With the best March Madness betting promos now live and Selection Sunday just two days away, sportsbooks are offering some of the most rewarding sign-up bonuses of the year. Whether you’re betting on a championship contender like Auburn or Duke or looking for a Cinderella story to shake up the bracket, these exclusive promotions give bettors a significant edge as the tournament excitement builds.
There's over $6,000 in potential bonus funds available across multiple sportsbooks, so now is the best time to take advantage of these March Madness betting promos. From No Sweat Bets that protect your wagers to deposit matches and bet-and-get promotions, the best sportsbooks are delivering top-tier offers to help you build your bankroll this March.
| 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 |
No matter your betting style, these March Madness betting promos cater to every type of bettor. If you’re looking for first bet offers, BetMGM and bet365 provide safety nets that refund your first wager in bonus bets if it loses. If you prefer guaranteed bonus funds, offers from Fanatics Sportsbook and Caesars Sportsbook ensure you receive extra value regardless of the outcome of your first NCAAB pick.
With high-stakes college basketball games happening daily, there’s no better time to claim these March Madness betting promos. Whether you’re backing a top seed to dominate or eyeing a potential bracket-busting underdog, these offers provide the best opportunity to cash in as the tournament unfolds.
Top March Madness College Basketball Betting Promos
1. bet365 Sportsbook
- bet365 Bonus Code: TOPACTION
- $1,000 First Bet Safety Net or Bet $5, Get $150 Win or Lose
- Exclusive PA Offer: Bet $5, Get $150 in Bonus Bets + 50 Casino Spins, Win or Lose
- bet365 Sportsbook States: AZ, CO, IA, IN, KY, LA, NC, NJ, OH, PA, VA
New users can claim a March Madness betting promo that best fits their strategy. Whether you want to protect your first bet with a safety net or secure guaranteed bonus bets with a low-cost wager, the bet365 bonus code TOPACTION gives bettors flexibility and extra value throughout the tournament.
For those who prefer first bet protection, the $1,000 First Bet Safety Net ensures that if your opening wager doesn’t hit, your stake is refunded in bonus bets—up to $1,000.
How the First Bet Safety Net Works:
- Register for a new account using bet365 bonus code TOPACTION.
- Deposit at least $10 into your account.
- Place your first bet on any eligible March Madness market (-500 odds or longer).
- If your bet wins, you receive your full payout in cash.
- If your bet loses, bet365 refunds your stake in bonus bets, up to $1,000.
This offer is ideal for those who want to make a higher-stakes bet on a tournament favorite like Houston or Arizona, knowing they’ll get a second chance if their wager falls short.
For those looking for a low-risk way to build a bankroll, bet365 also offers the Bet $5, Get $150 promotion, ensuring new users receive bonus bets no matter the outcome.
How the Bet $5, Get $150, Win or Lose Promo Works:
- Sign up with bet365 bonus code TOPACTION.
- Deposit a minimum of $10.
- Place a $5 first bet on any March Madness game.
- Win or lose, receive $150 in bonus bets once your wager settles.
This promo is perfect for bettors who want to lock in extra betting funds while taking a shot on a tournament sleeper or a player prop in the early rounds.
For bettors in Pennsylvania, the bet365 bonus code TOPACTION unlocks an enhanced version of the Bet & Get promo. Instead of only receiving $150 in bonus bets, PA users also get 50 bet365 Casino spins, adding even more value beyond sports betting.
With college basketball betting promos offering major incentives, now is the perfect time to sign up and take advantage of bet365’s best offers before the tournament action begins.
2. BetMGM Sportsbook
- BetMGM Bonus Code TOPTAN1600: 20% Deposit Match, Up to $1,600
- BetMGM Bonus Code TOPACTION Get up to $1,500 Back in Bonus Bets if Your First Bet Doesn't Win
- BetMGM Available States: AZ, CO, DC, IL, IN, IA, KS, KY, LA, MA, MD, MI, NJ, NC, OH, PA, TN, VA, WV, WY
Whether you’re looking to extend your bankroll with a deposit match or secure your first bet, a BetMGM bonus code ensures you get extra value as you place your picks with two of the best March Madness betting promos.
