Best Online Casino Bonuses in 2025

How I rank the best casino bonuses

Since my expertise mainly revolves around identifying the best casino bonuses available, I’m here to give you some insider tips on how we identify and rank the best casino offers and the operators that stand out as the best for their promotions. Here are 5 criteria we run through:

• Overall bonus value: Not only do I check the bonus amount, but I also consider the overall value of the bonus.

• Wagering requirements: I find that the usual range of wagering requirements will be between 30x and 45x. Anything above 45x is considered too high, and I wouldn't recommend you go for such an offer.

• Bonus expiry: Typically, the welcome offer will have a valid period of 7 days and the free spins are usually valid for 24 hours.

• Licensing: I make sure that the casino has a stellar reputation and their licence is solid.

• Read reviews: I like to read through other players' feedback and their reviews of how they found their experience claiming a bonus on online forums.

I’m usually able to find all the information I need to determine if a specific bonus suits me best, either in the general casino terms or the individual bonus T&Cs.

How I compare my favourite casino bonuses

In my comparison below, I’ve listed this month’s top online casinos and matched them with the most popular player categories on CasinoTopsOnline. This included the best casino offering top bonuses for free spins, players looking for cashback bonuses, or even users who prefer regular daily bonuses. Here’s my full list:

🚀 CTO bonus pick	Loot Casino
💳 Best prize wheel bonuses	FeverSlots
🏆 Best for weekly bonuses	GGBet
🎰 Best reload bonuses	Verde Casino
💎 Best welcome bonuses	Chalk Wins
🤵 Best tournament bonuses	Stake
🎲 Best free spins bonuses	Ivibet
📋 Best cashback bonuses	Ice Casino
⚡ Best for daily bonuses	Rise of Bets
✔️ Best for casino games bonus	Rollino Casino

My favourite bonuses I’ve seen at our top-rated casinos

One of the best bonuses I've seen on the market today is from Stake, which offers multiple free spins offers throughout the week. For example, their Happy Hours promotion every Wednesday gives you a chance to win up to 500 free spins. If you’re looking for the rest of my favourite picks, here are my favourite bonus categories matched with the best online casinos:

• Best overall bonuses pick - Loot Casino

• Best prize wheel bonuses - FeverSlots

• Best for weekly bonuses - GGBet

• Best reload bonuses - Verde Casino

• Best welcome bonuses - Chalk Wins

What different types of online casino sign up bonus are available?

At the best online casinos, you can expect to get anything from a deposit bonus matching a percentage of the amount on your deposit, a number of free spins, or even a cashback offer on a portion of your lost bets when you sign up. 

What is a welcome bonus?

A welcome bonus, usually in the shape of a package, is a promotion any player can claim when they register to an online casino as a new member. Casinos design these offers competitively to give players a fun start to their journey in the games library. Welcome bonus offers normally include free spins, matched deposits, or even a combination of both. I’ve also encountered the following additions to some top casino operator’s welcome offers:

• Additional cashback casino bonus offers usually at 10% cashback.

• No-deposit requirements on the offer.

• Some even offer prizes, like a ticket for a chance to win a jackpot or even a trip to watch your favourite match.

Let me break down some of the most important details and some of my tips from my own experience with the best casino welcome bonus types:

• If you can aim for a bundle rather than a single offer, you can end up getting more.

• Don’t be fooled by big numbers! A matched offer of 100% up to €100 might look nice, but a matched offer of 100% up to €50 + 200 Free Spins will work out to be more fruitful if you love slots.

• I always like to check out other casino bonus offers I can get in the long run as a player, not just the welcome offer itself! Sometimes, the new player promotion might seem chunky, but then the casino might not offer you decent offers after you’ve signed up.

How can players activate a casino welcome bonus?

These are the eight simple steps I followed to activate my welcome offer at Mr Vegas:

• I selected Mr Vegas after making sure it was a reputable online casino.

• I then checked the casino promotions page to make sure the welcome package was what suited me best.

• I always advise my players to read and analyse the T&Cs carefully.

• Once I was happy with this offer, I hit the registration button. I normally find this at the top right corner of the page or in the menu; of course, every site is built differently.

• I then had to provide some of my personal details. I filled in this information including my date of birth and my email address. I also submitted the proof of identity and residence documents I was asked for, just so that when I came to withdraw any funds later on, the process would go quicker.

• Normally, a deposit is needed for welcome offers. If this is the case, I always make sure to meet the minimum deposit requirement. If the entire package is a no-deposit bonus, then I move straight to the next step.

• All I needed to do now was play some games and have fun! I had to make sure that I was playing qualifying games so I could be able to claim my bonus.

• If I was successful, I could withdraw my bonus winnings from my account or use them to continue playing.

