Don't miss the best March Madness betting promos and claim nearly $5,000 in bonus value. Sign up today and bet on college basketball conference tournaments, including the ACC, Big Ten, and SEC. Today, you'll see many top teams in action, featuring No. 3 Auburn, No. 4 Florida, and No. 6 St. John's
With the top March Madness betting promos, you can access a welcome bonus from the following sportsbooks: bet365, BetMGM, Caesars Sportsbook, and Fanatics Sportsbook. Place your first bet on today's NCAAB games to unlock bonus bets for next week's NCAA Tournament.
Check out the latest NCAAB odds before betting on any college basketball game.
| Best NCAAB Sportsbooks | March Madness Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $1,000 First Bet Safety Net or $150 Bet-and-Get Promo | TOPACTION |
| BetMGM | 20% First Deposit Match, Up to $1,600 | TOPTAN1600 |
| 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 |
| Thrillzz Social Sportsbook | Spend $10, Get $30 in Sweeps Coins | ACTION |
College Basketball March Madness Betting Promos: Use Sign-Up Bonus on Any Game
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, IN, KY, LA, NC, NJ, OH, PA, VA
Check out the best March Madness betting promos at bet365, featuring a $1,000 First Bet Safety Net or a $150 bet-and-get promo. Use the bet365 bonus code TOPACTION, and ensure your first bet is on a market with -500 odds or longer.
For the First Bet Safety Net promo, place your initial wager on any game. If it loses, you get your stake back in bonus bets, up to $1,000. For instance, a $1,000 first bet on St. John's -4.5 (-110) results in a $1,909.09 payout if it wins, or $1,000 in bonus bets if it loses.
The $150 bet-and-get offer is one of the top March Madness college basketball betting promos because it requires only a $5 first bet to earn $150 in bonus bets win or lose. Claim this bet365 promo in Pennsylvania, which includes an additional perk of 50 casino spins.
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
Use the BetMGM bonus code for a 20% first deposit match or a $1,500 first bet offer. BetMGM offers the largest bonus value among the top March Madness betting promos.
Use the BetMGM bonus code TOPTAN1600 for a 20% first deposit match, up to $1,600. Sign up and make your first deposit — BetMGM matches 20% of it in sports bonus funds. BetMGM requires a deposit of $8,000 or more to secure the full $1,600 bonus. Access this offer in the following states: AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY.
The BetMGM bonus code TOPACTION provides a $1,500 first bet offer. Place your first wager on any NCAAB game; if it doesn’t pan out, you get your stake back in bonus bets — up to $1,500. BetMGM distributes the bonus as five equal bet credits. Use this welcome bonus 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 Welcome Offer: Bet $1, Get $150 in Bonus Bets if You Win
- Caesars Sportsbook Promo Code: ACTION4DYW
- Caesars Sportsbook Welcome 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
Sign up now to claim one of the top March Madness betting promos from Caesars Sportsbook. Use the Caesars Sportsbook promo code to unlock a $150 bet-and-get offer or 100% Profit Boost Tokens.
Use the Caesars Sportsbook promo code ACTION4BG1 and place a $1 bet on college basketball. If your bet wins, you get $150 in bonus bets, distributed as six $25 bet credits. The bet credits expire after 30 days. You don't get the $150 bonus if your initial bet loses. Access this sign-up bonus in AZ, CO, DC, IA, IL, KY, LA, MD, ME, NY, OH, TN, VA, and WY.
With the Caesars Sportsbook promo code ACTION4DYW, a $1 bet instantly unlocks 10 100% Profit Boost Tokens. Each token allows you to wager up to $25, doubling your profit on any winning bet. Make sure you use the Profit Boost Tokens within 14 days. Use this welcome offer 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: Click 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
The Fanatics Sportsbook promo features three March Madness betting promos, allowing you to choose your own offer. Sign up now to claim a $300 bet-and-get promo available in Arizona, Michigan, New Jersey, and Pennsylvania. Place a $10 bet daily for three consecutive days, and you get $300 in bonus bets.
Get up to $1,000 in No Sweat Bets with one of the best college basketball March Madness betting promos. Fanatics Sportsbook distributes this bonus across 10 days, offering a daily No Sweat Bet, up to $100. If your No Sweat Bet doesn't win, you get your wager back 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.
Use the Fanatics Sportsbook promo in New York to unlock a 300% Profit Boost Token. Use the token on any college basketball game, with a maximum bet of $50.
March Madness College Basketball Betting Promos: Use These Alternative Options
1. PrizePicks (DFS)
- PrizePicks Promo Code: ACTIONMAX
- PrizePicks Sign-Up Bonus: Place $5 Lineup, Get $50 Instantly in Bonus Funds
- PrizePicks States Available: AK, AL, AR, AZ, CA, DC, DE, GA, IL, KS, KY, MA, MN, MO, MS, NC, ND, NE, NM, OK, OR, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY
Sign up now and use the PrizePicks promo code ACTIONMAX to claim $50 instantly in bonus funds. Submit a $5 lineup using players from any NCAAB game to access the $50 welcome bonus.
2. Thrillzz Social Sportsbook
- Thrillzz Promo Code: ACTION
- Thrillzz Welcome Bonus: Spend $10, Get $30 in Sweeps Coins
- Thrillzz States Available: AK, AR, AZ, CA, CO, CT, DE, FL, HI, IL, KS, MA, MD, ME, MO, MT, NC, ND, NE, NH, NJ, NM, NY, OK, OR, PA, RI, SD, TN, TX, UT, VA, VT, WI, WV, WY
With the Thrillzz promo code ACTION, you must spend $10 to unlock $30 in Sweeps Coins. Use the Sweeps Coins to make picks on any college basketball game.