Is Polymarket legal in California?

On this page · 18

1. Our Polymarket review
2. Is Polymarket legit and legal in California?
3. What is Polymarket?
4. Is Polymarket legal in California?
5. How to download Polymarket US in California
6. What can you trade on Polymarket?
7. How does Polymarket work?
8. How much does Polymarket charge?
9. Is Polymarket safe?
10. Who should use Polymarket?
11. How does Polymarket compare to OG (by Crypto.com)?
12. How do I sign up for Polymarket?
13. Responsible trading tools
14. Our verdict
15. What Polymarket looks like: real screenshots
16. Guides about Polymarket
17. How Polymarket compares
18. Ready to open an account?

Second in our California ranking, rated 4.7 out of 5. Polymarket US is a CFTC-regulated exchange. Offer: Deposit $10 get a $25 Trading Bonus! with code CAPREDICTS.

Bonus: Deposit $10 get a $25 Trading Bonus! with code CAPREDICTS

Founded 2020 · CFTC-regulated exchange

Polymarket US's minimum age is 18; we recommend 21+. Trading event contracts involves risk of loss. T&Cs apply. Trade responsibly.

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.

Best for

• High-volume cultural events

Our Polymarket review

Polymarket is the brand most people think of when they hear "prediction market". It is the platform that called the 2024 US presidential election weeks before the major pollsters, and the venue where the biggest cultural and political contracts trade in the world. After being unavailable to US traders for several years, Polymarket relaunched in the US in late 2025 as an app, regulated through QCX LLC (now doing business as Polymarket US), a CFTC-designated contract market.

Using the US app from California, the experience is meaningfully different from the global Polymarket site. The US app is dollar-denominated, runs over Plaid for deposits, and only lists markets that have been approved for the regulated US venue. Liquidity on flagship political and macro markets is excellent, but the long-tail catalog (niche crypto, foreign politics, internet drama) lives on the global app you cannot access from a US IP.

For traders who care about big political and cultural contracts, it is a strong choice under US regulation.

Is Polymarket legit and legal in California?

The Polymarket US app runs on QCX LLC (doing business as Polymarket US), a CFTC-designated contract market that Polymarket acquired in 2025. That makes it federally regulated under the same statute as Kalshi and Crypto.com's OG exchange: not a sportsbook, not an offshore book, not a sweepstakes.

On California: the platforms argue that federally regulated event contracts are governed by federal commodities law rather than state gambling statutes. For sports contracts that question is still in court, and the Ninth Circuit, whose rulings bind federal courts in California, ruled against Kalshi at the preliminary stage in August 2026. California's Attorney General has not taken action against Polymarket's US app, and I deposit and withdraw from a California bank without restriction.

Important nuance: the older Polymarket Global product (USDC, crypto wallets, run on Polygon) remains geoblocked from US IPs and is not the version US residents should use. If you previously used Polymarket Global and have a balance there, those funds are not accessible from the US app.

What is Polymarket?

Polymarket US is a CFTC-designated contract market run by QCX LLC (designated July 9, 2025). US users trade through the Polymarket US app; the international polymarket.com site is a different product and is not for US users.

Is Polymarket legal in California?

Status: Available, dispute pending (as of October 13, 2026). Polymarket US accepts California residents through its app. California has taken no enforcement action against the platforms, but Kalshi has switched off its markets on three tribes' lands after a 16 Sep 2026 Ninth Circuit ruling, and the Ninth Circuit's 28 Aug 2026 Nevada ruling binds California's federal courts. For sports contracts, whether federal law overrides state gambling rules is still being decided in court. The status describes access to the app, not a court ruling on legality.

That said, the legal picture is still being contested. Some state attorneys general have challenged certain platforms; the CFTC has consistently defended its jurisdiction. For the full backdrop, see our California legality guide.

How to download Polymarket US in California

1. Tap our Polymarket US link (opens in a new tab) and install the app.
2. Open the app, create your account and complete identity verification (KYC), including your Social Security number.
3. Enter code CAPREDICTS when the app asks for a promo code.
4. Deposit $10 or more by debit card, bank transfer (ACH), Apple Pay, PayPal or Venmo, then pick a market and place your first trade.