What casino promotions can I usually find at an online casino?

A variety of offers, such as free spins, deposit matches and seasonal bonuses, can be available at your registered online casino. Besides the welcome offer, which every casino usually rolls out to new players, you can look at the casino's promotions page to get an idea of what bonus offers you can claim as a player throughout.

It's now the time of year when seasonal promotions are prevalent. For example, Christmas casino bonuses will be available from now until the end of the month. Keep in mind that some casinos offer players additional promotions via email or strictly through a loyalty rewards programme.

At the best online casinos, you should always find a decent amount of promotions on this page. Here’s a taste of what you can expect to find at the casinos we list:

All Casino Offer Types	Similar Examples at Different Casinos	What is it?	How it works?
Deposit Match Bonus	Make a first deposit and get up to 150%	I deposited €50, and got €75 ready in my account to play! Then, I just needed to wager the amount required in the T&Cs.	In most cases, it happened automatically on my first deposit; some casinos needed a bonus code as detailed in their T&Cs.
Free Bonus Spins	Get up to 200 Free Spins on Big Bass Splash	I deposited €20 and got 100 Free Spins, and the next day, I deposited another €10 and got another 50 Free Spins. I could have received the remaining 50 Free Spins with a third deposit. And I made sure to use my spins on Big Bass Splash so I wouldn't lose my winnings.	In most cases, it happened automatically on my first deposit; some casinos needed a bonus code as detailed in their T&Cs.
Welcome Bonus Packages	Get 150% up to €1,000 + 200 Free Spins	Usually, I find combinations of a deposit match bonus and free spins bonus, but I've also found some including other offers such as cashback or no-deposit bonuses.	This is often an automated process, but you might need a bonus code to unlock the additional offer.
No-Deposit Bonus	50 No-Deposit Free Spins when you confirm your phone number!	I've come across many ways a casino gifts players a no-deposit bonus, like referring a friend, confirming personal contact details, downloading the casino application, or even signing up for mailing lists.	You can activate this casino offer by registering or using a bonus code.
Tournaments and Special Events	Golden Spaces Tournament: €40,000 worth of prizes	I don't find myself competing often; these usually require dedicated time! Our slots expert, James, has had a go here and there. Most casinos offer prize pools that are divided between the players placed in ranked tiers. All casinos give out the rules you need to follow.	Mainly popular with large casinos offering the top software providers. Some providers only release tournaments on special occasions or holidays.
Seasonal Offers	50 Free Spins on Spooky Family	I usually find offers around most seasonal periods of the year; celebrate them or not, they make for some great extra fun. If you were to claim a 50 Free Spins bonus on a Horror-themed slot during Halloween time, the bonus would normally be awarded to you automatically on a deposit or by using the casinos' themed bonus code.	Only available during special world events and holidays with bonus code or by completing tournaments.
Sports Betting Offers	Bet €10, Get €10	I do love a punt besides my usual casino fun. I usually find a good variety of sports offers at operators offering both verticals. The most common offer is a matched bonus amount on a qualifying bet, which you can, in return, use for other punts or sometimes even simply add to your account for general use at the operator. Be sure to get the details from the terms and conditions before you commit.	Only available at operators who also offer sportsbooks

What do loyal players get?

VIP status is given to a player who shows loyalty towards the casino. When I earned my VIP status at Mr Vegas, I was offered some extra special rewards, and I noticed that I also had higher bonuses available now. You can even be rewarded with a trip to Las Vegas for your consistent playing, birthday presents, and a dedicated account manager who speaks your preferred language when available.

Many VIP casino memberships come in different levels, usually indicated by a Bronze, Silver, Gold and Platinum membership. Each level comes with exclusive perks for regular casino game players. Some key tips and highlights to consider:

• VIP Casino Bonuses boost the loyalty of players

• They can be very generous with benefits

• Like any other casino bonus, take your time to check the terms and conditions

How can I choose the best casino bonus?

• Compare different bonuses: I like to take my time to evaluate the different types of casino bonuses available to ensure that I’m making the right choice! If you're limited with time you can check out user review platforms or read online casino reviews from casino experts like CasinoTopsOnline.

• Read the terms and conditions: Before claiming any of the best online casino bonuses, I always take a good look at the terms and conditions. Two key things to look out for are minimum deposit limits and any expiration dates or time limits you have to claim the bonus!

• Check for wagering requirements: The playthrough requirements need to be fulfilled so you can ensure that claiming the bonus remains affordable to you. These can range from as little as 1x to as much as 150x. Bonuses with requirements of 20x or lower are considered low wagering casino bonuses.

