Is Kalshi legal in California?
Kalshi accepts California residents. It's a CFTC-regulated exchange, not a sportsbook, though its sports contracts face an unsettled court fight. Here's the legal framework, the latest rulings, what you can trade and how to open an account.
On this page
- Quick answer
- What Kalshi is and who regulates it
- Kalshi's status in California
- What the courts have decided
- Age and eligibility
- California tax note
- How to sign up for Kalshi in California
- Kalshi vs Polymarket US vs ProphetX vs OG in California
- Alternatives available in California
- What could change Kalshi's status in California
- Sources
Kalshi · Trade $25 and Get $25!
CAPREDICTS
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Last checked October 5, 2026
Quick answer
Status: Available — dispute pending (as of 3 October 2026). Kalshi accepts California residents, and California has taken no enforcement action against the platforms. But the Ninth Circuit's 28 August 2026 Nevada ruling binds California's federal courts, and Kalshi has switched off its markets on three tribes' lands after a 16 September 2026 ruling (Bloomberg Tax).
| At a glance | California, 3 October 2026 |
|---|---|
| Status | Available — dispute pending |
| Regulator | CFTC (federal), designated contract market since 4 November 2020 |
| State enforcement against Kalshi | None found |
| Federal appeals court covering California | Ninth Circuit: ruled for Nevada on sports contracts (28 Aug 2026, preliminary stage) |
| Tribal lands | Kalshi has disabled its markets on three tribes' lands (reported 24 Sep 2026) |
| Supreme Court | Three petitions pending (26-299, 26-338, 26-344); none granted |
| Kalshi's minimum age | 18 (we recommend 21+) |
| Welcome offer | Trade $25 and Get $25! with code CAPREDICTS |
"Available — dispute pending" is one of the four status words we use on every state page. It describes access, not legality: Kalshi takes sign-ups from California, and there is an open court fight that could change what it can offer here. It is not a promise that nothing will change, and this page is general information, not legal advice.
What Kalshi is and who regulates it
Kalshi is an exchange for event contracts: yes-or-no contracts on real-world outcomes such as an election, an economic number, the weather or a game. The exchange is run by KalshiEX LLC. The U.S. Commodity Futures Trading Commission (CFTC) designated KalshiEX as a contract market (a "DCM") on 4 November 2020 (CFTC release 8302-20). Kalshi began offering sports event contracts in January 2025 (Sports Betting Dime).
So Kalshi's permission to run an exchange comes from a federal regulator, not from a California gaming licence. That is the heart of the dispute. Kalshi argues federal commodities law covers its contracts. Several states and tribes argue that sports contracts are gambling under their own laws. For contracts on politics, the economy, weather and culture, the court cases described below are mostly not about them; the fight is over sports.
Our editor has a funded Kalshi account.
Kalshi's status in California
Kalshi accepts California residents. Kalshi publishes no list of states in its help centre, so "accepts" rests on the partner offer list (which includes California) and on the fact that our legal timeline contains no order or exit covering the state as a whole.
Three things put California in the "dispute pending" group:
- The Ninth Circuit. California is one of the nine states whose federal courts follow the Ninth Circuit. On 28 August 2026 that court ruled, at the preliminary stage, that Kalshi had not shown federal law likely overrides Nevada's gaming rules for sports contracts (opinion).
- Tribal lands. On 16 September 2026 the Ninth Circuit found two California tribes likely to succeed on their claim that Kalshi's sports contracts on their lands break the Indian Gaming Regulatory Act (opinion). Kalshi then told a federal court it had switched off its markets on three tribes' lands (Bloomberg Tax).
- The state's position. California has not sued Kalshi or ordered it to stop, but Attorney General Rob Bonta joined a coalition of 37 attorneys general in June 2026 backing Ohio's power to enforce its gambling laws against Kalshi (California Attorney General).
What changed: dated change-log for California
Newest first. Entries are taken from our corrected legal timeline (IDs in brackets) and cover California plus the federal events that apply here.
