Dunkin Free Coffee: Use SIZEDOESNTMATTER on October 21
SIZEDOESNTMATTER
We may earn a commission when you buy through our links, at no extra cost to you.
Popular
Dunkin’s coffee giveaway is available to claim on Wednesday, October 21, 2026, while its allocation of one million promo-code claims lasts. Enter SIZEDOESNTMATTER to claim a free hot or iced coffee certificate.
How to claim your coffee
- Enter SIZEDOESNTMATTER in the Dunkin app’s promo-code area on October 21.
- Confirm that the free coffee certificate appears in your account. Read its restrictions and redemption instructions before ordering.
- Use the certificate within its displayed validity period. Dunkin says it is valid for five days after promo-code entry.
Sizes, limits and availability
The original DealsFinders artwork highlights a medium hot or iced coffee. Dunkin’s official announcement confirms that the giveaway covers any size except extra-large hot coffee, so a medium is included.
There is a limit of one certificate per customer, with one million promo-code claims available. The code is valid on October 21; a successfully claimed certificate has its own five-day redemption window. Do not assume that an unclaimed code remains available for those five days.
The artwork’s noon Eastern start time was labeled an estimate. Dunkin has now posted the code publicly. Remaining claims and individual account eligibility have not been checked, so availability is not guaranteed. Additional terms and exclusions may apply; verify the certificate and final order total in the app.
Grab this deal before it’s gone →
See the original Instagram post
DealsFinders may earn a commission from qualifying purchases. Prices and availability can change.
Want more deals like this?
Follow it and we will tell you when we post a new deal for it. No account needed.
Where should we tell you?
One message when it happens. Unsubscribe in one click, any time.
