Smashburger promo codes
2 of 28 Smashburger codes passed a checkout test. Each one lists what it covers and when it was last checked.
- Codes listed
- 28
- Verified
- 2
- Sitewide
- 5
- Last checked
- Oct 14, 2026
Verified codes
SALE
Verified
Free Large Beverage Storewide (minimum Order $20) (scroll Down to See the Code) at Smashburger
- Works sitewide — no specific product required
- Applies to: storewide
- Excludes: other
SALE
Verified
Free Regular Sized Fry Or Tot Items On Burger Purchase (Excludes Loaded Toppings And Sweet Potato) at Smashburger
- Applies to: Select items
- Excludes: other
Unverified codes
Listed as found; some may have ended$10 Off
Not verified
$10 Off Shrimp Lovers Rejoice (scroll Down to See the Code on Shrimp Lovers Rejoice) at Smashburger
- Applies to: Select items
- Excludes: other
$6 Off
Not verified
$6 Off Big Shrimp Roll, Scorchin' Big Shrimp Roll at Smashburger
- Applies to: Select items
$5 Off
Not verified
$5 Off $25+
$4 Off
Not verified
$4 Off Storewide (minimum Order $20) at Smashburger
- Works sitewide — no specific product required
- Applies to: storewide
$4 Off
Not verified
$4 Off Mint Oreo Shake at Smashburger
- Applies to: Select items
$4 Off
Not verified
$4 Off Storewide (minimum Order $20) (at Participating Locations Only) at Smashburger
- Works sitewide — no specific product required
- Applies to: storewide
- Excludes: other
$3 Off
Not verified
$3 Off Regular or Scorchin' Cup of Cheesy Mac at Smashburger
- Applies to: Select items
$2 Off
Not verified
$2 Off $5 Or More
$2 Off
Not verified
$2 Off $5+
$2 Off
Not verified
$2 Off Purchase Of $5 Or More
$2 Off
Not verified
$2 Off One Shrimp Basket at Smashburger
- Applies to: Select items
$2 Off
Not verified
$2 Off Any Loaded Side Packed (special Restrictions Apply) at Smashburger
- Applies to: Select items
- Excludes: other
Free Gift
Not verified
Free Gift Any Regular Size Side Order at Smashburger
- Applies to: Select items
Buy 1 Get 1
Not verified
Buy 1 Smashburger, Get 1 Free
SALE
Not verified
Bogo Smashburger, Big Dog at Smashburger
- Applies to: Select items
SALE
Not verified
Free Fries or Tots on (storewide) at Smashburger Storewide at Smashburger
- Works sitewide — no specific product required
- Applies to: storewide
SALE
Not verified
Buy One Get One Free on Smashburger or Big Dog at Smashburger
- Applies to: Select items
SALE
Not verified
Free Fries For National French Fry Day!
SALE
Not verified
Free Regular Smashfries With A $10 Purchase
SALE
Not verified
Free Meal
SALE
Not verified
Buy One Get One Free on Vanilla Shakes (special Restrictions Apply) at Smashburger
- Applies to: Select items
- Excludes: other
SALE
Not verified
Get for 5 Dollars and 28 Cents on Single Smash at Smashburger Single Smash at Smashburger
- Applies to: Select items
SALE
Not verified
4 for 20 Usd on Select Items at Smashburger Select Items at Smashburger
- Applies to: Select items
SALE
Not verified
Free Regular Size Fry on (storewide) (minimum Order: $1) Usa at Smashburger Storewide (special Restrictions Apply) at Smashburger
- Works sitewide — no specific product required
- Applies to: storewide
- Excludes: other
SALE
Not verified
Buy One Get One Free on Any Smashburguer or Big Dog (exclusions Apply) at Smashburger
- Applies to: Select items
- Excludes: other
SALE
Not verified
1 for 6usd Big Dogs at Smashburger
- Applies to: Select categories
How to use a Smashburger code
Show and copy the code
Start with a verified code. The code opens in a new tab and this tab continues to Smashburger.
Fill your bag at Smashburger
Add the items the code applies to. Sale items and some brands are often excluded.
Paste it at checkout
Enter the code in the promo field before you pay. If the total does not change, try the next code.
Questions about Smashburger codes
Does Smashburger have a working promo code right now?
Yes. 2 of the 28 Smashburger codes listed here passed a checkout test, most recently on October 14, 2026.
What is the best Smashburger promo code today?
The strongest offer we have on file is “Free Large Beverage Storewide (minimum Order $20) (scroll Down to See the Code) at Smashburger”, which is verified.
Do Smashburger codes work on everything?
5 of the listed codes are described as sitewide. The rest are limited to selected items, a minimum spend or new customers; each code lists its terms where they are known.
How do I use a Smashburger promo code?
Select “Show code” on this page and copy the code, add your items to the bag at Smashburger, and paste the code into the promo or discount field at checkout before you pay. The order total should update straight away; if it does not, the code does not apply to your basket.
Why did my Smashburger code not work?
The usual reasons are an expired code, sale items that are excluded, a minimum spend that has not been reached, or a code limited to first orders. Codes marked “Verified” were accepted at checkout on the date shown; unverified codes are listed as found and may already have ended.
Codes are collected from public sources and re-checked on a rolling schedule; retailers can end an offer at any time. InfluencerRate may earn a commission when you shop through links on this page.