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AUTHOR: mihaela · Updated: 8th Oct 2021

Best Online Casino Bonuses in the US

What are Online Casino Bonuses?

Online casino bonuses are a very big deal at US gambling sites. After all, there are lots of operators out there competing for your custom, and one way to grab the attention of new customers is to roll out welcome offers and other types of bonuses.

Of course, the very best casino sites also distinguish themselves in other ways, from providing a big range of online slot machines and table games to supporting a wide selection of banking methods. That said, there’s no denying that online casino bonuses can be the deciding factor when you’re choosing where to play casino games.

Sign-up bonus deals, which are for new customers only, tend to get a lot of attention. But both old and new casino sites also provide exclusive bonuses to reward returning customers for their loyalty, whether in the form of ongoing promotions or reload bonuses offered for subsequent deposits.

Types of Online Casino Bonuses Available in the US

The best online casino bonuses come in different shapes and sizes. Let’s take a closer look at how some of the most popular bonuses work.

Matched Deposits

With matched deposit offers, casinos will match a percentage of whatever you pay into your account, up to a maximum limit. Say a site has a 100% up to $750 match bonus on the table. Depositing $50 will therefore get you another $50 to play with. There will usually be a minimum deposit required to access the bonus, along with some other terms and conditions which we’ll look at more closely in a moment.

No Deposit Bonuses

Not all online casino bonuses require a first deposit. Some will be awarded to new customers simply for registering with the site. You may see a no deposit bonus advertised as ‘$25 free on sign up’, for example. While this kind of free play deal can certainly be appealing, remember to check T&Cs for playthrough requirements and other strings that may be attached.

Free Spins

Online slot machines are a huge draw for players, so it’s no wonder that online casino offers often include free spins bonuses. Simply put, these will let you play selected slots for real money prizes, without putting any of your own cash on the line. Free spins can be offered as a sign-up bonus, as well as being a regular feature of promos and reload bonuses.

Promo Codes

Gambling sites can allow you to unlock online casino bonuses in different ways. Sometimes, you’ll be given the bonus money or free spins automatically after you sign up or make the minimum qualifying first deposit. Alternatively, you may have to check a box, or input a special bonus code. These codes are usually distributed as part of an online casino’s marketing and advertising, but they may also be displayed on-site.

How to Claim an Online Casino Offer

Claiming online casino bonuses is a pretty straightforward process. Let’s break it down into steps.

  1. Compare bonus offers at casino sites
    We’ve made it easy to shop around for the best online casinos bonuses. You can check out our in-depth casino reviews right here, and see exactly what’s on offer in terms of free spins and bonus funds.
  2. Check the T&Cs
    Before actually signing up for a site you like the look of, check the fine print. It’s great to be offered a lot of free spins or a big bonus amount, but if the playthrough requirements are very high, or you have to be a high roller to qualify for the casino offers, then you may want to choose another casino.
  3. Sign up
    Ready to go ahead? Follow our link straight to the registration page. You’ll have to follow the step-by-step prompts and provide some personal details, and any ID verification documents the casino asks for. You may have to opt-in for the bonus by checking a box or typing in a bonus code.
  4. Claim your bonus
    If there’s a no deposit bonus, you should receive it at this point. Otherwise, you’ll have to make a first deposit. Navigate over to the cashier page, select your preferred payment method, and enter the deposit amount. Bear in mind some payment methods, like Skrill or PayPal, may render you ineligible for some welcome bonus offers.
  5. Play casino games
    Once the welcome bonus lands, you’ll be all set to play online slot machines, table games and live dealer games. Good luck!

Common Bonus T&Cs

No matter how lucrative they may seem, it’s important not to think of bonus offers as free money. Even the very best US online casino bonuses will almost certainly have some strings attached, which is why you should check for the following bonus terms.

Wagering Requirements

Wagering requirements, also known as playthrough requirements, often apply to both welcome offers and reload bonuses. They stipulate that you have to bet your bonus amount, or free spins winnings, a certain number of times before you can cash out any bonus-associated winnings as real money.

Say you’ve been awarded $10 with 20x wagering. This means you’ll have to bet $200 (20 x $10) before you’re eligible for the payout. In some cases, the wagering requirement will apply to the total of your deposit and bonus amount, which will make it more time-consuming and challenging to cash out your winnings. Using the above example, if the casino applies the playthrough requirements to both the deposit and bonus, you would need to wager $400 (20 x $20) before clearing them. You will also need to do this before the time limit expires, with casinos usually giving you 30 days to do so.

Game Weighting

Not all casino games will contribute the same amount to the wagering requirements. It’s often the case that most or all slots will contribute 100%, meaning that every bet you place on online slot machines will help you fulfil the wagering. On the other hand, table games may only contribute a small percentage. If, say, roulette contributes 20% and you bet $10, you’ll only be adding $2 to your wagering tally. If you’re aiming to clear the wagering requirements, it’s vital to find out the game weightings of the casino in question as table games and live dealer games will sometimes contribute nothing at all.

