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Recommended for you: 28 casinos

Pick casinos recommended for you based on the most popular choices by our visitors in your region. These will include big and small brands with fantastic bonuses and fast payouts.

4 casinos opened since 2018

Our experts are constantly searching for new casinos and bonuses. These have all been tested thoroughly before they are allowed to be listed on our site. Fresh bonuses always offer good value.

Big Name Brands: 12 casinos

These are casinos that are operated by some of the biggest gambling brands in the world, including listed companies and high street bookmakers.

Exclusive: 36 casinos

Our connections in the casino industry allow us to negotiate bonuses and promos that you won't see anywhere else. Be the first to take up these offers.

Best Casino Bonuses for Players 2020

Enjoy a fantastic welcome bonus and many more different rewards and promotions with the top based online casino sites. Our experts reveal the best in 2020.

Are you looking to find the best online casino bonus? Do you struggle to understand how casino bonuses work? Perhaps you aren’t too clear on the rules, maybe you don’t even believe that they are real. You’ll likely want a place where you can compare the best bonuses and make your choice based on fact.

Luckily, FlashCasino.org is the premium destination when it comes to bonuses offered at online casinos. Our team of experts will show you which bonuses are the best, how the most popular bonuses work, and allow you to make the best choice based on whatever you feel is meets your demands.

Best Online Casino Bonus List

We have ranked and rated some of the top online casinos on offer to give all of our players the best chance at landing at the best casino that satisfies their criteria. We are impartial and independent and rate our list of sites with our own experts, playing with our own money and put everything together in one neat bundle for you to make an informed decision.

$ Unlimited Match Bonus with 50 Free Spinson Gods of Nature
30x
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$8888Match Bonus with 350 Free Spinson Cash Bandits 2
30x
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$ Unlimited Match Bonus
30x
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25x
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5
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50x
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1x
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8
NewExclusive
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60x
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20x
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15x
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11
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$3500Match Bonus
20x
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30x
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30x
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5x
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$ Unlimited Match Bonus
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20x
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18
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0x
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20
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40x
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21
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50x
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40x
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30x
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Use Code:SIGNUP100

Why Play at These Recommended Online Casino Sites

We Pick The Best Online Casinos For You

We have a team of experts that have been in the online casino industry for a large amount of time and know what it takes to make a fantastic destination to play online. One of the big considerations when looking for a place to play is securing an online casino bonus or mobile casino bonus, something that brick and mortar casinos can’t actually offer.

Online casinos are in a very unique position where they are able to offer you a bonus based on your deposit amount, referring friends, frequent visit bonuses or even loyalty and reward programs that can give you a big return for merely playing online at the casino.

Obviously, these rewards do come with a slight caveat where you’ll need to adhere to wagering requirements, but these are obstacles that can be easily navigated if you have all the right information at your fingertips.

That’s what Flashcasinos.org can provide to you as we’ve been through the trials and tribulations of playing online at many different online casinos offered to users from all over the United States.

How Do Casino Bonuses Work?

When you’re looking at any kind of casino bonus, it may seem to be a little confusing at times. That’s okay, because we’ve got you covered with exactly how the latest casino bonuses work. No matter what deposit bonus you choose, you’ll find out exactly how it works and how to get the most out of it, right here.

