Are you looking for a 300% casino bonus to claim from Ireland?
Casino bonuses are a big part of online casinos. These bonuses start from 100% and may go as high as 300%. Just like any other business, casinos use these bonuses to attract and promote casinos. They'll match your deposit up to a specific amount. These are excellent deals, especially if you have a tight gambling budget, and some of them are even instant bonuses. You may simply triple that budget with the help of 300% casino bonus offers.
These are the best 300% Irish casino bonuses available right now!



18+ | Terms & conditions apply. | Rocket Casino.
- โ 50 Bonus Spins
- โ Aztec Magic Deluxe
- โ On your first deposit

18+ | Terms & conditions apply.
- โ Fruit Machine x25
- โ Code: 20FSS
- โ 100% up to โฌ500

18+ | Terms & conditions apply. | Slotbox Casino.
- โ Book of Dead
- โ 100% up to โฌ100
- โ 100 Bonus Spins

18+ | Terms & conditions apply. | Vulkan Vegas Casino.
- โ Book of Dead
- โ 120% up to โฌ300
- โ 70 Bonus Spins

18+ | Terms & conditions apply. | Trickz Casino.
- โ 110% Bonus
- โ 100 Bonus Spins
- โ Tome of Madness

18+ | Terms & conditions apply.
- โ 100% up to โฌ500
- โ Fruit Zen
- โ 50 Bonus Spins

18+ | Terms & conditions apply.
- โ Fruit Machine x25
- โ Code: 20FSS
- โ 200% up to โฌ1000

18+ | Terms & conditions apply.
- โ Up to โฌ50
- โ Wagering x25
- โ Up to 200 Bonus Spins

18+ | Terms & conditions apply.
- โ 100 Bonus Spins
- โ Aztec Magic Deluxe
- โ Mobile App available

18+ | Terms & conditions apply.
- โ Aztec Magic Megaways
- โ Wild Cash
- โ โฌ500 Bonus & 100 Spins

18+ | Terms & conditions apply. | BCasino.
- โ 100% up to โฌ500
- โ 100 Bonus Spins
- โ Code: bca7z

18+ | Terms & conditions apply.
- โ Up to โฌ1,250
- โ 150% Sports Bonus
- โ Live Casino

18+ | Terms & conditions apply. | 1Bet Casino.
- โ Code: 1BWEL500
- โ Sportsbook
- โ Mobile App available

18+ | Terms & conditions apply.
- โ 100% Bonus
- โ โฌ1 Minimum Deposit
- โ Sportsbook

18+ | Terms & conditions apply. | Verde Casino.
- โ Book of Sirens
- โ Wagering x3
- โ 120% up to โฌ300

18+ | Terms & conditions apply.
- โ 100% up to โฌ100
- โ Wagering 25x
- โ โฌ10 Min Deposit

18+ | Terms & conditions apply. | ExciteWin Casino.
- โ 100% Bonus
- โ 200 Bonus Spins
- โ Weekly Cashback 15%

18+ | Terms & conditions apply. | Doggo Casino.
- โ Book of Dead
- โ 100% up to โฌ1000
- โ 200 Bonus Spins

18+ | Terms & conditions apply. | Mr Fortune Casino.
- โ โฌ700 Casino Bonus
- โ 50 Bonus Spins
- โ Fruit Zen

18+ | Terms & conditions apply.
- โ 100% Bonus
- โ 120 Bonus Spins
- โ Elvis Frog in Vegas

18+ | Terms & conditions apply. | Wolfy Casino.
- โ Tower of Fortuna
- โ Koodi: ZAM20
- โ Wager-free

18+ | Terms & conditions apply. | Gxmble Casino.
- โ Up to โฌ500
- โ On first deposit
- โ Wagering Requirement: 5x

18+ | Terms & conditions apply. | Arcanebet Casino.
- โ Book of Dead
- โ โฌ200 Casino Bonus
- โ 50 Extra Spins

18+ | Terms & conditions apply. | Winstler Casino.
- โ Up to โฌ500
- โ On first deposit
- โ Sports Betting

18+ | Terms & conditions apply.
- โ 100% Bonus
- โ 100 Bonus Spins
- โ Book of Dead

18+ | Terms & conditions apply. | MegaRush Casino.
- โ 100 Free Spins
- โ Book of Dead
- โ Min. deposit โฌ10

18+ | Terms & conditions apply. | Club Riches Casino.
- โ The Dog House
- โ 100% up to โฌ1000
- โ 100 Bonus Spins

18+ | Terms & conditions apply. | Winnerz Casino.
- โ 100 Bonus Spins
- โ Book of Dead
- โ Wager x15

18+ | Terms & conditions apply. | Seven Casino.
- โ 1st Bonus
- โ Wagering Requirement: 10x
- โ Sports Betting

18+ | Terms & conditions apply.
- โ Dig Dig Digger
- โ Code: ZAMSINO
- โ โฌ100 Bonus & 100 Spins

18+ | Terms & conditions apply.
- โ Up to โฌ125
- โ 25 Bonus Spins
- โ Choose your package!

