March Madness is one of the biggest sporting events of the year, but it ranks even higher on the list of annual highlights (for sports bettors in particular). The “Big Dance” offers nonstop action for a few frenzied days, with essentially unlimited action available with the best sportsbooks, who ramp up their March Madness betting promotions to attract bettors.
If you’re a pro bettor of have been around for a while, you might be looking to expand your repertoire ahead of the tourney, while “newbies” might be looking to get dialed in for the first time. Either way, there are plenty of March Madness betting promos available for users who sign up with new sportsbook apps.
Let’s talk about some of the very best March Madness betting promos available today, and how you can get the most out of these top March Madness betting sites. Here is bet365's Bet $5, Get $150 in Bonus Bets promo, which is one of the many great offers you can choose from:
March Madness 2025 Schedule
| Event | Date |
|---|---|
| Selection Sunday | March 16 |
| First Four | March 18-19 |
| First Round | March 20-21 |
| Second Round | March 22-23 |
| Sweet 16 | March 27-28 |
| Elite Eight | March 29-30 |
| Final Four | April 5 |
| National Championship Game | April 7 |
Top March Madness Betting Promos and Bonuses
Simply put, March Madness bonuses are promotions offered by sportsbooks during the NCAA tournament. These include bonus bets, parlay insurance, and promotional codes. These are the best ones:
Best Sportsbooks for March Madness Bonuses
It's a unique time of year, with just about all of the top sportsbooks offering special March Madness betting bonuses for new users. Let's talk about some of the most impactful March Madness promo codes and the sites where you can do your online sports betting during this year's March Madness.
BetMGM March Madness
BetMGM Sportsbook is one of the most venerable brands in the market, and they're coming in with a highly competitive March Madness offer. With bonus code ACTION1600, you can earn the following promo offer: Get a 20% Deposit Match up to $1,600 in Sports Bonus! This means that deposits up to $7,500 are fully covered by this offer.
bet365 March Madness
No sportsbook offers more breadth than bet365, and with this bonus offer, you can get a head start in checking out the full array of bets available with this giant online sportsbook:
- Enter code TAN365 when you sign up to choose between two options:
- If you're in Pennsylvania, the offer is slightly different:
Fanatics Sportsbook March Madness
As an up-and-comer in the sportsbook space, Fanatics has done a great job of bringing in new users with enticing welcome bonuses, and this March Madness betting season is no exception. Right now, users in most states can earn the following promo: Bet $30, Get $300 in Bonus Bets!
However, in AZ, CO, CT, IN, LA, MA, MD, MI, NJ, PA, TN, VA, WV, you can access this promo offer: Bet $30, Get $300 in Bonus Bets!
Lastly, for those in New York, the offer is: Sign Up and Get a 300% Profit Boost Token!
Kalshi March Madness
Kalshi may not technically be a sportsbook, but it's available in all 50 states and offers you the opportunity to cash in when you're right about March Madness and other events. With referral code ACTION, you can earn the following promo: $10 Bonus for Your CBB Tournament Picks With Our Code!
Caesars Sportsbook March Madness
With Caesars Sportsbook, you're accessing one of the true titans of the betting industry, and right now, you can do so with some added value in your back pocket. With code ACTION22BG1, you can the following promo offer: Bet $1, Get $150 in Bonus Bets If You Win! You can make an initial wager as low as just one single dollar.
This gives you the opportunity to spread the perks around to a few bets, giving you a very solid chance to hit at least a couple of your boosted wagers.
DraftKings March Madness Promo
You don’t need a code to access this DraftKings March Madness promo: Bet $5, Get $200 Instantly + a $50 Bonus Bet on First Deposit! Just sign up through any of the links you can find on this page and you can access a two-part offer. The DraftKings March Madness promo gives you the opportunity to earn both $50 in bonus bets after a first deposit and $200 after an initial $5 wager, giving you the start to a healthy bankroll with a fan-favorite sportsbook and daily fantasy sports site.