  • Minimum Deposit A minimum deposit is the smallest amount of money that you’ll need to deposit in order to trigger the bonus. Taking a look at Gossip Slots, you’ll see that they offer a claim of 250% up to $2,000. The minimum amount you’ll need to deposit is $25 in order to start qualifying for the bonus, as well as the free spins.
  • Maximum Bonus Amount A maximum bonus amount is the cap at which the bonus goes to, so when you claim it, depositing any more than what is stated at the maximum, won’t net you any more of a bonus. By entering the code “100MATCH” at Grande Vegas Casino, you’ll get a 100% bonus up to $100. By depositing anything more than $100, your additional bonus money will be capped out there.
  • Wagering Multiple A wagering multiple will be the amount of times you’ll need to play through the initial bonus and deposit amount in order to start winning. At Intertops Casino, you’ll need to playthrough 10x your bonus and deposit amount in order to claim any winnings from the Sweet 16 free slots promotion. So, if you were to deposit $50 and get a bonus $50, you’ll need to playthrough $1000 before you can start putting winnings in your account that you can withdraw.
  • Maximum Cash Out A maximum cash out is a limit that the online casino will set, where you can’t exceed that amount when taking your money out. Some online casino bonuses say that you’re only able to cash out a certain amount if you use the bonus. It’s generally quite a restricting factor so we always encourage users to look for bonuses without any restrictions. When you’re reading our reviews for online casinos, we do point this out, so be on the lookout for that.
  • Eligible Games The eligible games will be the types of online casinos games that bonus can be used on, and that the playthrough requirements will need to be satisfied by playing the eligible games. If you claim the 150% welcome bonus at Slotastic for example, you’ll need to use your welcome bonus on all slots and Keno in order to be eligible.
  • Early Cashout Rules Some online casinos will have early cashout rules, but these are few and far between. Should you meet the minimum requirements at one point and want to cash out, some online casinos will offer that and give you a portion of what you were able to win. It can also be used at sportsbooks on betting where you’ll be able to withdraw before a match result is settled.
  • Maximum Bet Rules With the maximum bet, some online casinos will determine the maximum bet for you. This can be true in sports betting and with a casino game. This is where only a certain percentage of the bonus amount can be wagered on specific bets or there’s a simple max bet on slots. With Grande Vegas, the max bet rule for all bonuses applies, which is $10. Any winnings plus bonus amounts derived from these kinds of bets will be voided.

The Types of Casinos Bonuses and How To Pick Yours

One of the most common questions that our experts hear about online casinos is, “Where can I find the best casino bonus”? The term “best” is definitely relative, so we can only present the facts to you, the user, and from there, you’ll need to find the best casino bonus that suits you.

There are many different types of online casino bonuses and a lot of them make a huge difference in your play time and in the money that you can win. Casino bonus codes will often help you along the way, whether it’s doubling your initial deposit at a site, or simply just allowing you to capitalize on the next few deposits you make by depositing on the right day.

Types of Online Casino Bonuses Explained
  • welcome/ sign up bonus

    Welcome Bonus / Sign Up Bonus

    These are usually the bigger ones that you’ll be able to claim whenever you visit an online casino site. You can sometimes get online casino bonus codes at specific sites to boost the welcome bonus even more, but not every site will be able to help you with that.

    This is the initial deposit that you make with the casino. They will give you a match bonus of your initial deposit and allow you to use that to play online casino games. Pay attention to the amount of deposits you’ll need to make and the percentage that you get back when you deposit. It’s also important to take a look at the wagering requirements because you’ll need to play through those before you’re able to get any of your winnings out.

    Have a look at other bonuses on the site too because every now and then, an online casino site will offer players an extra deposit amount when you deposit with a specific payment option or payment method.

  • No Deposit Casino Bonus

    No Deposit Casino Bonus

    These are quite rare in the online casino industry today, but when you do find one, it’s really rewarding! You’ll need to sign up and join a casino and once verified, you’ll get free, no deposit casino bonus codes that you can use on almost any game you want.

    The idea behind this is that you’re able to jump around to a few of the site’s different casino games and spend some money on the slot games or table games that you enjoy the most. If you win big from these, you’ll likely have to wait a while before you’re able to withdraw the money because the wagering requirements are quite high.

    However, if you do find a couple of these, you’ll be able to play for real money at a number of difference casinos without having to make any deposits of your own. It’s essentially just free spin after free spin with real money that wasn’t put in by you.

  • free spins

    Free Spins

    These can quite often come combined with another bonus, more specifically, a welcome bonus. You can deposit a set amount of money into your casino account and with that, you’ll get a number of free spins on an online slot.

    Don’t be fooled into thinking that these free spins are worth less than normal spins. They’re not. They are actually just as good as spins that you’ll pay for with real money, but again, the wagering requirements can sometimes be a little harsh, so make sure you read the fine print on the site whenever you decide to take advantage of these casino promotions.

