Best online casino bonuses 2025 - Top NZ bonus offers

Claim up to $1,600 in cash and hundreds of free spins at top-rated NZ online casinos. We’ve featured the best casino bonuses for Kiwis, verified for fair wagering, long validity periods and high win caps. 

Best casino bonuses

Claim online casino bonuses

Welcome package
Jackpot City Casino
Jackpot City Casino
100% up to $1,600
Wagering35x
Min deposit$5
Valid7 days from signing up
Claim bonus
T&Cs
Read full terms & conditions
35x wagering requirements | Valid for 7 days | NZ$10 minimum deposit | New players only
Welcome packageNew casino
Kiwi's Treasure
Kiwi's Treasure
100% up to $1,000
Wagering35x
Min depositNZ$10
Valid7 days
Claim bonus
T&Cs
Read full terms & conditions
Wagering requirements applied | Minimum deposit required | New players only | General T&Cs apply
Welcome package
Casino Days
Casino Days
100% up to $1,000 + 100 free spins in Sweet Bonanza
Wagering35x
Min deposit$20
Valid7 days
Claim bonus
T&Cs
Read full terms & conditions
Wagering requirements applied | Minimum deposit required | New players only | General T&Cs apply
Welcome package
Lucky Spins
Lucky Spins
100% up to $500 + 500 free spins on Big Bass Amazon Xtreme
Wagering35x
Min depositN/A
Valid7 days
Claim bonus
T&Cs
Read full terms & conditions
Wagering requirements applied | Minimum deposit required | New players only | General T&Cs apply
Welcome package
Spin Casino
Spin Casino
100% up to $1,000
Wagering35x
Min deposit$5
Valid7 days from signing up
Claim bonus
T&Cs
Read full terms & conditions
35x wagering requirements | Valid for 7 days | NZ$10 minimum deposit | New players only
Welcome package
Ruby Fortune Casino
Ruby Fortune Casino
100% up to $750
Wagering35x
Min deposit$5
Valid7 days from signing up
Claim bonus
T&Cs
Read full terms & conditions
35x wagering requirements | Valid for 7 days | NZ$10 minimum deposit | New players only
Welcome package
Wildz
Wildz
100% up to $1,000 + 200 free spins
Wagering35x
Min deposit$10
Valid8 days
Claim bonus
T&Cs
Read full terms & conditions
35x wagering requirements | Valid for 8 days | NZ$10 minimum deposit
Welcome package
TonyBet
TonyBet
100% up to $1,000 + 100 free spins
Wagering50x
Min deposit$15
Valid14 days
Claim bonus
T&Cs
Read full terms & conditions
50x wagering requirements | Valid for 14 days | €20 minimum deposit | New players only
Welcome package
Betway Casino
Betway Casino
100% up to $1,000
Wagering50x
Min deposit$10
Valid30 days
Claim bonus
T&Cs
Read full terms & conditions
50x wagering requirements | Valid for 30 days | $/€10 minimum deposit | New players only
Welcome package
22Bet
22Bet
100% Up to $500
Wagering50x
Min deposit$2
Valid30 days
Claim bonus
T&Cs
Read full terms & conditions
50x wagering requirements | Valid for 30 days | NZ$2 minimum deposit | New and regular players

Deep dive into the best bonus casinos in NZ

We spend hours reviewing New Zealand online casinos to find sites offering thousands of dollars and/or free spins to use on trending online pokies like Sweet Bonanza, 9 Masks of Fire and Gates of Olympus.  

