Popular coffee and doughnut chain Dunkin’ is ending its proDUNKtivity week with a sweet treat for customers. On Friday, January 2, Dunkin’ is giving away a free classic donut with the purchase of any beverage at participating locations.

Adding a fun twist, customers will receive their free donut in a small, reusable doughnut-themed tote bag, while supplies last. The offer is valid for in-store purchases and orders placed through the Dunkin’ app, but not on third-party delivery platforms.

How customers can get the free donut

To avail of the offer, customers must purchase any beverage and add a classic donut to their order. The donut will be deducted at checkout, with a limit of one free donut per beverage purchase. Dunkin’ has clarified that the promotion is subject to availability and applies only at participating stores.

The brand has encouraged customers to act quickly, as both the donuts and the limited-edition tote bags are available only while stocks last.

What is proDUNKtivity week?

The free donut deal marks the final day of Dunkin’s special “proDUNKtivity” promotional week, launched to help customers power through post-holiday fatigue and ease into the new year.

The week-long campaign began on December 29 with a free coffee offer, followed by merchandise sweepstakes on December 31. Dunkin’ described the initiative as a way to help people “power through the final stretch of the year,” combining caffeine, comfort food and light-hearted rewards.

Where the offer is available

The free donut promotion is available at participating Dunkin’ outlets across Delaware and Pennsylvania. Stores in cities such as Wilmington, Dover, Rehoboth Beach, Newark, Philadelphia, Pittsburgh, Allentown, Harrisburg and Lancaster are among those included.

Customers are advised to check with their nearest Dunkin’ outlet or the Dunkin’ app to confirm participation, as not all locations may be part of the offer.

A simple start to the new year

With rising food and beverage prices, such limited-time promotions continue to draw strong customer interest. Dunkin’s final proDUNKtivity deal has been widely shared on social media, with fans calling it a “perfect excuse” for a coffee run.

For many, the free donut offer provides a small but welcome indulgence to kick-start 2026 on a sweet note.