| Date | What happened | Source |
|---|---|---|
| 9 Oct 2026 | CFTC issues an interim final rule excluding "casino-style gambling products" (such as wagers at sportsbooks and on casino games) from the definition of swap. The rule is final but not yet in effect: it takes effect when published in the Federal Register, and it had not been published as of 13 Oct 2026 | CFTC release 9309-26 |
| 9 Oct 2026 | CFTC proposes a separate rule that would expressly include event contracts (sports, politics, culture, weather) in the definition of swap. This is a proposal, not a final rule; comments are due 30 days after Federal Register publication | CFTC release 9310-26 |
| 24 Sep 2026 | Kalshi tells a court it disabled its markets on three California tribes' lands | Bloomberg Tax |
| 16 Sep 2026 | Ninth Circuit sides with two California tribes in Blue Lake Rancheria v. Kalshi; case sent back to the district court | Ninth Circuit opinion |
| 11 Sep 2026 | Crypto.com asks the Supreme Court to review the Ninth Circuit ruling (No. 26-344) | Supreme Court docket |
| 10 Sep 2026 | Kalshi asks the Ninth Circuit for a rehearing; Robinhood petitions the Supreme Court (No. 26-338) | Sports Betting Dime |
| 2 Sep 2026 | New Jersey asks the Supreme Court to review the Third Circuit ruling (No. 26-299) | New Jersey Attorney General |
| 28 Aug 2026 | Ninth Circuit rules for Nevada regulators in KalshiEX v. Assad; binds federal courts in California | Ninth Circuit opinion |
| 12 Jun 2026 | California Attorney General joins a multistate brief against Kalshi in the Sixth Circuit | California Attorney General |
| 10 Jun 2026 | CFTC proposes a framework for sports and other "enumerated activity" contracts (not final) | CFTC release 9249-26 |
| 6 Apr 2026 | Third Circuit sides with Kalshi against New Jersey (2-1, preliminary stage) | Third Circuit opinion |
| 27 Mar 2026 | Governor Newsom extends the insider-betting ban for state officials to prediction markets; it does not regulate the platforms | Office of the Governor |
| 18 Mar 2026 | Assemblymembers announce a bill on prediction-market ads to minors; not law (report date) | CDC Gaming |
| 10 Nov 2025 | Federal judge denies the tribes' request to block Kalshi on tribal lands (partly reversed in Sep 2026) | CDC Gaming |
| 22 Jul 2025 | Three California tribes sue Kalshi and Robinhood in the Northern District of California | Event Horizon |
What the courts have decided
Federal appeals courts are split on sports event contracts, all at the preliminary-injunction stage: the Third Circuit sided with Kalshi (6 April 2026), the Ninth (28 August 2026) and Sixth (25 September 2026) sided with the states, and three Supreme Court petitions (Nos. 26-299, 26-338, 26-344) are pending; none has been granted.
"Preliminary stage" matters. These courts decided who is likely to win while the cases continue, not the final answer.
| Court | Case and date | Outcome | States it binds |
|---|---|---|---|
| Third Circuit | KalshiEX LLC v. Flaherty, No. 25-1922, 6 Apr 2026 | For Kalshi, 2-1: upheld the injunction blocking New Jersey enforcement | NJ, PA, DE |
| Ninth Circuit | KalshiEX LLC v. Assad (Nevada), No. 25-7516, 28 Aug 2026 | For Nevada, 3-0: Kalshi had not shown federal law likely overrides Nevada gaming rules for sports contracts; election contracts sent back to the lower court | AK, AZ, CA, HI, ID, MT, NV, OR, WA |
| Sixth Circuit | KalshiEX LLC v. Schuler (Ohio) / v. Orgel (Tennessee), Nos. 26-3196, 26-5235, 25 Sep 2026 | For the states, 3-0: no express or implied preemption shown | KY, MI, OH, TN |
| Ninth Circuit | Blue Lake Rancheria v. Kalshi, No. 25-7504, 16 Sep 2026 | Tribes likely to succeed for contracts on their lands; sent back to the district court | California tribal lands |
Kalshi has asked the full Ninth Circuit to rehear the Nevada case; that request had no decision when we checked.
The three Supreme Court petitions
| No. | Case | From | Response due | Status (3 Oct 2026) |
|---|---|---|---|---|
| 26-299 | Flaherty (New Jersey) v. KalshiEX | Third Circuit | 9 Nov 2026 (Kalshi; extended from 8 Oct) | Pending, not granted |
| 26-338 | Robinhood Derivatives v. Dreitzer (Nevada) | Ninth Circuit | 13 Nov 2026 (Nevada) | Pending, not granted |
| 26-344 | North American Derivatives Exchange (Crypto.com) v. Nevada | Ninth Circuit | 16 Nov 2026 (Nevada) | Pending, not granted |
Response dates can be extended. The earliest the Court could decide whether to hear any of them is an estimate of December 2026 to January 2027, not a scheduled date. Two of the three petitions come from the Ninth Circuit's 28 August 2026 Nevada rulings, the same set of decisions that applies in California, so the outcome matters directly here.
Age and eligibility
- Kalshi's own minimum age is 18. Its sign-up help page says "Be 18 years or older" (Kalshi Help Center).
- We recommend 21+. That is this site's editorial policy, not a Kalshi or California rule.
Kalshi may ask you to pass a document check when you sign up. Its help centre also says it is each member's responsibility to make sure their use of the exchange is lawful for them. If you are on the lands of one of the tribes where Kalshi has disabled its markets, expect those markets not to be available there.