FanDuel Sportsbook March Madness Promo
Similarly, the FanDuel March Madness promo offers new users a bonus of $150 in bets for a minimal initial wager of $5 — no promo code needed by the way — making it a competitive option in the sportsbook market during the March Madness event.
ESPN BET March Madness
ESPN is, of course, part of the media frenzy surrounding March Madness, making ESPN BET sportsbook an excellent choice for a uniquely integrated betting experience. When you're signing up with the platform, use code TANBONUS to earn the following promo: Bet $10, Get $100 in Bonus Bets + 30 days of ESPN+! Just make a qualifying bet of just $10.
How to Use the March Madness Betting Promos
Signing up for a promo will add only one detail to the regular sign-up process for a sportsbook: it's just about entering a promo code or starting by following a particular link. Obviously, the exact minutiae will vary from platform to platform, but we'll take a look at the general framework of the process:
- Follow a link to the sportsbook website or download the online sportsbook's app
- Click on the prompt to sign up for a new account
- Add your personal details, including your full name, contact information like email address, your date of birth, etc.
- If there's a code associated with the offer, this is when you'll enter it
- You'll need to agree to the sportsbook's terms and conditions, including consent to the usage of geolocation software to ensure your ability to legally play with the sportsbook
- Finally, it's time to confirm the information you've entered and officially launch your account
- The first move with your new sportsbook account is to link a method of payment for deposits and withdrawals so that you can make an initial deposit and start playing.
- With funds in your account, it's time to start betting! If your welcome bonus is in any way linked to an initial wager, or bets placed within a certain period of time after signing up, make sure to account for that as you strategize your picks
March Madness Betting Promos Terms and Conditions
The exact terms and conditions will, of course, be different depending on the specific legal sportsbook and bonus offer, but there are a few near-universal things to keep in mind:
- Expiration dates for bonus bets, boosts, or other perks
- Minimum age
- Playthrough requirements
- Location-related eligibility restrictions
- Minimum or maximum odds
- Minimum or maximum wager/deposit size
- Market limitations
What states have the best March Madness betting promos?
Legal online sportsbooks have officially made their way into 33 U.S. states (West Virginia, Colorado, and Iowa among them), and special March Madness betting promos are available in most. But the best part of it all is that if you live somewhere with legal online sports betting, there's a good chance that there's an offer for new customers in your state, just be sure to check out the options:
March Madness 2025 Odds
The beauty of March Madness is that anyone can come out on top. Other than the eight teams that take place in the confusingly named First Four, every team has the exact same task: win six consecutive games. It's that simple. Of course, the path isn't equally challenging for every squad, and the odds of success are far from the same from team to team. There is one exception though to that latter clause: Duke and Auburn are essentially consensus co-favorites right now.
Most people also agree that if someone is going to crash the Duke-Auburn party, it's going to be Houston or Florida, as they're only other teams with odds below +1000 at different books. However, Auburn rivals Alabama and Tennessee are right behind, with a legitimate chance to make it into the Final Four (or even more).
After that, the middle of the board with March Madness is much tighter. Plenty of teams are sitting with odds between +2000 and +5000, making for a healthy middle class of moderate to long shots to win it all. Then, there are the legitimate "Cinderellas," as odds of up to +100000 are still posted for dozens of teams, some of which will not end up making the tournament at all. Just make sure to check all of the information out there to make the best possible bets this March Madness.
Below is a selection of March Madness futures odds: Updated March 23, 2025 - Odds Provided by bet365 - Subject to Change
| Team | Future Odds |
|---|---|
| Duke | +300 |
| Florida | +360 |
| Auburn | +500 |
| Houston | +600 |
| Alabama | +2000 |
| Tennessee | +2200 |
| Texas Tech | +2500 |
| Gonzaga | +2800 |
| St. Johns | +2800 |
| Michigan State | +3000 |
Best March Madness Betting Promo Types
While the exact terms and conditions will vary from sportsbook to sportsbook, there are a few general types of promos that you'll see across the industry. Here’s a quick rundown of the most common ones:
Bonus Bets
One of the best March Madness bonuses, this bonus bets promotion rewards new customers with extra funds after signing up. Just place a qualifying wage and you’ll receive bet credits to use on March Madness betting. Just keep in mind these funds aren’t immediately withdrawable, but if your bet wins, you can cash out.
