Costco coupon book › October 2026
Costco October 2026 Coupon Book
Quick answer: Costco's October 2026 coupon book (its warehouse Instant Savings) runs from September 21, 2026 to October 18, 2026. It has 137 deals adding up to about $1,524 in savings if you bought one of each. The discounts come off automatically at checkout, no clipping needed. All of them are below, biggest saving first, taken from the same catalog the CostRefund app uses.
All 137 deals in the October 2026 book
Warehouse prices; Costco.com runs its own offers. A deal marked "Save" with no price comes off the shelf price at the register.
-25%Lenovo IdeaPad 5 2-in-1 14" Touchscreen Laptop - Ryzen AI 7 445 Processor - WUXGA (1920 x 1200) - 16GB RAM - 1TB SSD - Windows 11 Home - Digital Pen Included
Computers
Save $300.00
Dyson Gen5Detect Extra Cordless Stick Vacuum
Grocery & Household Essentials
-25%Dyson Purifier Hot+Cool HP11
Warehouse Savings
Oct 5 – Oct 11 only
Save $150.00
Govee 180' Permanent Outdoor Lights Elite
Grocery & Household Essentials
-20%Thomasville Timeless Classic 7'10" x 10' Area Rug
Warehouse Savings
Oct 5 – Oct 18 only
Save $40.00
-22%SINGER Heavy Duty 8832 Sewing Machine, Black
Warehouse Savings
Oct 5 – Oct 11 only
Save $40.00
-24%Philips Sonicare Professional Clean Plus Rechargeable Toothbrush
Grocery & Household Essentials
Save $40.00
-30%BISSELL Little Green MultiClean Wet and Dry Portable Carpet and Upholstery Cleaner
Grocery & Household Essentials
Save $30.00
-23%WINIX C710 4-Stage True HEPA Air Purifier with Wi-Fi and Additional Filter
Appliances
Save $30.00
Tommy Bahama Padded Club Chair
Grocery & Household Essentials
Qunol Liquid CoQ10
Grocery & Household Essentials
Qunol Liquid Turmeric
Grocery & Household Essentials
Neuriva Brain Supplement
Grocery & Household Essentials
-29%RoC Retinol Correxion Deep Wrinkle Moisturizer
Grocery & Household Essentials
Save $10.00
-23%Poise Advanced Ultimate Absorbency Incontinence and Postpartum Long Pads, 108-Count
Other
Save $10.00
youtheory Total Body Turmeric
Grocery & Household Essentials
-20%Thomasville Timeless Classic Runner Rug, 2'6" x 7'
Warehouse Savings
Oct 5 – Oct 18 only
Save $10.00
Glucerna Shake
Grocery & Household Essentials
youtheory Concentrated Effect Verisol Collagen
Grocery & Household Essentials
Keurig® K-Cup® Pods Peet's Coffee
Grocery & Household Essentials
Keurig® K-Cup® Pods Lavazza Espresso
Grocery & Household Essentials
Keurig® K-Cup® Pods Caribou Blend
Grocery & Household Essentials
-23%Ensure Original Nutrition Shake, 8 fl. oz, 30-pack, Vanilla
Other
Save $8.50
Bausch + Lomb PreserVision AREDS 2
Grocery & Household Essentials
Nature Made CoQ10
Grocery & Household Essentials
Kirkland Signature Extra Strength Energy Shot
Grocery & Household Essentials
-28%Liquid I.V. Hydration Multiplier, 30 Individual Serving Stick Packs in Resealable Pouch, Variety Pack
Other
Save $8.00
-27%Harry's Chrome Edition Razor Set 16 Cartridges + 1 Handle
Other
Save $8.00
-28%Liquid I.V. Hydration Multiplier, 30 Individual Serving Stick Packs in Resealable Pouch, Sugar Free, Variety Pack
Other
Save $8.00
-28%Liquid I.V. Hydration Multiplier, 30 Individual Serving Stick Packs in Resealable Pouch, Sugar Free, Ring Pop Cherry
Other
Save $8.00
Sports Research Magnesium L-Threonate
Grocery & Household Essentials
Nello Superfocus
Grocery & Household Essentials
Force Factor Hair Growth Accelerator
Grocery & Household Essentials
Peet's Coffee Organic French Roast Ground Coffee
Grocery & Household Essentials
Mucinex DM Max Strength
Grocery & Household Essentials
Mucinex Max Strength
Grocery & Household Essentials
Osteo Bi-Flex Triple Strength Joint Health
Grocery & Household Essentials
