Best Online Casino Bonuses in the US in March 2026

My Top 5 Online Casino Bonuses

All our top-rated US online casinos are strong in the bonus department. In fact, they’re strong in all areas, including games, payments, and customer support.

I’ll focus on each casino’s welcome offer, casino bonuses for existing players, and features that set them apart.

1. BetMGM Casino - $25 No Deposit Bonus + 100% Deposit Match Up to $1,000

⭐ WSN Rating: 4.8/5
📜 Legal in: MI, NJ, PA, WV
💰 Casino Bonus Offer: $25 No Deposit Bonus + 100% Deposit Match Up to $1,000
🤩 Promo Code: WSNCASINO
✅ Full review: BetMGM Casino review

Claim Your BetMGM Casino Bonus

BetMGM Casino offers the best no-deposit bonuses. While wagering requirements do apply, BetMGM consistently provides more no-deposit bonuses and giveaways than other US online casinos.

It all starts with the welcome bonus.

Using the BetMGM Casino bonus code WSNCASINO during registration gets you a $25 no deposit bonus ($50 and 50 bonus spins if you are in West Virginia). Once you choose to deposit, you’ll get a 100% deposit match up to $1,000 ($2,500 in West Virginia).

From there, you can enter daily prize draws. In 2026, a standout is the Family Feud Daily Round. I also like the Arcade Claw bonus offer, which lets you literally pick up prizes worth up to $5,000.

Finally, I can’t ignore BetMGM Casino’s loyalty program. What’s unique about this program is that it evolves with the seasons. For example, in the run-up to Christmas, the Holiday Gift Shop gave players a chance to swap points for festive gifts, including jewelry and tech.

• Bonuses available at BetMGM Casino: No deposit bonus, welcome bonus, loyalty rewards, free-play giveaways, bonus spins, and bonus drops.

2. FanDuel Casino - Deposit $10 and get 500 Bonus Spins & $40 In Casino Bonus

⭐ WSN Rating: 4.7/5
📜 Legal in: CT, NJ, MI, PA, WV
💰 Casino Bonus Offer: Deposit $10 and get 500 Bonus Spins & $40 In Casino Bonus
🤩 Promo Code: Not required
✅ Full review: FanDuel Casino review

Claim Your FanDuel Casino Bonus

Join FanDuel Casino and take advantage of a special welcome offer - 500 bonus spins and $40 in bonus credits.

To claim this offer, simply sign up using our link and make a first deposit of at least $10. In my opinion, this is a fantastic offer for casual players, as it provides a lot of value without requiring a big investment.

The bonus spins are credited to your account over ten days, with 50 spins arriving each day. These bonus spins can be used on any slot, including the recent addition to FanDuel: the Huff N’ More Puff slot.

I really like this format. Online casino promotions that continue to unfold after you’ve initially signed up make the experience more engaging.

On the other hand, the $40 in bonus credits is credited to your account right away, and you can use it on any game you like. The bonus spins expire five days after they are credited, while the bonus credits expire after seven days.

The great thing about this casino bonus offer is that both the free spins and the casino bonus have a 1x playthrough wagering requirement. Meaning, you only have to wager them once, and you get to keep all your winnings.

Once you've claimed the welcome bonus, be sure to explore FanDuel's full promotions page, which includes daily jackpots, boosted spins, and a referral bonus.

• Bonuses available at FanDuel Casino: No deposit bonus, welcome bonus, cashback, free spins, and reload bonuses.

3. Caesars Palace Online Casino - $10 Sign-Up Bonus + 100% Deposit Match up to $1,000

⭐ WSN Rating: 4.6/5
📜 Legal in: NJ, PA, MI, WV
💰 Casino Bonus Offer: $10 Sign-Up Bonus + 100% Deposit Match up to $1,000
🤩 Promo Code: WSNLAUNCH
✅ Full review: Caesars Palace Online Casino review

Claim Your Caesars Casino Bonus

Caesars offers you two welcome bonuses. The first is a $10 no deposit bonus that is released once you successfully create an account using the Caesars Casino promo code WSNLAUNCH. After that, you’ll receive a first deposit match bonus worth up to $1,000. 

