TL;DR
Shake Shack is celebrating National Burger Month with weekly offers and a sweepstakes throughout May to drive customer engagement. The fast-casual burger chain is offering limited-time promotions on its signature burgers, including a free single burger with a minimum purchase of $10.
In celebration of National Burger Month, Shake Shack is rolling out a series of limited-time offers throughout May, featuring weekly promotions on its signature burgers.
From May 1 through May 31, guests can receive a free single burger with a minimum purchase of $10 by using the code FREEBURGER when ordering through the Shack App, online, or at in-Shack kiosks. Each week will highlight a different burger from the brand’s core menu.
The schedule of offers includes:
May 11 – May 17: SmokeShack
May 18 – May 24: Bacon Cheeseburger
May 25 – May 31: ShackBurger
Shake Shack’s burgers are made-to-order using 100% Angus beef and a range of premium ingredients.
In addition to the weekly promotions, the company is hosting a National Burger Month sweepstakes. Guests who enter before June 1 will have the chance to win free burgers for a year. Terms and conditions apply.
Customers can participate in the promotion and access additional details through Shake Shack’s digital ordering platforms.
In this story
This story was originally published by Ben Coley in QSR Magazine on May 11, 2026. Burnaze summarizes and links to the original reporting.
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