The Celtics led by as many as 21 points and held off a late Mavericks rally to win 106-99 and take a 3-0 series lead in the NBA. Boston can win its 18th NBA Championship on Friday in Game 4 from the American Airlines Center at 8:30 p.m. ET. You can wager on the games after using the best NBA Finals betting promos & bonuses. This is an easy way to load up on bonus bets and first-bet offers from the best online sportsbooks.

These NBA Finals betting promos and bonuses are among the top welcome offers for new customers and we can’t recommend them strongly enough to start your NBA betting journey. Create an account using these sportsbook promo codes and get bonus bets, first-bet offers, bet protection and more.

If you’re ready to secure more than $5,000 in bonuses from the sportsbooks featured in our review, then get familiar with the best NBA Finals betting promos and bonuses designed to give new customers lots of bonus bets and big limits with the most comprehensive NBA betting apps.

Best NBA Finals Betting Promos & Bonuses to Use for NBA Playoffs

Note: Variations of these offers are now available in N.C., as North Carolina sports betting launched on March 11. Check out the lucrative North Carolina sportsbook promos that are available for new customers.

BetMGM NBA Finals Betting Bonus Code SBWIRE

There are a ton of ways to play on each NBA game, so it’s always great to have several opportunities at your disposal. As one of the best NBA Finals betting promos, if you create an account today with the BetMGM bonus code SBWIRE, then you’ll receive up to $1,500 in bonus bets if your opening wager is a loss.

It’s easy. Place your first real-money wager using NBA odds to make basketball bets or any of the 20 other sports you’ll find at BetMGM. If your bet settles as a loss, you’ll get a refund, as bonus bets, matching the amount you bet.

For first-bet losses of $50 or more, you will get back five bonus bets, each worth 20% of your wager. For first-bet losses of less than $50, you’ll get a single bonus bet.

You’ll have seven days to play the bonus bets. To turn a bonus bet into cash with the best NBA Finals betting promos, you should know BetMGM (and all the other online sportsbooks mentioned in this article) abides by a 1X playthrough requirement. This means a bonus bet needs to win just one time for you to collect the profit in cash.

For new sports bettors in North Carolina, use the BetMGM North Carolina bonus code to make live bets and get $150 in bonus bets.

Caesars Sportsbook NBA Finals Betting Promo Code – SBWIRE1000

Caesars Sportsbook delivers the biggest opportunities, especially as one of the best NBA betting promos. If you start a new account with the Caesars Sportsbook promo code SBWIRE1000, you get a first bet up to $1,000 on Caesars. That’s one of the biggest limits on the market.

When you have this offer, it means Caesars Sportsbook has your back as a one of the leading NBA betting sites on your first bet when it’s anywhere from the minimum of $10 and covers up to $1,000. If your first bet wins, then you become wealthier. But if your first bet falls short, don’t fret. Caesars Sportsbook will put the amount of your first bet back into your account, up to a maximum of $1,000, as one bet credit.

You’ll get 14 days to play this bet credit from one of the best NBA Finals betting promos & bonuses. It needs to win just once for you to pocket the profit in cash.

Fanatics Sportsbook NBA Finals Playoff Betting Promo

The Fanatics Sportsbook promo earns new customers up to $1,000 in bonus bets – up to $100 a day for the first 10 days after they open a new account.

To participate using one of the best NBA Finals betting promos and bonuses, you must place a qualifying wager of $5 or more on any market with odds of -200 or longer each day. Once that bet settles, you will receive a bonus bet equal to the amount of your wager, up to $100.

You will automatically be opted in on your first day but must manually opt-in on each day after that. You will receive your bonus bet within 72 hours after your wager settles, and those bonus bets expire in seven days.

DraftKings Promo Code For NBA Finals Betting

Register for a DraftKings account with the DraftKings promo code and you’re assured of $150 in bonus bets the moment you make a $5 first bet. It doesn’t get any easier than this.

As soon as you make a minimum $5 first bet, DraftKings sends you six $25 bonus bets. You get seven days to play your bonus bet on anything you find at DraftKings, which offers great tips for NBA picks and parlays.

As a special extra for your NBA Finals betting, you can also opt in and get one No Sweat NBA single game parlay each day of the finals.

For those bettors looking to use the DraftKings North Carolina promo code, to create a new account, you can get $200 in bonus bets, guaranteed, after a $5 first bet now that online sports betting is live in the Tar Heel State.

FanDuel NBA Finals Betting Promo Code

You can sign up for as many of the best NBA Finals betting promos as you wish. You’re allowed to take advantage of all of them if you like. Keep this in mind as you evaluate what FanDuel has to offer. If you launch an account with the FanDuel promo code and make a $5 first bet, you’ll get $200 in bonus bets if your bet wins. Bettors in Ohio & Massachusetts get $300 in bonus bets if their $5 opening wager wins.

The $200 in bonus bets shows up in your account within 72 hours, guaranteed, and expire after seven days. And check out the flexibility in these bonus bets: FanDuel, which is also a great stop for NBA futures betting, lets you decide how many bonus bets to make — and how much to play on each bet.

If you just want to make one $200 bonus bet, that’s cool. If you’d rather break the $150 into smaller amounts, that’s fine, too.

Each time one of your bonus bets wins, the profit is all yours in cash.

And for prospective North Carolina bettors, you can register for an account using the FanDuel North Carolina promo code and get $200 in bonus bets instantly after a first bet of $5 or more now that online wagering is live.

Best NBA Betting Promos – Bet Now On NBA Playoff Odds

Boston proved to be the class of the Eastern Conference during the season. The Celtics were more than a dozen games clear of their closest competitors and cruised to a top seed and home-court advantage throughout the playoffs. It’s no surprise that most of the top sports betting apps have Boston as the favorite to win its first NBA championship since 2008.

Now that the Celtics have reached the finals they remain a favorite as the the series with the Mavericks begin. Boston is -225 at BetMGM, -220 at FanDuel, -215 at Caesars Sportsbook and -210 at DraftKings on the opening lines to win the NBA Championship. Dallas sits as the underdog with opening odds of +185 at FanDuel, +180 at BetMGM and Caesars Sportsbook and +175 at DraftKings.

The NBA’s “second season” has already been memorable. Expect more of the same from the Finals. Take a look at the best NBA playoffs betting promos when you make your first wager, and you’ll receive bonus bets and first-bet offers. You can choose your favorite among these NBA Finals betting promos and bonuses or try them all!