You’ll need to wager 1x to release your no-deposit bonus and 15x to release your deposit bonus. The only other caveat you need to know, and it’s one I don’t love, is that you can only clear your bonuses by playing selected slots. I often tell newbies to play slots because they allow you to clear bonuses efficiently, but I also like being given a choice. 

Beyond its welcome bonus, Caesars Palace Online Casino does a great job of creating unique free spins bonuses. It offers all the usual promotions, like deposit bonuses, but it mixes things up with draws. The best example of its prize draw was the 100,000 bonus spins giveaway.

Bonus spins are great, but they’re only suitable for slots players. That’s why I want to mention Caesars Rewards. This loyalty program is suitable for everyone, and not just because you start earning points when you wager $5 or more.

Caesars Palace Online Casino runs a variety of promotions that give you more loyalty points, such as the 5x Reward Credit Multiplier for playing the Game of the Week. You can also earn points for spending money at Caesars' 50+ land-based casinos. This means you’ve got plenty of ways to earn online casino bonuses, hotel discounts, free meals, luxury vacations, and more.

• Bonuses available at Caesars Palace Online Casino: No deposit bonus, welcome bonus, loyalty rewards, leaderboards, and slot spins giveaways.

4. Horseshoe Casino - $1,000 Slot Deposit Match + 20 Bonus Spins

⭐ WSN Rating: 4.5/5
📜 Legal in: NJ, PA, MI, WV
💰 Casino Bonus Offer: $1,000 Slot Deposit Match + 20 Bonus Spins
🤩 Promo Code: WSNPROMOGOLD
✅ Full review: Horseshoe Casino review

Claim Your Horseshoe Casino Bonus

Horseshoe stands out by offering a "Welcome Week" instead of a single-day bonus. Their offer typically includes a 100% deposit match up to $1,000, split into two parts: one for your first day and a second for your seventh. This keeps your bankroll fresh for much longer than competitors.

You also get 20 Bonus Spins on premium titles like Double Top Dollar with a player-friendly 1x wagering requirement on those spin winnings.

What truly seals the deal is the Caesars Rewards integration. Every bet you place online earns Tier Credits and Reward Credits that are 1:1 with Horseshoe’s famous physical resorts. You aren't just playing for digital credits; you’re earning toward free hotel stays, dining, and VIP experiences at over 50 destinations. If you want a bonus that has "real world" value beyond the screen, Horseshoe is the premier choice.

• Best Feature: Seamless 2-stage deposit match + 20 Bonus Spins.

• Low Barrier to Entry: Start with a minimum deposit of just $5.

• Loyalty: Fully integrated with the Caesars Rewards ecosystem.

• Bonuses Available: Welcome Week deposit matches, bonus spins, loss rebates, reload bonuses, refer-a-friend spins, and Caesars Rewards integration.

5. BetRivers Casino - 100% Cashback Bonus up to $500 + 500 Bonus Spins

⭐ WSN Rating: 4.5/5
📜 Legal in: NJ, PA, MI, WV
💰 Casino Bonus Offer: 100% Cashback Bonus up to $500 + 500 Bonus Spins
🤩 Promo Code: WELCOME
✅ Full review: BetRivers Casino review

Claim Your BetRivers Casino Bonus

BetRivers is the top choice for players who value transparency and ease of withdrawal. While other casinos bury their bonuses under 15x or 30x wagering requirements, BetRivers is famous for its industry-leading 1x playthrough.

This means if you receive $200 in bonus money, you only need to bet it once to turn it into withdrawable cash. The welcome offer is built on a "Second Chance" model: they refund 100% of your net losses during your first 24 hours of play (up to $500 in most states), giving you a genuine safety net to explore 2,000+ games.

Use BetRivers casino promo code WELCOME or CASINOBACK to sign up.

The long-term value at BetRivers comes from the iRush Rewards program and the unique Bonus Store. As you play, you earn "Bonus Store Points" that you can spend on specific rewards of your choice, like wheel spins, scratch cards, or even luxury gifts, rather than waiting for the casino to send you a random offer. With daily Free Bingo games that award real bonus money and "Happy Hours" that double your loyalty points, it is a highly interactive platform that rewards consistent, daily players.

