Platform Guide·7 min read
What Is Rebet? A California Trader's 2026 Guide
Rebet is a social-first prediction market built for traders who want to share positions, discuss markets, and trade alongside friends. Here's what it does well, who it's for, and whether a California trader should open an account.
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Sources & further reading
Every figure and legal claim on this page traces back to a primary source. These are the ones we checked, open them and verify us.
- CFTC: Commodity Futures Trading Commission
The federal regulator that authorizes and supervises every event-contract exchange we cover.
- CFTC designated contract markets registry
Official list of registered exchanges, where we verify a platform's DCM status.
- National Council on Problem Gambling
Free, confidential help and self-assessment tools (1-800-522-4700).
Frequently asked questions
Is Rebet legal in California?
- Yes. Rebet is a CFTC-regulated event-contract platform operating under federal commodities law. It is legal for California residents to use, just like Kalshi, Sleeper, and other regulated prediction markets.
What makes Rebet different from Kalshi?
- Rebet is social-first. It's built around group chats, shared positions, and community discussion. Kalshi is more finance-focused. Better for solo traders who want broad market coverage and quiet concentration.
Who is Rebet best for?
- Younger sports fans, group-chat traders, users who want cross-sport social trading in one app, and casual fans who want skin in the game without the sterile feel of a trading terminal.
Can I trade the NBA Finals on Rebet?
- Yes. Rebet covers NBA playoffs and Finals markets, including game-level and series-level contracts. Player props are available though depth varies by matchup.
Can I trade the 2026 World Cup on Rebet?
- Yes. Rebet covers the 2026 World Cup, including match-level markets, tournament winners, and group stage contracts. For the full World Cup strategy, see our World Cup 2026 guide.
How does Rebet make money?
- Rebet charges per-contract fees on trades, typically disclosed at order entry. Fee levels are competitive with other CFTC-regulated prediction markets.
Is Rebet safe to fund?
- Rebet operates under CFTC regulation, which requires customer fund segregation and federal compliance. The platform is a regulated venue. Underlying trading risk (you can lose what you deposit) applies to every prediction market.
Should I use Rebet or Kalshi?
- Use both. Kalshi for serious positions and broad market coverage. Rebet for social, group-chat trading on sports. They complement each other well for most California traders.
Does Rebet issue a 1099-B to California residents for tax season?
- Rebet operates under social sweepstakes mechanics rather than the CFTC-regulated contract model used by Kalshi. While Kalshi issues a 1099-B for capital gains, Rebet may issue a 1099-MISC if your net winnings exceed six hundred dollars. You must report all California income even if the platform does not issue a specific form.
What is the legal difference between Rebet and Kalshi in California?
- Kalshi is a CFTC-regulated exchange where you trade event contracts as financial instruments. Rebet is a social sportsbook that uses a sweepstakes model to remain legal in California. While both allow you to predict outcomes for profit, Kalshi is viewed as a financial market while Rebet is classified as social gaming.
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Top platforms Californians are using:
Rebet
Social-first peer-to-peer sports prediction. Travel-only: not available to California residents.
Sign up at RebetKalshi
The regulatory leader.
Sign up at KalshiCertain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 21+ 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.