Best Online Casino Bonus Offers & Promotions At The Top US Casinos

DraftKings Casino reigns supreme in offering the highest welcome bonus in the United States. Players can claim a 100% deposit match up to $2,000 when adding funds to a new DraftKings account. They sweeten the deal with a $50 site credit to top up your bankroll with a little extra walking around money. Simply click the green "pick here" button and follow the registration instructions to get your hands on the bonus funds.

Casino Bonuses With the Least Playthrough

Few online casinos offer bonuses and promotions with no wager requirements, since this would essentially be giving away free cash. The sweet spot is a casino bonus with a high return and a low playthrough. FanDuel Casino will refund up to $1,000 on wagers lost in the first 24 hours. Players only have to bet the first deposit one time to qualify for this safety net. You will be hard-pressed to find a 1x playthrough for this amount anywhere else. Casino bonuses with wagering requirements of 10x or less are still reasonably competitive. 

Gambling Site Bonuses With the Most Deposit Match

Deposit matches are the biggest online casino bonus available to new users. Bonus money up for grabs will usually fall between $500 and $1,500. DraftKings Casino leads the pack with a $2,000 deposit match bonus that has a relatively low 20x wager requirement. You would have to wager this amount at least 60x in Europe or the United Kingdom. Golden Nugget Casino and BetMGM Casino offer a 100% deposit match up to $1,000. However, Golden Nugget has fewer wager requirements and 200 free spins compared to an extra $100 in Freeplay from BetMGM.

Online Casinos Bonuses That Have the Most Free Spins

Free spins let you wager on slots with bonus money that can turn into cold hard cash. Welcome offers with a deposit bonus will generally offer the most free spins. These can either be no deposit spins or free spins with wagering requirements. Several online casinos welcome new users with 100 bonus spins, including Unibet and Caesars. 

Most casino bonuses are calculated based on a percentage of the initial deposit. This number is referred to as a bonus percentage and typically ranges from 50-200%. This is the portion of the deposit amount you are eligible to receive as bonus cash. The second number that follows the words "up to" represents the maximum amount a casino will issue in bonus funds for real money deposits or wagers.

Activating Casino Promotions

Activating online casino bonuses will vary based on the type of promotional offer you select. A welcome bonus brings new players to the table with free spins and bonus funds to reduce the upfront risk of getting in on the action. Players can activate a welcome bonus when signing up for a new online casino account. For example, Caesars Online Casino has a promo code for new users to get a deposit bonus of up to $200 – plus $10 just for signing up.

Existing players are rewarded with online casino bonuses for referrals, bankroll reloads, loyalty, and betting on specific casino games. The best casino apps have loyalty programs open to all players, not just high rollers. BetMGM Casino automatically enrolls new users in the MGM Rewards Program to earn credits with every wager. Casino bonuses for referrals, reloads, and real money games often have bonus codes to activate the offer. These codes are listed in the online casino promotions section.

Bonus Code

Online casino promotions sometimes require a bonus code. Players can get these codes from the online casino website or one of their partners. When you make a deposit or play real money games, there is usually a box to type the code in. Once the code is entered, the bonus is activated. The best casino bonus codes have clear instructions to make sure you never miss a chance to boost your bets.

Not all casino bonuses require a code. Some welcome bonus offers and regular promotions can be activated by clicking a "play now" button on the casino website. FanDuel uses a "play now" button to register new players for a sign-up bonus of up to $1,000 in Play It Again credits. Unibet Live Casino Boosters can also be activated using a button instead of a bonus code.

Check the Bonus Expiration

Like most good things in life, casino bonuses don't last forever. You have to bet your bonus funds or use your free spins before they expire. The average timeline to use an online casino bonus is between 7 and 30 days. You will lose the bonus value and any associated winning amounts if you don't meet the play requirements before the expiration date.

Online casinos run promotions for limited periods to keep bonus offers fresh and bets rolling in. Ocean Online Casino welcomes new users with a deposit bonus up to $1,500 and 50 free spins that must be wagered within 7 days. WynnBET offers a weekly 25% deposit match bonus up to $100 every Wednesday that is only valid for 24 hours. Always check bonus expiry dates before you wager to avoid losing any more to the house than you have to.

Understand the Terms

Before the chips are on the table, you'll want to double-check the fine print of online casino bonuses. Licensed online casinos will always have rules that limit what you can and can't do with your free spins and bonus funds. While the rules are fairly similar across operators, some differences make certain bonus types better than others.

The terms and conditions will tell you the bonus requirements for deposits, wagers, playthroughs, time limits, and game restrictions. Most bonus offers will exclude live casino games. Other conditions will usually restrict the use of more than one bonus at a time. However, the top online casinos will offer multiple bonuses and promotions to use one after another.

