Looking for the best Free Casino and Sportsbook Promo Codes for Existing Customers? You are on the right page. Here, you’ll discover different types of promo codes granting attractive bonuses to existing players across the top online casinos and sportsbooks. Still, in this guide, you’ll find out how promo codes work and where to find them.
1. The Best Promo Codes in 2025
Before discussing the best promo codes, it is important to understand them. They are mostly a string of letters, numbers, or alphanumeric characters that a platform uses to identify the specific promotion you wish to claim on their website. Don’t fret when you find other terms like bonus codes, referral codes, voucher codes, or coupon codes, as they mean the same thing. So, what bonuses can players claim with the best promo codes? Let’s take a look:
1.1 No Deposit Bonus Codes
No deposit bonus codes let you claim a bonus at a sportsbook or casino without a deposit. In most cases, they are primarily tailored for new players to entice them and give them an option of trying out the platform without risking anything. However, you can still find a few no deposit bonus codes for existing players. But let’s put it out there that they are not too relevant these days, whether for new or existing players. Most gaming platforms now use a different model, where players can enjoy refunds and free bets instead of a no deposit bonus. That’s not to say you will not find a few sites still offering these bonuses. Keep within our page as we regularly update the latest no deposit bonuses and exclusive promo codes to use.
1.2 Sport Promo Codes for New Customers
The best promo codes also include new customers, where they can use them to leverage welcome bonuses. To activate them, new customers must sign up with the promo codes on this page and ensure you input them correctly under the ‘promo/bonus/voucher/referral code’ fields. These promo codes activate different types of bonuses for new players, the common ones being the following:
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Deposit match: The most common sportsbook promo code deal for new customers is a deposit match bonus on the first deposit. The sportsbook matches your qualifying deposit by a set percentage, usually 50% to 100%. In other cases, the sportsbook unlocks a set bonus once you deposit and bet. For example, Bet $10, Get $30.
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Free bets: Some platforms refer to them as ‘no sweat’ bets, and are new customer promo code deals offered as a refund when the first bet loses.
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No deposit bonus: As we hinted, new players can also claim a no deposit bonus promo code deal. The only requirement is to input the code, as no deposit is required. However, the bonus value is normally low.
1.3 Sports Bonus Codes for Existing Bettors
Sportsbooks spice things further with bonus codes for existing customers, where you find offers that keep you coming back. The latest promo codes for existing sportsbook players are on our page. We recommend copying and pasting them in the respective fields to ensure you input the correct codes. The following are the common types of bonuses to activate with our free promo codes for existing players:
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Reload bonuses: These are among the common bonuses you can claim. They take the form of deposit match bonuses and activate after depositing the qualifying amount.
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Cashback bonuses: These are rebate offers you receive after losing your bet(s). Sportsbooks calculate the net losses and offer a certain percentage, mostly up to 20%, as cashback.
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Special event bonuses: Sportsbooks do not let popular and special events pass by. It’s common to find promo code deals for events like Wimbledon, the UEFA Champions League, the US Open, the Super Bowl, the League of Legends (check our League of Legends Betting Tips) etc. For such, you unlock bonuses when you enter the code and correctly predict goals, goal scorers, results, or other prop options.
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Refer a friend: You can offer referrals for your friends to join the sportsbook and receive bonuses once they join, deposit, and probably bet. But they must use your promo code, so the sportsbook knows where to credit the bonus.
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Special offers: Sportsbooks might also have special offers you can claim using exclusive promo codes. They may include time-limited offers, accumulator of the day, odds boosts, daily races, birthdays, etc.
Best Promo Codes for Sports
bet365
Bonus Sports
Bet $5 and Get $150 in Bonus Bets
1XBET
Bonus Sports
Exclusive Bonus 130% up to $145/€130 (or currency equivalent)
Pinnacle
Bonus Sports
JohnnyBet x Pinnacle League
1.4 Casino Promo Code for New Joiners
We also have the best promo codes for first-time casino users like 1x Casino Promo Code. By using the code that we offer you can get an exclusive 1st deposit bonus. Find one casino that interests you and copy the code to use it while registering. This will unlock new player bonuses on the platform, the common ones being the following:
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No deposit bonuses: While rare, they are not impossible to find, especially for newcomers. Some platforms offer a no deposit bonus where you claim with only a promo code. Check out our latest promo codes, including exclusive ones, to activate these bonuses with no deposit required.
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Deposit match: Most new player bonuses at casinos are deposit-matched bonuses. The bonuses will automatically be credited once you enter the promo code and deposit, with most casinos matching the deposit to a set percentage.
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Free spins: Almost every casino has free spins as part of their new player offers. While they might come as standalone offers, they’ll mostly appear attached to the deposit match bonus. In some rare cases, you can claim no deposit free spins, but that would need exclusive codes, which we also provide.
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High roller bonus: New casino players who prefer high-stakes gambling can also find high-roller bonuses to claim. These bonuses require high minimum deposit limits but have massive max bonus value.
