Online Casinos USA - Best Legal Casinos in May 2021

In 2021, the American online casino scene is as vibrant as its ever been. Each online casino site has something unique to offer - in this guide, we'll dig deep on how you can enhance your gambling experience by playing at the best US online casinos.

We found 7 bonuses worth $22

BonusFinder helps you to find the best legal online casinos in 2020

  • Which online casinos are legal in the US and are to be trusted?
  • Which casinos have your preferred payment methods?
  • We review and rate only the best online casinos in the USA

Online Gambling USA: Top Online Casinos USA May 2021

On this site, you’ll find the best legal online casinos for USA players. From state to state, different real money American casinos are better than others. For example, some have better bonuses, while others are best suited for mobile users. Below, we’ve listed the top legal online casinos for US players 2021.

Category Casino Provider
Best Mobile Casino Caesar’s Online Casino (NJ)
Best Online Casino for Bonuses 888 Casino
Best New Casino Unibet (NJ, PA)
Most Anticipated Online Casino DraftKings Online Casino
Best American Online Casino Website For Slots Golden Nugget Online Casino
Best US Online Casino for Real Money Gambling 2020 888 Casino
Best No Deposit Casino Hard Rock Online Casino
best online casino bonuses us

888Casino is one of the best overall online casinos in America. Exhibit A: They offer a $2,000 welcome bonus.

Casino Reviews: Choosing The Best American Casino

There are numerous factors that gamers should consider when picking safe online gambling sites in America. However, this task can be tough to do on your own, so we here at BonusFinder have made it easy for you. Every online casino we list is licensed and regulated by government authorities, like the New Jersey Division of Gaming Enforcement. In addition, We also have our own vetting process that whittles down the field further.

Any casino listed here must:

  • Be licensed by a state gaming authority, like the NJDGE or, Pennsylvania Gaming Control Board
  • Offer fair games and promote responsible gambling
  • Offer slots that offer a high payout percentage
  • Have transparent and clear bonus terms
  • Offer relatively quick withdrawal time frames
  • Support iOS and Android mobile devices
  • Offer instantaneous deposits via credit cards, PayPal, bank wires, etc

Online Casinos in the US by Category

When it comes to online gambling, many of us have niche interests. Consequently, we offer detailed lists of American online casinos in three distinct categories – casino bonus, free spins, and legal sports betting. These sections make it easier for players like yourself to get the most out of your gaming experience.

  • Best US Casino Bonuses

        BonusFinder lists legal American online casinos that offer the best bonuses. These include ongoing promotions as well as welcome offers. These deals change often, so check this site and New USA No Deposit Casinos 2021 page..

  • Top US Free Spin Casinos

         Online slot fans covet free spins, as they give them the chance to win untold sums of money. However, at this moment, American online casinos mostly hand out free cash instead of free spins. Convert them to free spins, and you can play 100 or 200 free spins – no deposit! You can find the offers easiest on our free spins page.

  • Best US Casinos For Online Betting

         Online sports betting is the most widespread form of gaming in America today. While casino gaming mostly remains confined to New Jersey, Pennsylvania, West Virginia, and Delaware, online betting is legal in states like Indiana, Illinois, and Colorado. Many of these states have a mix of homegrown and international players, so the market is competitive in many states.

New Online Casino US

If you’re a gaming enthusiast, there’s a good chance you’ve played at all the best American online casinos already. Fortunately, several new gaming sites have recently popped up in the US online casino scene. Eager to make a name for themselves, these sites often offer lucrative bonuses. As such, we strongly encourage you to check them out, so you won’t miss the best offers.

Hottest New Online Casinos in America:

  1. Unibet (NJ, PA)
  2. 888 Casino
  3. Mohegan Sun Online

2021 has been a banner year for online casinos in America. In addition to hot new casinos like Unibet, established players like Golden Nugget Online Casino and Resorts Online Casino have also done well. 888Casino, a mainstay of online gambling in Europe, has also drawn in plenty of gamers.

Why is this? Firstly, Golden Nugget Online Casino has the greatest selection of slots in America, with almost 600 titles to choose from. Secondly, this online casino and others also make it easy for players to game on their mobile devices. Their sites display well on both Android or iOS phones/tablets. As a result, gamers can play while on the go.

Mobile Casino Apps

It’s 2021. Consequently, most American online casinos offer mobile functionality to their players. Many sites have mobile apps, but even those that don’t are designed to work in mobile browsers. All websites we recommend work on both iOS and Android devices, as well as on rare ones like Blackberry and Windows Phone.

