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If you’re looking for the best March Madness betting sites, you’ve come to the right place.

Whether you’re a die-hard college basketball fan or you only tune in when the madness is at its peak, everyone agrees that the NCAA Tournament is the best time of year for sports fans at large.

With so many college basketball betting sites to choose from, we’ve compiled you a detailed breakdown with everything you need to know in order to make the most out of using each of the March Madness sportsbooks.

The latest March Madness odds have the Michigan Wolverines atop the board with +700 odds to repeat as national champions. The Duke Blue Devils are just behind at +800 and the Florida Gators are third with 10/1 odds.

The 2026 national champion runner up, UConn, is 12/1 to win it all in 2027 and Arizona, Michigan State, Houston and Illinois are all tied with the fifth-best odds at 16/1.

Now that you know the odds, here are the March Madness betting apps to download and use during the tournament.

One of the most well-known operators in the world, bet365 has built a sportsbook that bettors have come to love and it’s one of the best college basketball sportsbooks.

New users signing up on the platform have two options for a welcome bonus: Bet $10, get $365 in bonus bets win or lose or get a first bet safety net up to $1,000 in bonus bets!

The first promo is simple and arguably one of the best promotions around since you get the bonus no matter the outcome of the first bet. The second promotion protects you from a bad beat, or bad beat, up to $1,000.

They offer some fun early payout promotions for college basketball bettors. If the team you bet goes up by 18 points at any point in the game, your bet gets marked as a winner no matter the outcome.

That could come in handy for those No. 1 vs. No. 16 games to give you a sweat free afternoon and it also protects bettors if madness ensues and a comeback happens.

Available in: Arizona, Colorado, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Missouri, North Carolina, New Jersey, Ohio, Pennsylvania, Tennessee, and Virginia.

BetMGM is another one of the more well-know college basketball betting apps bettors should familiarize themselves with. If you sign up at BetMGM, you’re eligible for their introductory offer: Get a 20 percent first deposit match up to $1,500 in sports bonus. Essentially, BetMGM will match 20 percent of whatever you deposit into your account at sign up. To get the full bonus, you’ll have to deposit $7,500.

If you sign up in Michigan, New Jersey, Pennsylvania, or West Virginia, there’s an additional offer: Bet $10, get $150 in bonus bets if you win. This promo isn’t as good as getting $150 win or lose, but it does give users an extra incentive to nail their first bet after sign up.

BetMGM also has offers for existing users like their odds boost token for college basketball bettors, which can be used on any game.

Available in: Arizona, Colorado, Iowa, Indiana, Kansas, Kentucky, Massachusetts, Maryland, Michigan, Missouri, North Carolina, New Jersey, Pennsylvania, Tennessee, West Virginia, Wyoming.

Fanatics sportsbook is consistently building up its stock by catering to casual and new bettors. Nothing exemplifies that more than their bet with Kendall campaign for the big game.

They also have two awesome offers for those opening new accounts: Bet $5 Get $200 FanCash Instantly + Profit Boost Tokens and Get Up to $1,000 Matched in FanCash.

Here’s what you need to know: For the first promo, users can wager at least $1 on a qualifying market for the first 10 days of their account being open to receive bonuses in FanCash equal to their stake. The maximum amount of FanCash a bettor can receive per wager is $100 for a total of $1,000 over that span.

The second promotion is similar, but instead of matching your required $10 daily wager, you can get $100 in FanCash daily for the first three days of your account being open. Pretty sweet deal.

Fanatics lets college basketball bettors boost their profits up to 25 percent when they place a three-leg parlay on college hoops games.

Available in: Arizona, Colorado, Connecticut, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Michigan, Missouri, North Carolina, New Jersey, Ohio, Pennsylvania, Tennessee, Virginia, Vermont, Washington DC, West Virginia, Wyoming.

The newest face among the best March Madness betting sites, theScore Bet has the experience of the more well-know players thanks to its past ties to Barstool and ESPN.

