Sign up for new accounts at some of the top online sportsbooks in the industry to take advantage of the best March Madness betting promos. These college basketball betting promos can be found at prominent sites like bet365, BetMGM, Caesars Sportsbook, and Fanatics Sportsbook. Get started today with the best March Madness betting promos to wager on any game throughout the NCAA Tournament.
The best March Madness betting promos combine for more than $6,500 in sign-up bonuses. Check out the chart below for more information about these offers:
| Best NCAAB Sportsbooks | Best March Madness Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $1,000 First Bet Safety Net or $150 Bet-and-Get | TOPACTION |
| BetMGM | $1,600 Deposit Match | TOPTAN1600 |
| Caesars Sportsbook | Bet $1, Get $150 in Bonus Bets If You Win | ACTION4BG1 |
| Fanatics Sportsbook | $1,000 in No Sweat Bets or $300 Bet-and-Get | Click Here |
Best March Madness Betting Promos: More Than $6,500 in Offers Available
Let's dive in and discuss the best March Madness betting promos to claim as a new user today. Keep in mind that you can only claim one of the college basketball betting promos available at each site, even if multiple offers are available.
bet365
| bet365 Promo | States Available | bet365 Bonus Code |
|---|---|---|
| $1,000 First Bet Safety Net | AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, VA | TOPACTION |
| Bet $5, Get $150 in Bonus Bets | AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, VA | TOPACTION |
| $150 Bet & Get + 50 Casino Spins | PA | TOPACTION |
Register with the bet365 bonus code TOPACTION and choose between two welcome offers: a $1,000 First Bet Safety Net or a $150 bet-and-get bonus. With the First Bet Safety Net, if your first wager loses, you receive up to $1,000 in bonus bets to cover your losses. Alternatively, the bet-and-get bonus provides you with $150 in bonus bets when you place an initial wager of $5 or more, win or lose.
For customers in Pennsylvania, registering with the bet365 bonus code TOPACTION nets you the $150 bet-and-get bonus plus 50 spins at bet365 Casino.
BetMGM
| BetMGM Promo | States Available | BetMGM Bonus Code |
|---|---|---|
| Get a 20% First Deposit Match Up to $1,600 in Sports Bonus | AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, WY | TOPTAN1600 |
| Get Up to $1,500 Back in Bonus Bets if Your First Bet Doesn't Win | IL, IN, IA, LA, KS, KY, OH, TN, WY | TOPACTION |
BetMGM offers two distinct March Madness betting promos across legal states. Register with the BetMGM bonus code TOPTAN1600 to unlock a 20% deposit match of up to $1,600 in sports bonus. This offer maintains a 10x rollover that must be completed within 30 days of your initial deposit.
Alternatively, sign up with the BetMGM bonus code TOPACTION to receive up to $1,500 in bonus bets if your first wager loses. Any bonus funds are issued in five equal installments and expire seven days after being credited.
Caesars Sportsbook
| Caesars Sportsbook Sign-Up Bonus | States Available | Caesars Sportsbook Promo Code |
|---|---|---|
| Bet $1, Get $150 in Bonus Bets If You Win | AZ, CO, DC, IA, IL, KY, LA, MD, ME, NY, OH, TN, VA, WY | ACTION4BG1 |
| Bet $1+, Get 10 100% Profit Boost Tokens | AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY | ACTION4DYW |
Caesars Sportsbook offers one of two March Madness betting promos to new sign-ups today. Use the Caesars Sportsbook promo code ACTION4BG1 to claim a $150 bet-and-get offer—place your first bet of $1 or more, and if it wins, receive $150 in bonus bets. Alternatively, in most states, you can use the Caesars Sportsbook promo code ACTION4DYW to place a $1+ first bet and earn 10 Profit Boost Tokens, each providing a 100% boost.
Fanatics Sportsbook
| Fanatics Sportsbook Promo | States Available | Sign-Up Link |
|---|---|---|
| Bet and Get up to $1,000 in No Sweat Bets | AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY | Click Here |
| Bet $30, Get $300 in Bonus Bets | AZ, MI, NJ, PA | Click Here |
| Sign Up and Get a 300% Profit Boost Token | NY | Click Here |
Depending on your location, you can claim one of three college basketball betting promos at Fanatics Sportsbook. In most states, new users receive up to $1,000 in No Sweat Bets, distributed evenly over the first 10 days on the app. Simply opt-in to the Fanatics Sportsbook promo each day and, if your qualifying wager loses, get back up to $100 in bonus bets.
If you sign up in AZ, MI, NJ, or PA, you receive up to $300 in bonus bets through three separate bet-and-get offers over your first three days. Essentially, each day you opt-in, you unlock a bet $10, get $100 in bonus bets offer.
New York customers receive a 300% Profit Boost Token when they sign up, which can be used to bet on any event, including NCAA basketball.
Alternative to Best March Madness Betting Promos: Kalshi
| Kalshi Sign-Up Bonus | States Available | Kalshi Promo Code |
|---|---|---|
| Trade on Sports & Politics – Get a $10 Bonus with Our Code | AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC | ACTION |
If online sports betting is not legal in your state yet, there is an excellent alternative option to the best March Madness betting promos with Kalshi. Kalshi is legal in all 50 U.S. states and operates as a sports trading platform that functions similarly to a stock market. Get started today with this innovative platform by signing up with the Kalshi promo code ACTION and getting a $10 bonus after you make $100 in total trades.