Mobile-friendly casinos can be found in America, so they offer functionality to all devices. If your phone can run a modern web browser like Google Chrome, you can play online casino games in America. Most online casinos offer mobile apps, but when a particular site doesn’t, their game software will work in your mobile browser just fine.

Most online casinos offer the same number of slots and casino games on mobile. They often have the same graphics, but with features that make gaming on a mobile device a breeze.

Fastest Paying Online Casinos

So, you just won a massive jackpot – awesome! So, how long will it take to withdraw your winnings? With loadable cards like Play+, you could have your cash in hours rather than days. In other words, you could have your money nearly instantly.

How can you gain access to these rapid withdrawals? Firstly, start by depositing at a well-known fast-paying American online casino. Secondly, register your Play+ card. Finally, when you want to withdraw, select Play+ (or your online casino’s branded card).

When you receive your funds hours later, use them as places that accept Discover. Alternatively, you can withdraw cash from your card at any ATM on the PULSE or NYCE network. Below, we list casinos that offer withdrawal via Play+:

Casino Provider Payout Time Bonus Offer
Golden Nugget Online Casino 3-24 hours+ 100% up to $1000
Mohegan Sun Online Casino 3-24 hours+ 100% up to $1000
BetMGM 3-24 hours+ 100% up to $1,000 in FreePlay
Borgata Online Casino 3-24 hours+ 100% up to $600 in bonus cash
Pala Casino 3-24 hours+ $25 no-deposit bonus on registration, 100% up to $500 bonus cash on deposit
Unibet 3-24 hours+ $10 no-deposit bonus on registration, 100% up to $500 bonus cash on deposit

According to our tests, new players are more heavily scrutinized. Consequently, expect to wait longer for funds on your first withdrawals. As time goes by, though, you should have your funds much faster, within the same working day.

Best Online Casino USA

Golden Nugget Online Casino USA Real Money site bonus: 200 free spins and a $1,000 welcome bonus.

Minimum Deposit Online Casinos

You don’t need to make a substantial first deposit to play for real money. For instance, sites like 888Casino and PartyCasino allow players to play for as little as $10. With a bit of luck, it’s possible to hit paydirt from this tiny amount.

Deposit Limit Casino Provider Welcome Offer
$10 minimum 888Casino 120% up to $500 on first deposit
$10 minimum PartyCasino 100% up to $500 over first three deposits
$10 minimum Caesar’s Online Casino 100% match up to $1,000 in bonus cash
$10 minimum BetRivers 100% match up to $250 in bonus cash
$10 minimum Sugarhouse 100% up to $250 in bonus cash
$10 minimum bet365 100% up to $100 in bet credits

Types of Online Bonuses

Almost every casino in Vegas tosses out comps to keep their players happy. Similarly, the best American online casinos are no different. Here are the most common bonuses you’ll encounter at top US online casinos:

  • No-Deposit Free Money

         In markets like NJ, competition is cutthroat. To attract players, NJ online casinos will offer bonuses if you sign up for an account. These are called no-deposit bonuses. While small, getting any amount of cash for free is amazing. The winnings are in most cases paid in site credits you can use to win real money.

  • Deposit Bonuses

         This bonus is the most common online casino offer. In return for depositing, American online casinos will match your sum up to a set amount. For instance, a 100% up to $500 would give you a total of $400 if you deposit $200. If you’re after big money, providers like 888Casino offer thousands in bonus cash through their offers.

  • Cashback

         Cashback is a loyalty scheme that pays you back a percentage of your wagers or net losses. For example, 10% cashback on monthly net losses of $500 would get you $50.

  • Reload Bonuses

         Sometimes, US online casinos will dangle these deals when you lose your bankroll. Often, they reserve this arrangement for VIP members. But, sometimes, they’ll offer them as part of an ongoing promotion.

  • Free Spins

         A popular bonus offer elsewhere in the world, free spins have yet to catch on in America. In time, though, we are confident they will make their debut here. Free spins are exactly what they sound like – they are spins on slot games that cost the player nothing. Money won can be awarded as bonus cash (with wagering requirements attached) or real cash (withdrawable.)

US Online Casino Bonuses Made Simple

On this page, we only list US online gambling comps that offer real money games. Don’t concern yourself with trying to decipher the terms & conditions of each promo. We’ll explain their wagering requirements in plain English in our casino bonus section.

Remember: every American online casino promotion comes with a bit of a catch. Wagering requirements are only the start – expiry dates and other conditions also apply. Wagering requirements also vary from site-to-site. Some sites impose 10x requirements, others 5x, and some only require you to bet through bonus funds once. At any rate, we’ve done the heavy lifting for you. In our online casino reviews, we cover every important aspect of every welcome offer.