    At the end of the day, if you see an online casino offering you 50 free spins or something similar, it’s a good idea to seriously consider the offering.

  • Refer A Friend Bonus

    Refer a Friend

    With these bonuses, casino players will need to refer their friends or family to the same casino and have them make a deposit. When we discuss using bonuses in tandem, this is the trick. If you and a friend are looking for the next big real money casino to play at, you can make use of a few of the bonuses on offer.

    You can both sign up and you can both collect your welcome bonus with the site after having used the casino bonus codes. From there, you’ll both get your welcome bonus and your Refer a Friend bonus, which usually gives you a small amount added to your bank balance absolutely free.

  • reload bonus

    Reload Bonuses

    These can go by many different names and some casinos don’t even advertise them as such. When you look through a site’s bonuses and promotions, make sure you go over the section with a fine-toothed comb because you’ll be able to profit off of these in the long run.

    After you’ve referred your best friend and you’ve claimed your welcome bonus, you’ll be able to get even more. Perhaps you enjoy playing at the site and want to capitalize on some more free spins or free money. Some sites will offer you an extra $50 here and there if you deposit on a Monday or a Friday.

    Many online gambling sites will offer exclusive bonuses like these that can only be found at a handful of online casino sites. Be sure to take a look at the terms and conditions of each of the bonuses and make an educated decision on which bonus suits you best.

    Other sites will give you a cashback bonus on specific days too. This means that if you were to lose your money on a particular day while playing, you can get a percentage of it back in cashback to use at the site again.

Look out for websites that allow you to use more than one bonus at a time.

Frequently Asked Questions

A casino bonus is something that is offered to you by an online casino that is free of charge once you fulfil a certain number of criteria. Most casino bonuses will require you to make your first deposit at the site and will boost your bankroll by a substantial amount so that you can essentially get free money to spend at the site.

The number is usually closer to the displayed value than you might think. Some sites offer a few hundred percent in value on your initial deposit. While there are some wagering requirements to go through, you’ll still be in a better position than if you took that money to a real-life casino rather than an online casino.

These are the requirements that a casino needs you to meet before you can get your money paid out. They are necessary to ensure that people don’t come to the site, get the welcome bonus and then cash out with free money. Some of them are fair and some are a little stricter than others, so it’s important to make sense of the wagering requirements.

For example, if you sign up to Cool Cat Casino and claim their 250% welcome bonus, you’ll be subjected to a 15x playthrough requirement. This means that you’ll need to play 15 times the deposit amount before you can withdraw any winnings.

Make sure that you play at reputable casinos such as the ones that we recommend you use when playing online. The sites that we recommend will never use bonus scams to attract customers as we’ve thoroughly vetted these casinos ourselves.

It is! If you deposit a small amount of money, you can get that money doubled for free! You’ll get to play for longer and you’ll be able to get more bang for your buck the more you play.

There can be some casino bonuses that have no playthrough requirements, but it is very rare to find them. Rest assured that when they ever do pop up, we’ll be the first to let our users know how and when they can claim them.

Not usually. It can be quite rare to find an online casino bonus that works in conjunction with live casino games. This is mostly due to the fact that live casino games will generally have a lower house edge than some other table games. When they are available though, we will highlight them and make sure that all our users get a chance to try these bonuses out.

Casino bonus abuse is usually classified as using any bonus not according to its stipulated terms. Most online casinos will say something along the lines of "1 bonus per player or per account", and if you’re taking that same bonus twice, then it’s casino bonus abuse.

Also known as bonus hunting or bagging, "bonus whoring" is a method to make money by taking advantage of casino bonuses. The main goal of it is to find bonuses that offer positive earnings expectations, where you’re able to clear them on low house edge casino games. People have actually made a living of exploiting casino bonuses before, but it doesn’t happen too much these days although you can still make money doing it.

A casino bonus hunter is someone who takes advantage of online casino bonus promotions in order to gain the most profit. If you’re into something like sportsbetting and jump around to a bunch of different providers, trying to find no deposit bonus codes or free bets, then you could be considered a bonus hunter.