No Sweat Bets
Also known as a first-bet safety net, this offer allows you to make an initial bet with the knowledge that if your wager loses, you'll be refunded by way of bonus bets.
Profit Boosts & Odds Boosts
A profit boost lets you double your winnings on a qualifying bet, increasing your payout beyond standard odds. Many online sportsbooks, including Caesars Sportsbook and BetMGM Sportsbook, feature these during the March Madness in 2025.
P.S: Odds boosts work similarly but are calculated differently.
Deposit Matches
A classic March Madness betting promotion, this bet offer gives you a percentage match on your first deposit. Some sportsbooks, like Fanatics Sportsbook, provide a full match, while others offer a partial one.
Action Network's Thoughts on March Madness
Betting on the March Madness tournament is exciting, but finding the right bets isn’t always easy. That’s where Action Network comes in. We’re bringing expert analysis, in-depth picks, and real-time updates to help you make the most of your wagers. Whether you're after the best March Madness betting promos, deep-dive stats, or key trends, our tournament coverage makes sure you’re always a step ahead.
Responsible Gambling and March Madness Betting
As thrilling as March Madness betting can be, staying in control is key. Set limits, avoid chasing losses, and make sure you’re wagering responsibly. If you need support, our resources and tools cover responsible gaming tips, or you can reach out to 1-800-GAMBLER for 24/7 confidential help, go to GamTalk.org, or attend a Gamblers Anonymous meeting.
Final Thoughts & Tips for Using the Best March Madness Betting Promos
Not all March Madness betting sites are the same, and the best online sportsbooks' promos will depend on what works for you. For example, pro bettors may prioritize fast-updating odds for live bets, while beginners might want an intuitive app. See how it all depends?
Whether you're after a FanDuel March Madness promo, a DraftKings March Madness promo, or March Madness sportsbook promos, finding the right platform, staying safe and following the rules set by the online sportsbook of your choosing is key. The more research you do, the better your bets will generally turn out, and the more fun you'll have. Always avoid gambling problems when you can!
And always be cognizant of terms and conditions when it comes to these welcome offers, as a mental lapse can very easily negate many of the perks they afford.
March Madness betting promotions include bonus bets, deposit matches, sweat bets, and risk-free offers designed to give sports bettors extra value when wagering on the tournament.
Top March Madness betting sites like Fanatics Sportsbook, BetMGM Sportsbook, and DraftKings Sportsbook offer major promotions. FanDuel March Madness promo and DraftKings March Madness promo provide easy-to-claim bonuses, while sites like Caesars and Bet365 deliver high-value offers. It all depends on what you're after.
To access March Madness sportsbook promos, you’ll usually need to be a new user and make a qualifying wager. Some offers may require a promo code, while others activate automatically when you sign up and deposit, check out the list above to see which does which.
Odds vary across online sportsbooks, so the best way to figure this out is by comparing lines on multiple legal sports betting platforms. Odds boosts are also available on sites like Caesars Sportsbook and FanDuel Sportsbook!
Current March Madness betting favorites include Auburn and Duke as national championship frontrunners. Houston, Florida, Tennessee, and Alabama are strong Final Four contenders.
New bettors can get a no-sweats bet, where a lost initial wager is refunded as bet credits. Some sites even let you double your winnings on a qualifying bet.
Yes, as long as you use legal sportsbooks regulated in your state. Always check for security services and what eligibility restrictions apply to make sure you're having a secure betting experience. If you have a gambling problem, help is available: reach out to 1-800-GAMBLER for 24/7 confidential help, go to GamTalk.org, or attend a Gamblers Anonymous meeting. Your future is in your hands.