To save you from doing the hard work, we’ve listed the best online casinos in NZ for various bonus types. From minimum deposit offers to no deposit bonuses, here are our top recommendations: 

💰 Best online casino welcome bonus

Jackpot City Casino

🆕 Best new casino bonus

Kiwi's Treasure

💸 Best cashback bonus

Casino Days

🔂 Best reload bonus

Lucky Spins

🆓 Best no deposit casino bonus

Spin Casino

💵 Best $10 deposit casino bonus

Ruby Fortune

🎥 Best live casino bonus

Rizk

🎰 Best free spins bonus

Wildz

💲 Best first deposit bonus

TonyBet

📱 Best mobile casino bonuses

Betway Casino

🎁 Best birthday bonus

22Bet

Jackpot City Casino

Jackpot City Casino

4.9/5

RTP 97.84%

Best sign-up bonus casino

Welcome package 100% up to $1,600

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureGet 10 daily chances to win $1 million for 30 days

Jackpot City offers one of NZ’s best welcome bonuses, with up to $1,600 across your first four deposits and 10 daily chances to win $1 million! The bonus comes with fair 35x wagering requirements, but the standout detail is the 60-day time limit – double what most online casinos offer. This gives you plenty of time to explore the site’s 1,700+ games, including slots, casino poker, roulette, video poker and blackjack.

Time to sign up2-3 minutes
Time to depositInstant
Time to withdraw1-3 working days
Kiwi's Treasure

Kiwi's Treasure

4.8/5

RTP 98.81%

Best new bonus casino

Welcome package 100% up to $1,000

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureYour first $1 deposit unlocks 50 free spins

If you’re looking for a generous welcome bonus package, Kiwi’s Treasure will cover your first six deposits. We like that the bonus caters to players on a budget with 50 free spins on Blazing Bison Gold Blitz for a $1 minimum deposit. Your second deposit of $5 unlocks 80 spins on Atlantean Treasures Mega Moolah, and the following four deposits of $10 or more will award up to $1,000 to use on the entire game library. 

Time to sign up1 minute
Time to depositInstant
Time to withdraw1-3 working days
Casino Days

Casino Days

4.8/5

RTP 98.50%

Best for cashback

Welcome package 100% up to $1,000 + 100 free spins in Sweet Bonanza

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureUnlimited cashback potential

Join Casino Days to take advantage of a 3-day 10% cashback bonus between Friday and Sunday. We love that it comes with low 10x wagering requirements and no upper limit on how much you can recoup in cash. The only downside is table games aren’t eligible for the promotion. If the cashback still sounds ideal, you can withdraw your winnings with over 10 payment methods, including cryptocurrency. 

Time to sign up1-2 minutes
Time to depositInstant
Time to withdraw0-2 working days
Lucky Spins

Lucky Spins

4.7/5

RTP 97.56%

Best for ongoing promotions

Welcome package 100% up to $500 + 500 free spins on Big Bass Amazon Xtreme

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top feature5,000+ games from 50 top providers

Lucky Spins is a modern online casino that’s a go-to for players who love regular rewards. After using the generous welcome bonus, returning players can reload their accounts with match deposit promos, free spins and cashback. Our favourite offer is Kiwi Mondays, which awards a 25% deposit bonus of up to $100 and free spins on NZ’s most popular pokies. VIPs can also unlock higher-value bonuses and exclusive offers. 

Time to sign up2-3 minutes 
Time to depositInstant
Time to withdraw1-2 working days
Spin Casino

Spin Casino

4.8/5

RTP 98.65%

Best no deposit bonus casino

Welcome package 100% up to $1,000

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureUnlimited bonus spins for two minutes

Visit our no deposit page to enjoy unlimited bonus spins for two minutes at Spin Casino for free! We managed 34 spins when we tested the bonus, and though the $20 win cap isn’t as competitive as KatsuBet’s $100 limit, it’s more than enough to explore the 1,700+ games. Plus, with a 4.4-star Trustpilot rating, you can play with confidence knowing the gambling experience at Spin Casino is safe and reliable. 

Time to sign up2-3 minutes
Time to depositInstant
Time to withdraw1-3 working days
Ruby Fortune

Ruby Fortune Casino

4.7/5

RTP 97%

Best $10 deposit bonus casino

Welcome package 100% up to $750

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top feature1,600+ games from industry-leading providers

Compared to other top casinos, Ruby Fortune’s 100% match bonus of up to $750 is small, but with global backing from thousands of players, the casino experience is high-quality. A $10 minimum deposit will activate the bonus, and if you're on a budget, Ruby Fortune lets you join in on the fun for half the price. You can’t access the welcome bonus with $5 but can enjoy prize drops and tournaments with real cash prizes.  