Offer: Deposit $10 get a $25 Trading Bonus! with code CAPREDICTS

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.

What can you trade on Polymarket?

Polymarket covers Politics, Culture, Sports, News. New markets are added weekly.

Practically, that means contracts on game outcomes, championship futures, player and team milestones, election results, Fed decisions, inflation prints, award shows, and cultural events.

How does Polymarket work?

Every contract on Polymarket settles at $1 (yes) or $0 (no). The price you pay reflects the market's implied probability. Example: a contract priced at 62¢ would imply a 62% chance.

You don't have to hold a contract until it settles; you can sell at any time. Example: if you bought at 62¢ and the price later moved to 78¢, you could sell and keep the difference, before fees. You are trading a price, which is different from placing a bet with a sportsbook. For the full mechanic, read how event contracts work.

How much does Polymarket charge?

Since October 2026, Polymarket US charges a taker fee on orders that fill straight away, worked out from the price: it is highest for contracts near 50 cents (about $1.74 per 100 contracts) and falls toward 1 cent and 99 cents. Orders that rest on the book (maker orders) pay no fee; rebates on them are limited to very high-volume traders since October 19, 2026. (Checked October 3, 2026.)

Liquidity varies by market. High-profile events like presidential elections or playoff series are deep, while niche markets can be thin. Always check the bid-ask spread before taking a position.

Polymarket US fees

Here is how Polymarket US charges, from its own fee and deposit docs (checked October 14, 2026):

The app shows the fee on each order before you confirm. Check the fee screen in the app before placing large orders.

Marketplace · Sponsored

Deposit $10 get a $25 Trading Bonus! with code CAPREDICTS

US residents only · T&Cs apply

Sign up at Polymarket US (opens in a new tab)

Is Polymarket safe?

Polymarket US is run by QCX LLC, a CFTC-designated contract market, so the federal regulator (the CFTC) supervises it. Trading is still risky: 100% loss can occur.

That regulatory backstop is the single biggest reason California traders choose CFTC-regulated venues over offshore sportsbooks, which operate outside U.S. consumer protection.

Who should use Polymarket?

Polymarket is best for high-volume political and cultural events.

If that profile fits you, Polymarket is worth a look: we rate it 4.7 out of 5.

How does Polymarket compare to OG (by Crypto.com)?

Polymarket and OG (by Crypto.com) are both CFTC-regulated event-contract venues, but they target different traders. See our full Polymarket vs OG (by Crypto.com) comparison.

In short: Polymarket excels at high-volume cultural events, while OG (by Crypto.com) is typically the default for broader U.S. coverage and brand recognition.

Full Polymarket vs OG (by Crypto.com) comparison →

How do I sign up for Polymarket?

Visit Polymarket, complete identity verification (KYC), fund your account from a U.S. bank, and start trading. The full process typically takes under 10 minutes.

Step by step, including deposits: how to use Polymarket in California.

Read the terms before funding your account.

Responsible trading tools

Polymarket provides deposit limits, self-exclusion options, and links to support resources. If trading stops being fun, take a break. Call 1-800-GAMBLER or visit ncpgambling.org (opens in a new tab).

Our verdict

“

Second in our California ranking, rated 4.7 out of 5. Polymarket US is a CFTC-regulated exchange. Offer: Deposit $10 get a $25 Trading Bonus! with code CAPREDICTS.

What Polymarket looks like: real screenshots

Screenshots taken by our editor on 27 September 2026. Prices and markets change constantly.

Guides about Polymarket

• 49ers Prediction Markets 2026: Trading Brock Purdy, the NFC West and Super Bowl LXI From California
• AI & Tech IPO Prediction Markets: Trading Anthropic, OpenAI and AI Regulation From California
• Can You Trade California Housing Prices on Prediction Markets? What's Available in 2026
• LA Clippers Prediction Markets 2026-27: Trading a Full Rebuild on Kalshi and Polymarket

How Polymarket compares

Frequently asked questions

Is Polymarket legal in California?

