Take advantage of the March Madness betting promos to claim up to $4,000 in bonus value for the NCAA Tournament. With these sportsbook promos, you can secure a welcome offer for any college basketball game.
Use the March Madness betting promos to unlock a welcome bonus from bet365, Caesars Sportsbook, BetMGM, and Fanatics Sportsbook. Be sure to review the latest NCAAB odds before placing wagers on college basketball games today.
Check out our March Madness betting primer for more information on the NCAA Tournament.
| Best NCAAB Sportsbooks | March Madness Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $150 Bet-and-Get or $1,000 First Bet Safety Net | TOPACTION |
| Caesars Sportsbook | Bet $1, Get $150 in Bonus Bets if You Win | ACTION4BG1 |
| BetMGM | Bet $10, Get $150 in Bonus Bets if You Win | ACTIONGET |
| Fanatics Sportsbook | $300 Bet-and-Get Promo or $1,000 in No Sweat Bets | Click the Link |
College Basketball March Madness Betting Promos: Claim These Sportsbook Promos Today
1. bet365
- bet365 Bonus Code: TOPACTION
- bet365 Promo: $1,000 First Bet Safety Net or Bet $5, Get $150 in Bonus Bets, Win or Lose
- 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 unlock a $1,000 First Bet Safety Net or a $150 bet-and-get promo. With the March Madness betting promos at bet365, you must place your first bet on a market with -500 odds or longer.
$1,000 First Bet Safety Net: Make your initial wager on any college basketball game. If it doesn't win, bet365 gives you your money back in bonus bets, up to $1,000. For example, placing a $1,000 first bet on Arizona -3.5 (-115) yields a $1,869.57 payout if the bet wins or provides $1,000 in bonus bets if it loses.
$150 Bet-and-Get Promo: With this bet365 promo, you only need to place a $5 first bet to unlock $150 in bonus bets, win or lose. Claim this welcome bonus in all legal bet365 states, including bet365 Illinois and bet365 Tennessee. Pennsylvania users can access an additional perk of 50 casino spins.
2. Caesars Sportsbook
- Caesars Sportsbook Promo Code: ACTION4BG1
- Caesars Sportsbook Sign-Up Offer: Bet $1, Get $150 in Bonus Bets if You Win
- Caesars Sportsbook Promo Code: ACTION4DYW
- Caesars Sportsbook Sign-Up Offer: 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
Check out the top March Madness betting promos at Caesars Sportsbook to unlock a welcome bonus. With the Caesars Sportsbook promo code, you can access $150 in bonus bets or 10 100% Profit Boost Tokens.
$150 Bet-and-Get Promo: Use the Caesars Sportsbook promo code ACTION4BG1 and place a $1 first bet on any college basketball market. If your bet wins, you get $150 in bonus bets, provided as six $25 bet credits. If the bet loses, Caesars won't award the bonus bets. Use this sign-up offer in AZ, CO, DC, IA, IL, KY, LA, MD, ME, NY, OH, TN, VA, and WY.
100% Profit Boost Tokens: Make a $1 first bet to instantly unlock 10 100% Profit Boost Tokens with the Caesars Sportsbook promo code ACTION4DYW. Wager up to $25 with each token, which doubles your profit on any winning bet. Claim this welcome bonus 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.
3. BetMGM
- BetMGM Bonus Code: ACTIONGET
- BetMGM Promo: Bet $10, Get $150 in Bonus Bets if You Win
- 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
Grab the best March Madness betting promos to claim up to $1,600 in bonus value at BetMGM. With the BetMGM bonus code, you can choose between three sportsbook promos, depending on your location.
$150 Bet-and-Get Promo: Use the BetMGM bonus code ACTIONGET and make a $10 first bet on any NCAAB game. If your initial wager wins, you get $150 in bonus bets. However, a losing first bet means you cannot access the bonus bets. Claim this BetMGM promo in CO, MI, NJ, PA, and WV.
20% First Deposit Match: With the BetMGM bonus code TOPTAN1600, you get a 20% first deposit match, up to $1,600 in sports bonus funds. Sign up now and deposit at least $8,000 to unlock the full $1,600 bonus. Access this sign-up bonus in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY.
$1,500 First Bet Offer: Use the BetMGM bonus code TOPACTION and make your first bet on college basketball. If it doesn't win, BetMGM refunds your stake in bonus bets, up to $1,500, split into five equal bet credits. The following states can access this welcome offer: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY.
4. Fanatics Sportsbook
- Fanatics Sportsbook Promo: Click the Link
- 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
The Fanatics Sportsbook promo allows you to choose your own offer. Utilize the best March Madness betting promos and place your initial wager or a No Sweat Bet on any market with odds of -500 or longer.
$300 Bet-and-Get Promo: Bettors in AZ, CO, CT, IN, LA, MA, MD, MI, NJ, PA, TN, VA, and WV can use this welcome bonus. Make a $10 daily wager to unlock $100 in bonus bets. Do this for three consecutive days to earn $300 in bonus bets.
$1,000 in No Sweat Bets: With this welcome offer, you get a daily No Sweat Bet, up to $100, for 10 straight days. If your daily No Sweat Bet loses, Fanatics Sportsbook returns your stake in bonus bets, up to $100. Use this sign-up bonus in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, and WY.
300% Profit Boost Token: Use the Fanatics Sportsbook promo in New York to claim an exclusive 300% Profit Boost Token. Wager up to $50 on any college basketball game.
Best Alternative Options to March Madness College Basketball Betting Promos
1. Kalshi Predictive Market
- Kalshi Promo Code: ACTION
- Kalshi Welcome Offer: Make $100 in Trades, Get $10 Sign-Up Bonus
- Kalshi States Available: All 50 States + Washington D.C.
Use the Kalshi promo code ACTION and make $100 in trades to unlock a $10 sign-up bonus. The Kalshi Predictive Market is available in all 50 states plus Washington DC, making it an excellent alternative if you cannot access the top college basketball March Madness betting promos.
2. Underdog Fantasy (DFS)
- Underdog Fantasy Promo Code: TOPACTION
- Underdog Fantasy Sign-Up Bonus: 50% Deposit Match, Up to $1,000 in Bonus Funds
- Underdog Fantasy States Available: AL, AK, AZ, AR, CA, DC, DE, GA, IL, KS, KY, MA, MN, MO, NE, NM, NC, ND, OK, OR, RI, SC, SD, TN, TX, UT, VT, VA, WI, WV, WY
With the Underdog Fantasy promo code TOPACTION, you get a 50% deposit match, up to $1,000 in bonus funds. Use these bonus funds to submit a lineup with players from any NCAAB game.