18+ | Terms & conditions apply. | Maneki Casino.
- โ Big Bass Keeping it Reel
- โ 100% up to โฌ111
- โ 33 Extra Spins

18+ | Terms & conditions apply.
- โ 100 Bonus Spins
- โ Elvis Frog in Vegas
- โ Up to 1k Cashback

18+ | Terms & conditions apply.
- โ 155% Crypto Bonus
- โ 10% loyalty bonus
- โ Sports betting

18+ | Terms & conditions apply. | RANT Casino.
- โ 100% Match Bonus
- โ On First Deposit
- โ Weekly Cashback

18+ | Terms & conditions apply. | Stelario Casino.
- โ Sugar Rush
- โ Code: ZAMSINO
- โ 125% up to โฌ300

18+ | Terms & conditions apply. | Ice Casino.
- โ Book of Fallen
- โ 120% up to โฌ300
- โ 120 Extra Spins

18+ | Terms & conditions apply. | Icebet Casino.
- โ Bastet and Cats
- โ Code: ZAMSINO
- โ 125% up to โฌ300

18+ | Terms & conditions apply.
- โ 70 Spins: Lady Wolf Moon
- โ Code: KICKSTART
- โ No limited Withdrawals!

18+ | Terms & conditions apply.
- โ Majestic King
- โ Code: ZAMSINO20
- โ 200% up to โฌ500

18+ | Terms & conditions apply.
- โ $300 Casino
- โ On First Deposit
- โ Weekly Cashback

18+ | Terms & conditions apply. | Spinsbro Casino.
- โ Across the universe
- โ 115% up to โฌ420
- โ 100 Spins: Sugar Rush

18+ | Terms & conditions apply. | CosmicSlot Casino.
- โ Across the Universe
- โ 100% up to โฌ500
- โ 100 Bonus Spins

18+ | Terms & conditions apply. | CasiGo Casino.
- โ โฌ5 Minimum Deposit
- โ Jokerโs Jewels
- โ Daily new bonuses

18+ | Terms & conditions apply. | Lucky Heroes Casino.
- โ 100% Bonus
- โ 200 Bonus Spins
- โ 15% Weekly Cashback

18+ | Terms & conditions apply. | Richardd Casino.
- โ 100% Bonus
- โ 100 Bonus Spins
- โ Elvis Frog in Vegas

18+ | Terms & conditions apply. | Voodoo Casino.
- โ 100 Bonus Spins
- โ Hit The Route
- โ Lucky Lady Moon

18+ | Terms & conditions apply. | WinningDays Casino.
- โ On your first deposit
- โ Book of Cats
- โ Bitcoin accepted

18+ | Terms & conditions apply. | Captain Spins Casino.
- โ 260 free spins
- โ Skrill
- โ 100% bonus

18+ | Terms & conditions apply. | LV Bet Casino.
- โ Wild Hop & Drop
- โ Code: HOPDROP
- โ 200% Casino Bonus

18+ | Terms & conditions apply. | Casino Friday.
- โ 100% Bonus
- โ 200 Bonus-Spins
- โ Non-Sticky

18+ | Terms & conditions apply. | StreamBetz Casino.
- โ โฌ10 Min. Deposit
- โ 100 Bonus Spins
- โ Book of Fallen

18+ | Terms & conditions apply. | JackpotCity Casino.
- โ 100% Match Bonus
- โ โฌ10 Min. Deposit
- โ Casino Mobile App

18+ | Terms & conditions apply. | WildTornado Casino.
- โ 100 Free Spins
- โ WILD100
- โ โฌ10 minimum deposit

18+ | Terms & conditions apply.
- โ 100 Bonus Spins
- โ Elvis Frog in Vegas
- โ Min.dep: โฌ20

18+ | Terms & conditions apply.
- โ Miss Cherry Fruits
- โ On first deposit
- โ Crypto deposits accepted

18+ | Terms & conditions apply.
- โ 100% Match Bonus
- โ Irish Casino
- โ Live Casino

18+ | Terms & conditions apply.
- โ 200 Bonus Spins
- โ 100% Bonus
- โ Live Casino

18+ | Terms & conditions apply.
- โ 20 Free Spins
- โ Non-Sticky
- โ Monday 50% Cashback

18+ | Terms & conditions apply.
- โ On First Deposit
- โ Book of Dead
- โ HD Live Casino games