Polymarket's status in California is Available, dispute pending (as of October 13, 2026). Polymarket US, run by QCX LLC, a CFTC-designated contract market, accepts California residents through its app. California has taken no enforcement action against the platforms, but the Ninth Circuit's 28 Aug 2026 Nevada ruling binds California's federal courts, so the question for sports contracts is still in court.

Is Polymarket legal in CA?

In CA, Polymarket US is available with a dispute pending (as of October 13, 2026): you can sign up on the app and trade in US dollars while the courts decide whether state gambling law reaches sports contracts. The international Polymarket site is a different, crypto-based product and is not for US users.

Does Polymarket work in California?

The Polymarket US app works in California (status: Available, dispute pending, as of October 13, 2026): install it, verify your identity, deposit by debit card, bank transfer (ACH), Apple Pay, PayPal or Venmo, and trade.

Is Polymarket available in California?

Status: Available, dispute pending (as of October 13, 2026). Polymarket US accepts California residents on its app.

Does Polymarket have a promo code?

Yes. New users can use code CAPREDICTS for the current welcome offer: Deposit $10 get a $25 Trading Bonus! Terms apply, and eligibility varies by state.

What is the minimum deposit on Polymarket?

Polymarket US doesn't publish a general minimum; wire deposits need at least $5,000. The welcome bonus needs a $10 deposit.

Is 'polly market' the same as Polymarket?

Yes, 'polly market' is a common misspelling of Polymarket. In the US it's the Polymarket US app, run by QCX LLC.

When will Polymarket launch in the U.S.?

It already has. Polymarket US is live as a CFTC-regulated app run by QCX LLC (doing business as Polymarket US), and California residents can sign up.

How much will Polymarket charge in the U.S.?

Since October 2026 Polymarket US charges a taker fee on orders that fill straight away. It's highest for contracts near 50 cents (about $1.74 per 100 contracts) and smaller near 1 or 99 cents. Orders that rest on the book pay no fee; rebates on them are limited to very high-volume traders since October 19, 2026. Deposits by card, bank, Apple Pay, PayPal or Venmo carry no listed fee; USDC deposits can carry network costs. (docs.polymarket.us/fees, checked 3 Oct 2026.)

Is Polymarket safe?

Polymarket US is run by QCX LLC, a CFTC-designated contract market, so the federal regulator (the CFTC) supervises it. Trading is still risky: 100% loss can occur.

What will I be able to trade on Polymarket?

Politics, culture, crypto, sports, and macro events. Polymarket built its reputation on high-volume political and cultural markets.

How does Polymarket compare to Kalshi?

Polymarket has historically had deeper liquidity in cultural and political moments; Kalshi has the regulatory head start and broader U.S. market coverage today.

Do you pay taxes on Polymarket winnings?

Winnings can be taxable; ask a tax professional.

How do I withdraw from Polymarket in California?

Withdrawals are free and go back to the same method you deposited with, first in first out, once your deposit has cleared, which usually takes 3 to 4 business days. Wire withdrawals go through support.

Does Polymarket charge fees?

Since October 2026 Polymarket US charges a taker fee on orders that fill straight away. It's highest for contracts near 50 cents (about $1.74 per 100 contracts) and smaller near 1 or 99 cents. Orders that rest on the book pay no fee; rebates on them are limited to very high-volume traders since October 19, 2026. Deposits by card, bank, Apple Pay, PayPal or Venmo carry no listed fee; USDC deposits can carry network costs. (docs.polymarket.us/fees, checked 3 Oct 2026.)

What is the minimum deposit required for Polymarket?

Check the deposit screen in the Polymarket US app for the current minimum. A $10 deposit unlocks the $25 trading bonus with code CAPREDICTS. You deposit in US dollars by card, bank, Apple Pay, PayPal or Venmo; USDC is also accepted where available.

How long do withdrawals take on Polymarket?

Withdrawals are free and go back to the same method you deposited with, first in first out, once your deposit has cleared, which usually takes 3 to 4 business days. Wire withdrawals go through support.

Is there an official Polymarket mobile app available?

Yes. The Polymarket US app is available to eligible US users, including California residents.