Time to sign up2-3 minutes
Time to depositInstant
Time to withdraw1-3 working days
Rizk

Rizk Casino

4.7/5

RTP 96.89%

Biggest casino bonus

Welcome package 100% up to $4,000 + 50 free spins

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureSpin the Wheel of Rizk for wager-free prizes

Alongside the $4,000 sign-up bonus, Rizk offers a generous live casino welcome bonus: 100% match up to $3,500. While you must deposit $50 to activate the promo, we love that there’s no cap on winnings or withdrawals! Plus, with a low 15x wagering requirement and expiry period of 364 days – unheard of at online casinos – you’d only have to wager a daily average of $2 to clear the requirements. 

Time to sign up1-2 minutes
Time to depositInstant
Time to withdraw0-24 hours
Wildz Casino

Wildz

4.6/5

RTP 97.13%

Free spins on sign up

Welcome package 100% up to $1,000 + 200 free spins

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureLoyalty+ programme with up to 20% cashback

Spin your way to lucrative payouts with Wildz’s generous 200 free spins bonus – part of the casino’s first deposit welcome offer for new players. The free spins, allocated in batches of 25 over eight days, can be used on the casino’s collection of slot games except for a few select titles (full details found in the casino’s T&Cs), and they must be wagered 35x before you can withdraw any winnings. 

Time to sign up1 minute
Time to depositInstant
Time to withdraw1-5 working days
TonyBet

TonyBet

4.6/5

RTP 98.35%

Best first deposit bonus casino

Welcome package 100% up to $1,000 + 100 free spins

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureGet cash prizes for completing daily quests

TonyBet’s generous welcome offer doesn’t require multiple deposits. Simply add $35 to double your bonus funds or spend the maximum $1,000 to claim the full $2,000, complete with 100 free spins awarded in batches of 25 over four days. All winnings are subject to a 50x wagering requirement, and unfortunately, only pokies contribute towards the playthrough requirements (table, crash and live dealer games are excluded). 

Time to sign up1-2 minutes
Time to depositInstant
Time to withdraw0-5 working days
Betway

Betway Casino

4.6/5

RTP 96.71%

Mobile-exclusive bonuses

Welcome package 100% up to $1,000

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureChoose from five casino bonuses on registration

Betway knows how to keep its players happy, allowing you to pick one of five casino bonuses tailored to your play style when you sign up. We also love the range of mobile-exclusive rewards, including access to the daily free spin prize wheel to win a casino bonus or cash prize. For the best mobile experience, play at the Betway app, which has been rated 4.6 stars on the App Store and 4.2 stars on the Google Play Store. 

Time to sign up1-2 minutes
Time to depositInstant
Time to withdraw1-3 working days
22Bet

22Bet

4.5/5

RTP 96.46%

Best birthday bonus casino

Welcome package 100% Up to $500

Peace Nwankpa
Peace NwankpaNZ casino reviewer
Top featureSupports over 70 payment methods

Celebrate your special day in style with 22Bet’s birthday bonus and get 500 points for the ‘Shop’ – no strings attached. Simply opt-in to receive emails, participate in the bonus programme and complete your account profile to receive the birthday bonus. 22Bet also made it to our top 10 list for accepting $2 minimum deposits. It’s one of the lowest deposit casinos in NZ, outclassed only by Kiwi’s Treasure, which supports $1 deposits. 

