Best Sports Betting Bonus Offers for Sep 2025

The sports betting market continues to expand more and more by the month, which means players are inundated with betting bonuses to choose from, especially if you are completely new to online sports betting. Whichever sign up offer you are searching for, OddsPortal has a long list for you to choose from, ranging from free bets, cashback, matched deposits, bet and get offers, and more.

By registering with our recommended online bookmakers, you are guaranteed to receive your sports betting bonus, provided you use our offers to sign up and register for the first time. All you need to do is follow the betting offers for new customers we have supplied on this page, and then follow the instructions provided by the bookmaker to claim your betting bonus.

Apart from a select few bookmakers offers which might be tailored for significant sporting events and only eligible for a specific sport, you can use your betting bonuses for odds on football, tennis, american football, boxing, basketball, or any other sports that you like.

What Are Betting Bonuses?

A betting bonus is funds you are rewarded, usually, for registering with a new bookmaker, but they are however not withdrawable cash but something that you can only use to place bets. Claiming sports betting offers typically entails finding an offer that you like with a bookmaker you haven’t registered with before, signing up as a new player, meeting the qualifying requirements for your new customer offer, before you are then awarded the amount specified in the welcome offer.

Sportsbook bonus bets aren’t always for new players though, with existing players also able to claim offers too, sometimes on weekly occasions with certain sites. Quite often you will see betting bonuses available if you wager a certain amount or more each week.

How to Decide The Best Betting Bonus For You

Deciding which betting promotion is best for you will depend on the type of offer you are looking for, how much you want to stake, and plenty of other factors. If you are somebody looking to deposit either nothing or as little as possible to secure betting offers with OddsPortal, then you will most likely want to find no deposit bonuses or a bet and get bonus.

Alternatively, somebody looking to stake big might be more interested in a cashback bonus, or deposit match bonus which matches the cash amount you decide to add to your new account.

We suggest that you browse through all of the suggested bonus offers at the top of this page and, provided you are a new player with the recommended bookmaker you are interested in, click on our claim button, register and meet the qualifying requirements of that welcome offer.

How To Get Your Sportsbook Promo

Each bonus you decide to claim will be different depending on the bookie you decide to sign up with, but there are steps that will cover each and every betting site listed below:

1. Click on the “CLAIM BONUS” button for your preferred bookmaker from the recommended betting bonuses at the top of this page
2. Sign up by entering details like your name, address, email address, and any other required information by the bookmaker
3. Either be awarded your betting bonus if it was a no deposit offer, or make the minimum deposit required as laid out in the promotion
4. Place a bet at the minimum required odds and with the minimum amount of selections applied
5. Receive your bonus funds within the timeframe specified by the bookmaker thanks to signing up with OddsPortal!

How to Use a Sportsbook Promo Code

Using a sportsbook promo code is simple, you just need to make sure that you enter the necessary letters, numbers, or both that have been provided by the operator or us. The promo code is typically entered when making a deposit or during the registration process, so look out for the prompt from the betting site to enter one if you know that you need to when claiming the promotion.

Who Can Claim a Sportsbook Bonus?

In most cases, a sportsbook bonus is only able to be claimed by new players, and that is true for the offers available throughout this page.

Unless the promotion explicitly states how it can be claimed by both new and existing users, you will need to be a new player wit hthe suggested sportsbook to claim the bonus.

Do I Enter a Sportsbook Promo Code?

Us, or the online bookmaker, will state in the terms and conditions of the offer if a promo code is required to claim your bonus funds. It will be as simple as entering a code which includes letters, numbers, or both which are potentially related to the promotion during the deposit or sign up process.

Look out for promo codes in the terms and conditions to see if the new betting offer you are claiming requires one to earn your bonus funds.

How Many Times Can I Use The Same Bonus Code?

This will largely depend on the promotion and the sports betting bonus code that you are claiming. In some cases, the terms and conditions may state that a bonus code can be used on several occasions, but this is usually quite unlikely.

We always recommend you are familiar with the terms and conditions of any sports betting offer before you claim it to know exactly where you stand, and this is definitely the case when it comes to using a bonus code.

How Do Sportsbook Bonuses Work?

Now you have claimed your sports betting bonus, you will undoubtedly be eager to use it on sporting events that are on currently. But do you know how to use your betting bonuses? Depending on how the bonus funds from the offer have been allocated in your account and the sign up offer you decided to claim, you will be able to use your bonus on one specific sport with a specific bet type, or on any sports that you want.

If you have chosen to claim an offer which specifies you can only use your bonus bets for football accumulators or bet builders for example, then that will be what you are able to bet on. If you are just claiming betting offers for any sport, then you will just need to add what you want to place a bet on to your betslip, and then choose your bonus for that bet.

For any winnings that you receive from bets placed with bonus funds, you will not receive your stake back as cash, unlike if you placed a bet with your deposited money. Also depending on which welcome offer you decided to claim with OddsPortal, you will have a set of funds added to your new account to use freely in how many installments you choose or it could be as 3 set amounts of bonus bets, which may influence how you bet with them.

