Check out the best March Madness betting promos to unlock nearly $4,000 in bonus offers ahead of the NCAA Tournament. With the bracket officially revealed, now is the time to secure exclusive welcome bonuses from top sportsbooks before the action tips off later this week.
This is one of the most exciting times of the year for college basketball fans, as teams battle for a national title. Whether you're backing a powerhouse like Duke, Auburn, or Houston or looking for value on a Cinderella team, these March Madness betting promos give you extra bonus bets, deposit matches, and first bet insurance to enhance your experience.
Once you claim your sportsbook bonus, take a look at the latest NCAAB odds and start making your picks for First Four matchups, first-round games, and Final Four futures. Betting on NCAAB futures odds is another popular option, allowing you to lock in value on championship contenders before the tournament progresses.
Sign up now with the best March Madness betting promos and build your bankroll before the NCAA Tournament begins.
| March Madness Betting Apps | 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 or $1,500 First Bet Offer | TOPTAN1600 |
| Caesars Sportsbook | Bet & Get $150 in Bonus Bets or Get 10 100% Profit Boost Tokens | ACTION4BG1 |
| Fanatics Sportsbook | $1,000 in No Sweat Bets or Bet $30, Get $300 in Bonus Bets | CLICK HERE |
| Underdog Fantasy | Get Up to $1,000 Bonus Cash From First Deposit | TOPACTION |
Best College Basketball March Madness Betting Promos
Sign up today with the best March Madness betting promos to secure thousands in bonus bets for the NCAA Tournament. With the bracket set and the action about to begin, now is the perfect time to take advantage of exclusive sportsbook offers. Register now and place your March Madness bracket bets and futures wagers before the first tip-off.
1. bet365
- bet365 Bonus Code: TOPACTION
- bet365 Promos: $1,000 First Bet Safety Net or Bet $5, Get $150 in Bonus Bets Win or Lose
- bet365 IL Promo: Bet $5, Get $150 in Bonus Bets + $50 Super Boost
- bet365 TN Promo: Bet $5, Get $150 in Bonus Bets + $50 Super Boost
- bet365 PA Promo: Bet $5, Get $150 in Bonus Bets + 50 Casino Spins Win or Lose
- bet365 States Available: AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, PA, TN, VA
Use the bet365 bonus code TOPACTION to access some of the best March Madness betting promos available. New users can select between a $1,000 First Bet Safety Net or a $150 bet-and-get promotion in states including AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, and VA.
If you opt for the First Bet Safety Net, place a qualifying bet at -500 odds or longer. If your wager loses, bet365 refunds your stake in bonus bets up to $1,000. For example, if you place a $1,000 first bet on St. John's -18.5 against Nebraska Omaha (-110) and they cover, you win $1,909 in total payout. If the bet loses, you still receive $1,000 in bonus bets to use on future wagers.
For a lower-risk option, bet $5 on any eligible market (-500 odds or longer) to receive $150 in bonus bets, win or lose. In Pennsylvania, this promotion includes an extra 50 spins for bet365 Casino.
Additionally, bet365 Illinois is offering a Super Boost, allowing bettors to wager $50 on one point being scored in the first round of Thursday’s March Madness games. Meanwhile, for bet365 Tennessee, the Super Boost lets users place a $50 wager on the Tennessee Volunteers to win their first-round game at +100 odds.
Take advantage of these exclusive March Madness betting promos by signing up with bet365 bonus code TOPACTION today before the tournament tips off.
2. BetMGM
- BetMGM Bonus Code: TOPTAN1600
- BetMGM Promo: 20% First Deposit Match, Up to $1,600 in Sports Bonus
- BetMGM Bonus Code: TOPACTION
- BetMGM Promo: $1,500 First Bet Offer
- BetMGM States Available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY
Check out the best March Madness betting promos at BetMGM, where new users can claim up to $1,600 in bonus value. With the BetMGM bonus code, you have the flexibility to choose between a 20% deposit match bonus or a $1,500 first bet offer, giving you multiple ways to boost your bankroll during the NCAA Tournament.
Register with the BetMGM bonus code TOPTAN1600 and make your first deposit to receive a 20% match in sports bonus funds, up to $1,600. To unlock the full bonus, deposit $8,000 or more, but any qualifying deposit of at least $10 earns a partial match. This BetMGM promo is available in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY.
Prefer extra protection on your first wager? Sign up with BetMGM bonus code TOPACTION and place your first bet on any March Madness game. If it loses, BetMGM refunds your stake in bonus bets, up to $1,500, split into five equal bet credits. This offer is available in AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY.
3. Caesars Sportsbook
- Caesars Sportsbook Promo Code: ACTION4BG1
- Caesars Sportsbook Sign-Up Bonus: Bet $1, Get $150 in Bonus Bets if You Win
- Caesars Sportsbook Promo Code: ACTION4DYW
- Caesars Sportsbook Sign-Up Bonus: Bet $1, Get 10 100% Profit Boost Tokens
- Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY
Take advantage of two of the best March Madness betting promos with the Caesars Sportsbook promo code, giving new users a choice between a $150 bet-and-get offer or 10 Profit Boost Tokens to maximize potential winnings during the NCAA Tournament.