Time to sign up1-2 minutes
Time to depositInstant
Time to withdraw0-7 working days

Types of online casino bonuses

Casino bonuses are designed to attract new players and reward existing players for sticking around. Typically, welcome bonuses are the most generous, but some real money online casinos offer high match percentages and reload bonuses as part of VIP or loyalty programmes. Here's the best casino bonuses you can claim in NZ:

Welcome bonus
Welcome bonus

Most welcome bonuses require an initial deposit, but some casinos may award no deposit bonuses, no wagering offers and cashback. We usually see a match percentage up to a specific amount and/or free spins, such as Wildz’s 100% up to $1,000 and 200 free spins bonus. The best welcome bonuses have validity periods of 30 days (or more) and 35x wagering requirements to give you the best shot at fulfilling the T&Cs. 

Get welcome bonuses
Free spins bonus
Free spins

Slot buffs should look for free spins promos, as they provide bonus spins on specific slot games or a casino’s entire pokies library. After funding your account, you will either automatically receive free spins or be required to input a bonus code to claim. You may also be awarded free spins at a no deposit bonus casino, allowing you to gamble risk-free and still be in with the chance of winning real money. 

Get free spins
No deposit bonus
No deposit bonus casino

The highly sought-after no deposit bonus is a rare find as the casino stands a lot to lose. While you don’t have to put your own money on the line, no deposit bonuses are often subject to strict T&Cs to minimise the casino’s losses. You’ll find wagering requirements up to 200x and average max win limits of $20. Still, they provide a solid way to explore a new site and try games without risking your bankroll. 

Get no deposit bonuses
No deposit free spins

If you want to play online pokies without making a financial commitment, no deposit free spins are the perfect way to get started. As they are restricted to specific slot games and help casinos promote certain titles, they are more common than no deposit cash bonuses. Once you’ve cleared the T&Cs, you can use your winnings to explore the rest of the casino’s game library or withdraw your funds as cash. 

Get no deposit free spins
High roller casinos card
High roller/VIP bonus

High roller casino bonuses are designed for big spenders. They award cashback or higher match percentages on large deposits, often up to $4,000 or more. You can usually claim a high roller bonus through a VIP programme, where you accumulate points and advance the levels to land bigger bonuses and exclusive perks. Some sites like Lucky Spins, offer high roller bonuses as part of ongoing promotions. 

Get high roller bonuses
Live dealer bonus

Live casino bonus

This bonus is only eligible on live dealer games and gameshows like Crazy Time and Sweet Bonanza Candyland. As most live casino games are expensive to produce and have high RTPs of up to 99%, bonuses tend to have higher minimum deposits ($50+) than other casino promos. However, many come with low 15x wagering requirements, like Rizk’s 100% up to $3,500 live dealer bonus, making it easier to meet rollover conditions. 

No wagering bonus card
No wagering bonus

While you may be required to deposit real money to claim a no wagering bonus, any cash you win is yours to keep – no strings attached! This is a sweet deal but most casinos cap winnings at $100 and limit the game selection to prevent players from using the bonus strategically across various games. If you want greater flexibility at a reduced risk, opt for low wagering casino bonuses with requirements of 5-25x. 

Get no wager bonuses
Crypto casino bonus

Some gambling sites only accept crypto payments and reward NZ players depositing with Bitcoin and other digital currencies. For instance, Mirax Casino offers a 325% up to 5 BTC welcome offer plus 150 free spins – one of the best crypto bonuses around. Some operators may also offer a crypto casino no deposit bonus, but like standard no deposit promotions, these are hard to come by in New Zealand. 

Get Bitcoin bonuses
Mobile bonus

Mobile casino bonus

You can enjoy the same online casino bonuses, including deposit matches, free spins, no deposit bonuses and ongoing promos, from your smartphone or tablet. Many NZ mobile casinos even offer exclusive bonuses you can only get by playing via the dedicated casino app. Mobile casinos provide additional advantages, such as one-tap payments and enhanced security features like face and touch login.

Match deposit bonus
Match deposit bonus

Match deposit bonuses are a type of minimum deposit offer available to new and existing players. It’s one of the best online casino bonuses, as it matches your deposit up to a specific percentage. For example, Spin Casino has a 100% match bonus of up to $400 on your first deposit, meaning you’d get $800 to play with if you maxed the deposit value. 

