Best Online Casino Bonuses and Welcome Offers 2025

There are as many types of bonuses out there as there are operators, plus these promotional offers change all the time. Depending on your specific gambling style and budget, one might be a better fit than another, so let's break down which bonuses are the best for each. 

The Golden Nugget brand has almost 80 years of experience in the gambling industry. That's why it’s no surprise that they offer one of the best welcome bonuses in the US. Michigan, New Jersey, Pennsylvania, and West Virginia players can all sink their teeth into this awesome reward. 

A deposit of $5 or more allows you to claim 250 casino spins. Plus, you'll receive 100% of all losses, covering up to $1,000. But it’s not just the bonus itself that makes the offer so generous — it’s the lenient terms and conditions. 

The $5 minimum deposit should suit most players who're on a budget. Plus, you’re looking at a 10x wagering requirement. This figure falls far below the industry average. In other words, you won’t have to jump through hoops to claim your winnings. 

Read our full review of the Golden Nugget online casino in Michigan for general details about this casino site.

🌟 Welcome Bonus: 100% cashback up to $1,000 + 250 casino spins

🌟 Number of Games: 1,000+

🌟 Mobile App:  iOS & Android

BetMGM Casino also stands out for its generous welcome bonus. New players receive $25 on the house, and they can claim a 100% deposit match that covers up to $1,500. 

To claim your reward, you'll simply register an account and complete the verification process. You must also enter the bonus code CASINOSCOM during the payment process. The bonus will then be credited to your account.

You won’t be able to withdraw your bonus winnings until you meet the wagering requirement. Luckily, this requirement is just 1x your no deposit bonus amount. This makes it pretty easy for you to obtain and enjoy your winnings.

Read our full review of the BetMGM online casino in Pennsylvania to get all the insights about this popular casino site.

🌟 Welcome Bonus: 100% up to $1,500 + $25 on the house

🌟 Number of Games: 1,000+

🌟 Mobile App:  iOS & Android

Caesars Palace is offering a 100% deposit match of up to $2,500. You qualify by making a deposit of $10 or more and entering the bonus code CASINOSCOM2500. Keep in mind that you only have seven days upon registration to compete the wagering requirements.  

Do you want to spice up your experience even more? Caesars Palace offers ongoing promotions that sweeten the pot and incentivize you to gamble. For example, wagering $25 will qualify you for 2,500 reward credits. 

Read our full review of Caesars Palace online casino in Pennsylvania to know all about the casino, its games, features, and bonuses.

🌟 Welcome Bonus: 100% up to $2,500

🌟 Number of Games: 1,000+

🌟 Mobile App:  iOS & Android

At FanDuel, you're invited to play endless slots and other games with a generous bonus upon signing up. You can also reap the benefits of various promotions, including guaranteed daily jackpots. 

All new players who register with FanDuel Casino and deposit $5 and play $1 will get $100. FanDuel will automatically apply bonus funds to your account within 72 hours.

The bonus is easy to claim, and you only have a 1x wagering requirement to meet. In other words, it shouldn’t be too tricky to withdraw your winnings. However, the bonus expires 7 days after receipt, so you'll need to hit the ground running. 

Read our full review of the Fanduel online casino in Michigan to know all the details about this top US brand.

🌟 Welcome Bonus: Play $1 and receive $100

🌟 Number of Games: 200+

🌟 Mobile App:  iOS & Android

Do you want to spin the reels of thrilling slot games without breaking the bank? If so, you’ll love Hard Rock Bet Casino’s awesome welcome bonus. It includes 500 free spins on top of a 100% deposit match of up to $1,000!

The minimum bet is $20 to qualify, and don't forget about the 20x wagering requirement. This will be easy to meet as there are loads of games to enjoy at Hard Rock Bet. That said, you also need to check which games are excluded from bonus play in the T&Cs.

Read our full review of the HardRock Bet Casino New Jersey to learn all the ins and outs of this major casino brand.

🌟 Welcome Bonus: 100% up to $1,000 + 500 free spins

🌟 Number of Games: 2,500+

🌟 Mobile App:  iOS & Android

Online casinos are only legal in six US states: New Jersey, Pennsylvania, Delaware, West Virginia, Michigan, and Connecticut. While you don’t have to be a resident there, you must be located in the state when playing. Geolocation software will determine if you are, whichever device you're on. Any play outside these states is illegal, other than sweepstakes-style casinos. 

Once you’re in a legal US state, you can take advantage of bonus offers. To get the best online casino deals and the most out of your experience, we recommend that you browse through the sites that are available in regulated states so that you can get an overview of the offers available.

Here is a more detailed rundown of where you can play legally and find casino welcome bonuses in the US.

New Jersey

When it comes to a spread of legal gambling options, New Jersey is perhaps king of them all. It was the first state to legalize online casinos (in 2013), it pioneered the repeal of the Professional and Amateur Sports Protection Act (PASPA), and has more active online casino operators than any other state. There are around 30 NJ casinos online, plus poker operators, offering a mind-boggling amount of choices for every player.

Pennsylvania

Pennsylvania is frequently hot on New Jersey’s tail, as it was also an early adopter and produces staggering revenue numbers. The active list of PA online casinos is also quite long. Plus, companies are still acquiring licenses in PA, so there are new launches sporadically.

