Underdog Promo Codes & Deposit Bonus 2026

There’s an awesome Underdog welcome bonus available right now that’s simple and rewarding. All new players who sign up and play just $5 will receive $75 in fantasy bonus entries. It’s a straightforward way to give your fantasy sports experience a real boost from the start.

Getting started is easy. Just create your Underdog account by entering your email, choosing a password, and filling in the short registration form with your personal details - remembering to input our promo code, which is highlighted on our page banners. After that, make your first play of $5 or more and the $75 fantasy bonus entries will automatically be credited to your account.

Once your bonus lands, you can dive into all the exciting fantasy sports contests on the platform. Whether you’re into quick-fire Battle Royales, strategic Pick’ems, or want to chase glory in the legendary Best Ball tournament with its $10 million prize pool, your $75 in fantasy bonus entries gives you more ways to play and win.

To take part, you must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog fantasy operates. Terms apply. Offer not valid in MD, MI, NJ, NY, OH, and PA. Concerned with your play? Call 1-800-MY-RESET or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).

It can be all too easy to go a little crazy with welcome offers like this, so we thought we should give you this shortlist of tips you can use to make the most of this awesome deal:

We realize that you might not have picked up any fantasy sports bonuses before. So here is a little FAQ that quickly explains the basics of this Underdog welcome offer:

Who can receive the welcome offer?

The welcome offer is available to all new customers at Underdog who have never signed up to the platformbefore. To be eligible, you must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog fantasy operates. Terms apply. Offer not valid in MD, MI, NJ, NY, OH, and PA. Concerned with your play? Call 1-800-MY-RESET or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).

Is there a minimum qualifying deposit?

Yes. To unlock the offer, you’ll need to deposit at least $10 before deciding on your first play of at least $5. Once you do, you’ll automatically receive $75 in fantasy bonus entries credited to your account.

What deposit methods can I use?

You can use any of the accepted payment methods at Underdog to get started. Most major credit cards are supported, and PayPal is also commonly available. Just keep in mind that the exact options can vary depending on which state you are playing from.

Are there any playthrough requirements?

The main condition is that you must use your $75 fantasy bonus entries to enter Underdog contests before you can redeem out any winnings. As with most promotions, the promo credit itself is not withdrawable, but any winnings you generate from it are yours to keep and withdraw.

Are there any time limits?

You should use your $75 fantasy bonus entries within a reasonable period after claiming it, but Underdog doesn’t force you into overly tight deadlines. Just remember that all promotions are subject to terms and conditions.

If you ever feel your play is becoming a problem, you can call or visitthe following for support. Call 1-800-MY-RESET or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).

So far, we’ve been talking about the welcome bonus at Underdog, but there are plenty more decent deals here. For example, we found a great little referral bonus that will give you $10 in bonus just for bringing a friend to the fantasy sports platform for the first time. What’s best is that you can keep activating this deal every time you bring someone new to Underdog who makes a deposit of $10 or more.

But it doesn’t stop there. Underdog has lots more deals, including some great Multiplier Boosts that could lead to impressive winnings if your picks prove to be correct.

Plus we even found some Pick’em specials to give you a helping hand. While all of this is good, it didn’t quite compensate for the fact that we didn’t find anything in the way of a reward program at Underdog. Here’s hoping that some kind of loyalty scheme emerges at this fantasy sports site at some point in the future.