Best USA Real MoneyOnline Slot Machines

The best American online casinos are always adding new slot games. Consequently, you’ll find legendary games that emphasize entertainment AND the potential for big wins. To make the most of your time, claim one of the massive bonuses listed above. Then, use your bonus cash on the games we’ve listed below.

We’ve selected these games because they offer profitable bonus rounds, big coin wins, and a high win percentage overall.

So, with no further adieu, here are the top five real money slot titles in America:

  1. Starburst

            A space-themed slot by NetEnt. Its simple yet sharp graphics/sound will grow on you. Watch out for the expanding wilds, which expand to take up a whole reel! Starburst is also globally the #1 played online slot machine.

  2. Da Vinci Diamonds

           A main stay in most Las Vegas casinos and tribal casinos around the country, Da Vinci Diamonds is available online, too. With a bit of luck, you can line up the diamonds and line your pockets.

  3. Irish Riches

            If you dream of winning life-changing money, give Irish Riches a spin. With an average jackpot of over $700,000, it has made the day of countless players over the years. You’ll find Irish Riches exclusively on 888 Casino.

  4. Anchorman: The Legend of Ron Burgundy

            Branded slots are big in American online casinos, just like they are in brick & mortar casinos. Anchorman, a favorite among NJ & PA gamers, shows you scenes from the movie when you hit various spins!

  5. Zeus: God of Thunder

            Sometimes, you’ve just got to go with a classic franchise. Zeus: God of Thunder is the latest title in a Greek-themed slot adventure that delivers frequent big coin wins.

  6. Divine Fortune

    One of the best progressive slots available in the US. The progressive jackpot in Divine Fortune can reach hunderds of thousands before someone hits it. Most likely the best US game for real big wins.

top us online slots

Golden Nugget Casino Real Money Bonus: $1000 deposit bonus for their whopping 660 slots.

By opting for titles like Starburst, you’ll enjoy frequent wins, fun themes, and the opportunity to win BIG bonuses/jackpots.

Best Games for Real Money at US Online Casino

If you’ve gambled at real-world casinos before, you’ll be pleased by what American online casinos have to offer. The selection is excellent, the odds of winning are high, and with a little luck, you could win significant cash payouts.

Blackjack, roulette, slots – offer the experience of casino gambling, but from the comfort of your home. Software-based games not doing it for you? Many US online casinos offer live dealer games. In other words, a real dealer, via a live stream, deals the cards, not an algorithm.

Types Of Casino Games At American Online Casinos

Casino Game Description
Online Slots Slots are easily the most popular game in any American online casino. Any decent site will have hundreds of titles and scores of variants to choose from. From classic 3-reel machines to games that offer 1,024 ways to win, the options are endless. Lastly, some slots boast progressive jackpots worth, hundreds of thousands, or even millions of dollars.
Scratch Cards These games are virtual versions of corner store scratch tickets. Don’t balk at them – they’re way better than their real-world counterparts. Lottery-issued scratch tickets only return an 65% of winnings to players. Meanwhile, American online scratch cards have RTPs as high as 95%!
Sports Betting From football to soccer, Americans love sports betting. Football Sundays and the baseball season get a whole lot more interesting with a couple of dollars on the line.
Live Blackjack Online Blackjack games offer some of thinnest edges online. In some cases, the house only has an advantage of 0.1%. In American online casinos, you’ll find software-based and live dealer versions of the classic table game.
Live Roulette Available in software-based or live dealer versions. You’ll find American and European versions in most US online casinos. At the eisk of sounding unpatriotic, we recommend European roulette over American. Why? Because American roulette has two “zero slots” instead of one, which increases the house edge significantly.
Live Craps Who doesn’t like hitting the Craps table? Craps at live casinos are not yet available, but with Evolution Gaming releasing Live Craps, you can hit the table right from your couch. That’s perfect.
best us live dealer casinos

Golden Nugget has the most robust American live dealer casino. In it, there are 14 different tables to choose from.

Software Providers for Online Casinos

The best game developers in the industry supply slot and casino game titles to online casino US. Most American gaming sites boast titles from multiple software vendors. Some US online casinos, like 888Casino, have exclusive games developed in-house. The most common casino software providers that supply real money casino games to USA online casinos include:

  • NetEnt
  • Scientific Games
  • IGT
  • Blueprint Gaming
  • WMS
  • BTG
  • Bally
  • Konami
  • Lightning Box
  • NextGen
  • Side City
  • High 5 Games
  • Everi
  • Red7
  • WinStudios
  • GameSys
  • 888
  • Barcrest
  • NYX

Each developer has areas where they are strong. For instance, NetEnt excels in creating slots that offer engrossing graphics, sound, and creative online gameplay. Meanwhile, IGT slots cover well-loved brands like Wheel of Fortune and Monopoly. However, you can count on top US online casinos to offer a balanced selection of slots from several different developers.