California tax note
California's personal income tax rates run from 1% to 13.3%. At the federal level the treatment is unsettled: the IRS has issued no guidance on how event contracts should be classified. Keep a record of every deposit, trade and withdrawal. This is not tax advice; a California tax professional can tell you how it applies to you. Our California prediction market tax guide goes into more detail.
How to sign up for Kalshi in California
- Open Kalshi through our link: Sign up at Kalshi
- Enter your basic personal details and your California address.
- Pass the document check if Kalshi asks for one; Kalshi emails you when the account is approved.
- Enter code CAPREDICTS if you are asked for a code (you can use either our link or the code).
- Deposit. The minimum deposit is $10. Bank transfer (ACH) and wire deposits are free; debit card deposits (including Apple Pay and Google Pay) may carry a 2% processing fee.
- Read a market's rules before your first trade, and start small.
Kalshi offer: Trade $25 and Get $25! Code CAPREDICTS. 21+ recommended. Sign up at Kalshi
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
The welcome offer covers 47 states plus D.C., including California. That is the offer's eligibility, not a statement about where Kalshi is legal.
Step-by-step screenshots are in our Kalshi walkthrough; money out is covered in how to withdraw from Kalshi.
Kalshi vs Polymarket US vs ProphetX vs OG in California
| Kalshi | Polymarket US | ProphetX | OG (by Crypto.com) | |
|---|---|---|---|---|
| Regulator | CFTC (DCM since 4 Nov 2020) | CFTC (DCM and clearing house since 9 Jul 2025) | CFTC (DCM since 11 Jun 2026) | CFTC-regulated exchange (NADEX is a DCM) |
| Status in California | Available — dispute pending | Available — dispute pending | Available — dispute pending | Available — dispute pending |
| Minimum age (operator) | 18 (we recommend 21+) | 18 (we recommend 21+) | 18 or local age of majority if higher (we recommend 21+) | 18 (we recommend 21+) |
| Devices | Web, iOS app, Android app | Polymarket US app | Web, mobile app | Web, mobile app |
| Sign-up offer | Trade $25 and Get $25! Code CAPREDICTS | Deposit $10 get a $25 Trading Bonus! Code CAPREDICTS | Trade $50, Earn $75! Code CAPREDICTS | Trade $25 Get $25 in Rewards! (New users only) Code CAPREDICTS |
| Fees in one line | A fee on each executed trade, based on price and number of contracts, shown before you confirm | Since October 2026 a taker fee by price, highest near 50 cents (about $1.74 per 100 contracts); resting orders pay no fee (rebates only for very high-volume traders from October 19, 2026) | 2% of net winnings per market on straight trades | A fee to open or close a position, by price on most markets; $0.02 per contract on crypto, FX, commodity and index markets; none at settlement |
Fees checked 3 October 2026 on each operator's help pages. The offer terms for each brand are printed with its offer below.
Alternatives available in California
Every platform below is also "Available — dispute pending" in California, for the same reasons as Kalshi.
Polymarket US. Runs on QCX LLC, a CFTC-designated exchange, through the Polymarket US app. See is Polymarket legal in California?
Offer: Deposit $10 get a $25 Trading Bonus! Code CAPREDICTS. 21+ recommended. Sign up at Polymarket US
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
ProphetX. A CFTC-designated exchange since June 2026, on web and mobile. See ProphetX in California.
Offer: Trade $50, Earn $75! Code CAPREDICTS. 21+ recommended. Sign up at ProphetX
New users only. T&Cs apply. ProphetX's minimum age is 18 (or the local age of majority if higher); we recommend 21+. Not available in Nevada. Trading involves risk.
OG (by Crypto.com). Run by North American Derivatives Exchange, Inc. (NADEX), a designated contract market. OG's welcome offer covers 42 states plus D.C., including California. See OG in California.
Offer: Trade $25 Get $25 in Rewards! (New users only) Code CAPREDICTS, or use our link and leave the code box empty. 21+ recommended. Sign up at OG
Paid partnership with OG. Terms and conditions apply. Trading derivatives involves risk and may not be appropriate for all. Availability subject to jurisdictional limitations. For more information, visit: OG.com.
Novig. A sports-focused exchange (Ludlow Exchange, LLC), CFTC-designated since June 2026. Its own minimum age is 21. Pre-game straight trades are free; live trades, futures and parlays carry a price-based taker fee.
Offer: Deposit $10 Get $50 in Trade Credits! Code CAPREDICTS. 21+. Sign up at Novig
Restrictions & requirements apply. Not available in all states. 21+. Event contract trading involves risk & is not appropriate for all. Consider if it's appropriate for you in light of financial circumstances. See novig.com/terms for information.