After using the Hard Rock Casino welcome bonus, players can get free spins on select slot games. BetRivers has daily slot tournaments to win $50 in bonus money. Wagers of $50 or more on BetMGM casino games will earn a $10 bonus bet on your favorite MLB team when using the BetMGM sports betting site.

Wagering Requirements

Online casinos aren't in the business of handing out free money without a few caveats. 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 operator and bonus type.

For example, let's say an online casino will match 100% of your first deposit up to $1,000. This welcome bonus carries a 30x wagering requirement. You have to bet $1,000 x 30 ($30,000) to withdraw cashable bonuses. 

The best casino bonuses have the lowest wagering requirements. FanDuel offers new users a refund bonus with a 1x playthrough. Get up to $1,000 back if you're down after your first day. A site credit for net losses will be applied to your FanDuel Casino account within 72 hours of the bonus period end date. 

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 online slots

Online casino games contribute different amounts to playthrough requirements. Slots and video poker will usually contribute 100%. While table games only contribute a small percentage. Below you will find a table with average game contribution rates for real money games at one online casino.

If you bet $10 on slots, it will count as $10 towards the wagering requirements. The same bet on Roulette will only count as $2. The game contribution rates vary among online casinos and the return to player (RTP). RTP is the rate a game pays out to players. Look for casino bonuses you can use on games with a high RTP (which are usually slots).

Not all games count towards wagering requirements. Most casinos have pre-selected or excluded games for bonus offers. Table games and video poker are generally off-limits or contribute less to playthrough requirements. Some casinos restrict online slots with progressive jackpots because of their high RTP. Free spins can also be limited to a single slot game (usually a popular one) with set stakes that can make for some pretty small payouts.

If you lean towards a particular game, look for bonuses that favor that game. This way, you won't struggle with figuring out which casino games you can play using bonus cash. BetMGM slots, jackpot slots, scratch games, fixed odds games, and virtual games contribute 100% to playthrough requirements. Unibet, BetRivers, and Bet365 offer game-specific casino bonuses for roulette, trivia, and bingo.

Winning Caps

Some online casinos limit the amount of money players can win with bonuses. These caps are used to protect the casino's cash flow and comply with online gambling regulations. Free spins and no deposit bonus offers are the most common promotions to have cashout limits. We have seen a handful of no deposit bonuses with a $500 max cash out. Winnings from free spins are usually credited as a casino bonus with a wagering requirement.

Withdrawing funds can also have some restrictions. Online casinos can have daily, weekly, and monthly withdrawal limits. Player status and banking methods will also determine how much money you can withdraw at one time. Some casinos will let you withdraw up to $100,000 per transaction (original bonus excluded). You can occasionally bypass restrictions if you cash out in person. It's really worth getting familiar with bonus types and rules to get the most out of every wager.

Restricted Payment Methods

The terms and conditions will indicate if a payment method is restricted from the applicable bonus. Casino bonuses must be used to wager on games before making a withdrawal. Attempting to withdraw only bonus funds without meeting the wager requirements will result in losing all of the cash funds associated with the bonus offer.

Banks will sometimes decline deposits and withdrawals from real money gaming sites. E-wallets like PayPal tend to have better success rates. Pre-paid cards are another alternative payment method accepted by multiple online casinos (e.g., Play+). High rollers may need to cash out using ACH or a casino cage because of the higher limits.

Minimum Deposit Offers

Players will need to make a minimum deposit to qualify for casino bonuses. The amount required is determined by the operator and bonus type. The average min deposit is between $5 and $30 (excluding no deposit bonuses). There are higher deposit requirements for welcome bonuses. Ocean Online Casino requires new players to deposit a minimum of $50 to claim up to $1,500 in bonuses and 50 free spins.

Maximum Deposit Offers

Maximum deposits refer to the total bonus amount available. For example, Caesars Online Casino offers new users a 200% deposit match bonus up to $100. A deposit of $100 will earn you an extra $100 ($200 total). If you deposit $200, you will still only receive $100 since that's the max bonus amount. The best welcome bonuses will match 100% of an initial deposit of $1,000-$2,000.

To help you get an overview of the offers available here's a list of the top US online casino bonuses available now:

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

New User Welcome Bonuses

Online gambling sites use a welcome bonus to lure new users to the casino floor—or virtual lobby, in this case. The best welcome bonuses include free spins or a deposit match (sometimes both). If you want to go big on your first deposit, check out DraftKings and BetMGM. FanDuel offers bet insurance up to $1,000. Ocean Online Casino rewards rookies with a 100% match on the first deposit up to $500, a 50% match on the second and third deposits up to $1,000, and 50 free spins.

