When you sign up for a new sportsbook account on Saturday, March 21 using the BetMGM bonus code TOPACTION, score a $1,500 first bet promo. Place your first bet on any event and get back up to $1,500 in bonus bets to cover the amount of your loss if you lose. An excellent option for your initial wager is on Vanderbilt vs. Nebraska in March Madness tonight at 8:45 p.m. ET on TNT.
This sign-up offer is available exclusively to new users in AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY. Click on the module below to claim your welcome bonus with the BetMGM bonus code TOPACTION.
BetMGM Bonus Code TOPACTION: Secure $150 Bet-and-Get for Vanderbilt vs. Nebraska, March Madness
Register now with the BetMGM bonus code TOPACTION to claim a $1,500 first bet offer. Place your first bet, and if it loses, get back up to $1,500 in bonus bets to cover the amount of your loss. Keep in mind that if you do receive bonus bets back due to a first bet loss, they expire after seven days. If your bonus amount exceeds $50 in value, you receive the bonus is five equal increments.
Let's take a look at a betting example from Vanderbilt vs. Nebraska in March Madness tonight to demonstrate how this sign-up offer works. Suppose I place a $500 first bet on the Nebraska moneyline (+110):
- If the bet wins, I receive $550 in profit and my $500 stake back.
- If the bet loses, I receive five $100 bonus bets that expire after seven days.
In addition to Vanderbilt vs. Nebraska, pick which twin will win in a matchup between Haley and Hannah Cavinder on BetMGM Sportsbook. Wager correctly to win a share of $2 million in BetMGM bonus bets.
Other BetMGM Promo Offers Available Today
Instead of the $1,500 first bet promo, there are two additional welcome bonuses available at BetMGM Sportsbook using a BetMGM bonus code. In select states, place a $10+ first bet to get $150 in bonus bets if you win. In most states, grab a 20% deposit match of up to $1,500 in sports bonus. Take a look at the chart below for information about these alternative offers.
| BetMGM Promo | States Available | BetMGM Bonus Code |
|---|---|---|
| Bet $10, Get $150 in Bonus Bets if You Win | MI, NJ, PA, WV | ACTIONGET |
| Get a 20% First Deposit Match Up to $1,500 in Sports Bonus | AZ, CO, DC, IA, IN, KS, KY, MA, MD, MI, MO, NC, NJ, PA, TN, WV, WY | TOPTAN1500 |
BetMGM Bonus Code Sign-Up Steps: Saturday, March 21, 2026
Follow the steps outlined below to claim your sign-up bonus today with the BetMGM bonus code:
- Click any sign-up module on this page to create a new BetMGM Sportsbook account. Forthe $150 bet-and-get, use ACTIONGET. To claim the 20% deposit match, it's the exclusive TOPTAN1500. The $1,500 first bet offer usesTOPACTION.
- Once redirected, select your state and click "Register" in the top right corner to begin registration.
- Enter your personal information, including your email address, name, date of birth, phone number, home address, and the last four digits of your SSN. Then, create a user ID and password.
- Accept the BetMGM terms & conditions, set security questions, and confirm your age and eligibility.
- Make a $10+ first deposit using any available banking method.
- Place your first bet via the BetMGM app or site on any event, including Vanderbilt vs. Nebraska in March Madness.
BetMGM Bonus Code Terms & Conditions
21+. Gambling problem? Call 1-800-GAMBLER or 1-800-MY-RESET. Offer available in MI, NJ, PA, WV. Please Gamble Responsibly. Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR. Visit BetMGM.com for Terms & Conditions.
21+. Gambling problem? Call 1-800-GAMBLER or 1-800-MY-RESET. AZ, CO, DC, IA, IN, KS, KY, MA, MD, MI, MO, NC, NJ, PA, TN, WV, WY. Call 877-8-HOPENY or text HOPENY (467369) (NY). Call 1-800-327-5050 (MA), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-522-4700 (KS, NV), 1-800-BETS-OFF (IA). Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR. Visit BetMGM.com for Terms & Conditions.
21+. Gambling problem? Call 1-800-GAMBLER or 1-800-MY-RESET. AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY. Call 877-8-HOPENY or text HOPENY (467369) (NY). Call 1-800-327-5050 (MA), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-522-4700 (KS, NV), 1-800-BETS-OFF (IA). First Bet Offer for new customers only (if applicable). Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR. Visit BetMGM.com for Terms & Conditions.