-27%NESCAFE Taster's Choice Instant Coffee, House Blend, Light-Medium Roast, 14 oz
Grocery & Household Essentials
Save $6.00
-23%CeraVe Moisturizing Cream Interchangeable Multi-Pack, 16 oz Jar with Pump + 16 oz Jar
Beauty
Save $6.00
Emergen-C Vitamin C
Grocery & Household Essentials
Sports Research Omega-3 Fish Oil
Grocery & Household Essentials
youtheory Ashwagandha
Grocery & Household Essentials
Sports Research L-Theanine
Grocery & Household Essentials
Mucinex 12 HR Cold & Fever
Grocery & Household Essentials
Bausch + Lomb Ocuvite Adult 50+ Eye Vitamins
Grocery & Household Essentials
Culturelle Digestive Daily Probiotic
Grocery & Household Essentials
Nature Made CholestOff Plus
Grocery & Household Essentials
Nature's Bounty B-12
Grocery & Household Essentials
Weider Red Yeast Rice Plus
Grocery & Household Essentials
Vicks DayQuil + NyQuil Severe Cold & Flu LiquiCaps
Grocery & Household Essentials
Bausch + Lomb Biotrue Multi-Purpose Solution
Grocery & Household Essentials
Ruprecht Fully Cooked Irish Stew
Grocery & Household Essentials
Nature's Bounty Sleep³ Melatonin
Grocery & Household Essentials
Nature's Way Sambucus Elderberry Immune Gummy
Grocery & Household Essentials
Estroven Complete Multi-Symptom Menopause Relief
Grocery & Household Essentials
Vicks Liquid
Grocery & Household Essentials
-25%Nautica Men's Lounge Pant
Grocery & Household Essentials
Save $5.00
Blueland Dishwasher Detergent Tablets
Grocery & Household Essentials
Nature Made Magnesium Citrate
Grocery & Household Essentials
Centrum Silver Men 50+ Multi
Grocery & Household Essentials
Centrum Silver Women 50+ Multi
Grocery & Household Essentials
Aleve Liquid Gels
Grocery & Household Essentials
Tylenol Extra Strength
Grocery & Household Essentials
Tylenol PM
Grocery & Household Essentials
Tylenol Rapid Release Gels
Grocery & Household Essentials
Advil Tablets
Grocery & Household Essentials
Aleve Caplets
Grocery & Household Essentials
Excedrin Migraine Relief
Grocery & Household Essentials
Tylenol 8HR Arthritis Pain
Grocery & Household Essentials
Advil Liqui-Gels
Grocery & Household Essentials
Giovanni Rana French Onion-Style Ravioli Bake Kit with Beef Sauce
Grocery & Household Essentials
Brazi Bites Brazilian Cheese Bread
Grocery & Household Essentials
Robitussin DM Max
Grocery & Household Essentials
trunature Advanced Digestive Probiotic
Grocery & Household Essentials
Milton’s Roasted Vegetable Cauliflower Crust Pizza
Grocery & Household Essentials
Kirkland Signature Colombian Supremo Coffee, Whole Bean, 3 lbs
Warehouse Savings
Oct 5 – Oct 11 only
Breathe Right Extra Strength Clear Nasal Strips
Grocery & Household Essentials
Breathe Right Extra Strength Tan Nasal Strips
Grocery & Household Essentials
Foster Farms Take Out Sweet Chipotle BBQ Crispy Chicken Wings
Grocery & Household Essentials
trunature Women’s Daily Probiotic
Grocery & Household Essentials
Nature's Bounty Immune 24 Hour +
Grocery & Household Essentials
Skinny Pop Popcorn Organic
Grocery & Household Essentials
Mucinex Children's Multi-Symptom Daytime + Nighttime
Grocery & Household Essentials
Airborne Immune Support Gummies
Grocery & Household Essentials
Theraflu Severe Cold Day + Night
Grocery & Household Essentials
-21%Berkshire Chenille Knit Throw
Grocery & Household Essentials
Save $4.00
-25%Sukhi's Butter Chicken
Grocery & Household Essentials
Save $4.00
-21%Copper & Oak Men's Tech Pant
Grocery & Household Essentials
Save $4.00
-20%Banana Republic Women's Ponte Pant
Grocery & Household Essentials
Save $4.00
-20%RVCA Men's Hoodie
Grocery & Household Essentials
Save $4.00
SmartyPants Kids Plus Multi & Omegas
Grocery & Household Essentials
-25%Lysol Disinfectant Spray, Crisp Linen, 19 oz, 3-count
Grocery & Household Essentials