Michigan

In addition to being very gambling-friendly, Michigan has the benefit of location. Whereas other legal US online casino states are more clustered together, bordering each other and fighting for players crossing state lines, Michigan isn’t a quick drive to a competitor state. It gets the benefit of visitors traveling there solely to gamble. The list of Michigan online casinos is at around 20 operators, so it’s on par with Pennsylvania.

West Virginia

West Virginia may not be as metropolitan as the other three mentioned above, but it’s an online casino powerhouse that secured quite a few A-list brands – all partnered with retail casinos – plus legal online poker. The West Virginia online casinos list features more than a dozen operators.

Connecticut

Think of Connecticut online casino offerings as boutique. The state lacks a few of the major players – BetMGM and Caesars are not active – but the two live CT online casinos are decent. Two area tribes each partnered with a gambling powerhouse, which was a smart move. Mohegan Sun Online Casino is powered by FanDuel Casino and DraftKings Casino in Connecticut is via a partnership with Foxwoods Resort Casino, which is owned by the Mashantucket Pequot Tribal Nation.

Delaware

Delaware is a small state with a big amount of legal gambling options. But when it comes to online casinos in Delaware, it is the only state where the online casinos are overseen by the state Lottery (in partnership with 888), so options are more limited. This unique set up means that only 888 affiliated partners are allowed, each paired with one of the three racinos in the state. However, the state does also boast legal online poker.

Online casino bonuses are an incentive for players to sign up and keep betting. When bonus offers can boost your bankroll without driving to a land-based casino, it's more of a reason to wager online and play real money slots.

Casinos also use bonuses to get a leg up on the competition. Some operators undercut playthrough and deposit requirements to generate loyal users. Others go all in on a flashy welcome bonus to attract new players. At the end of the day, everyone wants to turn a profit. If an online casino offers bonuses with a fair house edge and wager requirements, it's a win-win.

Most casino bonuses are calculated based on a percentage of your initial deposit. This number typically ranges from 50-200%. This is the portion of the deposit amount you are eligible to receive as bonus cash. The bonus is usually capped at a certain amount, you’ll see 1,000 dollars often being the max amount for a bonus offer. 

Say you’re making a deposit of 1,000 and get a bonus of 100%. You then have a total of 2,000 in your player account. The bonus works just like regular cash, but of course, come with terms and conditions that could be of great importance. I’ve therefore broken down the things you want to check out before you make use of a bonus offer.

Once you find a casino bonus that fits your preferences, here is how to take advantage of the offer:

1. Review the T&C – Pay attention to the bonus terms and conditions. Check out the wagering requirements, minimum deposit, eligible games and payment methods and the expiry date.
2. Create an account - You will be required to fill out the registration form with information like name, age, address, phone number and such. This usually only takes a couple of minutes.
3. Make a deposit – Go to the sites cashier and make the required deposit to claim the offer, or more if you wish. If you’ve found one that doesn’t require a deposit, the bonus should already be in your account.

Most bonus offers come with wagering requirements, also called playthrough requirements. These conditions dictate the number of times you have to bet a bonus before you can withdraw funds. Wagering requirements are generally between 30 and 50, depending on the site and bonus type.

For example, let's say you get 100% of your first deposit up to $1,000. This bonus carries a 30x wagering requirement. You have to bet $1,000 x 30 ($30,000) to withdraw cashable bonuses. In short, look out for offers with the lowest wagering requirements!

How to Beat Wagering Requirements:

• Choose casino bonuses with a low playthrough
• Play games with high contribution rates
• Boost cash funds early with high volatility games
• Stabilize bankroll with low volatility slots

There's no shortage of ways to win more than you wager. Discover the best casino bonuses for every type of player.

An online casino welcome bonus is applied to your very first deposit at most gambling sites. A common version is a bonus that doubles your first deposit amount, with or without additional free spins in selected games. A lot of these offers are similar but throw an eye on the terms & conditions as they tend to vary more.

Online casinos with free signup bonus are ideal if you want to try out a new site without having to spend a cent. These bonuses are typically smaller than any casino deposit bonus and come with attached T&Cs like all other offers, but they’re completely free, and you even have a chance to win with it.

The latest casino bonuses and free spins are often found on the “Promotions”-page at any given casino, so keep an eye out there as you won’t necessarily find it all in your inbox. Some of the most typical offers you’ll find are:

Reload Bonuses

A reload bonus usually follows the initial welcome bonus. It essentially acts as a deposit bonus for existing players. It’s definitely nice to have if you play often. Most reload bonuses match 25-50% of a deposit up to a certain amount. Some are only rewarded for specific payment methods. If you’re interested in reload bonuses, you're in luck as most casinos listed here offer them!

Cashback Bonuses

Cashback bonuses are usually offered after you’ve played for at least a week at sites that offer them. Bonus terms always vary, but a rule of thumb is that you have to play for a certain amount one week to receive a percentage of your losses back the following week.

High Roller Bonuses

Players sporting heftier bankrolls will gain access to high roller casino bonuses through VIP-programs. These bonus offers tend to be more generous and sometimes with considerably lower wagering requirements. There are usually 5 VIP levels that offer a bigger slice of the action as you progress.

Mobile Casino Bonus

Sometimes you’ll find offers specifically for mobile use, although most online casino bonuses are available on all devices. Mobile casinos may not offer all the games you want, but you can place bets and cash in chips on the go without missing a beat. There are also casino apps by various operators that can make things easier if you log in frequently.