Once redeemed, your funds courtesy of the betting site will have an expiry date so make sure that they are used before that date is reached and they are no longer available to be used.

Are Betting Bonuses a Sports Betting Sign Up Offer?

The sports betting offers that we supply on this page are reserved for those registering as a new player only, and they fit into the sign up offers category. The reason for this is because only those of you who are creating an account with our recommended online betting sites can claim them, with such lucrative promotions only able to be claimed once.

Depending on where you are located, you will be presented with numerous sign up offers that you can claim, but they are all eligble for new players only. This means that if you have already registered with our suggested betting sites, you will not be eligible for any of those select sign up offers.

There are several different betting offers that you are able to claim under the promotions sections of the online betting sites we recommend, but you won't be able to find them on this page.

New Sports Betting Sign Up Offers 2025

All of the betting bonuses that we recommend are updated offers for 2025, meaning that you won't find any promotions that are out of date or no longer accessible. We always want you to have the best betting deals and sign up with bookmakers to claim a large chunk of bonus funds for you to use on your preferred sports.

It depends on which bookmakers you decide to register with through OddsPortal, because some choose to change their welcome promotion quite often, while others will offer a continuation of the same offer for a longer period of time, especially if there are no significant sporting events upcoming.

We always look out for our players and ensure we are providing you with the best gambling site offers with each of the online bookmakers that we have available on our platform. In some cases, we will even do our best to offer you exclusive promotions that see you earn bigger betting offers than you can find at other sites or even with the bookmaker's standard offer.

Keep an eye on this bonus offers page and we will update it regularly to always show you the latest free betting offers for 2025.

Can I Get A New Promo As An Existing Sportsbook User?

All of the promotions available on this page are restricted to new users only, meaning if you are already signed up with any of the sites, you will not be able to claim any of their current offers.

The Different Types of Sportsbook Promos

Sports betting offers can come in many different forms, and here at OddsPortal we have split them up into specific pages so you can find exactly the type of offer you are looking for. In order to claim any of the promotions we recommend, you might be required to make a deposit or place a bet, but there are certain cases where you can even be rewarded with no deposit bonus bets.

Check out some of the types of betting bonuses you can expect to see with bookmakers below:

Welcome Offers

A welcome offer is reserved for players registering with a bookmaker for the very first time, and these are the most common type of betting bonus that you will find with OddsPortal. A welcome offer itself can be many things, and any of the betting bonuses listed below, but it is simply available for new players only.

Deposit Bonus

A deposit bonus is a type offer that requires you to make a deposit in order to claim your bonus funds from the bookmaker you have chosen to bet with. There may be specific requirements with a deposit bonus, meaning you might need to deposit a select amount to guarantee you receive the betting bonus available with that chosen bookmaker.

Additionally, a deposit bonus could also refer to a deposit match when registering with a new bookmaker, or even as an existing player. For example, you may receive a 100% match of your first deposit in betting bonuses when you sign up, which would be considered a deposit bonus.

No Deposit Bonus Bets

A no deposit bonus is what players would love to find with every bookmaker because it would mean you get to place bets on sports without having to spend any money first. However, no deposit bonus bets are quite rare among sports betting sites, with them often preferring for players to make a deposit first.

Bet and Get Bonus

Bet and get offers are the most common type of bonus that you will find with bookmakers, and they are exactly what they say they are. When you meet the qualifying bet at the required odds and with the specific amount of selections necessary as stated in the terms and conditions, you will then be granted your betting bonus with the selected bookmaker.

A bet and get bonus is something that will sometimes be available to existing players too, for example matching your bet on a specific game in bonus funds once you opt-in to the promotion.

In the UK at the moment you will find bet 10 get 30 offers are quite commonly available, while in the US you will typically see bet 5 get 150, or sometimes more at the time of big sporting events.

Betting App Bonuses

To encourage you to join through their app and to ensure you download it to your phone, some online bookmakers can offer ehanced promotions for new players that are signing up with the app. Similarly, they can offer you other incentives when already registered to download the app, if you haven't done so already.

To discover some of those exclusive betting app bonuses that you might be able to claim, you can check out our betting apps page today and find out which sites in particular have an app and any new offers they might have available.

Cashback Bonus

Cashback bonuses are when you are rewarded with a percentage of your bet in bonus funds if you lose. This type of betting bonus can be for new players or existing users, meaning you will either win cash if the outcome of your bet is a win, or receive a percentage of your stake as cashback either in real money or as bonus funds.

Crypto Betting Bonuses

With OddsPortal, you are now able to claim specific sign up offers for crypto betting sites, if you are somebody that prefers to place bets using digital currency. We offer you the opportunity to sign up with various crypto bookmakers, including Cloudbet, BC.Game, Coins.Game, and more.

Crypto betting bonuses will typically vary in comparison to standard offers at online bookmakers who use standard currency only, but it can sometimes be even more lucrative to claim this type of offer with much bigger bonuses available.

Best Sportsbook Offers For Existing Players

Bonus bets can also be granted for existing players because bookmakers will be keen to encourage players to keep revisiting and playing at their sites or betting apps. For existing players, sportsbook offers can be rewarded in numerous ways. An offer for all players could see them be rewarded with a matched bonus for a bet on a specific day or days, while in some cases bookmakers will gift players with funds in their account just for loyalty purposes or regularly placing bets.