No Deposit Bonuses

No deposit bonuses are the gold standard of online casino promotions. New players get free money without an upfront cash deposit. Pala Casino, Virgin Casino, and Scores Casino have $25 no deposit bonuses. Hard Rock Casino divvies out its no deposit bonus in 50 free spins after registration is complete.

Mobile Casino Bonus

Get the bells and whistles of a casino floor right in the palm of your hand. Most online casino bonuses are available on desktop and mobile apps. Players can still access the best welcome bonuses, free spins, and ongoing promotions on iPhone and Android 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. The majority of major operators offer mobile casino apps, including BetMGM, FanDuel, and Caesars.

Free Spin Bonuses

Free spins are the easiest casino bonus for newcomers, seasoned pros, and every player in between. Players will receive a set number of free spins to use on selected online slot apps. You get to keep any money you win so long as you meet the wagering requirements. Golden Nugget Online Casino offers 200 free spins with a 1x playthrough when you sign up for a new account. Trailing right behind is Unibet with 100 free spins, no deposit required. Even with a few post-win wager targets, these deals are a great way to build your bankroll with less risk.

Reload Bonuses

A reload bonus usually follows the initial welcome bonus. It essentially acts as a deposit match bonus for existing players. Most reload bonuses match 25-50% of a deposit up to a certain amount. Some are only rewarded for specific payment methods. Unibet Casino helps soften the blow of a bad beat with 25% reload bonuses every Thursday, up to a maximum of $50. FanDuel Casino is another go-to when your bankroll gets thin, offering $10 when you deposit $100 or more on Mondays.

Cashback Bonuses

Cashback bonuses are one the best casino bonus offers for new players. They operate the same way as risk-free bets on sports betting sites. This promo pads your plays with a little insurance just in case you don't get lucky. For instance, let's say you wager $100 on a poker game. The online casino will give you a portion or all of your cash back if the wager loses. FanDuel Casino will issue a full refund on bets up to $1,000 if your bankroll takes a hit on the first day.

High Roller Bonuses

Players sporting hefty bankrolls will gain access to high roller casino bonuses. These bonus offers are reserved for big money games and the top tiers of online casino loyalty programs. BetMGM is king when it comes to VIP treatment. MGM Rewards offer 5 levels that offer a bigger slice of the action as you progress. High rollers can unlock the invite-only tier that offers bonus bets, cash prizes and exclusive tournaments. MGM Rewards can also be redeemed for hotel stays, room upgrades, concerts, and dining experiences at more than 20 luxury MGM Resorts.

Refer-a-Friend Bonus

Most casinos have at least one referral bonus. Players will receive a referral code after registering for an online casino account. If a friend signs up using your referral code, you can both collect a bonus. Refer friends to FanDuel or DraftKings and rack up $100 in bonus bets for you and your buddies. Earn $50 for each friend you refer to BetMGM Casino (up to 20 per month) or collect up to $1,000 on poker referrals, plus $75 in Tournament Play. Ocean Online Casino only offers $10 for each referral, but there are no limits on invites or using this bonus with other daily promotions (unless stated in the terms and conditions).

Software-Specific Bonuses

Some casino bonuses are specific to software developers. Sites powered by NetEnt, Evolution, and Micrograming offer the most popular casino games. NetEnt is responsible for some of the biggest video slots on the market, like TXS Hold'em and Jacks or Better. With over 1,000 game titles, Microgaming ranks high in jackpot slots and poker networks. Evolution Gaming is best known for live dealer games, including Infinite Blackjack and Caribbean Stud Poker. Online casinos often run software-specific bonuses for welcome offers, bank reloads, free spins, and cash back.

The best online casinos have regular promotions to keep players coming back for more. Monthly bonuses are generally offered on a player's first deposit in a given month. Ongoing promotions will fall into the main bonus types: deposit bonus, free spins, and loyalty rewards. Seasonable bonuses are released around major holidays throughout the year.

Sweepstakes casinos operate on virtual cash and gold coins used to play slots, table games, and poker. These online casinos are great if you want to feel like you have a stake in the game without betting real money. There are also plenty of generous sweepstake casino bonuses for free spins and coins. The Chumba Casino sign-up bonus gets new players 2,000,000 gold coins and 2 sweeps coins for free to use on any game. LuckyLand Slots issues 7,777 gold coins and 10 sweeps coins to new casino accounts. Both operators also offer a login bonus, social media giveaways, and slot tournaments for progressive jackpot prizes.

First and foremost, the online casino wagering your hard-earned money must be legal and licensed to operate in the state where you're placing bets. Once the licensing checks out, you can look at available bonus types. For the most part, you will need to invest some real money to qualify or cash in a bonus offer. Choosing the best online casino bonus will depend on your wager style, betting experience, and bankroll limits. 