Save $4.00
-35%Lysol Advanced Toilet Bowl Cleaner, 32 fl oz, 4-count
Grocery & Household Essentials
Save $4.00
-32%Jerky Treats Dog Snacks
Grocery & Household Essentials
Save $4.00
Delsym 12 Hour Cough Relief
Grocery & Household Essentials
Ajinomoto Japanese Style Vegetarian Yakisoba
Grocery & Household Essentials
Classico Organic Pasta Sauce
Grocery & Household Essentials
Nature's Bounty Hair, Skin & Nails Softgels
Grocery & Household Essentials
Nature Made Super B-Complex
Grocery & Household Essentials
trunature Lutein & Zeaxanthin
Grocery & Household Essentials
-20%Kleenex Trusted Care Facial Tissue, 2-Ply, 230-count, 10-pack
Grocery & Household Essentials
Save $4.00
One A Day Men's Multi
Grocery & Household Essentials
One A Day Women's Multi
Grocery & Household Essentials
Airborne Effervescent Tablets
Grocery & Household Essentials
Caltrate Bone Health Advanced Calcium 600+D3
Grocery & Household Essentials
CJ Foods bibigo Chicken & Vegetable Steamed Dumplings
Grocery & Household Essentials
-28%Morning Summit Lightly Sweetened Maple Berry Blend Cereal
Grocery & Household Essentials
Save $3.80
Nature Made Super C
Grocery & Household Essentials
St Michel La Grande Galette French Butter Cookies
Grocery & Household Essentials
Zarbee's Children's Cough Syrup
Grocery & Household Essentials
Nature Made Extra Strength Vitamin C Gummies
Grocery & Household Essentials
-22%Scrub Mommy Dual-Sided Sponges
Grocery & Household Essentials
Save $3.50
Nature Made Vitamin D3 Gummies
Grocery & Household Essentials
OLLY Women's Multi Gummies
Grocery & Household Essentials
OLLY Kids Multi & Probiotic Gummies
Grocery & Household Essentials
OLLY Sleep
Grocery & Household Essentials
OLLY Men's Multi Gummies
Grocery & Household Essentials
Tylenol Children's Cough
Grocery & Household Essentials
Nature Made Vitamin D3
Grocery & Household Essentials
Ricola Sugar Free Lemon Mint Throat Drops
Grocery & Household Essentials
Kirkland Signature Fish Oil
Grocery & Household Essentials
Heavenly Hunks Organic Oatmeal Dark Chocolate Cookies
Grocery & Household Essentials
Vicks VapoRub
Grocery & Household Essentials
-20%Kirkland Signature Premoistened Flushable Wipes, Fragrance Free, 640-Count
Warehouse Savings
Oct 5 – Oct 18 only
Save $3.00
Kirkland Signature Severe Cold & Flu
Grocery & Household Essentials
Head Men's Touchscreen Running Gloves
Grocery & Household Essentials
Head Women's Touchscreen Running Gloves
Grocery & Household Essentials
-21%Lysol Disinfecting Wipes, Variety Pack, 95-count, 4-pack
Grocery & Household Essentials
Save $3.00
Bolder Foods Loaded Baked Potato Soup
Grocery & Household Essentials
Bengay Ultra Strength
Grocery & Household Essentials
Nature's Bounty Zinc
Grocery & Household Essentials
Sambazon Organic Dragon Fruit Berry Ginger Juice
Grocery & Household Essentials
Miss Vickie's Spicy Dill Pickle Flavored Potato Chips
Grocery & Household Essentials
-23%Kirkland Signature Wire-Edge Holiday Ribbon, 50 Yards
Warehouse Savings
Oct 5 – Oct 11 only
Save $2.00
Duracell Alkaline Batteries AAA
Grocery & Household Essentials
Duracell Alkaline Batteries AA
Grocery & Household Essentials
Head Kids' Touchscreen Gloves/Mittens
Grocery & Household Essentials
Bought one of these before the book started?
Costco's price adjustment policy refunds the difference when something you bought drops in price within 30 days, and a coupon book discount counts. So anything on this list that you paid full price for in the 30 days before September 21 may be worth a trip to the membership counter while the book is running. Checking every receipt by hand is the hard part; that's what CostRefund's price tracker does for you.
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