• Claim more bonuses: As long as the terms are favourable to you, there is a higher chance of getting greater gameplay. Keep in mind that not all casino sites will allow you to claim multiple bonuses at one go.

Casino bonus terms and conditions to look out for

The most common casino bonus terms and conditions include wagering requirements, maximum winnings, game restrictions, and time limits. These terms are put in place to ensure that players and the casino have a fair and safe gaming experience. By understanding these terms and conditions, players can avoid potential issues and enjoy a safe and enjoyable online gaming experience. 

Here are the most common casino T&Cs that I’ve found at the best online casinos:

• Wagering requirements: The amount of money required to bet before being able to convert bonus cash into real money.

• Maximum winnings: The cap on winnings that you can receive from your bonus offer.

• Game restrictions: The bonus may only be wagered on specific game titles.

• Time limits: Bonuses will usually have to be completed within a set timeframe, if not they could expire.

• Deposit limits: As part of keeping players safe and to ensure you are gambling responsibly, you may have to input a maximum amount you can deposit over a certain period of time.

• Country restrictions: Not all casinos and/or bonuses are available worldwide and may only be accessible in certain countries.

• Age restriction: Gambling age restrictions vary across different countries. In most countries, you need to be at least 18 years old to gamble.

• Verification requirements: To ensure that you are of legal age and are in a legal location, casinos will carry out verification checks such as proof of identity and residence.

• Using bonuses simultaneously: Casinos do not usually allow players to complete more than one bonus at the same time.

• Casino payment method restrictions: Not all casinos accept all of the same payment methods, meaning your chosen casino may not allow you to deposit or withdraw using your preferred method.

How do I fulfil casino bonus wagering requirements?

Wagering requirements will typically range between 20x to 50x of the casino bonus amount and initial deposit. It is important to check the terms and conditions and see whether your deposit is included in the wagering requirement, as this will make a significant difference. 

Here is an example of how I have fulfilled wagering requirements for the Casimba Casino welcome bonus in the past:

1. The Casimba Casino welcome bonus: I was offered a 100% deposit match up to €200 plus 50 bonus spins on Book of Dead and 50% of my second deposit up to €50.

2. I read the terms and conditions: When accessing any bonus, I always make sure that I carefully read the T&Cs. Key terms included that I was a new, verified player, I had to make a minimum deposit of €20, bonus spins were restricted to the slot game Book of Dead and used within 72 hours, bonus funds and my cash deposit had to be wagered 35x before being converted into withdrawable cash. 

3. I made my deposit: I made a deposit of €100, which provided me with €100 in bonus funds. That took my total bankroll to €200. That meant I had to wager a total of €7000 (200 x 35 = €7000), excluding the bonus winnings from the free spins.

4. I used my bonus spins: I spun the wheels of the Book of Dead slot game in order to earn my bonus funds from the free spins. The bonus spins winnings were capped at €100.

5. I wagered through my deposit and bonus funds: I had to wager through my initial deposit and my total bonus funds according to the 35x wagering requirements and within 30 days of being credited. Playing any slot, scratchcard or keno game counted 100% towards the requirements, but there were some exceptions on particular slots. The maximum bet I could place using my bonus funds was €5. 

6. I withdrew my winnings: After completing all of the playthrough restrictions, I was able to make a withdrawal. The minimum I could withdraw was €20.

Responsible gambling at online casinos with the best bonuses

It's a must for online casinos to encourage safe and fair gaming practices, helping players avoid harmful habits that could lead to addiction. Looking after yourself and your gaming habits is super important when exploring operator sites to claim your casino bonus. To stay in the know and play responsibly, take a look at our guides on responsible gambling.

What is the legal gambling age when claiming a casino welcome bonus?

Different gambling age restrictions apply depending on the jurisdiction you come from:

• 18+ (Most countries around the world).

• 20+ (Sweden, Japan).

• 21+ (Belgium, Estonia, Ukraine, India, Indonesia, Macau, Malaysia, Philippines, Singapore, Sri Lanka, Vietnam).

• 23+ (Greece).

• 25+ (Portugal).

• In the United States, 21+ in the states of New Jersey, Pennsylvania & West Virginia and 18+ in Michigan.

Always check the legal gambling age in your country of residence.

Avoiding bonus abuse

Bonus abuse refers to any attempt by players to exploit promotions or casino bonuses in a way that goes against their intended use. At CasinoTopsOnline, we value fair play and want everyone to enjoy a positive gaming experience. To ensure a level playing field, it's important to be aware of and avoid bonus abuse.

To promote a fun and fair environment for all players, we encourage our readers to familiarise themselves with casino bonus terms and conditions. By understanding the rules, you can make the most of casino bonuses. Remember, responsible gaming leads to a more enjoyable online casino experience.