New users signing up with a BetMGM bonus code can select between two exclusive promotions:
- 20% Deposit Match Up to $1,600 – Use BetMGM bonus code TOPTAN1600 and receive a 20% deposit match to boost your betting funds.
- $1,500 First Bet Offer – Use BetMGM bonus code TOPACTION to get your stake back in bonus bets if your first wager loses, up to $1,500.
Click below to sign up and claim your preferred BetMGM welcome offer before the tournament action begins.
For those who want a bankroll boost across multiple bets, the BetMGM deposit match provides bonus funds to use on spreads, totals, parlays, and props throughout March Madness.
How the deposit match works:
- Sign up with BetMGM bonus code TOPTAN1600 in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY.
- Make a minimum deposit of $10.
- Receive a 20% match in bonus funds, up to $1,600.
- Complete a 10x rollover requirement before withdrawing winnings.
For example, if you deposit $1,000, BetMGM credits your account with $200 in bonus funds, giving you extra flexibility when betting on conference tournaments, first-round matchups, or Cinderella teams.
For bettors who prefer extra security on a high-stakes play, BetMGM’s First Bet Offer provides up to $1,500 in bonus bets if your initial wager doesn’t hit.
How the First Bet Offer Functions:
- Register with BetMGM bonus code TOPACTION in AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY.
- Deposit at least $10.
- Place your first bet on any eligible college basketball market (-500 odds or longer).
- If your bet wins, collect your full payout in cash.
- If your bet loses, receive up to $1,500 in bonus bets, distributed in five equal portions.
For instance, if you wager $500 on Kentucky to cover the spread against Tennessee and they fall short, BetMGM refunds your stake in five $100 bonus bets, giving you multiple chances to profit on upcoming games.
3. Caesars Sportsbook
- Caesars Sportsbook Promo Code ACTION4BG1: Bet $1, Get $150 in Bonus Bets If You Win
- Caesars Sportsbook Promo Code ACTION4DYW: Bet $1+, Get 10 100% Profit Boost Tokens
- Caesars Sportsbook States:AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY
March Madness betting promos are in full swing, and Caesars Sportsbook is leading the way with some of the best offers available. New users who sign up with Caesars Sportsbook promo code ACTION4BG1 can Bet $1 and Get $150 in Bonus Bets if Their Wager Wins. This is the perfect way to start betting on March Madness, giving you a significant boost for a minimal investment.
For those looking for additional value, Caesars Sportsbook promo code ACTION4DYW provides 10 Profit Boost Tokens on your first bet. These tokens allow you to increase your potential payouts on winning bets, giving you even more opportunities to maximize your earnings during the tournament.
This new Bet & Get promo allows bettors to turn a $1 wager into $150 in bonus bets, making it one of the best college basketball betting promos available.
How to get $150 in Bonus Bets:
- Register with Caesars Sportsbook promo code ACTION4BG1.
- Deposit at least $10 into your account.
- Place a $1+ wager on any eligible March Madness market.
- If your bet wins, receive $150 in bonus bets to use on future wagers.
This promo is ideal for bettors looking to build their bankroll with minimal risk, allowing them to start March Madness with a guaranteed bonus as long as their initial bet hits.
For those who prefer higher potential payouts, the 10 Profit Boost Tokens offer allows you to double your winnings on a variety of college basketball bets.
How to Double Your Winnings with Caesars Sportsbook:
- Sign up with Caesars Sportsbook promo code ACTION4DYW.
- Deposit at least $10 into your account.
- Place your first bet of $1 or more on any eligible March Madness game.
- Receive 10 Profit Boost Tokens in your account after your first bet settles.
