March Deals are Here (With a Week Off Between Deals)!
The February coupon book officially ended yesterday (2/22) – and we actually get a week to breathe before the next one drops.
The March 2026 coupon book runs March 2nd through March 29th. That gives you seven whole days to pretend you’re not going to impulse-buy a 4-pack of something you definitely don’t need. (Spoiler: you will. We all will.)
Spring is knocking on the door, which means the coupon book is shifting gears too – think grilling supplies, allergy meds, and all the outdoor stuff you forgot you needed after hiding indoors since November.
Want to get a head start before your mailbox copy arrives? Click below to browse the full March coupon book now, thanks to our pals at Costco Insider. 👇👇
March marks the return of spring, and with that comes spring cleaning, lawn work, and allergies. What better way to prepare for the first official day of spring than by shopping at your favorite bulk warehouse? Costco has everything you need to get you going, from new cleaning technology to lawn care. Check out our favorite March 2026 Costco coupon deals below.
Electronics & Appliances
Costco
High-value electronics and large appliances see some of the deepest discounts in this book, particularly for online orders.
Computers: MSI Aegis Gaming Desktop ($300 off) and Dell Plus 16″ Touchscreen Copilot+ PC ($300 off).
Major Appliances: Upgrade your appliances with these large-scale savings on select Samsung ($100–$1,400 off), LG ($400–$1,700 off), and Whirlpool ($150–$1,000 off) suites.
Household Essentials
Costco
There are numerous deals on bulk cleaning supplies, paper products, and home maintenance items.
Cleaning: Make spring cleaning that much easier with these tech savings. Grab the Shark PowerDetect 2-in-1 Robot Vacuum & Mop ($120 off) and the Winix C610 Air Purifier ($30 off) so you can focus ensure fresh, clean spaces all season long. And don’t forget to stock up on Tide + Ultra OXI Powder Laundry Detergent ($6 off) for the perfect clean every laundry day.
Paper Goods: Charmin Ultra Soft Bath Tissue ($6.60 off) and Kleenex Soothing Lotion Facial Tissue ($4 off).
Batteries: Duracell Alkaline Batteries ($2 off).
Groceries & Pantry
Costco
The food section is extensive, covering everything from snacks to frozen dinners and beverages.
Frozen/Prepared Foods: Perdue Panko Breaded Chicken Nuggets ($4 off) and Kevin’s Korean BBQ-Style Beef ($5 off).
Personal Care & Health
Costco
Deals in this category focus on oral hygiene, supplements, and over-the-counter medicine.
Personal Care: Oral-B iO Electric Toothbrush 2-pk ($50 off) and Crest 3D White Pro Advanced Toothpaste ($4 off).
Health: Keep you and your family healthy with these amazing deals on vitamins and medicine. Airborne Effervescent Tablets/Gummies ($4 off) is perfect for keeping your immune system in check and fending off colds. And for a boost of support for brain health and cognitive function, grab these trunature Ginkgo Biloba ($3 off) supplements.
Automotive: Bridgestone Tires ($80 off any set of 4).
Gardening (Online Only): Want a lawn that will impress the neighbors? Stock up on Scotts Max Turf Builder Weed & Feed ($18 off) to get a head start towards a luscious green yard this year.
