All the best March Madness betting promos are blanketed in this article, and you can take advantage of them to score up to $3,850 in promo funds today. Get in on the action now to bet on first round action in the NCAA Tournament, which proved yesterday that college basketball is as exciting as ever.
Sign up with all the top March Madness betting promos from all the best sportsbooks and online sports betting sites like bet365, BetMGM, and more. Use your sign-up bonuses to bet on every college basketball game in today's first round action, which includes an intriguing No. 6 vs. No. 11 matchup in Xavier vs. Illinois at 9:45 p.m. ET on CBS.
| March Madness Sportsbooks | March Madness Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $1,000 First Bet Safety Net or $150 Bet-and-Get | TOPACTION |
| BetMGM | Bet $10, Get $150 in Bonus Bets if You Win | ACTIONGET |
| Caesars Sportsbook | Bet $1, Get $150 in Bonus Bets if You Win | ACTION4BG1 |
| Fanatics Sportsbook | $300 Bet-and-Get Promo or $1,000 in No Sweat Bets | Click Here |
Sign Up With The Best March Madness College Basketball Betting Promos Below
bet365
Sign up with the bet365 bonus code TOPACTION and unlock one of the March Madness betting promos available in your state. The bet365 sign-up bonuses offered in most states are a $1,000 First Bet Safety Net ($1,000 in first bet insurance) or a $150 bet-and-get promo ($150 in bonus bets unlock when your $5+ first bet settles, win or lose).
That said, the bet365 bonus code TOPACTION unlocks the $150 bet-and-get promo with an additional perk of 50 online casino spins in Pennsylvania. Make sure your first March Madness bet has -500 or longer odds to qualify for whichever of the March Madness betting promos you redeem.
- Click one of the sign-up modules below in AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, and VA.
- Use the sign-up module below in PA.
BetMGM
There are three different BetMGM bonus code options available that vary by state. The simplest of these March Madness betting promos is a $150 bet-and-get promo you can claim with the BetMGM bonus code ACTIONGET. Place a $10+ first bet on March Madness and unlock $150 in bonus bets if you win. If your $10+ first bet loses, you walk away empty handed.
Sign up with the BetMGM bonus code TOPTAN1600 to get a 20% deposit match promo, up to $1,600 in sports bonus funds. Make a deposit of $8,000 in cash to unlock the full value of this promo. Or register with the BetMGM bonus code TOPACTION and get the stake of your first bet returned to you as bonus bets if your first bet loses, up to $1,500.
- Use the offer module below in CO, MI, NJ, PA, and WV.
- Click the sign-up module below in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY.
- Use the offer module below in AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY.
Caesars Sportsbook
Two more March Madness betting promos are up for grabs when you sign up with the Caesars Sportsbook promo code. Sign up with the Caesars Sportsbook promo code ACTION4BG1 to unlock $150 in bonus bets if your $1+ first bet wins. Similarly to the BetMGM promo mentioned earlier, you walk away empty handed if you lose your first bet. But if you win your first bet, you get six $25 bonus bets to use over the next 30 days.
The other choice you have is to sign up with the Caesars Sportsbook promo code ACTION4DYW. Place a $1+ first bet on March Madness and instantly unlock 10 100% Profit Boost Tokens which double your profits when you apply them to a winning bet. There's a max wager of $25 per wager, and a cap on winnings of $2,500 on wagers where you apply a Profit Boost Token. You have 14 days to use these tokens before they expire.
- Click the sign-up module below in AZ, CO, DC, IA, IL, KY, LA, MD, ME, NY, OH, TN, VA, and WY.
- Use the offer module below in AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, and WY.
Fanatics Sportsbook
Fanatics Sportsbook also varies which states their March Madness betting promos are available in. Sign up with the Fanatics Sportsbook promo in select states and make a $10 bet on March Madness today to unlock $100 in bonus bets. Make $10 in wagers each of the next two days as well to unlock an additional $200 in bonus bets to maximize this $300 March Madness betting promo.
Elsewhere, register with one of the March Madness betting promos in this article worth up to $1,000 in value. Make a No Sweat Bet today and get the amount of your bet back in bonus bets if you lose, up to $100, and repeat this process each of the next nine days. New York is the only state with their own Fanatics Sportsbook promo, which is a 300% Profit Boost Token when you sign up.
- Click the sign-up module below in AZ, CO, CT, IN, LA, MA, MD, MI, NJ, PA, TN, VA, and WV.
- Use the offer module below in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, and WY.
- Click the offer module below in NY.
Sign Up With Alternatives to March Madness Betting Promos Below
Kalshi
The first alternative to March Madness betting promos is Kalshi, which is available in all 50 states and Washington D.C. Use the Kalshi promo code ACTION and make $100 in trades (make predictions on March Madness by putting money on a market) to unlock a $10 bonus. The best way to describe Kalshi is that it's a trading app for sports, politics, pop culture, and more.
- Use the sign-up module below in all 50 states and Washington D.C.
Underdog Fantasy
The other alternative to March Madness betting promos is Underdog Fantasy, which is one of the best daily fantasy sports (DFS) apps to make college basketball picks on. Sign up with the Underdog Fantasy promo code TOPACTION and make your first cash deposit. You get 50% of your first cash deposit matched in bonus cash, up to $1,000. To claim the maximum value of this promo, make a $2,000 cash deposit.
- Click the offer module below in IL, IN, KS, VA, WY, DC, AL, AK, AR, CA, GA, ME, MN, MS, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, UT, VT, and WI.