- Apply these tokens to enhance your potential winnings on future wagers, including moneylines, spreads, and player props.
Each Profit Boost Token can be used on bets up to $25, and all 10 tokens must be used within 14 days before they expire.
This promo is perfect for bettors who want to increase their payouts without increasing their risk, making it an excellent way to get even more value during the tournament.
4. Fanatics Sportsbook
- Fanatics Sportsbook Promo: Claim Here
- Bet and Get Up to $1,000 in No Sweat Bets
- Sign Up and Get a 300 % Profit Boost Token
- Bet $30, Get $300 in Bonus Bets
- Fanatics Sportsbook States: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY
Fanatics Sportsbook is delivering some of the most rewarding offers for new users. Whether you’re looking for a bet and get offer or prefer No Sweat Bets, these promotions provide extra value during the most exciting stretch of the college basketball season.
Fanatics Sportsbook gives bettors multiple options when claiming their welcome offer, allowing you to choose the best Fanatics Sportsbook promo based on your betting preferences and location. Check out the details below to find the right deal for you.
New users in Arizona, Michigan, New Jersey, and Pennsylvania can claim the Bet $30, Get $300 promotion, which rewards bonus bets over three days.
If you're in one of those four states, here's how it works:
- Place a $10+ bet on an eligible March Madness game (-500 odds or longer) each day for three consecutive days.
- Receive $100 in bonus bets per day, no matter if your wager wins or loses.
- Collect a total of $300 in bonus bets to use across multiple NCAAB matchups.
This promo is perfect for bettors looking to build their bankroll with minimal risk, ensuring a steady flow of bonus bets to wager on conference tournament games and March Madness action.
For those who prefer a securtity on their bets, Fanatics Sportsbook offers $1,000 in No Sweat Bets across 10 days. This bet protection promo is 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.
- Place a No Sweat Bet of up to $100 per day for 10 days.
- If your wager loses, Fanatics Sportsbook refunds your stake in bonus bets.
- Use your refunded bets to keep wagering on college basketball or other sports.
This promotion is ideal for those who want extra security if planning to bet consistently throughout March Madness.
Bettors in New York have access to a state-exclusive promotion that provides a 300% Profit Boost Token on their first bet.
- Sign up with Fanatics Sportsbook.
- Place a first wager of at least $50.
- Receive a 300% Profit Boost Token to maximize your payout on your first bet.
This offer is perfect for those looking to turn a strong pick into an even bigger payout, giving you enhanced odds on your first wager during March Madness.
Alternative March Madness Betting Promos
March Madness betting promos are available across various platforms, even in states where traditional sports betting isn’t yet legal. If you’re looking for ways to get in on the action, Daily Fantasy Sports (DFS) apps and social sportsbooks provide exciting alternatives. These platforms allow you to wager on player performances and virtual currency-based contests, giving you unique opportunities to engage with the tournament.
For those unable to claim traditional March Madness betting promos, here are two of the best alternative options to enhance your college basketball experience.
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 offers a DFS experience that allows users to make “Higher” or “Lower” picks on player stats like points, rebounds, and assists. By signing up with the Underdog Fantasy promo code TOPACTION, new users receive a 50% deposit match, up to $1,000 in bonus funds.
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 is a social sportsbook that operates with Fliff Coins instead of real money, making it a fun and interactive way to engage with college basketball. With the Fliff promo code ACTION, new users receive $100 in Fliff Coins after spending $50.
How to Use Fliff Coins for College Basketball:
- Sign Up & Deposit: Register using the Fliff promo code ACTION and deposit at least $50.
- Make Picks: Use Fliff Coins to pick on spreads, moneylines, or player props for college basketball games.
- Redeem Rewards: Depending on state regulations, Fliff Coins can be redeemed for prizes or used for future picks.
These alternative March Madness betting promos give you another way to enjoy the college basketball season, whether you’re building DFS lineups on Underdog Fantasy or making social sportsbook picks on Fliff.