First deposit bonus

As the name suggests, a first deposit casino bonus is awarded after you’ve signed up and funded your account for the first time. We commonly see these offered as a match deposit bonus, but some NZ online casinos may reward cashback or free spins to get you started. These also carry wagering requirements, minimum deposits and game restrictions. 

Online casino bonuses explained

A casino bonus is a promotion offered to new and existing players. Depending on the type of bonus, you will receive rewards like free spins, free cash, cashback and bonus credits.  

Most casino bonuses are expressed as a percentage of your deposit, which usually ranges between 50% and 200%. For instance, a 100% deposit match bonus means if you deposit $100, you receive an additional $100 in bonus funds. 

Many online casinos also include an ‘up to’ as part of the offer, for instance 100% up to $1,000. This means that if you deposit less than the full amount, you’ll only receive 100% of the amount you deposited, so if you deposit $20, you get $20 extra from the casino.  

How to claim an online casino bonus

Now you’re familiar with the different types of online casino bonuses. Here’s a simple guide on how to claim at an NZ online casino:

  1. Research the best NZ casinos

    Find reputable online casinos in New Zealand with transparent T&Cs. Top-rated sites, such as Jackpot City and Spin Casino, are great sign-up bonus casinos, giving you 60 days to meet the T&Cs. 

  2. Read the casino's T&Cs

    Before depositing real money, carefully read the T&Cs to ensure the conditions are acceptable and give you a fair chance at withdrawing your winnings. 

  3. Deposit real money or sign up

    Register an account and, if necessary, make a qualifying deposit to activate the offer. Remember, some real money casinos also require a bonus code. 

  4. Meet the playthrough requirements

    Play games that count towards the wagering requirements to give you the best chance at withdrawing your winnings before the bonus expires. 

  5. Withdraw your winnings

    This is entirely optional. After meeting the requirements, you can cash out your winnings or use them to continue playing. 

Use our bonus wagering tool to calculate your offer

Wagering requirements tell you how much of your deposit and/or bonus funds you must bet before withdrawing your winnings.  

If you deposited $100 on Jackpot City’s 100% up to $1,600 bonus, you’d need to wager $3,500 ($100 x 35), as the offer has 35x playthrough conditions. However, that’s if you’re playing games that contribute 100%. Suppose you play table games which contribute 8%. You’d need to wager $43,750 ($100 x 35 ÷ 0.08). That’s why casino games with 100% weighting give you the best chance at clearing the requirements.  

Use our bonus bet calculator to find out how much you’d need to wager to withdraw any winnings at your chosen casino:

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💡 Look for bonuses with low rollover terms (10-30x) and stick to games that contribute 100% towards wagering to maximise your payout potential and improve your chances of withdrawing bonus winnings.

Casino bonuses – terms & conditions explained

Before claiming a casino bonus, it’s essential that you read through the T&Cs. These rules determine the conditions you must meet before withdrawing any bonus winnings. Here are the standard requirements most casinos attach to bonuses: 

  • This refers to the number of times you must bet bonus funds before withdrawing them from your casino account. Winning and losing betting rounds count toward the rollover requirements. 

    Most casinos have a 30x to 50x wagering requirement, which is in line with the industry standard, while anything over 50x is considered high. There are also low wagering bonus casinos, with requirements under 35x which can increase your chances of cashing out sooner. 

New casino bonuses for NZ players

New online casinos usually offer more competitive bonuses than established sites to encourage players to sign up and become a recognised brand. For example, Casino Days (launched in 2020) awards 100% up to $1,000 and 100 free spins, compared to Ruby Fortune (established in 2003), which offers 100% up to $750. 