Only Safe & Trusted US Gambling

We here at BonusFinder only list American online casinos that are licensed by recognized state gaming authorities. These include bodies like the New Jersey Division of Gaming Enforcement and the Pennsylvania Gaming Control Board. Accept no substitutes – if a site isn’t registered with these bodies or any other state gaming regulator, don’t play there.

On top of this, we don’t list online casinos that have questionable ownership or a bad reputation. Not every US online casino is as well-known as Harrah’s or the Caesars. However, every US online casino listed on this site conducts themselves professionally and transparently.

Online casinos and sportsbooks listed on this site and licensed and regulated by at least one of the following agencies:

  • New Jersey Division of Gaming Enforcement
  • Pennsylvania Gaming Control Board
  • NH Racing and Charitable Gaming Commission
  • West Virginia Lottery Commission
  • Oregon Lottery
  • Rhode Island Department of Business Regulation
  • Iowa Racing and Gaming Commission
  • Indiana Gaming Commission
  • Michigan Gaming Control Board
  • Colorado Department of Revenue – Division of Gaming

As the list of states legalizing gaming grows, the number of state regulatory will follow in lockstep. When in doubt, see if a regulator actually exists. Or, to be safe, only go with American online casinos listed on BonusFinder US.

Depositing and Withdrawing

NJ and PA online casinos, and other American gaming sites have plenty of deposit/withdrawal options. Credit cards are the simplest banking methods – just enter your desired amount and your card details, and like that, you’re ready to play. Bank transfers are also a quick and painless process.

However, casino payments with these deposit methods aren’t the best solution from a privacy perspective. At month-end, the name of the online casino you deposited on will appear on your bill or bank statement. You can solve this issue by using a prepaid solution like PayNearMe or PlayPlus. If you want to use e-wallets, you can play at PayPal gambling sites.

For the most part, US online casinos will allow you to withdraw the same way you deposited. When this is not possible (e.g., credit card and PayNearMe deposits,) the site will provide alternative methods. Withdrawals, unlike deposits, are NOT instant. We have listed the estimated withdrawal times for the most common methods below.

Withdrawal Method Withdrawal Time
ACH (e-checks) 3 - 5 business days
PayPal 4 - 6 business days
Paper checks 5 - 8 business days
Prepaid cards 2 - 6 hours
Cash at the Cage 2 - 6 hours

Responsible Gambling

Online gambling in America, no matter whether you are in Pennsylvania or Michigan, is safe and secure. Bodies like the Pennsylvania Gaming Control Board ensure that games are fair, and that player funds are kept separate from operations capital. Consequently, you can trust the casinos we list with your money. Focus on fun and leave the rest to us!

We are also firm believers in customer service. The best American online casinos ensure that customer satisfaction is a top priority. Casinos we promote are fast to respond to inquiries through avenues like live chat clients and e-mail. Some US online casinos even offer phone contact. Most of all, they should provide help around the clock. American gamers play morning, noon, or night – the best sites are there for you 24/7.

US Online Casinos FAQ

What are the best online casinos in America?

The best US online casino depends on what you’re looking for in a gaming site. Slot fans will swoon over Golden Nugget Online Casino, as they have over 600 titles on offer.

Browse the subsections here at BonusFinder, and you’ll find your gaming site quickly.

Can I win real money at online casinos?

Yes. If luck is on your side, you can win cash from American online casinos in the short term. However, in the long run, the house has the edge. As such, make fun a priority - set a limit and stay within it.

How do I gamble at a real money online casino?

Start by finding a legal US online casino that resonates with you. Then, register your account. Lastly, ready your payment details and make a deposit. It's made real easy and the casino will guide you through the whole deposit process, step-by-step.

What online slots can I play for money?

The best American online casinos offer hundreds of slots that allow real money play. Golden Nugget Online Casino, for example, has well over 600 slots to choose from.

Here are some of our favorites:

  • Starburst
  • Book of Dead
  • Divine Fortune (jackpot slot)
  • Cleopatra
  • Da Vinci Diamonds
  • Wolf Gold
How can I know that online casino gambling site is legit?

Every legal US casino is regulated by a state authority, like Pennsylvania Gaming Control Board. If you don't see their logo, don't trust the casino! Although a site says US players accepted, it doesn't mean you can trust it.

There are many sites where you can gamble online. Sites such as Red dog casino, El royale casino, Bovada casinos, and Sun palace accept US players. However, they are not under US gambling law nor are they licensed in the states.