Hey, Costco diehards! đź‘‹ Time to gear up.
The September 2025 coupon book is almost here, so keep an eye on your mailbox. Expect the classics – everyday essentials, a few irresistible “didn’t-know-I-needed-that” buys, plus late-summer favorites. This edition spans 24 pages, right on par for the season.
Deals run from August 25th to September 21st, giving you plenty of time to plan your haul. Want a peek before it lands at your door?
Click here to check out the digital version! 👇
The kids are back in school, and the seasons are about to switch. This is the perfect time to clean the house to prepare for fall. Costco has some great finds when it comes to household essentials, as well as late-summer deals to stock up on for next year. These are some of our favorite September 2025 Costco coupons for this coupon book.
Adding probiotics to your diet is a great way to ensure your gut is healthy, which benefits your overall health. Whether you want a healthy snack for your kids’ lunch or for a quick bite throughout the day, these Activia low-fat yogurts are a great option.
You can never have too many cold and flu medications, especially with winter just around the corner. Thanks to Costco’s great deal this month, you can stock up on DayQuil and NyQuil medication that combats headaches, fevers, sore throats, minor aches, and pains for $5 off.
Tide Pods have proved their worth time and time again, and now you can stock up on 156 total pods for $6 less this month. Never worry about running out of pods again by grabbing a couple of boxes of this laundry detergent.
One of the best things to stock up on while you’re shopping at Costco is toilet paper. And while Kirkland Signature is a customer-favorite, Charmin is another great option. And now you can grab the 30-roll package for a $6.50 discount.
With the kids heading back to school, that means more early mornings and late-night homework sessions. Stock up on Starbucks K-Cups now before you run low to prepare for the longer days. You might even be able to find the Starbucks Holiday Blend.
Brighten your smile this season with Crest 3D Whitestrips. This teeth whitening kit is discounted $15 for an even more affordable way to take care of your teeth. The kid includes 20 professional treatments and 10 brightening treatments to transform and maintain your smile.
The weather is about to get colder, and schedules are about to get busy. Gym memberships or walking outside might not be the best option right now. But that doesn’t mean you can get your steps in. Costco has this amazing KingSmith WalkingPad Pro for $200 off, giving you the ability to exercise in the comfort of your own home at your leisure.
A deal you don’t want to miss during the September Costco coupon book deal is this Dell 24” all-in-one desktop with a touchscreen display. With this computer, you can tackle your to-do list with ease. There are several advanced features to keep you focused, like the Dell ComfortView that protects your eyes from harmful blue light.