You’ll likely find rewarding promotions, too, with free spins, match deposits, cashback, refer-a-friend bonuses and exclusive offers tailored to high rollers or loyal players. Here’s a quick overview of how bonuses at new online casinos compare to offers at established gambling sites: 

New casino bonusesEstablished casino bonuses
✅ Higher bonus amounts and larger welcome packages across multiple deposits✅ Trusted online casino promotions with clear T&Cs
✅ Offer gamified promotions such as level-ups and progress bars that unlock bonuses✅ Usually offer higher-value loyalty programmes with luxury benefits like event invites and sports cars
✅ Lower wagering requirements to entice new sign-ups✅ Support more payment methods, providing greater flexibility for deposits and withdrawals
✅ Greater range of promotions, including cashback, birthday bonuses, refer-a-friend offers and more✅ Longer validity periods, with sites like Jackpot City giving you 60 days to meet the T&Cs
❌ Unproven track record, so few player reviews to verify the experience❌ Some sites impose high wagering requirements of over 50x
❌ May have shorter validity periods due to being more generous❌ Rarely offer certain types of bonuses such as no deposit and cashback

Casino bonuses for existing players

The best sites in New Zealand offer bonuses to loyal online casino players, including reload offers, loyalty rewards and tailored promotions based on your gaming preferences. Here are the best casino bonuses for existing players: 

  • Reload bonuses: Returning players who deposit real money can enjoy this casino online bonus. Typically, these are matched deposit offers up to 100%, but we’ve seen some casinos triple your deposit value. 

  • Referral bonuses: You’ll unlock this bonus by successfully inviting friends and family to register and deposit at a casino site. The reward is usually fixed, such as 50 free spins or $20 per sign-up. 

  • Cashback: Some NZ casinos may award cashback up to a specific percentage e.g. 20% on losses. We’re seeing this offered more in 2025, and it provides an excellent way for you to recoup some funds. 

  • Loyalty programmes: Top online casinos provide tailored promotions as part of loyalty or VIP programmes. The rewards are usually scaled and unlocked depending on how many points you’ve earned by placing regular wagers on games. Besides bonuses, you get additional perks, such as VIP event access, instant cash prizes and faster withdrawals. 

Our top casino bonus offers in NZ

Our tips on how to take advantage of online casino bonuses

Follow these expert tips on how to get the most benefit out of a casino bonus and distinguish the good the ones from the bad: 

  • Look for fair playthrough requirements: The industry standard is 35x, so anything within this range or lower provides excellent value. Bonuses with wagering requirements of 50x and higher may make it difficult to withdraw any associated winnings. 

  • Play high RTP pokies: Slot games usually contribute 100% towards wagering, meaning you won’t need to bet as much as your bonus funds to meet the T&Cs. High RTP slots also provide better long-term returns, while low RTP games will eat through your funds faster. 

  • Maximise your deposit: Most bonuses scale with your deposit, so depositing more will increase the bonus money you receive. However, only do this if you can afford to. 

  • Be aware of max win caps: Choose bonuses with high maximum win limits to enjoy more of your winnings. Some offers, particularly no deposit promos, have limits of $20, meaning even if you won $100, you won’t be able to withdraw more than $20. 

  • Check the expiry time: Most online casinos give you 7-30 days to use your bonus funds. Thirty is better than seven, as you get more time to meet the T&Cs. 

Peace Nwankpa
Peace Nwankpa
Verified expert

‘Before claiming a bonus in an online casino, I always check the T&Cs. This helps me avoid surprises with time limits or game exclusions that could impede redeeming the bonus money. Opting for a casino bonus with more favourable requirements also helps manage my bankroll and increase my chances of getting an actual payout.’ 

How we rate casino bonuses

We have a thorough review process at OCNZ and only recommend an online casino that meets our extensive criteria. Here’s what we check when rating casino bonuses:

Casino bonus FAQs

Peace Nwankpa
Peace Nwankpa
Verified expert
NZ casino reviewer

Peace has over half a decade of experience in the industry, specialising in providing helpful reviews to aid readers in choosing the best bonus casinos. Her process includes hands-on testing of the casino’s features, bonuses, site user-friendliness and more. She also refers to sites like Trustpilot and Reddit to document the accounts of real players.