1.5 Casino Bonus Codes for Already Registered Users
Now that you have claimed the new player promo code deals, what next? More bonuses await existing customers at the top online casinos. To claim these bonuses, use the free promo codes for existing customers found on our page. The most common bonuses for existing casino users are:
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Exclusive bonuses: Our promo codes may unlock exclusive casino bonuses. We negotiate these bonuses on your behalf, and you cannot activate them without using our promo codes and links. They may include no deposit bonuses or deposit match bonuses.
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Welcome package: While it may be a new player bonus, some casinos are generous enough to extend the bonus to the first few bonuses. Thus, instead of getting a matched bonus on the first deposit purely, existing players can join in and leverage further bonuses on subsequent bonuses, say the next three. The Sportbet One Bonus Code is a good example, as you have an exclusive first deposit bonus while registering in the bookmaker’s platform.
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Reload bonus: Existing players can also leverage reload bonuses offered on specific days or weekends. The idea remains: Enter a promo code and deposit to activate the bonus, which is primarily a percentage match. You can claim bonus cash, free spins, or both.
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Cashback bonus: Each bet does not translate to winnings, and that’s where cashback bonuses come in to give you a soft landing. Some online casinos help you stay afloat by refunding a small percentage of your net losses.
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Game-specific bonus: It’s quite common to find a game-specific bonus that is eligible for existing customers. These are bonuses tailored for specific games, mainly slots, where you can claim free spins if you complete an action like depositing a required amount.
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Referral bonus: Existing players can also claim referral bonuses when they refer new customers to the platform. The bonus may come as a fixed bonus amount or a percentage match from the amount your referral deposits.
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Loyalty program: Most platforms have loyalty programs that seek to reward players with bonuses and other benefits for their loyalty. The program features levels that existing players climb depending on the points earned from playing with real money. A higher level attracts better perks and benefits, including exclusive bonuses, free spins, cashback bonuses, high withdrawal limits, etc.
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Seasonal bonus: A seasonal bonus may pop up occasionally. This type of bonus is unique and time-limited, meaning it comes with exclusive promo codes. Casinos may tailor these bonuses to celebrate anniversaries, birthdays, holidays, product launches, etc.
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Tournaments/missions/races: Our free casino promo codes for existing players also extend to tournaments, missions, and races on the platforms. Tournaments, for example, let you play among other players, while missions require you to achieve specific goals for prizes.
2. How Casino and Sportsbook Promo Codes for Existing Customers Work
By now, you understand what promo codes are. They are unique codes that activate bonuses in a sportsbook or online casino. You’ll find them as strings of letters, numbers, or alphanumeric characters. So, how do they work? It’s simple: enter them as you register for an account if you are a new user. Alternatively, you’ll enter them as you opt into the bonus on the ‘promotions’ page or deposit funds if you are an existing customer.
The focus of Free Casino and Sportsbook Promo Codes for Existing Customers is to unlock bonuses on the platforms. These bonuses may be no deposit free bets, no deposit free spins, deposit match bonuses, reload bonuses, crypto bonuses, time-limited bonuses, VIP bonuses, etc. But there is also the concept of exclusive bonuses. These are bonuses exclusive to us and can only be activated by our promo codes.
But we ask that you carefully check the promo codes since they are distinct for each product and bonus. For example, a promo code used to claim a cashback deal in the sportsbook cannot be used to claim any other sportsbook bonus or in other products like casino and live casino. A good example is the BetWinner Promo Code 2025 as you can get an exclusive sports bonus during your registration.
3. Where to Find the Top Promo Codes for Sportsbooks and Casinos May 2025
To leverage existing player bonus codes, you must know where to find them. The good news is there are several ways to find them. They include:
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Main website: Wondering how to get the best bonus codes for online casinos in May 2025? The first way is through their main websites under the bonus terms. In addition, operators may provide these codes through social media, newsletters, special notifications, and emails.
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Affiliate websites: Another way to find the best promo codes is through affiliate websites like ours. This is a good way to find exclusive promo codes for casino and sportsbook existing players, which are not available directly on the operator’s website. As an example, we can recommend you to register with our BetAndYou code during your registration. You can check all the details in our BetAndYou Review.
4. Free Promo Codes for Existing Customers FAQs
4.1 ❓Can I get promo codes for existing players for free?
All the promo codes we provide for existing players are free. However, we recommend reading the bonus rules to find some stipulations, like the minimum deposits and wagering requirements.
4.2 ❓Where to paste promo codes for existing players to get a bonus?
Existing players can paste their promo codes in the specific bonus field when they opt into the promotion or deposit field when they deposit funds.
4.3 ❓What are the requirements to get a bonus with a free promo code?
Our free bonus codes are only eligible to registered members at the said sportsbook or casino. The other requirements, such as the minimum deposit, wagering requirements, game weightings, and time validity, are found under the bonus rules.
4.4 ❓Which bookmakers and casinos offer the best promo codes for existing users?
