How to Claim Bonus Codes for Slots

What are Bonus Codes in Slots?

Slot bonus codes are promotional codes provided by online casino or slot sites that you can use to unlock exclusive bonuses. The idea is simple: enter a code, get a reward. Bonus codes are often used to:

• Attract new players
• Reward loyal users
• Promote new games or features

Types of Slot Bonuses you can claim

Below are the most common types of slot bonus codes you'll encounter:

• Free Spins Slot Codes: These offer a set number of spins on a particular slot game. You keep what you win, subject to wagering conditions. There are, of course, no wagering spins which come with no play-through requirements whatsoever (i.e. what you win is yours to keep!).
• No Deposit Slot Bonus Codes: Great for new players, these don’t require any real-money deposit. Just enter the code and start spinning.
• Deposit Match Slot Codes: These boost your initial deposit. For example, a 100% match bonus code means if you deposit £100, you'll get another £100 to play with.
• Reload Slot Bonus Codes: Reserved for loyal players, these work similarly to deposit bonuses but are used after your first deposit.
• Cashback Slot Bonus Codes: Get a percentage of your losses back over a set period. Useful for high-volume or frequent players.

Other Codes

No wagering offers are a favourite among slots players. Unlike traditional offers that often come with hefty wagering requirements (like 35x or 50x), wager free offers let you keep what you win outright, no strings attached.

What are they?

These are slot bonus codes that unlock a set number of spins on selected slots, where any winnings are paid as real cash, not bonus funds. That means you can withdraw your winnings immediately or use them to continue playing without meeting any rollover conditions.

Why are they so popular?

• No wagering means lower risk
• Winnings are cash, not bonus credit
• More transparent and player-friendly terms

Things to look out for:

• Minimum deposit still required (e.g. £10)
• Slots Bonus may be tied to specific slots (e.g., Starburst or Book of Dead)
• There may be a max win cap (e.g. £50)
• Expiry (e.g. offer may be valid for 24 hours)

Want a slot bonus with no wagering requirements? Here are a few selected offers that have bonus codes:

offer

100 Free Spins on Big Bass Splash

First deposit only. Min. deposit £20. Min Wager £20 on slots. Max 100 Free Spins. Max one claim. Spins credited within 7 days after deposit. Spins valid on Big Bass Splash. Spin value 10p. Full T&Cs apply. 18+

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offer

Bet £20 Get 100 Free Spins

New customers only. Deposit and wager £20 on Midnite Casino to get 100 Free Spins at 10p per spin, valid for 7 days on selected games. T&Cs apply. 18+ GambleAware.org

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offer

Get 20 free spins when you deposit £10

Full T&Cs apply. New successfully registered customers only. Opt in using the promo code ‘bigbassfreespins' and make a minimum deposit of £10. Deposit a minimum of £10 and receive 20 free spins on Big Bass Splash. The 20 Free spins will be added by 23:59 the day after qualification. 18+

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offer

Wager £10 Get 20 Free Spins on Big Bass Splash

New customers only. Promo code 'bigbasspins' and make min. deposit of £10. Receive 20 free spins on Big Bass Splash by 23:59 day after qualification. T&Cs apply, GambleAware.org.

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offer

Get up to 200 Free Spins - No Wagering on Winnings!

New customers only. Up to 200 spins over 4 day period from first deposit & spend of £10. Max 50 spins each day on Fishin' BIGGER Pots of Gold at 10p per spin for 4 consecutive days. Deposit & spend £10 each day for 50 spins. Spins credited upon spend of £10 each day. 18+ Full T&Cs apply.

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offer

Stake £10 on Casino, Get 50 Free Spins

New Customers Only. Stake £10+ across any QuinnCasino games, within 7 days of registration. Get 50 Free Spins (£0.10p spin value) on “Big Bass Splash”, valid for 7 days. Free Spins winnings are real cash, max. £100. UK 18+ T&Cs Apply. Gamble Responsibly. GambleAware.org

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offer

Up to 100 Wager Free Spins on Big Bass Splash

$/€/£10 Min. Deposit and Wager. 10 Free Spins will be allocated for every $/€/£10 increment deposited. Bonus valid 48 hours from receipt. Max conversion: $/€/£100. Withdrawal requests void all active/pending bonuses. Excludes Skrill and Neteller deposits. Offer limited to new players making their first deposit at the casino limited to one offer per household.

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For more spins with no wagering offers, head to OLBG’s dedicated page:

ALSO READ

Best Free Spins No Wagering Offers 2025

Where to find Bonus Codes for Slots

Slot bonus codes can be found in several places:

• Site Email Newsletters: Many casino or slot sites send exclusive codes to registered users.
• Review Websites: Trusted review sites, such as OLBG, often share verified codes.
• Promotions Pages: Check the site's promo tab or bonuses section.
• In-Game Promotions: Some slot games display time-limited codes in-game.
• Social Media & Forums: Follow your favourite site or slot streamer.

