The current Kalshi promo code is ACTION and the welcome offer is simple: Trade $10, Get a $10 Bonus. For new eligible users, that means completing $10 in trades on the platform to unlock the $10 bonus tied to the offer.
When you sign up before Final Four games on April 4, 2026, you can trade on the following matchups: Michigan vs. Arizona and Illinois vs. UConn.
What is the Kalshi Promo Code?
The featured Kalshi promo code is ACTION. The offer attached to it is Trade $10, Get a $10 Bonus.
For a new user, the structure is straightforward. Create an account, enter the code if prompted, complete the required sign-up steps, and make $10 in trades to qualify for the bonus.
How the Kalshi Referral Code ACTION Offer Works
The Kalshi referral code ACTION offer is built around a first-use bonus. New users sign up, finish account setup, and complete $10 in trades to receive the $10 bonus.
That keeps the process easy to follow for anyone opening an account before the final college basketball games of the season.
How to Claim Kalshi Promo Code ACTION
- Open Kalshi through this promotional sign-up link.
- Create a new account.
- Enter Kalshi promo code ACTION within the code field.
- Complete the required account verifications steps.
- Make at least a $10 first trade.
- Receive the $10 bonus connected to the offer.
Availability and eligibility can vary, so it's always smart to review the latest terms before signing up.
Who is This Offer for?
The Kalshi promo code ACTION is for new eligible users in AL, AK, AR, CA, CO, CT, DC, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, and WY.
Key Terms to Know Before Signing Up
- Promo code: ACTION
- Offer: Trade $10, Get a $10 Bonus
- Who it's for: New eligible users
- Event: Final Four
- Game time: Saturday, April 4, 2026
- TV Channels: TBS
- Important note: Offer not available in AZ, IL, MA, MD, MI, MT, NJ, NV, or OH
The Final Four Headlines Saturday College Basketball
Michigan vs. Arizona & Illinois vs. UConn
For anyone searching for a Kalshi referral code before tipoff, this is the kind of event that creates a simple entry point: one major game, one clear start time, and one nationally-visible matchup.
How to Use the Offer for Final Four
These are the matchups that are easy to follow from the start. Michigan vs. Arizona and Illinois vs. UConn are playing for a spot in the National Championship Game on April 6 and this matchup sits in a featured Saturday night window.
For a new user, Michigan vs. Arizona is a good place to begin. Let's say you place a simple $10 trade on Michigan to win the National Championship (33%). However the trade plays out, this gives you $10 in bonus to roll into the second Final Four game.
Why the Kalshi Promo Code ACTION Stands Out
The biggest strength of this offer is its simplicity. Trade $10, Get a $10 Bonus is easy to understand and gives new users a straightforward welcome package.
If you're looking for a current Kalshi promo code ahead of the Final Four, ACTION fits that low-friction sign-up path.
Kalshi Promo Code FAQ
What is the Kalshi Promo Code?
The current Kalshi promo code is ACTION.
What is the Current Kalshi Offer?
The featured offer is Trade $10, Get a $10 Bonus.
How Do You Use the Kalshi Referral Code ACTION?
Sign up through the promotional links on this page, enter action if prompted, complete the required account steps, and make $10 in trades.
When is the Final Four?
The Final Four takes place on Saturday, April 4, with Michigan vs. Arizona and Illinois vs. UConn on TBS.
Can a Promo Code be Added After Sign-Up?
A promo code can be added for a limited time after sign-up as long as you haven't made a deposit.
Final Thoughts
If you're looking for the latest Kalshi promo code before the Final Four, the code to know is ACTION. New users can trade $10 and get a $10 bonus, making it a simple welcome offer ahead of Saturday night's biggest college basketball games. This positions Kalshi as one of the best prediction markets in 2026.
Terms and Conditions
Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NJ, NV and OH.


