Freebie: Shake Shack ShackBurger with the purchase of one.
Location: Shake Shack has over 270 locations across the country.
How to Redeem: Purchase a ShackBurger on the Shake Shack website or through the Shake Shack app. Enter the promo code THANKYOU21 at checkout to get a free one with it!
Bonus: Get exclusive food offers and special delivery pricing through the Shake Shack mobile app.

If you’re a vegetarian or simply not in the mood for a burger, there are plenty of other fabulous freebies for everyone available in our Freebie section. Find your favorites today!

Those of you who wouldn’t mind bringing in the new year with a delicious burger should follow along to see how you can get your hands on a free Shake Shack ShackBurger. If you already know you want it, click here to get started right away.

Shake Shack wants to help everyone end 2021 on a high note, and it’s doing that the best way it knows how — with free burgers! This offer is good for a free Shake Shack ShackBurger with the purchase of one.

To get the offer, you need to place your order either online on the Shake Shack website or through the Shake Shack mobile app. Add a ShackBurger to your order and enter the promo code THANKYOU21 at checkout to get a free one with it! This tasty New Year’s offer is available through January 2, 2022.

Click TAKE ME THERE below to get this offer!

Star Rating: 4/5 ⭐⭐⭐⭐

• Shake Shack is a chain of fast casual burger restaurants.
• Shake Shack has over 270 locations across the country.
• This freebie is offered by Shake Shack.
• This freebie requires making a purchase.
• This freebie is a burger.