March Madness reaches its peak tonight with the Final Four, and there's still time to grab nearly $4,000 in Final Four betting promos before Florida vs. Auburn (6:09 p.m. ET) and Houston vs. Duke (8:49 p.m. ET) tip-off on CBS. These marquee matchups beginning in just a matter of hours make now the perfect time to claim welcome offers from the top sportsbooks.
With a spot in the National Championship on the line, bettors can take advantage of some of the best sign-up promos of the year. Whether you're backing favorites like Florida and Duke or hoping for an upset with Auburn or Houston, these Final Four March Madness betting promos offer new users bonus bets, deposit matches, and first-bet protection to enhance your Final Four picks.
Once you’ve claimed your sign-up bonuses, be sure to check the latest Final Four odds and start crafting your bets. There’s no better time to get in on the action.
Scroll through the chart below to find the best Final Four betting promos and choose the offer that best fits your style before tonight’s game's tip-off.
| NCAAB Betting Apps | Final Four Betting Promos for March Madness | Sign-Up Link |
|---|---|---|
| bet365 | $150 Bet-and-Get or $1,000 First Bet Safety Net | TOPACTION |
| Fanatics Sportsbook | $300 Bet-and-Get Promo or $1,000 in No Sweat Bets | Activate Now |
| BetMGM | Bet $10, Get $150 in Bonus Bets if You Win | ACTIONGET |
| Caesars Sportsbook | Bet $1, Get $150 in Bonus Bets if You Win | ACTION4BG1 |
| DraftKings Sportsbook | Bet $5, Get $150 in Bonus Bets Instantly + $50 Bonus Bet on First Deposit | Click Here |
| FanDuel Sportsbook | Bet $5, Get $200 in Bonus Bets If Your Bet Wins | Click the Link |
March Madness Final Four Schedule
- Saturday, April 5: Florida vs. Auburn (6:09 p.m. ET on CBS), Alamodome in San Antonio, TX
- Saturday, April 5: Houston vs. Duke (8:49 p.m. ET on CBS), Alamodome in San Antonio, TX
Best Sportsbook Promos for March Madness Final Four Tonight
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 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
bet365 Sportsbook is the go-to spot for some of the best Final Four betting promos available. New users in AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, and VA can choose between a $1,000 First Bet Safety Net or a $150 bet-and-get bonus. Just sign up with the bet365 bonus code TOPACTION to claim one of these limited-time offers ahead of tonight's Final Four matchups.
If you choose the First Bet Safety Net, place a qualifying bet with odds of -500 or longer. If your bet loses, you receive your full stake back in bonus bets, up to $1,000.
For example, if you place a $1,000 first bet on Auburn +2.5 (-110) vs. Florida, and they cover, you win $1,909. If the Tigers fall short, bet365 refunds your full stake in bonus bets to use on future wagers.
However, with bet365 Sportsbook, you can get started with just $5. Sign up using the bet365 bonus code TOPACTION and place a $5 bet on any eligible market to receive $150 in bonus bets—win or lose. In Pennsylvania, this offer also includes 50 spins for bet365 Casino as an added bonus.
2. 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 offering a trio of Final Four betting promos for tonight, giving new users the flexibility to choose the Fanatics Sportsbook promo that best fits their style and location. Whether you're interested in a bet-and-get offer, No Sweat Bets, or a 300% Profit Boost, there's a Fanatics Sportsbook promo tailored to boost your bets for the NCAA Tournament.
$300 Bet-and-Get Bonus (Available in AZ, CO, CT, IN, LA, MA, MD, MI, NJ, PA, TN, VA, WV):
This popular offer gives you $300 in bonus bets over three days:
- Place a $10+ bet each day for three consecutive days
- Receive $100 in bonus bets after each day, totaling $300
Up to $1,000 in No Sweat Bets (Available in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY):
Fanatics Sportsbook gives you 10 days of No Sweat Bets. If your bet loses, you get up to $100 back in bonus bets each day—up to $1,000 total—so you can keep betting, even if you hit a rough patch.
Bettors in New York can triple their payout on tonight’s Final Four action with a 300% Profit Boost Token:
- Bet up to $50 on any eligible college basketball market
- If your bet wins, Fanatics Sportsbook triples your profit, giving you massive value on a single wager
3. BetMGM
- BetMGM Bonus Code: ACTIONGET
- BetMGM Promo: Bet $10, Get $150 in Bonus Bets if You Win
- BetMGM Bonus Code: TOPTAN1500
- BetMGM Promo: 20% First Deposit Match, Up to $1,500 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
Tonight’s Final Four action is the perfect time to build your betting card at BetMGM Sportsbook, where they offer three exciting Final Four betting promos to help new users boost their bankrolls. Whether you’re after bonus bets, a deposit match, or a first bet offer, there is a BetMGM bonus code for you.