18+ | Terms & conditions apply. | Winhalla Casino.
- โ Book of Vikings
- โ Code: 20FREESPINS
- โ โฌ200 Casino Bonus

18+ | Terms & conditions apply.
- โ Book of Fallen
- โ Code: 20FREESPINS
- โ โฌ400 Casino Bonus

18+ | Terms & conditions apply. | Jonny Jackpot Casino.
- โ โฌ5 Minimum Deposit
- โ Agent Jane Blonde Returns
- โ Fast Withdrawals

18+ | Terms & conditions apply.
- โ Valley of the Muses
- โ Code: 50FREESPINS
- โ 400% up to โฌ400

18+ | Terms & conditions apply.
- โ 100 Bonus spins
- โ Starburst
- โ Minimum Deposit โฌ10

18+ | Terms & conditions apply. | LeoVegas Casino.
- โ 200 Spins on Book of Dead
- โ Wagering 25x
- โ Minimum Deposit โฌ10

18+ | Terms & conditions apply.
- โ Up to โฌ500
- โ 150 Free Spins
- โ Book of Dead

18+ | Terms & conditions apply. | OhMySpins Casino.
- โ 200 Bonus Spins
- โ Cashback Offers
- โ 100% Bonus

18+ | Terms & conditions apply.
- โ Book of Dead
- โ On First Deposit
- โ โฌ10 Min Deposit

18+ | Terms & conditions apply.
- โ 40 Bonus Spins
- โ Starburst Xxxtreme
- โ 100% Bonus

18+ | Terms & conditions apply.
- โ 150 Zee spins
- โ 500 Zee points
- โ 100% bonus

18+ | Terms & conditions apply. | Vegas Lounge Casino.
- โ โฌ400 Casino Bonus
- โ No wagering requirements
- โ โฌ20 Minimum Deposit

18+ | Terms & conditions apply.
- โ 200 Bonus Spins
- โ 15% Weekly Cashback
- โ 100% Deposit Bonus

18+ | Terms & conditions apply.
- โ 150 Bonus Spins
- โ Juicy Fruits 27 Ways
- โ Coco Tiki

18+ | Terms & conditions apply. | King Billy Casino.
- โ 100 Bonus Spins
- โ 100% Bonus
- โ No Maximum Win

18+ | Terms & conditions apply.
- โ 100 Bonus Spins
- โ JockerPro
- โ Starburst

18+ | Terms & conditions apply.
- โ Up to โฌ5000
- โ 50 Bonus Spins
- โ Eligible Netent Games

18+ | Terms & conditions apply. | Energy Casino.
- โ โฌ10 Deposit
- โ Book of Dead
- โ Ireland Exclusive

18+ | Terms & conditions apply.
- โ โฌ100 Reload Bonus
- โ Weekly Tournaments
- โ 100% Match Bonus

18+ | Terms & conditions apply. | Party Casino.
- โ 20 Bonus Spins
- โ Melon Madness Deluxe
- โ 100% Match Bonus

18+ | Terms & conditions apply.
- โ 50 bonus spins
- โ New casino NZ
- โ 200% bonus

18+ | Terms & conditions apply.
- โ Fast sign up
- โ VIP treatment
- โ Fast cashouts

18+ | Terms & conditions apply.
- โ Up to โฌ2000
- โ โฌ20 Min. Deposit
- โ Code: ROYAL

