Dunkin' started handing out a Dunkin free coffee code to Dunkin' Rewards members on Tuesday, September 22, with 1 million offers set aside and distributed through the Dunkin' App. The giveaway runs while supplies last, so the offer is built for speed as much as membership.
Anyone trying to use the promotion needs to be in Dunkin' Rewards and using the mobile app, because the codes are not being handed out broadly. That matters in practical terms: the offer is limited to the app, limited to members, and limited to the first wave of people who reach it before the supply runs down.
Dunkin' App code access
The free coffee codes are being distributed directly through the mobile app, which makes the app the point of entry for anyone hoping to claim one. Dunkin' Rewards members already earn 10 points per $1 spent on qualifying purchases made in stores or through the Dunkin' app, and the promotion sits inside that same rewards system rather than outside it.
September also includes other offers that can matter to the same customer. From September 7 through September 28, members can earn 100 bonus points on eligible Mobile Mondays when they order ahead through the Dunkin' app, and from September 21 through September 25, eligible Boosted Members can earn 3X points on any beverage purchase after 1 p.m.
National Coffee Day and September 29
The free coffee code is not the only date-driven offer on the calendar. Customers who purchase any beverage at participating locations on Tuesday, September 22, can receive a limited-edition L.L.Bean cozy sweater cup sleeve while supplies last, and on September 29 for National Coffee Day, fans can claim a free medium coffee with any qualifying purchase.
There is a useful catch in the setup: the headline number is 1 million, but the offer still depends on availability. That means the giveaway is large enough to sound generous and small enough, relative to demand, to reward people who act early rather than assume the code will still be there later.
Boosted Status and ID offers
Dunkin' also lays out other Rewards benefits for regular customers. Members can earn 3X points on purchases made the day before, the day of, or the day after their birthday, and after making 12 visits in a calendar month, members can receive Boosted Status and earn 12 points per $1 spent for three months. Some participating locations also offer 10% off to customers who show a valid college or military ID.
For readers planning around the promotion, the useful move is simple: open the app, check membership status, and move before the supply thins out. The September calendar gives one more reason to do it quickly, because National Coffee Day on September 29 arrives just days after the free-code drop begins.