Bet $10, Win $150 in Bonus Bets (Available in CO, MI, NJ, PA, and WV):
Sign up with BetMGM bonus code ACTIONGET, place a $10+ bet on any market, and if your bet wins, you receive $150 in bonus bets. Just keep in mind that your first wager must win to unlock the bonus.
20% Deposit Match Up to $1,500 (Available in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY):
Register with BetMGM bonus code TOPTAN1500 and receive a 20% deposit match, up to $1,500. To unlock the full amount, deposit $7,500 or more—but any deposit of $10+ qualifies for bonus funds.
First Bet Offer – Up to $1,500 in Bonus Bets (Available in AZ, DC, IA, IL, IN, LA, KS, KY, MA, MD, NC, OH, TN, VA, and WY):
If you’re looking to make a larger first bet, sign up with BetMGM bonus code TOPACTION. If your first wager loses, you get your stake back in bonus bets, up to $1,500, split into five equal parts.
4. 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 with Caesars Sportsbook promo code ACTION4BG1 tonight and place a $1 first bet to unlock $150 in bonus bets for the Final Four action. To receive the bonus, your initial wager must win.
If your bet is successful, Caesars Sportsbook credits your account with six $25 bonus bets, which you can use on any eligible Final Four market, including the exciting matchups between Florida vs. Auburn and Houston vs. Duke.
If you’re looking to boost your winnings tonight, Caesars Sportsbook has another addition to the best Final Four betting promos. New users who sign up with Caesars Sportsbook promo code ACTION4DYW can place a $1 first bet and instantly receive 10 Profit Boost Tokens—an excellent way to increase your value on the Final Four games.
Here’s how to unlock and use your Profit Boost Tokens for the Final Four:
- Register with Caesars Sportsbook promo code ACTION4DYW
- Place a $1 first bet on any Final Four market
- Instantly receive 10 Profit Boost Tokens
- Apply each token to bets up to $25 to double your profit on any win
These Profit Boost Tokens are perfect for betting on the Final Four matchups tonight, including moneylines, point spreads, or player props. Keep in mind that you must use all tokens within 14 days of activation.
5. DraftKings Sportsbook
- DraftKings Sportsbook Promo Code: Click Here
- DraftKings Sportsbook Welcome Bonus: Bet $5, Get $150 in Bonus Bets Instantly + $50 Bonus Bet on First Deposit
- DraftKings Sportsbook States Available: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY
No Final Four betting promos list is complete without DraftKings Sportsbook. Sign up today using the DraftKings promo code and get a $50 bonus bet right after making your first deposit.
Next, place a $5 initial wager on any market, like the odds for Cooper Flagg. DraftKings immediately rewards you with $150 in bonus bets, split into six $25 bet credits, perfect for tonight’s Final Four games.
6. FanDuel Sportsbook
- FanDuel Promo Code: Click the Link
- FanDuel Welcome Offer: Bet $5, Get $200 in Bonus Bets If Your Bet Wins
- FanDuel States Available: AZ, CO, CT, IL, IN, IA, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY
With the FanDuel promo code, you can unlock $200 in bonus bets by winning your $5 first bet. The best part? This welcome offer doesn’t require a minimum odds threshold, giving you the flexibility to bet on a strong favorite and increase your chances of securing the $200 bonus.
Make the most of one of the top Final Four betting promos tonight by placing a wager on today’s matchups: Florida vs. Auburn and Houston vs. Duke.
Alternative March Madness Final Four Betting Promos
With the Final Four tipping off tonight, you don’t have to stick to traditional sportsbooks to get in on the action. Kalshi and Underdog Fantasy offer unique, rewarding ways to engage with March Madness. Whether you're into predictive markets or building DFS lineups with top college basketball talent.
1. Kalshi Predictive Market
- Kalshi Promo Code: ACTION
- Kalshi Welcome Offer: Make $100 in Trades, Get $10 Sign-Up Bonus
- Kalshi States Available: 46 States + Washington D.C. (Not available in Illinois, New Jersey, Nevada, and Ohio)
Kalshi offers a fresh way to experience the Final Four by allowing you to trade on game outcomes instead of making traditional bets. This futures-style platform lets you speculate on everything from tournament results to economic and political events.
How to Claim Your Kalshi Bonus:
- Sign up using the Kalshi promo code ACTION
- Make $100 in trades across any market
- Receive a $10 bonus to continue trading and exploring
2. Underdog (DFS)
- Underdog Promo Code: TOPACTION
- Underdog Sign-Up Offer: 50% Deposit Match, Up to $1,000 in Bonus Funds
- Underdog 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
Jump into Daily Fantasy Sports with Underdog Fantasy by using the Underdog Fantasy promo code TOPACTION to receive a 50% deposit match bonus up to $1,000. Build your DFS lineups featuring players from tonight’s Final Four matchups.
Whether you’re entering a March Madness DFS contest or trying out a new pick’em strategy, this bonus gives you added flexibility and more chances to win big.