How to Claim Slot Bonus Codes: Step-by-Step

Claiming bonus codes for slots is usually simple. Here's a quick guide:

Step 1: Sign Up or Log In

Go to the online slot site and either register or sign in to your account.

Step 2: Navigate to the Promotions or Cashier Page

Most slot sites have a specific area where you enter your bonus code. In many cases, these are pre-filled.

Step 3: Enter the Bonus Code

Carefully input the code. Typos can invalidate it, so double-check.

Step 4: Meet Any Requirements

Some bonuses require a minimum deposit using a specific casino payment method (i.e. debit card or PayPal) or game play to activate.

Step 5: Start Playing

Once the code is accepted, your bonus is ready to use!

Common Mistakes to Avoid

Even experienced players make errors when using bonus codes. Here are a few to steer clear of:

• Entering Expired Codes: Always check the code's validity.
• Not Reading the Terms & Conditions: Wagering requirements, max win limits, and eligible games matter.
• Using Multiple Codes at Once: Some sites don’t allow stacking of codes.
• Missing the Code Field: If you miss the entry point during registration or deposit, the bonus may not apply.

Top Tips for Using Slot Bonus Codes Effectively

• Choose Low Wagering Requirements: The lower the wagering, the better your chance of cashing out.
• Stick to Eligible Games: Bonuses often apply to specific games, with high RTP slots, progressive jackpots slots and high volatility slot games often excluded. 
• Set a Budget: Don’t chase losses with or without a bonus.
• Watch the Clock: Some bonuses expire within 24 to 72 hours.

Slot Games that often feature Bonus Codes

Below, you’ll discover some slots where bonus codes are frequently tied in. You’ll find a synopsis of each game as well as a recommended, trusted and licensed UK slot site for each option:

1. Book of Dead (Play’n GO)

Book of Dead Slot

Rating: 5/5

• RTP: 96.21%
• Max Win: 5,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 14 January 2016

Play’n GO’s Book of Dead is a classic choice. With 5 reels and 10 paylines, this high volatility slot has a 96.21% RTP rate and can be played from 10p per spin. You get to explore Ancient Egypt with Rich Wilde, where the Bonus feature begins with 10 spins and a special expanding symbol. With unlimited retriggers, there is the potential for 5,000 x bet max wins on each free spin.

2. Big Bass Bonanza (Pragmatic Play)

Big Bass Bonanza Slot

Rating: 4.2/5

• RTP: 96.71%
• Max Win: 2,100x
• Volatility: Medium to High
• Stakes: 10p to £5
• Release Date: 3 December 2020

Pragmatic Play’s Big Bass Bonanza is a 5 reel, 10 payline, medium to high volatility slot with a 96.71% RTP. This fishing-themed favourite is all about the bonus feature, where Fisherman Wilds collect Fish Money symbols. Collect Fisherman Wilds for retriggers and Fish Money multipliers of up to 10x. With 2,100 x bet max wins, it’s arguably the most popular slot game in the UK right now.

3. Starburst (NetEnt)

Starburst Slot

Rating: 5/5

• RTP: 96.09%
• Max Win: 500x
• Volatility: Low
• Stakes: 10p to £5
• Release Date: 20 June 2012

Still one of the most common bonus destinations, NetEnt’s Starburst is a timeless 5 reel, 10 payline slot with low volatility and a 96.09% RTP rate. Its highlight is expanding Wilds on reels 2, 3 and 4 that trigger respins with fully wild reels. Simple and mesmerising, it offers 500 x bet max win potential on each spin/respin.

4. Big Bass Splash (Pragmatic Play)

Big Bass Splash Slot

Rating: 4/5

• RTP: 96.71%
• Max Win: 5,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 23 June 2022

Often included in welcome offers, Pragmatic Play’s Big Bass Splash is a 5 reel, 10 payline fishing slot with a high 96.71% RTP rate. With a focus on the Bonus feature, there are random modifiers in the base game to help you trigger it. Once you’re in, up to 5 modifiers (extra fish money, wilds, multipliers) enhance the experience. With Fisherman Wilds collecting Fish Money symbols as well as retriggers and multipliers up to 10x, the max win potential is 5,000 x bet.

Final Thoughts

Slot bonus codes offer an easy and exciting way to boost your balance or try new games risk-free. Whether it's a spins offers or a matched deposit, claiming these codes is straightforward once you know where to look and how to use them. Always read the terms and conditions, set limits, and enjoy the fun responsibly.