Prediction Market Promo Codes
Three active prediction-market bonuses, all re-tested monthly with real accounts. Verified live as of September 17, 2026.
Advertising disclosure: MiamiPredictionMarkets is an independent affiliate publisher. We may earn a commission when you sign up for a prediction market platform via links on this page. Compensation never influences our editorial rankings or reviews. Prediction markets involve real financial risk — you must be 21+ and a US resident in an eligible jurisdiction. Read our full disclosure.
MIAPREDICTS unlocks all three of our verified offers: a $50 Polymarket trading bonus on a $10 deposit (iPhone app), trade $50 and get $75 on the sports-only ProphetX exchange, and trade $25 and get $25 on Kalshi in 48 US jurisdictions. All three are verified live as of September 17, 2026.
Rebet is a social sweepstakes-style app, not a CFTC-regulated exchange. Not in AZ, CA, CT, ID, LA, MD, MI, MT, NV, NJ or NY.
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.
Side-by-side: which code is right for you?
| Polymarket · MIAPREDICTS | ProphetX · MIAPREDICTS | Kalshi · MIAPREDICTS | |
|---|---|---|---|
| Bonus value | $50 trading bonus | $75 welcome bonus | $25 bonus |
| Min deposit | $10 | $50 (to trade $50) | $25 (to trade $25) |
| To unlock | Make a $10+ deposit | Trade $50 in sports contracts | Trade $25 in event contracts |
| Min age | 21+ | 21+ | 21+ |
| Platforms | iOS only (no Android, no US web) | iOS, Android, Web | iOS, Android, Web |
| Markets | Politics, sports, crypto, culture | Sports only | Politics, sports, economics, culture |
| Best for | Breadth and liquidity on iPhone | Sports-first traders on any device | All-round coverage on any device |
See the full breakdown in our Kalshi vs Polymarket comparison.
Kalshi promo by state
State-specific Kalshi guides with banks, taxes, teams, and the $25 MIAPREDICTS offer confirmed live in each state.
Promo code FAQ
Certain 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.