Our recommended platforms for Free Casino and Sportsbook Promo Codes for Existing Customers include Bet365, BetWinner, 1xBet, Energy Casino, and Bitstarz.
Free Casino and Sportsbook Promo Codes for Existing Customers
Looking for the best Free Casino and Sportsbook Promo Codes for Existing Customers? You are on the right page. Here, you’ll discover different types of promo codes granting attractive bonuses to existing players across the top online casinos and sportsbooks. Still, in this guide, you’ll find out how promo codes work and where to find them.
Contents
1. The Best Promo Codes in 2025
Before discussing the best promo codes, it is important to understand them. They are mostly a string of letters, numbers, or alphanumeric characters that a platform uses to identify the specific promotion you wish to claim on their website. Don’t fret when you find other terms like bonus codes, referral codes, voucher codes, or coupon codes, as they mean the same thing. So, what bonuses can players claim with the best promo codes? Let’s take a look:
1.1 No Deposit Bonus Codes
No deposit bonus codes let you claim a bonus at a sportsbook or casino without a deposit. In most cases, they are primarily tailored for new players to entice them and give them an option of trying out the platform without risking anything. However, you can still find a few no deposit bonus codes for existing players. But let’s put it out there that they are not too relevant these days, whether for new or existing players. Most gaming platforms now use a different model, where players can enjoy refunds and free bets instead of a no deposit bonus. That’s not to say you will not find a few sites still offering these bonuses. Keep within our page as we regularly update the latest no deposit bonuses and exclusive promo codes to use.
1.2 Sport Promo Codes for New Customers
The best promo codes also include new customers, where they can use them to leverage welcome bonuses. To activate them, new customers must sign up with the promo codes on this page and ensure you input them correctly under the ‘promo/bonus/voucher/referral code’ fields. These promo codes activate different types of bonuses for new players, the common ones being the following:
1.3 Sports Bonus Codes for Existing Bettors
Sportsbooks spice things further with bonus codes for existing customers, where you find offers that keep you coming back. The latest promo codes for existing sportsbook players are on our page. We recommend copying and pasting them in the respective fields to ensure you input the correct codes. The following are the common types of bonuses to activate with our free promo codes for existing players:
Best Promo Codes for Sports
1.4 Casino Promo Code for New Joiners
We also have the best promo codes for first-time casino users like 1x Casino Promo Code. By using the code that we offer you can get an exclusive 1st deposit bonus. Find one casino that interests you and copy the code to use it while registering. This will unlock new player bonuses on the platform, the common ones being the following:
1.5 Casino Bonus Codes for Already Registered Users
Now that you have claimed the new player promo code deals, what next? More bonuses await existing customers at the top online casinos. To claim these bonuses, use the free promo codes for existing customers found on our page. The most common bonuses for existing casino users are:
2. How Casino and Sportsbook Promo Codes for Existing Customers Work
By now, you understand what promo codes are. They are unique codes that activate bonuses in a sportsbook or online casino. You’ll find them as strings of letters, numbers, or alphanumeric characters. So, how do they work? It’s simple: enter them as you register for an account if you are a new user. Alternatively, you’ll enter them as you opt into the bonus on the ‘promotions’ page or deposit funds if you are an existing customer.
The focus of Free Casino and Sportsbook Promo Codes for Existing Customers is to unlock bonuses on the platforms. These bonuses may be no deposit free bets, no deposit free spins, deposit match bonuses, reload bonuses, crypto bonuses, time-limited bonuses, VIP bonuses, etc. But there is also the concept of exclusive bonuses. These are bonuses exclusive to us and can only be activated by our promo codes.
But we ask that you carefully check the promo codes since they are distinct for each product and bonus. For example, a promo code used to claim a cashback deal in the sportsbook cannot be used to claim any other sportsbook bonus or in other products like casino and live casino. A good example is the BetWinner Promo Code 2025 as you can get an exclusive sports bonus during your registration.
3. Where to Find the Top Promo Codes for Sportsbooks and Casinos May 2025
To leverage existing player bonus codes, you must know where to find them. The good news is there are several ways to find them. They include:
4. Free Promo Codes for Existing Customers FAQs
4.1 ❓Can I get promo codes for existing players for free?
All the promo codes we provide for existing players are free. However, we recommend reading the bonus rules to find some stipulations, like the minimum deposits and wagering requirements.
4.2 ❓Where to paste promo codes for existing players to get a bonus?
Existing players can paste their promo codes in the specific bonus field when they opt into the promotion or deposit field when they deposit funds.
4.3 ❓What are the requirements to get a bonus with a free promo code?
Our free bonus codes are only eligible to registered members at the said sportsbook or casino. The other requirements, such as the minimum deposit, wagering requirements, game weightings, and time validity, are found under the bonus rules.
4.4 ❓Which bookmakers and casinos offer the best promo codes for existing users?
Our recommended platforms for Free Casino and Sportsbook Promo Codes for Existing Customers include Bet365, BetWinner, 1xBet, Energy Casino, and Bitstarz.