National Cheeseburger Day T&Cs:

Offer valid only on 9/18/2024 at participating U.S. Smashburger® locations. Coupon may be utilized in store or online through the smashburger.com website or Smashburger® app during regular business hours. Store hours may vary. Offer for a $5 Single Classic Smash® Burger (not including applicable taxes). Must use promo code “CLASSIC24” or “BURGERDAY” at checkout in store or online. Protein substitutions for crispy chicken, grilled chicken or turkey are excluded from this offer. Premium modifiers are excluded and are at an additional cost. No limit on number of coupons that may be redeemed per transaction or per customer. Offer does not apply to any applicable sales tax.  Not valid on catering orders or orders with third party delivery. Cannot be used in conjunction with any other offer, promotion, or discount. Not valid on previous purchases. No cash value (unless prohibited by law, then cash value is $.005). No substitutions. No rainchecks.  Company reserves the right to withdraw or change the offer’s terms and conditions at any time, at Smashburger’s discretion, and without notice.  While supplies last.  © 2024 Smashburger IP Holder LLC.  All rights reserved.