For example, bet365 is well known for allowing players to claim bet credits as a loyalty bonus for regularly playing on the bet365 website or bet365 app. Promotions for existing players don’t always require players to stake real money though, with certain operators sometimes granting bonus funds to players for specific events or allowing them to participate in free to play games throughout the week to secure some potential betting funds. Alternatively, betting bonuses for existing players could be on a weekly basis for placing a certain amount of accumulators, or bets on a specific sport.

Some of the best sportsbook offers for existing players to look out for and claim include:

In-Play Betting With Sports Betting Offers

If you are somebody that likes in-play betting in particular, you might be interested in whether or not you are able to use sports betting offers to bet on in-play events as well as pre-match offerings. Well, fortunately for you, you can!

Provided there are no stipulations in the terms and conditions, of which we refer to in the next section, you will be able to use any betting offers you claim with us to use on live events too.

Through the live odds section on OddsPortal, you can explore all of the current in-play matches across various sports and continue to get the best prices during matches thanks to our tool specially designed to compare odds from all of our suggested online betting sites.

Common Sportsbook Promo Terms and Conditions

There are a few things to be aware of when claiming a betting bonus, especially if it is a bookmaker you are registering with for the first time, simply because there will be specific requirements you need to meet. In some cases bookmakers will make clear what the requirements are to claim a betting offer, but others can put details in the fine print that could easily be ignored.

Just for clarification on what is required, always make sure you read that fine print to get an understanding of what the offer entails and what you need to do to secure a betting bonus with that given bookmaker. We always recommend that you check the terms and conditions when claiming any betting bonus to ensure that you are aware of what is required of you when you sign up, and to make sure that you don’t place any bets which will not contribute towards claiming your bonus bets.

Even with promotions for existing players, you need to check the terms and conditions to ensure that bets you are placing will qualify when it comes to claiming your betting. Similarly, you will probably be required to opt-in to claim a sports betting promotion as an existing player. Don’t just automatically assume you will be rewarded, first make sure whether you need to opt-in before placing any bets.

Some of the key factors to consider in the terms and conditions are:

• Minimum deposit
• Minimum odds
• Accepted payment methods
• Betting bonus expiry dates

Do Sportsbook Bonuses Expire?

It is very common for sportsbook bonuses to expire, so it is important that you look in the terms and conditions before registering with our recommended betting sites to see how long the bonus will stay in your account.

If you are looking to use your sportsbook bonus for an event that doesn't have odds available just yet, you may want to wait to ensure that your sportsbook bonus does not expire.

Which Sporting Events Can I Use Betting Sign Up Offers On?

The sports or particular events that you can bet on using bonus funds all depends on the terms and conditions of the sign up offers that you claim through OddsPortal. For example, there might be certain betting bonuses made available around significant events like the World Cup, the return of a new Premier League season, or at Wimbledon.

Hopefully, the betting offers that you decide to claim are either available for any sporting events, or for the specific event that we have talked about above, with those types of promotions typically only being made available when a highly significant event is either on or upcoming.

Always ensure you check the terms and conditions of the bonus offers we recommend, to avoid there being a situation where you are unable to use it on your preferred sport or particular competition. But provided it has no restrictions, how you use the betting offers we recommend is entirely up to you!

We strongly recommend you use OddsPortal for your betting though, with all different sporting events and competitions able to be found with standings, results, and most importantly the best odds always available for all of them.

It doesn't matter whether you want to bet on basketball odds, tennis odds, cricket odds, or something else, our odds comparison engine ensures you see the best odds for several different markets for each of them.

Best Betting Offers for Football Fans

Traditionally, many of our offers available on this page will be eligible for football, and some will even be specifically tailored to markets for that sport only.

Furthermore, football betting offers are particularly enhanced and more popular with online betting sites at the time of high-profile tournaments like the World Cup or Euros, while they are also much more commonly made specifically for football betting at the time of a new season in the Premier League for example.

Quite often, football betting promotions will have mentioning in the terms and conditions that your free bets are eligible for bet builder, accumulators, or certain types of bets only.

So make sure you take a look at our list of betting offers in your location and see which ones have been designed precisely for use on one of the most popular sports in the world, and especially in Europe.

Betting Tools to Use with Sign Up Offers

Now you are registered with any of our suggested online bookmakers and you have claimed the huge welcome offer that they have for new players, you now want to turn that into real cash that you can withdraw and boost your bank balance!

On OddsPortal, we offer several tools to help inform your betting decisions and give you a better chance of beating the bookmakers by utilising the stats we show you to make more confident and analytically supported bets.

First of all, for those of you that are extremely new to sports betting, you may want to check our bet calculator to understand the returns on your proposed bets or even how an each way bet would return. Fiddling around with the bet calculator can improve your knowhow significantly when it comes to placing bets and what the profit will be at the end of it.

On top of that, we have numerous other tools that might be useful when it comes to using your bonus funds like sure bets, dropping odds, value bets, and more.