Best Illinois Sportsbook Promos: Claim $5,550 in Bonuses in May 2026

When you get started with IL sportsbook bonuses, you'll be claiming some of the most lucrative sports betting promos in the industry. 

Check out our table to familiarize yourself with the best sportsbook promos in the Prairie State, or tap a link to get more information, including bonus terms.

Here’s a brief look at the top Illinois sports promos available in May 2026. Review key information, then choose the bonus that best fits your betting style.

Promos play a big part in how we rate each sportsbook. We've looked long and hard at each welcome offer in the Prairie State and identified four of our favorite options that should work for all types of sports bettors.

Illinois sports betting fans can use our BetMGM bonus code SIBONUS50 and unlock a first bet offer worth up to $1,500 in bonus bets. If your initial wager doesn’t hit, BetMGM will refund the full amount in bonus bets, giving you a second chance to win. 

Whether you take a conservative approach or aim for a big payout on a long shot, this promo gives you room to explore one of the top NFL betting sites confidently. This is a great welcome bonus for new bettors and higher stake players alike, so take advantage while the offer is still valid. With the 2026 NFL playoffs approaching, now is a great time to sign up and grab your second-chance bet, courtesy of BetMGM. 

Before you claim the offer, review these important terms and conditions:

• You must be a new user and at least 21 years old.
• A minimum deposit of $10 is required.
• Bonus bets expire seven days after they are issued.
• For bets of $50 or less, you’ll receive one bonus bet equal to your wager amount.
• For bets over $50, you’ll receive five bonus bets, each worth 20% of your initial wager.
• This BetMGM bonus code offer is valid until July 1, 2026.

BetMGM welcome bonus highlights

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Check out our full BetMGM review to learn more about everything BetMGM has to offer in 2026, including one of the top sportsbook referral bonuses.

New bettors testing out Illinois sportsbooks can unlock a valuable welcome offer by using our Caesars Sportsbook promo code SICZRDYW and get in on one of the best NBA betting sites.

All you need to do is deposit and place your first wager to get 10 100% profit boost tokens. As long as your first wager is at least $1, the tokens will be added to your account. This offer is a great way to add value to your early wager and explore Caesars' expansive sports betting markets with extra upside.

Before claiming this Illinois betting promo, keep these terms and conditions in mind:  

• You must be a new user and at least 21 years old.
• Place a qualifying first wager within 30 days to receive the bonus.
• Minimum odds of -10,000 apply.
• Each profit boost token allows a maximum $25 bet and up to $2,500 in additional winnings.
• Profit boost tokens expire 14 days after being awarded.
• This Caesars Sportsbook promo code offer is available until Aug. 18, 2026.

Caesars Sportsbook welcome bonus highlights

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Check out our full Caesars Sportsbook review for a complete rundown on one of the top prop betting sites.

You can get started with the bet365 bonus code and claim one of two promos. One rewards a small qualifying wager with bonus bets, while the other protects a larger first bet if it doesn’t win.

Bet $5, get $150 in bonus bets

Illinois users can unlock $150 in bonus bets by placing a $5 qualifying wager on the bet365 app. This option is geared toward bettors who want to start small but still receive a sizable bonus.

Here are the details for one of the best March Madness betting promos:

• You must be a new bet365 customer and at least 21 years old.
• The promotion is available exclusively through the bet365 app.
• Deposit at least $10 and place a $5 qualifying bet within 30 days of account creation.
• Bonus bets are valid on eligible markets with minimum odds of -500 or greater.
• Bonus bets are non-withdrawable, but you keep any winnings generated from them.
• Bonus bets expire seven days after being credited.
• This Illinois bet365 promotion is valid until June 1, 2026.

$1,000 First Bet Safety Net

Illinois bettors who prefer to make a larger opening wager can choose the $1,000 First Bet Safety Net. If your first real-money bet loses, bet365 refunds your stake in bonus bets, up to $1,000.

Key terms to know:

• You must be a new bet365 customer and at least 21 years old.
• A minimum $10 deposit is required to participate.
• Your first wager must be placed through the bet365 app.
• If your initial bet loses, you’ll receive bonus bets equal to your stake, up to $1,000.
• Bonus bets cannot be withdrawn, but any profits earned from them are yours to keep.
• Bonus bets expire seven days after issuance.

bet365 welcome bonus highlights

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To learn more, make sure to read our bet365 review and see why it ranks as one of the top March Madness betting sites.

As a new DraftKings Illinois user, you have two offers available to you:

Bet $5, Get $100 Instantly in bonus bets

Claiming our top sports betting apps' welcome bonus is a low-commitment way to get started. Place $5 wager and receive $100 in bonus bets win or lose. This DraftKings promo code offer is a straightforward way to begin exploring the platform with additional funds.

Key details to keep in mind:

• This offer is available to new users age 21 and older.
• A minimum $5 deposit and wager are required.
• DraftKings will award bonus bets win or lose after first wager settles.
• Must select Token BEFORE placing min. $5 bet.
• Token expires 6/6/2026.
• No DraftKings promo code is required to claim this offer.
• Bonus bets are non-withdrawable; you retain any winnings but not the stake.
• The bonus is paid out as 4 $25 bonus bets.
• Bonus bets expire seven days after being credited.
• This DraftKings promo ends on May 31, 2026.