New users can take advantage of their latest offer: Bet reset up to $1,000. This one is simple: lose your first bet and get bonus bets equal to your stake up to $1,000. Bettors in Michigan, New Jersey, Pennsylvania, West Virginia have another option when signing up: Bet $10, get $100 in bonus bets if you win.

Available in: Arizona, Colorado, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Missouri, North Carolina, Ohio, Tennessee, Virginia.

Caesars is one of the biggest players in the betting space with plenty of name recognition due to its longtime Las Vegas ties. Among the March Madness sportsbooks offering promotional bonuses for new users, Caesars stands out with a quality offer: Get a bet match up to $250 win or lose.

New users can get a bet match for their first wager up to $250 in bonuses no matter the outcome of their first bet. So if you bet $100, you get $100 in bonus bets that can be accessed for up to 30 days.

Available in: Arizona, Colorado, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Missouri, Maryland, Maine, Michigan, North Carolina, New Jersey, New York, Ohio, Ontario, Pennsylvania, Tennessee, Virginia, Washington DC, West Virginia, Wyoming.

FanDuel dominates among the many college basketball sports betting apps. Chances are you know about them whether you’re a seasoned bettor or completely new to the space. For that small group that is unfamiliar, FanDuel has two offers for new users who are looking for the best March Madness betting sites: Get Up To $300 Back in Bonus Bets! or no sweat first bet up to $2,500 back in bonus bets for web users.

The latter promotion allows new users to wager the largest sum of any no sweat/safety net offers at these sportsbooks.

Available in: Arizona, Colorado, Connecticut, Illinois, Iowa, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Michigan, Missouri, North Carolina, New Jersey, New York, Ohio, Pennsylvania, Tennessee, Vermont, Washington DC, West Virginia, Wyoming.

DraftKings is another Goliath among the March Madness sportsbooks. If you’re new to betting, you are most likely signing up here because it’s one of the operators that knows to pump out ads during every sporting event. If you end up signing up, make sure to get their welcome offer: Bet $5, Get $200 in Bonus Bets + 100% NCAA Tournament Winner Profit Boost.

Available in: Arizona, Colorado, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Michigan, Missouri, North Carolina, New Jersey, New York, Ohio, Pennsylvania, Tennessee, Virginia, Vermont, Washington DC, West Virginia, Wyoming.

There are countless ways to get in on the madness even before the NCAA Tournament starts. Most college basketball betting apps have odds for who will win conferences in the regular season and they will offer odds for games during conference tournaments as well.

Once we get through Selection Sunday, every game for the first week of the tournament, including the First Four matchups on Tuesday and Wednesday, will have a betting odds.

Bettors can also wager on futures markets throughout the tournament. If you want to bet on who will make the Final Four or win the national championship, those markets will be available at all the best March Madness betting sites.

Some states give bettors more freedom than others when it comes to college sports. Some states won’t allow bettors to wager on games involving teams within its borders. Some don’t let you place futures bets on in-state teams either.

Other states restrict what college basketball player props are allowed if at all. Here’s a break down of the March Madness rules and restrictions for each state.

Bettors who live in Connecticut, Illinois, New Jersey, New York, Virginia and Washington are not allowed to wager on teams in their own state, but there are some caveats for March Madness. Connecticut allows bettors to wager on in-state teams if they make the tournament, but only futures. So no betting on UConn in the first round.

Bettors who live in Arizona, Colorado, Mississippi, Missouri, New York, Pennsylvania, Tennessee, or Virginia are prohibited from wagering on college basketball player props.

Like anything, beauty is in the eye of the beholder. However, we believe that the best March Madness betting site is bet365 after a phenomenal showing in 2026, where they offered some really impressive promotions for all users.

Bet365 and FanDuel each posted an early payout on double-digit leads. All you need is your team to be leading by 10 or more points and your bet automatically cashes. This actually hit when Duke played Sienna in a 2 vs. 15 matchup in round one. No one knows if they will bring it back, but it was a very fun promotion for entertainment purposes.

Malik Smith has been immersed in the sports betting industry since 2017. He’s a data nerd with a particular focus on the NBA and combat sports. He spends his weeknights in the winter looking for edges on plus-money NBA player props.