BetRivers Quick Stats:

• Best Feature: Industry-best 1x wagering requirement on all bonus funds.

• Low Barrier to Entry: Activate your welcome offer with a $10 deposit.

• Loyalty: Highly flexible iRush Rewards system with a transparent "Bonus Store."

• Bonuses Available: 24-hour loss recovery (Second Chance), 100% deposit matches, 500+ bonus spins, daily free bingo, "Happy Hour" point multipliers, and iRush Rewards.

All Online Casino Bonuses

US online casino promo codes are always changing, which is why we keep an eye on the market. Below are some of the best real money casinos with great bonuses that you can claim right now.

Types of Casino Bonuses

Casino bonuses can be confusing to new players, particularly when it comes to wagering requirements. I too was confused when I first started out. To save you time, I’ve condensed everything I know about every type of casino bonus currently available at online casinos.

1. Deposit Match Bonus

Match bonuses double or sometimes even triple your starting deposit. For example, if you deposit $50, you’ll receive $50 worth of bonus credit.

The majority of online casino welcome bonus offers in the US are deposit matches. This helps distinguish them from reload bonuses that are a percentage of your deposit amount. 

You’ll often see these bonuses referred to as 100% deposit match offers. The “100%” refers to the fact that your bonus is worth 100% of your deposit’s value, rather than an amount more commonly associated with reload offers, such as 25%.

2. No Deposit Bonuses

A no-deposit casino bonus is exactly what it sounds like: a reward credited to your account without requiring you to add any funds first. While many of the best online casino promotions require deposits, these offers are also available for other reasons, such as simply creating an account.

For example, an online casino sign-up bonus is released once you’ve completed the registration process. In other words, you’re being rewarded for signing up to a new online casino.

However, keep in mind that no deposit bonuses still have wagering requirements. Additionally, to withdraw any winnings, you will usually need to make a small deposit to verify your payment method. The upside, of course, is that you have a good reason to do so.

3. Free Spins Bonuses

Free spins bonuses allow you to play selected slots without spending a cent. The beauty of these bonuses is that spins are the same as real-money wagers. This means you're playing for cash prizes.

In most cases, the money you win from bonus spins will be paid in site credit that can’t be withdrawn until you hit a playthrough target. The best casino bonus offers in this category pay prizes in cash that you can withdraw instantly.

Bonus spins have a set value (usually 10 cents or 20 cents) and can only be used on selected slot games.

4. Low Minimum Deposit Casino Bonuses

Low minimum deposit bonuses are the perfect middle ground for players who want to minimize risk while still playing for real money. By depositing a small amount, typically $1, $5, or $10, you can unlock welcome rewards like free spins or match bonuses that would otherwise be out of reach.

These offers are an excellent way to test a casino’s interface and payout speed without a major financial commitment. Just be sure to check the wagering requirements, as smaller deposits sometimes come with stricter playthrough rules.

• Best $1 minimum deposit casinos

• Best $5 minimum deposit casinos

• Best $10 minimum deposit casinos

5. Cashback Bonuses

A cashback casino bonus is essentially a refund on your bad luck, returning a percentage of your net losses over a specific period. Losses are a natural part of casino gaming, but these promotions act as a safety net to help you recoup some of those funds.

The refund is calculated from your net loss (total wagers minus bonuses minus wins), and in most cases, it is paid out weekly.

Cashback is arguably the best casino bonus because rebates are often paid as site credit. Unlike standard bonuses, site credit usually has a 1x wagering requirement. This simply means you can use it to play a game once, and any winnings are real cash you can withdraw.

5. Casino Bonuses for Existing Players

Bonuses for existing players are unique offers that fall outside the standard categories. Instead of being available year-round, these promotions are usually tied to specific celebrations or moments and include a mix of casino bonuses.

While casinos can get creative with these, the two most consistent types you will encounter are Seasonal Bonuses and Birthday Bonuses.

Seasonal Bonuses

The lead-up to holidays and major cultural events is a good time for casino bonus hunters. The theme of these promotions matches the event.