Up to $1,000 deposit match

For users ready to invest more, DraftKings offers a 20% deposit match up to $1,000. This offer is designed for those planning to engage more frequently and looking to maximize their starting balance.

Important terms and conditions:

GAMBLING PROBLEM? CALL 1-800-GAMBLER or 1-800-MY-RESET, (800) 327-5050 or visit MA Gambling Helpline (MA). Call 877-8-HOPENY/text HOPENY (467369) (NY).

Please Gamble Responsibly. 888-789-7777/visit CONNECTICUT COUNCIL – ON PROBLEM GAMBLING (CT), or visit Home (MD), 1-800-981-0023 (PR).

21+ and present in most states. (18+ DC/KY/NH/PR/WY). Void in NH/OR/ONT/PR. Eligibility restrictions apply. On behalf of Boot Hill Casino (KS). Pass-thru of per wager tax may apply in IL. 1 per new DraftKings customer. $5+ first-time bet req. Max. $100 issued as non-withdrawable Bonus Bets that expire in 7 days (168 hours). Stake removed from payout. Terms: Promos | DraftKings Sportsbook. Ends 5/31/26 at 11:59 PM ET. 

DraftKings welcome bonus highlights

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Check out our full DraftKings review to get all of your information on this Illinois betting site, including why we see it as a top options among parlay betting sites.

FanDuel lets you sign up, deposit $5, and place a $5 wager. If that bet wins, you'll be given $150 in bonus bets.

Before you sign up with one of the top Illinois college football betting sites, here are a few key terms:

• You must claim this promo on the FanDuel app, be a new user and, at least 21.
• You do not need to enter a FanDuel promo code to claim this offer.
• Your first wager must result win to get the bonus.
• There are no minimum odds required for your first wager.
• Bonus bets expire seven days after issuance.
• This FanDuel promo is available until June 3, 2026.

FanDuel welcome bonus highlights

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Check out our FanDuel review for an in-depth look at one of the fastest payout sportsbooks in Illinois.

Getting started on your sports betting journey in Illinois is quick and easy. Here are the steps that we suggest following to take full advantage of IL sportsbook promos.

1. Pick a welcome offer

With 10 Illinois sportsbooks to choose from, which include some of the best World Cup betting sites, there are plenty of ways for you to get started. Use this page to find the promos that suit you the best.

2. Claim your promo code

Click one of our links to access the offer and start the registration process. Some bonuses are applied automatically, while others may require a promo code. Then, download the sportsbook app from the App Store or Google Play.

3. Create a new account

You can register for a sportsbook online from the comfort of your home, anywhere in Illinois.

Registration requires users to provide personal information, such as a valid driver’s license, but it only takes a few minutes.

4. Verify your identity

You need to upload a photo of your resident ID card to verify your age and location in Illinois.

5. Deposit funds

You now have to make your initial deposit into the sportsbook(s) of your choice.

Most Illinois betting sites require a minimum deposit to claim a welcome bonus. Remember this amount to ensure you remain eligible for your new-user offer.

Illinois sportsbooks accept all the popular banking methods, including debit cards, credit cards, bank transfers, PayPal, and more.

6. Place a bet

You’ve registered, deposited money, and are now ready to place a wager. We have found that the best Illinois betting sites make it incredibly easy to track your bets and figure out the amount you stand to profit from a winning wager. Enter your wager amount, review your odds, and click 'Place Wager' to confirm.

7. Enjoy your bonus

As long as your bet qualifies for the welcome bonus, the IL sportsbook promo will be credited to your account. Many bonus bets have a quick expiration date, so keep that in mind.

Can I claim multiple Illinois sportsbook promos at the same time?

Yes, there is no limit to the number of IL sportsbook promos that bettors can claim. The only requirement when claiming a welcome bonus is that it’s your first time registering for the sportsbook. One piece of advice we can offer is to register for only one or two at a time. The promos expire as early as one week, and you don’t want to feel rushed into hasty wagers to clear the terms of the promotion.

Who can claim an Illinois sportsbook promo?

Any qualified Illinois bettor can claim the promos at IL sportsbook apps. The only requirement beyond the necessary legal parameters is that a bettor must be registering for a sportsbook for the first time. For example, even if someone registered for a sportsbook in New Jersey, they will not be able to claim the bonus in Illinois.

There are several reasons behind a sportsbook’s decisions regarding its welcome bonus. Among them may include the timing of a big event such as the Stanley Cup Playoffs. With so many fans tuning in to large events, sportsbooks may look to capitalize on the increased interest and desire for personal investment. These events could influence the timing of promotions, the promo bonuses offered, and several other factors.

Are there any hidden fees or conditions tied to IL sportsbook bonuses?

No, there are no “hidden fees” per se. However, bettors need to understand that certain terms and conditions can affect the value they derive from an IL sportsbook bonus. A primary one is that the bonus expires after seven days. It’s smart to be ready to wager when you register for an app. Secondly, it’s important to remember that bettors do not receive the stake of a bonus bet, only the winnings.

Can I use IL sportsbook promos for live betting or parlays?

Generally speaking, yes. However, it’s essential to familiarize yourself with the terms and conditions of each individual IL sports betting promo, as there are fine details that are crucial to be aware of before making a qualifying wager.