Time Limits

If you’re thinking of stashing your free spins or bonus funds to use at a later date, be careful. There are often time limits in place, meaning that the bonus will expire after a certain deadline. This may range from a day to a week to a month or more, so it’s important to confirm how much time you have.

Winning Caps

While the best online casino bonuses can certainly boost your bankroll, there may be winning caps that limit the amount of money you can win using, say, your free spins or match bonus pot. Nobody wants to feel the frustration of being told they can’t actually cash out a mammoth win because it’s exceeded the max win cap, so double check beforehand.

Game Exclusions

Some bonus offers are very flexible, and can be used for slots, table games and live dealer games alike. Others are more specific, and can only be used on certain categories of games. Free spins are often the most tailored bonuses of all, and are often only to be used on one or two slots. As ever, check the T&Cs to know for sure.

Popular Casino Games in the US

There’s a varied spread of casino games you can play using online casino bonuses. Here are the most popular types.


Playing slots is simple. You just set the reels spinning and wait to see if the symbols align in your favor. That said, there are thousands of sophisticated slot games available these days, many featuring rip-roaring bonus rounds with arcade-style gameplay, not to mention all kinds of added features like shape-shifting reels and expanding wilds.

Some games are known to players the world over – such as Starburst and Cleopatra. You can also enjoy TV and movie tie-in games like Baywatch and Bill and Ted’s Excellent Adventure, and more simple, retro-style titles that evoke the classic slot machines of Las Vegas, Nevada. New games are added all the time at top casinos, keeping things fresh for slot fans.

Table Games

Think ‘casino’ and the image of a spinning roulette wheel might well come to mind. So it’s no wonder that the top online casinos usually put on a great spread of table games, including roulette, blackjack, craps, and baccarat. There are all kinds of variations available, from classic takes like Premium Blackjack Bro and American Roulette, to games which shake up the gameplay and add extra possibilities to the mix.

A prime example of the latter is Blackjack Xchange, which adds in the ability to ‘buy’ or ‘sell’ cards in your hand. There’s also First Person Lightning Roulette, where sudden multipliers can potentially send your winnings skyrocketing. Many gambling sites also provide virtual versions of poker, including video poker titles like Jacks or Better or Ten Play Draw Poker. It’s worth keeping in mind that table games tend to be in shorter supply than slots at even the best online casinos, so be sure to research what’s available using our expert reviews to make sure your favourite games are featured.

Live Dealer

If you really want to simulate the feeling of being in a brick-and-mortar casino, live dealer games are for you. The action is streamed live from custom-designed studios, where professional dealers and croupiers work with real cards and real roulette wheels to provide an atmospheric gambling experience.

Games like blackjack and roulette are well-represented in the live dealer sections of top gambling sites. As with the virtual table games, there are some intriguing variations to try out. These include Infinite Blackjack, where unlimited players can take on the dealer, and Dream Catcher, with its huge money wheel and vibrant game show-style atmosphere.

Progressive Jackpots

Some games have progressive jackpots attached. This means that the prize pots get bigger and bigger as more people play, until a lucky winner scoops the often seven-figure jackpot. While some table games have progressive jackpots, it’s the jackpot slots that tend to get the most attention at casino sites.

Games in this category include Siberian Storm Mega Jackpots and Grand Spinn Superpot. You’ll often see live running tallies of how big the top prize is at any one time, making it easy to pick out the most potentially lucrative game. But, while big jackpot games may be very inviting, always remember that gambling should be considered a fun pastime and not as a way to make big bucks. Your odds of winning a progressive jackpot are similar to your odds of winning the lottery.

Sign Up, Claim, and Play

If all this has got you intrigued, you’re in the right place. You can browse our top ranked bonus offers, check out the impartial casino review for each site, then follow our links to sign up and claim your welcome offer.

Frequently Asked Questions

  • How do I know if an online casino offer is legit?

    Online casino bonuses can only be considered legit if they’re offered by casino sites that are licensed to operate in your state. At Gambling Deals, we only review and recommend sites that have the approval of the state’s gaming authority, which denotes a secure and fair playing experience. Any site in breach of their licensing requirements face heavy penalties, and users can expect a degree of legal and financial protection if something goes wrong at a licensed site.

  • What is the best kind of bonus for high rollers?

    While free play and no deposit bonus offers can provide a great way to try out new casino sites and games, they also tend to be on the small side. High rollers should look out for matched deposit offers, which can offer percentage matches up to as much as $1,000 or more.

  • Can I use a casino bonus on any game I want?

    This depends entirely on the bonus offer in question. Free spins can only be used on slots, for example. The bonus money you get from certain deposit offers may not be eligible for use on, say, live dealer games. Always read the T&Cs to be sure of how you can make use of your bonus funds.

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