For example, if it’s the festive period, a casino might run a month-long Advent calendar promotion that gives away new bonuses every day.

Christmas, Easter, and Thanksgiving are the best times to collect seasonal bonuses. Every top-rated US casino has new offers during these times, so don’t be afraid to shop around for good seasonal deals. You can find the latest promotions for specific holidays here:

• Thanksgiving Casino Bonuses

• Black Friday Casino Bonuses

• Christmas Casino Bonuses

• Easter Casino Bonuses

• St. Patrick's Casino Bonuses

• Halloween Casino Bonuses

Birthday Bonuses

One of the perks you often get for climbing the ranks of an online casino’s loyalty program is a special online casino birthday bonus. In most cases, you’ll receive a few free spins or a reload bonus.

The best bonus online casino sites may also give you wager-free rewards, which means any prizes you win get paid in cash.

You must verify your identity to use legit online casinos. Therefore, it’s not a good idea to lie about your date of birth just to get an instant bonus. Be truthful, and you’ll get a reward when the time comes.

What Should I Watch Out for When Claiming a Casino Welcome Bonus?

Follow these tips to ensure you unlock your welcome bonus:

1. Make Sure You’re a New Customer

You can only claim welcome bonuses if you’re a new customer. That means you haven’t previously created an account with any site connected to the casino.

The most common mistake I’ve seen people make is thinking they’re a new customer when they’ve already got a sportsbook account.

Let’s say you joined FanDuel Sportsbook in 2024. It’s now 2025, and you want to play some online casino games. You can’t open a new account at FanDuel Casino and claim the welcome bonus because you’re already a customer.

So, if you’re trying to claim an online casino welcome bonus, make sure you’re a completely new customer. 

2. Does Your Deposit Qualify?

Deposits must meet or exceed the minimum limit to qualify for bonuses. The best casino welcome bonus offers usually have a minimum deposit of $10, but some low-minimum-deposit casinos accept $5.

You should also check that your chosen casino payment method is eligible.

3. Play Through Your Bonus Like a Pro

Unless it’s a wager-free bonus, you’ll need to hit a casino playthrough target before you can request a withdrawal. These targets are always multiples of your bonus. For example, if you claim a $10 bonus with a 5x playthrough, you need to wager 5 x $10 ($50).

The most efficient way to meet playthrough targets is to play popular online slots. Not only are betting rounds over sooner in slots than in other casino games, but 100% of your wager counts. That’s not the case for most casino table games.

The average contribution weighting - i.e., the percentage of a bet that goes towards your playthrough target – for table games is 10%. So, if you wager $1 on blackjack, only 10 cents goes towards your target.

The same $1 wager on a slot game clears $1 of your target, which is why pros play slots when they’re chasing bonuses.

4. Watch the Clock

All offers have an expiration date. In most cases, you’ll have between seven and 14 days to hit your playthrough target.

Some online casino bonuses have a 30-day playing period. Whatever the time limit, make sure you’ve hit your playthrough target before the bonus credits expire.

5. Don’t Game the System

This tip is one that very few people talk about, simply because they don’t know about it. I’ve been around the block more than once, which is why I never try to game the system.

By that, I mean you shouldn’t play in a way that’s either illegal or that contravenes a casino’s bonus terms. Illegal activities include fraud (i.e., having multiple accounts), exploiting a casino’s software, and playing with money that isn’t yours.

Contravening a casino’s bonus terms is when your bets breach the rules. For example, betting on restricted games doesn’t contribute to your playthrough target. Another overlooked mistake is system betting.

Otherwise known as low-risk betting, these strategies are frowned upon by online casinos. If you’re deemed to be using a low-risk strategy, such as covering over 90% of the board in roulette, your bonus will be revoked.

How Do I Claim My Online Casino Welcome Bonus?

Claiming your online casino welcome bonus is easy. As long as you’re a new and eligible player (21+ in a state with legal online casinos), it takes just four steps to claim an online casino welcome bonus:

1. Use our safe sign-up links to start the registration process.

2. Enter your details and enable the casino’s geolocation tracker to register. *Enter a bonus code, if required. If you use our links, the code will be added automatically.

