Free Medium Hot or Iced Coffee with purchase (National Coffee Day)

Dunkin' Rewards members get one free medium hot or iced coffee with any purchase through the Dunkin' app on National Coffee Day. Single-use per member. Excludes Cold Brew and hot espresso beverages. Valid at participating U.S. stores. Cannot be combined with other offers.

How to claim: Join Dunkin' Rewards (free) in the Dunkin' app. On 2026-09-29, place any purchase through the app and redeem one free medium hot or iced coffee. Not valid on delivery platforms. Excludes Cold Brew and hot espresso beverages.

Region: US

Eligibility: Dunkin' Rewards members; participating U.S. stores; one per member