How to choose the best casino bonus:

• Amount - Find bonus offers that stretch your bankroll with a deposit match, free spins, or cash back.
• Requirements - Look for bonuses with low (or no) conditions for deposits, wagers, and playthroughs. 
• Limits - Compare the max bonus payout with playthrough requirements to calculate the bonus value. 
• Games - Choose bonuses that you can use on casino games with a high RTP and contribution rate. 
• Expiration - Make sure you can fulfill the requirements before your bonus expires. 

No deposit bonuses are great for test-driving multiple online casinos. Although, you might be able to get some extra mileage out of a loyalty program if you place regular bets with one online casino. For a bonus to be truly beneficial, the terms and conditions shouldn't make it impossible to win. Avoid online casinos that sound too good to be true or have complex terms and conditions.

Online casino bonus red flags:

• Unwarranted loss or confiscation of bonus funds
• Unresponsive or poor customer service
• Slow site speed and payment processing
• Insufficient network security for banking 
• Challenging requirements to claim and receive bonuses

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 reason to wager real money online. 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.

Once you find the best casino bonuses, it's time to take advantage of the offer. Here is a step-by-step guide on how to claim a casino bonus.

Step 1 - Review the terms

Review the casino bonus terms and conditions. Pay attention to the playthroughs, min deposit, game selection, payout amount, and time limits.

Step 2 - Create an account

Sign up for an online casino using a bonus code or "play now" button. You will be asked to fill out the registration form with the following information.

• Identification: Name, Age, SSN
• Contact: Phone Number, Email Address
• Location: Address, City, State
• Bonus Code

Step 3 - Make a deposit

Deposit funds into your casino account to claim the bonus. If you selected a no deposit bonus or free spins, the money should already be in your account.

Step 4 - Bet your bonus

Place wagers with eligible games that qualify for the bonus. Slots generally contribute 100% to wagering requirements.

Step 5 - Withdraw bonus funds

Clear the bonus requirements to cash out your winnings. Payout times will vary based on the online casino and banking method.

Are online casino bonuses worth it?

New players can benefit from online casino bonuses that lower the risk of betting on games. These are welcome bonuses that offer a deposit match, free spins, or money upfront. Frequent players can maximize bonus funds with a reload bonus, cash back, and loyalty rewards.

Should I accept free spin bonuses?

You are not required to accept any casino bonus. However, free spin bonuses let you play online slots without spending money. This bonus is a great way to get in on the action with minimal upfront risk.

What are playthrough requirements?

A playthrough requirement is the number of times you must bet a bonus before you are able to withdraw the money (e.g., 40x). Not all games contribute to playthrough requirements. These details will be listed in the bonus terms and conditions.

Can I claim a bonus on a mobile?

Players can claim online casino bonuses using desktop and mobile devices. These can include deposit bonuses, free spins, cash back, referral codes, and more. Sometimes, you can claim exclusive casino bonuses for mobile apps.

Do returning players get bonus offers?

Returning players are the bread and butter of online casinos. Reload bonuses reward bankroll deposits. Cashback bonuses can ease the sting of a losing streak. Loyalty rewards offer additional perks like faster payouts, free spins, and cash prizes.

Are the biggest bonuses the best?

Bonus amounts are tied directly to your bankroll. If you have money to throw around, bigger bonuses might offer a better return. If your bankroll is light, look for a deposit match bonus with minimal playthrough requirements. The goal is to find a casino bonus that makes every wager count.

What is the best online casino bonus for US players?

You can find the best online casino bonuses here at TopUSCasinos.com. We recommend reviewing the casino promotions to see if they offer what you're looking for. A good casino bonus will suit your betting style and frequency, and work with your preferred game.

How long does it take to receive a casino bonus offer?

Deposit match bonuses and reload bonuses will usually be credited to your casino account right away. Other offers, like free spins and no deposit bonuses, may require you to place wagers before you receive the bonus amount.

Can I withdraw a casino bonus?

Cashout rules will depend entirely on the operator and the type of bonus you are cashing in. Most casinos require a certain amount of real money and wagers before you can withdraw a bonus. Getting familiar with bonus types and requirements will give you an edge on betting strategies.

What are online casino bonus codes?

Online casino bonus codes are a series of letters or numbers (sometimes both) that grants access to special offers. Players will enter a bonus code when signing up for a new account or activating a promotion on an existing account.

Are there no deposit casino bonuses?

No deposit bonuses are rare, but they do exist. New players can use this free bonus to win real money without spending a cent. These bonus types usually have wagering requirements and limits on the max bonus you can win.

Contributors

Candice Reeves

Expert Reviewer

Candice Reeves is an expert reviewer for OntarioBets.com. Candice built a writing career in wealth management, cryptocurrency, and software applications. Her work is routinely featured in leading finance and technology publications, including WealthRocket.com, CryptoVantage.com, and StackCompare.com.