3. Verify your account via the link sent to your inbox.

4. Open the cashier page and make a qualifying deposit.

Complete those steps, and you’ll receive your casino bonus as a new customer.

How to Use Casino Bonuses Responsibly

I’ve shared my top tips on welcome bonuses, which also apply to ongoing offers such as reload bonuses. However, there’s one crucial topic we haven’t covered yet: playing responsibly.

While I’ll end this guide with general advice on responsible gambling, I want to focus first on how you should view bonuses. Treat every offer, even the very best ones, as an optional "extra," not a necessity.

It can be tempting to chase every promotion, especially when they offer payouts of $1,000 or more. But if you play recklessly, you risk losing far more than you stand to gain. This usually happens when you:

• Skip the T&Cs: You claim a bonus blindly and get stuck fighting an unreasonable playthrough target.

• Overspend: You deposit more than you can afford just to unlock a bigger match.

The result is always the same: you end up playing more often and for higher stakes than you should. To avoid this trap, keep these three rules in mind:

1. Bonuses are extras; never count them as part of your bankroll.

2. Read the terms so you fully understand the requirements before you start.

3. Walk away if you can't comfortably hit the playthrough target; it’s better to let a bonus expire than to chase losses.

Follow these three rules, and you won’t make the same mistakes other players do.

Casino Sites to Avoid

We only endorse and work with licensed online casinos that are regulated in the states where they operate. We recommend avoiding unregulated offshore casinos, regardless of how appealing their welcome bonuses may seem. If things go wrong, you won’t have any legal protection.

Here are three online casino sites that I recommend avoiding:

• Bovada Casino: Bovada is a casino to avoid due to its unregulated practices and poor customer service. Based in Costa Rica, this offshore casino accepts players from the US despite not having a domestic gambling license. Several states have sent cease-and-desist letters to Bovada to prevent it from advertising as a US-based casino.

• Raging Bull Casino: The casino has received several customer complaints about non-payment of winnings. The company claims to be licensed in Curaçao, although there is little information online about its licensing or ownership. They market to players in the US despite not having a legal license to operate here.

• Black Lotus Casino: The state of Michigan sent Black Lotus Casino a cease-and-desist letter in March 2025, ordering it to cease operations in Michigan. This casino isn’t licensed to operate in any US state and has been reported by US banks for making fraudulent transactions. We've also received reports from players about non-payments and poor customer support.

Why You Should Trust Us

Online casinos continually launch new promotions and bonuses, so staying on top of the best US online casino bonuses requires a dedicated team with years of experience. This is where our team steps in to lend a helping hand. Here is how we do it:

• The WSN team has over 40 experts from both the sports and casino industries.

• We reviewed more than 30 online casinos to bring you the best online casino bonuses.

• Our team spends at least 12 hours over the course of one week analyzing and claiming bonuses for each individual casino, or longer if necessary, to fully test the casino bonus.

• All our testing is based on first-hand experience. We don't rely on others' opinions; we test everything ourselves.

• Not sure about playing at a casino? We have the answer. WSN offers a detailed learning hub with over 40 guides and videos to teach you everything you need to know before you start claiming the best casino bonuses.

• WSN's Responsible Gambling Center features 10 articles and videos created by our responsible gambling experts to help you manage your spending and avoid common pitfalls.

• While we value and respect our experts' opinions, we also want to hear what our readers think. Feel free to reach out and let us know.

How We Rate

Our experts invest a minimum of 12 hours per week on each review, testing every feature a casino offers, including bonuses. We provide them with at least $1,000 to use during their evaluation, ensuring they test everything from payment methods to casino game software. We leave no stone unturned, and we grade everything using our BetEdge rating methodology.

Check out our rating process and BetEdge methodology.

Once a review is published, we spend at least 2 hours per month updating it to ensure it remains up to date. For our ‘best of’ pages, like our best online casino bonuses page, we spend at least 5 hours verifying every aspect of it and updating it accordingly. But that isn’t all! Twice a year, we do a full review of all casino operators and our ‘best of’ pages to ensure they continue to meet our high standards and provide you with the most accurate information.

Everything is done in accordance with our editorial principles. Learn more about WSN editorial principles.