Register with Caesars Sportsbook promo code ACTION4BG1 and place a qualifying bet of $1 or more on any March Madness game or sporting event. If your bet wins, you receive $150 in bonus bets, credited as six $25 bet credits to use on future wagers.
This bet-and-get offer is available in AZ, CO, DC, IA, IL, KY, LA, MD, ME, NY, OH, TN, VA, and WY.
Prefer to double your payouts on winning bets? Use Caesars Sportsbook promo code ACTION4DYW to claim 10 100% Profit Boost Tokens instantly after placing a $1+ first wager.
Each Profit Boost Token doubles the profit on a successful bet (up to a $25 wager limit) and can be used across a variety of March Madness betting markets, including moneylines, spreads, and player props. The tokens are valid for 14 days and are available 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.
4. Fanatics Sportsbook
- Fanatics Sportsbook Promo: Activate Here
- Fanatics Sportsbook Bet-and-Get Promo: Bet $30, Get $300 in Bonus Bets
- Fanatics Sportsbook Sign-Up Bonus: $1,000 in No Sweat Bets
- Fanatics Sportsbook NY Sign-Up Bonus: 300% Profit Boost Token
- Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, NJ, OH, PA, TN, VA, VT, WV, WY
Fanatics Sportsbook is delivering some of the best March Madness betting promos, giving new users multiple Fanatics Sportsbook promo offers to maximize their wagers on the NCAA Tournament. Whether you prefer a bet-and-get bonus, No Sweat Bets, or a massive profit boost, Fanatics Sportsbook allows you to choose the offer that fits your betting strategy.
New users in Arizona, Michigan, New Jersey, and Pennsylvania can claim a $300 bet-and-get bonus with Fanatics Sportsbook. This three-day promotion provides bonus bets regardless of whether your wagers win or lose.
How It Works:
- Sign up with Fanatics Sportsbook and place a $10 bet on any eligible market (-500 odds or longer).
- Receive $100 in bonus bets once your wager settles.
- Repeat this for three consecutive days to collect a total of $300 in bonus bets.
This promo is a low-risk way to build your bankroll while wagering on March Madness matchups, player props, and other betting markets.
Fanatics Sportsbook also offers a No Sweat Bet promo, available in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, and WY.
This 10-day welcome offer gives you a daily No Sweat Bet, up to $100 per day. If your bet doesn’t win, Fanatics Sportsbook refunds your stake as bonus bets.
How the No Sweat Bet Works:
- Sign up with Fanatics Sportsbook and place a No Sweat Bet on any market (-500 odds or longer).
- If your bet wins, collect your full cash payout.
- If your bet loses, you get your stake back in bonus bets (up to $100 per day).
To maximize this promotion, place $100 No Sweat Bets for 10 days, securing up to $1,000 in bonus bets.
Fanatics Sportsbook provides an exclusive promotion for New York bettors. Instead of No Sweat Bets or the bet-and-get offer, new users in NY receive a 300% Profit Boost Token on their first bet.
With this profit boost, you can wager up to $50 on March Madness games or any other sport and triple your potential winnings.
College Basketball March Madness Betting Promos: Best Alternative Options
If you’re looking for unique ways to engage with March Madness betting promos, but traditional sportsbooks aren’t an option in your state, Daily Fantasy Sports (DFS) platforms and social sportsbooks offer exciting alternatives. Whether you’re testing your player prop predictions or wagering with virtual currency, these platforms provide different ways to enjoy the action.
1. Underdog Fantasy (DFS)
- Underdog Fantasy Promo Code: TOPACTION
- Underdog Fantasy Welcome Offer: 50% Deposit Match, Up to $1,000 in Bonus Funds
- Underdog Fantasy States: AK, AL, AR, CA, DC, GA, IL, IN, KS, ME, MN, MS, NC, ND, NE, NM, NY, OK, OR, RI, SC, SD, TX, UT, VA, VT, WI, WY
Underdog Fantasy delivers a DFS-style experience, allowing users to make "Higher" or "Lower" selections on player stats such as points, rebounds, and assists. Instead of building full lineups, users simply pick whether a player is going to exceed or fall short of their projected totals.
How the Underdog Fantasy Bonus Works:
- Sign up with Underdog Fantasy promo code TOPACTION.
- Deposit at least $10 to qualify for the 50% match bonus.
- Receive up to $1,000 in bonus funds added to your account.
2. Fliff Social Sportsbook
- Fliff Promo Code: ACTION
- Fliff Sign-Up Bonus: Spend $50, Get $100 in Fliff Coins
- Fliff States: AK, AZ, AR, CA, CO, CT, DC, DE, FL, IL, IN, IA, KS, KY, ME, MD, MA, MI, MO, MT, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SD, TX, UT, VT, VA, WV, WI
Fliff operates as a social sportsbook, letting users wager with Fliff Coins instead of real money. This provides a free-to-play experience where users can make March Madness picks without traditional sportsbook betting.
How to Claim the Fliff Sign-Up Bonus:
- Register with Fliff promo code ACTION.
- Spend $50 on Fliff Coins to qualify for the sign-up bonus.
- Receive an additional $100 in Fliff Coins to place bets on spreads, moneylines, and props.