The Kalshi promo code ACTION gets new users a bonus worth up to $500 after they trade $25 in event contracts. Enter ACTION when you sign up, settle $25 in trades within 30 days, and Kalshi credits your account. Every eligible user gets at least $15, and the top tiers go to a small fraction of accounts.
That $25 threshold is easy to clear on Wednesday's MLB card. Cardinals vs. Yankees goes at 7:05 p.m. ET on Prime Video, with Andre Pallante (3.74 ERA) opposite Will Warren (4.46 ERA) — a clean first market for learning how contract pricing works.
Kalshi Promo Code ACTION: The Quick Facts
| Promo code | Kalshi promo code ACTION |
| Also searched as | Kalshi referral code ACTION |
| Offer | Trade $25, get up to $500 |
| What you get | Bonus credit worth $15 to $500, assigned at random once you qualify |
| How to qualify | Settle $25 in total trades within 30 days of signing up — no winning trade required |
| Bonus expiration | 7 days after it lands in your account |
| Minimum age | 18+ |
| Featured market | Cardinals at Yankees, Wed., Aug. 5, 7:05 p.m. ET, Prime Video |
| Availability | 42 U.S. jurisdictions. Not available in AZ, IL, MA, MD, MI, MT, NV, OH or WA |
What Is the Kalshi Promo Code ACTION Offer?
Kalshi runs a federally regulated exchange, not a sportsbook. On prediction markets, you buy and sell contracts priced between $0.01 and $0.99, and each one settles at $1.00 if the outcome hits or $0.00 if it doesn't. That price is the market's read on probability: a Yankees contract at $0.65 means traders collectively put New York's win chances around 65%.
The offer hands you a low-stakes way to learn that format. Trade $25 across any eligible markets, and Kalshi credits a bonus somewhere between $15 and $500. You don't need to win a single trade to qualify — you need to settle $25 worth of them inside your first 30 days. Compared with most MLB prediction market promos, the qualifying bar is low, and the ceiling is unusually high.
What Are the Odds of Each Bonus Tier?
| Tier | Chance of landing it |
|---|---|
| $15 | 70% |
| $35 | 24% |
| $75 | 5% |
| $100–$500 | 1% |
Weight those out, and the average new user comes away with roughly $24 to $28. That's a real return on a $25 qualifying trade, but it isn't $500, and anyone signing up expecting the headline number will be disappointed 99% of the time. Two people can do the same thing and land in different places.
One housekeeping note: some sites write this up as the Kalshi referral code ACTION, but there's a single code and it goes in the promo field at registration.
If you're weighing the best prediction market apps, Kalshi's draw is breadth — the same account that holds a baseball contract can hold positions on politics, economics and season-long awards.
How Does the Bonus Work on Cardinals vs. Yankees?
Say you open a $50 position on the Yankees to win at $0.40 per contract. That $50 clears the $25 qualifying threshold on its own.
Now run the math on the position itself. At $0.40, each contract that settles Yes returns $1.00 — a profit of $0.60 per contract, or $75 on a $50 stake. If it settles No, you lose the $50. Nothing about the promo changes that outcome.
Once the bonus credit posts, spend it somewhere else. Putting $25 toward a second contract gives you a genuinely separate position rather than promo money papering over the first one. A season-long market like MLB MVP works well here, since it settles long after a single night's result stops mattering. Bonus credit is trading credit, not withdrawable cash, and it expires seven days after it hits your account — so plan the second trade before you claim the first.
How Do You Claim the Kalshi Promo Code ACTION?
- Open the Kalshi offer link and start the signup flow for your state.
- Enter ACTION in the promo field during registration. This is the same thing as the Kalshi referral code ACTION you may have seen elsewhere.
- Clear identity and location verification, then log in.
- Deposit with an approved payment method.
- Open your position before the market closes at first pitch.
- Settle $25 in total trades within 30 days to trigger the bonus.
What to Watch in Cardinals vs. Yankees
The pitching matchup is the part worth sitting with. Pallante carries a 3.74 ERA into the Bronx against Warren's 4.46, so the Cardinals have the better starter on paper even though the Yankees will be the shorter price. That gap is the honest argument for the St. Louis contract, and it's the kind of detail contract pricing sometimes underweights in a favorite's home start.
Weather is a live factor rather than a footnote. First-pitch conditions at Yankee Stadium point to 81 degrees, partly cloudy skies, a wind out of the west near 8 mph and a 36% chance of precipitation. The wind is too light to reshape the ballpark, but a one-in-three rain chance is worth respecting on an exchange — before you take a position, read the market's rules page for how a postponement or a shortened game resolves, because that mechanic differs from a sportsbook's push.
Kalshi predictions are worth watching through the afternoon here, because contract prices move on lineup news and late scratches in a way that a posted number doesn't. For the Yankees side, the case rests on home-field pricing and a deeper lineup rather than the starter. Neither team is running away with anything in early August, which is exactly why the contract price is the more useful signal than the matchup narrative.
Which States Is the Kalshi Promo Code ACTION Available In?
Kalshi is live in 42 U.S. jurisdictions for users 18 and older: AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IN, KS, KY, LA, ME, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV and WY.
It is not available in Arizona, Illinois, Massachusetts, Maryland, Michigan, Montana, Nevada, Ohio, or Washington. Every new account clears KYC verification before depositing or trading, and the promo is new users only, one per person.
Kalshi Promo Code FAQ
What is the current Kalshi promo code ACTION offer? Trade $25, get up to $500. Enter the code during registration to unlock it.
Is the Kalshi referral code ACTION the same as the promo code? Yes. Both names point to the same code and the same welcome offer.
Is the bonus really $500? Rarely. There's a 1% chance of landing the $100–$500 tier, a 5% chance at $75, a 24% chance at $35, and a 70% chance at $15.
Do I have to win my first trade? No. Only the $25 in settled volume matters, whether those positions win or lose.
Can I withdraw the bonus? No. It arrives as trading credit and expires seven days after it's credited.
Which markets count toward the $25? Any eligible market, including Wednesday's MLB game at 7:05 p.m. ET on Prime Video.
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. Not available in AZ, IL, MA, MD, MI, MT, NV, OH, and WA.
