Smashburger: Any Burger or Big Dog B1G1 Free (Valid Thru 10/3)

at Smashburger

Smashburger restaurant storefront or branded burger with fresh toppings and sesame seed bun.

Buy one burger or Big Dog, get one free at Smashburger from September 28–October 3, 2026.

Buy one burger or Big Dog, get one free at Smashburger. Valid September 28–October 3, 2026 at participating US locations. Dine in or order online with promo code SEPBOGO26 through smashburger.com or the app. Get a complimentary burger or Big Dog of equal or lesser value with any burger or Big Dog purchase. One offer per transaction. Excludes Smoked Brisket Bacon Smash and crispy chicken items. Premium modifiers cost extra. Cannot combine with other offers or promotions.

unknown
Ends Oct 3
food
about 2 hours ago
via Slickdeals
In-store only
Coupon code

FAQ

How do I redeem this offer online?

Enter promo code SEPBOGO26 at checkout on smashburger.com or the Smashburger app.

How do I redeem this offer in-restaurant?

Mention the BOGO offer at checkout when placing your order.

What items are excluded from this offer?

The Smoked Brisket Bacon Smash and items with crispy chicken are excluded. Premium modifiers are not included and cost extra.

Can I use this offer more than once per visit?

No, only one offer may be redeemed per transaction.

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