Costco October 2026 Coupon Book

Costco October 2026 Coupon Book: Cold Meds, Candy, and a Laptop Deal

Two in a row with no breather. The October 2026 coupon book runs from Monday, September 21 through Sunday, October 18, which means it starts the morning after the September book ends. That is the second month straight with no gap week, so this might be the new normal.

No holiday closures to plan around this time. Costco stays open straight through, Columbus Day included.

There is no Shop Card headliner like September’s P&G deal. Instead this book leans on the pharmacy aisle. Five of the eighteen pages are cold medicine, vitamins, and supplements, which tells you what Costco thinks October is for. Halloween candy shows up in bulk, the TV wall is dressed up for football season, and there is a quiet online-only appliance sale with Whirlpool, Samsung, and LG discounts that climb as high as $1,600.

The biggest straight discount you can carry out of the warehouse is $300 off a Lenovo 2-in-1 laptop. Online, a Henredon sectional drops $700.

As always, our friends over at Costco Insider have the entire book scanned page by page. Head over there to flip through all 18 pages. Below are the deals we think deserve a spot on your list.👇👇

Our Favorites This Month

Lenovo IdeaPad 5 2-in-1 14″ Touchscreen Copilot+ PC – $899.99 After $300 Off

Three hundred off a touchscreen 2-in-1 with 16GB of RAM, a 1TB SSD, and a Lenovo Pen Gen 2 in the box, which is the accessory that normally costs extra and then lives in a drawer. If someone in your house needs a school or work laptop before the holidays, this is the month. Item 2041212, limit 2, also online.

Samsung Q-Series HW-Q60CF 3.1.2ch Soundbar with Wireless Subwoofer – $200 Off

Two hundred off a soundbar with a dedicated center channel and a wireless sub. The same page has a wall of TVs pitching football season, and this is the piece that makes crowd noise sound like crowd noise instead of static. Item 1961136, limit 5, also online.

Dyson Gen5Detect Extra Cordless Stick Vacuum – $180 Off

Last month it was $100 off the V10. This month Costco moved up the lineup to $180 off the Gen5Detect, the one with the laser head that shows you exactly how much you have been missing on the hardwood. Fair warning, that feature is either satisfying or horrifying depending on your pets. Item 6373801, limit 5, also online.

Philips Sonicare Professional Clean Plus Rechargeable Toothbrush 2 pk – $129.99 After $40 Off

The Sonicare 2 pack is back, this time the Professional Clean Plus at $129.99 after $40 off. Two brushes, two travel cases, extra heads included. If you missed the DiamondClean deal in September, this one lands fifty dollars cheaper and still gets the job done. Item 5952050, limit 5, also online.

BISSELL Little Green MultiClean Wet and Dry Portable Carpet and Upholstery Cleaner – $69.99 After $30 Off

Thirty dollars off the little machine with a cult following. Under seventy bucks for something that pulls Halloween candy, dog accidents, and mystery couch stains out of fabric is the kind of purchase you thank yourself for in November. Item 3670779, limit 5, also online.

Rastelli’s Reserve Beef Tenderloin Filet Mignon Roast 4 lbs – $139.99 After $60 Off

Online only, but worth the click. Four pounds of filet mignon roast with garlic herb butter and seasoning included for $139.99, which works out to about $35 a pound for tenderloin delivered to your door. Order it now, freeze it, and thank us when you host in November. Item 2009321, no limit.

Hershey’s Chocolate Candy Variety Pack 30 ct – $6.80 Off

September had the Mars box. October brings the Hershey’s version, 30 full size Kit Kat, Reese’s, and Hershey’s bars at $6.80 off. Halloween is October 31 and this book ends October 18, so buy it during the window and then be honest with yourself about whether the box survives thirteen days in your pantry. Item 320888, limit 10, also online.

Liquid I.V. Hydration Multiplier 30 ct – $20.99 After $8 Off

Eight dollars off puts the 30 stick box at $20.99, about 70 cents a stick, in either the sugar-free variety pack or the Lemon Lime and Strawberry pack. Given how much of this book is cold medicine, a box of electrolytes in the cabinet seems like the right call. Items 2049359, 2049358, and 1932071, limit 4 each, also online.

Here’s a more complete list of deals we found in the book…

One More Thing

The appliance sale lives entirely on Costco.com and hides behind search codes. Type WPOCT26 for Whirlpool (up to $700 off), SSOCT26 for Samsung (up to $1,000 off), or LGOCT26 for LG (up to $1,600 off). Limit 5 each, and the second-year warranty and tech support perks apply.

Two more things that are easy to skip past: Costco Optical is taking $50 off each additional pair of prescription eyeglasses when you buy one, no limit, and the pharmacy now advertises member-only pricing on pet meds like Simparica Trio and Apoquel. Neither is a coupon you clip, but both add up fast.

That’s the October book. Flip through every page at Costco Insider for the full list, and if your warehouse has something good we skipped, tell us in the comments.

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