18+ | Terms & conditions apply.
- โ 25 Free Spins
- โ Wild Toro
- โ 100% Bonus

18+ | Terms & conditions apply.
- โ Betting
- โ Book of Dead
- โ Live casino

18+ | Terms & conditions apply.
- โ 10 free spins
- โ Starburst
- โ 100% bonus
Table of Contents
๐ 300% Casino Bonus Explained
A 300% casino bonus is a deposit match you can receive as a new or existing player at Irish online casinos. New players can benefit from 300% welcome bonuses up to the amount specified by the operator. As for existing customers, they can get the same offer as a reload bonus. A maximum bonus amount you can get will also be set by the casino.
So, to grab a 300% casino bonus, you must sign up with an Irish-friendly gambling site that offers it first. Simply pick one from our list as all of them are fully regulated and licensed. As such, they will provide you with a safe and fair gaming experience. Next, make a qualifying deposit. The amount required to activate the bonus varies from casino to casino, so read the rules carefully.
In some cases, you may be required to enter the promo code to unlock a 300% casino bonus. Or you may be asked to redeem a few other bonuses before it. Each casino has its own bonus rules, or terms and conditions, so make sure to adhere to them to make the most of the offer.
๐ How to Keep Winnings from a 300% Casino Bonus?
All the winnings you obtain while using a 300% casino bonus will be added to your bonus balance. To keep them, you must complete a playthrough. In other words, you must meet a wagering requirement set by the casino.
In general, wagering requirements of 30x or 40x apply to bonuses at the best Irish online casino. Yet, 300% bonuses can carry higher wagering requirements because these offers quadruple your bankroll. No matter how generous a casino offer may be, wagering requirements exceeding 60x are considered unacceptable.
While wagering the bonus, pay attention to the wagering contribution rates of the games you like. Not all bets are valued equally, so if you play blackjack or roulette, for instance, your bets may not be deducted from the amount you must wager at all. Or, they may contribute at a significantly lower rate, of 10% or 20% only. The safest bet is most online slots since wagers on them typically count 100%.
๐ Recommended Online Casinos
There are many outstanding 300% Casino Bonuses for you to enjoy. The welcome bonuses offered at some of these casinos are enormous.
The welcome bonuses at these casinos are above the standard, and the player experience is everything but average. These casinos do not feel the need to tempt gamers with grandiose promises and massive welcome bonuses since they know they have that extra something.
Running after those large bonuses is not always the best course of action. The first thing you should consider is sticking to casinos where you know you have a good shot of winning. So pick something worth your time, effort, and money. There are as many terrible bonuses offers as there are bad casinos, so make your decision carefully.
To help you out, we have a list of the best 300% casino bonuses for you to enjoy. Plus it means you don't have to search for them yourself. So take a look at the best options here:

๐ Casino Bonuses in General
Who doesn't enjoy a decent casino welcome bonus? It would be silly not to take advantage of the increased game time and positive expected value that this provides. As a new player, you'll almost always be allowed to claim a welcome bonus, which can come in the form of free spins, bonus cash, or a combination of the two. Our recommendation is to go for it!
๐ 300% Casino Bonus โ Benefits
The key benefit of using a 300% casino bonus is obvious: you get 4x more money than you have deposited to play with. So, you will get your bankroll quadrupled, as well as the playtime. In a nutshell, if you claim this offer, you will have much more opportunities to win, depending on your playing style.
๐ 300% casino bonus – downsides
There's a lot to be said for claiming a 300% match deposit bonus, not least you get a massive boost to your bankroll. However, there are a few downsides too. The main one of these is that this type of bonus always has wagering requirements attached. These can be quite high too, and this can make it hard for you to get your hands on any winnings.
๐ Things to keep in mind when claiming large casino bonuses
Below, we list a few things you need to consider before claiming a 300% casino bonus.
๐ Wagering Requirements
It is important to meet the wagering requirement within the specified time frame. If you think this may be difficult for you. It is wise to deposit a smaller amount and spin away knowing that you'll be able to meet the wagering requirement within the time frame.
๐ 300% Casino Bonus Cash Out Limits
Your 300% casino bonus will almost always have a cash-out limit, which is normally a certain amount related to your deposit. If you deposit โฌ34, you may be able to cash out up to 5 times your initial deposit: 5174.
It is important to check the cash-out limit, especially if you are using your bonus to play jackpot slots. It is a wise idea to first complete your wagering requirements on a non-progressive slot before moving on to the latter.
๐ 300% Casino Bonus Bet Limits
Another thing you should be aware of is that you will not be able to wager as much as you want while playing the bonus through. The maximum bet limit varies from casino to casino, but on most Irish gambling sites, you will be able to bet up to โฌ5 per round. If you go over, your bonus might be forfeited. To avoid this and keep your winnings, please study the terms and conditions.
๐ 300% Casino Bonus Time Limits
Even if a promotion is ongoing, it will have an end date. It is critical to read the terms and conditions of your 300% Casino Bonus to understand what could happen if the conditions are not met.
๐ FAQ
A 300% casino bonus is a huge incentive to sign up for a site. Because most casinos only give deposit bonuses of 100%, also known as a Match Bonus. Fortunately, some casinos are going all out with their welcome bonuses, offering up to 300% on your first deposit.
It's to attract more customers to casino websites. Imagine a casino that offers a 300% match bonus on your initial deposit. These types of casino sites will most likely be your first pick if you are a beginner player. Every online casino offers some sort of welcome bonus though deposit bonuses of 300% are quite rare.
No, not all of them offer a 300% bonus. This is why you need to check our list of the top 300% deposit bonus casinos so you can find the perfect place to play!
If you want to keep your winnings from a 300% bonus, you must meet the wagering requirement it carries. You can do it only by wagering real money on eligible games within a set timeframe.
The time you have to meet the wagering requirement depends on the offer you claim. In most cases, you can do it within 30 days.
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Erik King
Editor in Chief - Zamsino.com
I always loved gambling and probably always will, spending my time reviewing gambling sites to help people save time.
Last updated 24/08/23 by Erik King