Not available in California: Rebet. Rebet's sweepstakes rules exclude California, and its offer is not valid here. Rebet is not CFTC-regulated.
What could change Kalshi's status in California
- The Supreme Court. If it takes one of the three cases, its answer would apply in every circuit, including the Ninth. Nevada's responses are now due 13 and 16 November 2026; Kalshi's response in the New Jersey case is due 9 November 2026.
- A Ninth Circuit rehearing. Kalshi's request to the full court has no decision yet.
- The tribal case. The Blue Lake Rancheria case is back in the federal court in Northern California.
- The CFTC. Its June 2026 proposals on sports and other event contracts are not final. On 9 October 2026 it issued an interim final rule excluding casino-style gambling products from the definition of swap (final, but in effect only once published in the Federal Register; not yet published as of 13 October 2026) and, separately, proposed a rule that would expressly include event contracts in that definition (a proposal only, with a 30-day comment period after publication).
- The state. California has taken no enforcement action so far. If that changes, we update this page and the change-log.
We re-check the Supreme Court dockets, CFTC releases and operator pages weekly.
Sources
- KalshiEX LLC designated a contract market: CFTC release 8302-20 (4 Nov 2020; checked 3 Oct 2026)
- Kalshi sign-up requirements, minimum age 18: Kalshi Help Center (checked 3 Oct 2026)
- Kalshi deposits and withdrawals: Kalshi Help Center, Transfers FAQ (checked 3 Oct 2026)
- Kalshi fees: Kalshi Help Center, Fees (checked 3 Oct 2026)
- Ninth Circuit, KalshiEX v. Assad, No. 25-7516: opinion (28 Aug 2026)
- Ninth Circuit, Blue Lake Rancheria v. Kalshi, No. 25-7504: opinion (16 Sep 2026)
- Kalshi disables markets on three tribes' lands: Bloomberg Tax (24 Sep 2026)
- Third Circuit, KalshiEX v. Flaherty, No. 25-1922: opinion (6 Apr 2026)
- Sixth Circuit, Nos. 26-3196 and 26-5235: opinion (25 Sep 2026)
- Supreme Court dockets 26-299, 26-338, 26-344 (read 3 Oct 2026)
- California Attorney General joins multistate brief: oag.ca.gov (12 Jun 2026)
- CFTC proposed framework for event contracts: CFTC release 9249-26 (10 Jun 2026)
- CFTC interim final rule and proposed rule on the definition of swap: CFTC release 9309-26 and CFTC release 9310-26 (9 Oct 2026)
- Polymarket US, ProphetX, OG and Novig regulator, age and fee details: operator help pages and CFTC registers listed in our facts file (checked 3 Oct 2026)
- Offers: partner offer export (offers live 1 Oct 2026)
Last checked 3 October 2026. This is a factual summary, not legal or tax advice. Trade responsibly; if it stops being fun, call 1-800-GAMBLER.
Frequently asked questions
Is Kalshi legal in California?
Kalshi's status in California is Available — dispute pending, as of 3 October 2026. Kalshi accepts California residents and the state has taken no enforcement action against it, but the Ninth Circuit's 28 August 2026 Nevada ruling binds California's federal courts, and Kalshi has switched off its markets on three tribes' lands. This is not legal advice.
How is Kalshi allowed in California if it offers sports contracts?
Kalshi runs as a CFTC-designated contract market, a federally regulated exchange, and argues that federal commodities law covers its contracts. States and tribes argue sports contracts are gambling under their own laws. The Ninth Circuit, which covers California, sided with Nevada on 28 August 2026 at the preliminary stage. Three Supreme Court petitions on the question are pending.
Can you use Kalshi in California right now?
Available — dispute pending (as of October 3, 2026). Kalshi accepts California residents as of 3 October 2026. The exception is the lands of three California tribes, where Kalshi has disabled its markets after a 16 September 2026 Ninth Circuit ruling.
How old do you have to be to use Kalshi in California?
Kalshi's own minimum age is 18. We recommend 21+. Kalshi may ask for a document check at sign-up.
Do you pay California tax on Kalshi winnings?
California's personal income tax rates run from 1% to 13.3%. At the federal level the treatment is unsettled because the IRS has issued no guidance on event contracts. Keep records of every trade and ask a tax professional how it applies to you.
Has California tried to ban Kalshi?
Not through its own enforcement action. Attorney General Rob Bonta joined a 37-attorney-general brief in June 2026 supporting Ohio's power to enforce its gambling laws against Kalshi, and a bill on prediction-market ads to minors was announced in March 2026 but is not law.
Is Polymarket legal in California too?
Polymarket US has the same status: Available — dispute pending, as of 3 October 2026. It works through the Polymarket US app.
18+ · T&Cs apply · Terms
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
