    Says both states can regulate Kalshi's sports contracts.

Where a court orders a geofence, Kalshi blocks the named categories for users in the state and leaves the rest open. Economics, weather, financials and crypto markets have stayed open in every state with an order so far. Until the Supreme Court settles the split, expect the map to move every few weeks.

How to confirm your own access

  1. Pick your country and state in the checker at the top of this page.
  2. Open the venue's app and sign up. Each venue checks identity and residence at signup.
  3. Open a market in the category you want. The app shows whether your account trades the market.
  4. Recheck after big court dates. Rivo rechecks this page monthly.

Where Rivo fits

Rivo is a terminal on top of your own venue accounts. Rivo never gets around a block: a market a venue closes to you stays closed in Rivo. What Rivo adds wherever you trade:

  • One screen for Kalshi, Polymarket, Polymarket US and Gemini, so you trade every venue open to you from one place.
  • Whale trades and ranked traders across venues. See the Kalshi leaderboard and the Polymarket leaderboard.
  • Research, backtests and paper bots on every venue, even one you are not allowed to trade on.

Which countries can't use Kalshi?

Kalshi's Member Agreement lists these as restricted jurisdictions for trading event contracts:

Afghanistan, Algeria, Angola, Australia, Belarus, Belgium, Bolivia, Bulgaria, Burkina Faso, Cameroon, Canada, Central African Republic, China, Côte d'Ivoire, Cuba, Democratic Republic of the Congo, Ethiopia, France, Haiti, Hungary, India, Iran, Iraq, Ireland, Italy, Kenya, Laos, Lebanon, Libya, Mali, Monaco, Mozambique, Myanmar, Namibia, New Zealand, Nicaragua, Niger, North Korea, Poland, Portugal, Russia, Singapore, Somalia, South Sudan, Sudan, Switzerland, Syria, Taiwan, Thailand, Ukraine, United Arab Emirates, United Kingdom, Venezuela, Yemen, Zimbabwe.

Which countries can't use Polymarket?

Blocked entirely: Cuba, Iran, North Korea, Syria, plus the Crimea, Donetsk and Luhansk regions of Ukraine.

Close only, where existing positions can be closed and new ones are rejected: United States, Australia, Belarus, Belgium, Brazil, Burundi, Central African Republic, Democratic Republic of the Congo, Ethiopia, France, Germany, Iraq, Italy, Lebanon, Libya, Myanmar, New Zealand, Nicaragua, Poland, Russia, Singapore, Slovakia, Somalia, South Sudan, Sudan, Taiwan, Thailand, United Kingdom, United States Minor Outlying Islands, Venezuela, Yemen, Zimbabwe, plus the Canadian provinces of Alberta, British Columbia, Ontario and Quebec.

Close only on the website, with API orders accepted: Ireland, Japan, Malta, Netherlands, South Korea (Malta for sports markets only).

Polymarket's help center lists some of these as fully blocked rather than close only. Either way you cannot open a new position from them, and Polymarket forbids using a VPN to get around the block. More on the US side in is Polymarket legal in the US, and on Kalshi's regulation in is Kalshi legit.

Frequently asked questions

Where can I trade prediction markets in the US?

Kalshi, Polymarket US and Gemini Predictions. All three are CFTC-regulated and open to US residents. Court orders limit some Kalshi categories in Washington, Nevada and Michigan. polymarket.com does not accept new positions from the US.

Is Kalshi legal in every state?

Kalshi's Member Agreement restricts no US state, but court orders make Kalshi geofence some categories. Washington blocks most categories, Nevada blocks sports, entertainment and elections, and Michigan blocks sports. Utah, Massachusetts, Ohio, Tennessee and Montana are in flux.

Is Polymarket legal in the US?

Polymarket US is. Polymarket US is a CFTC-designated exchange open to US residents through its app. The international polymarket.com is close only for the US: you can close old positions but can't open new ones.

Which states does Polymarket US exclude?

Polymarket US publishes no state list. Third-party guides name Nevada, Arizona, Illinois, Maryland, Michigan, Montana, Ohio, Massachusetts, New Jersey and Tennessee. The app's eligibility check at signup gives the answer for your address.

Is Gemini Predictions available in every state?

Gemini launched its prediction markets in December 2025 across all 50 states. Gemini now says availability varies by location and names no excluded state. The app confirms eligibility at signup.

Which countries can use Kalshi?

Every country not on the restricted list in Kalshi's Member Agreement. The list names 55 countries, including the United Kingdom, Canada, France, Australia and India. International accounts fund by debit card, wire or crypto and withdraw by debit card or crypto.

Which countries can use polymarket.com?

Most countries outside the US. Polymarket blocks a short list of sanctioned places outright, lets a longer list close positions only, and blocks new positions on the website alone in Ireland, Japan, Malta for sports, the Netherlands and South Korea.

How old do you have to be to trade prediction markets?

18 on Kalshi and Gemini. Kalshi's Member Agreement also requires the age of majority in your state, which is 19 in Alabama and Nebraska and 21 in Mississippi.

Can I use a VPN for Polymarket?

No. Polymarket blocks restricted locations and its terms forbid using a VPN to get around the block.

Why do states fight prediction markets?

States say sports contracts are gambling, and gambling belongs to the states. Kalshi says the contracts are swaps under federal law. The Third Circuit sided with Kalshi, and the Ninth and Sixth Circuits sided with the states. New Jersey asked the Supreme Court to settle the split on September 2, 2026.

Updated September 27, 2026. Not legal advice. Rules change, and the venue's app has the final say.