Costco

What is Costco in the US?

Costco Wholesale is one of the largest warehouse club retailers in the US, founded in 1983 and headquartered in Issaquah, Washington, operating hundreds of Costco warehouses across the country plus costco.com for online orders. The Costco catalog spans grocery, electronics, appliances, home, auto, health, apparel, jewellery, and a network of member services (Costco Travel, Costco Gas, Costco Optical, Costco Pharmacy, Costco Hearing Aid Centers, Costco Auto and Costco Services). Costco operates on a membership model with a 100% satisfaction guarantee on membership fees and on most merchandise. ShopBack is a cashback portal in the US, and currently earns cashback on new Costco membership sign-ups routed through the ShopBack Costco page above.

Kirkland Signature range.

Kirkland Signature is Costco's private-label brand, spanning pantry, dairy, frozen, snacks, coffee, wine and spirits, cleaning and paper, over-the-counter medicine, vitamins, apparel basics, batteries and cookware. Kirkland Signature is positioned as a lower-price alternative to the national brand on the same warehouse shelf, typically 20 to 30 percent below the equivalent national-brand SKU, and many Kirkland Signature items are co-packed by the same manufacturer that produces the national brand. Bulk essentials on the Kirkland Signature range are the core of most Costco baskets and are the primary reason bulk buying at Costco works economically for a household at scale.

Costco membership tiers explained.

Costco operates two consumer membership tiers in the US: Gold Star at 65 US dollars per year and Executive Membership at 130 US dollars per year (verify current pricing on costco.com). Both grant access to Costco warehouses, costco.com, Costco Travel, Costco Gas, Costco Optical, Costco Pharmacy and Costco Hearing Aid Centers at Costco member pricing. Executive Membership adds a 2 percent annual reward on eligible Costco and Costco Travel spend (capped at 1,000 US dollars per year) plus enhanced terms on select Costco Travel packages and Costco Services. Business Membership at the same base fee as Gold Star is aimed at resellers and small businesses and adds business-hours warehouse access. All tiers carry Costco's 100% satisfaction guarantee.

Costco Executive vs Gold Star membership.

Executive Membership typically pays back for households spending above about 3,250 US dollars per year at Costco (the break-even point where the 2 percent Executive reward covers the extra 65 US dollars in annual fee). Households below that threshold usually get more value from Gold Star; households well above it benefit from the Executive reward plus enhanced Costco Travel terms. A new Costco membership sign-up at either tier initiated from the ShopBack Costco page earns cashback at the current published tier above.

Costco return policy.

Costco runs a 100% satisfaction guarantee on membership fees (refundable at any time on request) and on most Costco merchandise (returnable at any time with no fixed return window on the majority of the catalog). Narrower return windows apply to electronics (typically 90 days on TVs, computers, tablets, cameras, drones, projectors and major appliances), diamonds, cigarettes, alcohol where restricted by state law, tyres and batteries, gold bars and silver coins, and custom items. Returns are accepted at any US Costco warehouse regardless of purchase channel, or via costco.com Return Center for online orders.

Cheapest bulk groceries US.

For US households optimising for lowest cash outlay on a large-basket grocery run (pantry staples, cleaning and paper, meat, dairy, frozen, coffee, snacks), Costco is typically most competitive on per-unit price via bulk buying and Kirkland Signature substitution, with warehouse club Everyday Low Price on multi-packs undercutting Walmart and Amazon on the same national-brand SKU at comparable pack size. For smaller weekly baskets or perishables a household cannot finish before spoilage, Walmart or a regional grocer typically wins on total cost. Bulk buying works best when households have the storage, freezer space and consumption rate to clear a warehouse-club pack size before expiry.

Costco electronics deals US.

For TVs (Samsung, LG, Sony, Hisense, TCL), laptops, tablets, headphones, small kitchen appliances and gaming accessories, Costco is typically most aggressive during the monthly Costco Sale Book windows, the Black Friday event across late November, Cyber Monday Online-Only, and Post-Holiday clearance. Costco TVs and laptops often ship with an extended manufacturer warranty (Costco's 2-year warranty extension) plus Costco Concierge tech support, effectively adding value on top of the sticker price versus the same SKU at Best Buy or Walmart. The 100% satisfaction guarantee applies to Costco electronics returns within the electronics return window.

Costco vs Sam's Club vs BJ's price US.

All three are warehouse club retailers in the US with membership tiers, private-label ranges and bulk pack sizes. Costco typically wins on the Kirkland Signature range, Costco Travel, Costco Gas station pricing in most metros, and the Executive 2 percent reward economics for high-spend households. Sam's Club (Walmart-owned) competes hardest on Member's Mark private label, Scan and Go mobile checkout, and Sam's Club Plus tier free shipping. BJ's Wholesale (US East Coast focused) typically accepts manufacturer coupons on top of club pricing, which the other two do not. No single warehouse club is cheapest across the board; comparing the exact bulk pack size on both club-brand and national-brand SKUs before renewing is the reliable move.

Costco Sale Book monthly deals.

The Costco Sale Book is Costco's monthly member savings booklet covering roughly two to four weeks of instant-savings pricing on hundreds of Kirkland Signature and national-brand SKUs across grocery, electronics, appliances, home, auto and health. The Sale Book is mailed to Executive Members and posted on costco.com, and pricing applies automatically at the register or online checkout with no promo code required. Sale Book windows typically stagger across the month with new SKUs added weekly. Deepest cuts usually land on Kirkland Signature pantry, cleaning and paper, small kitchen appliances, seasonal apparel and TVs.

Kirkland Signature savings.

Kirkland Signature substitution is the primary saving lever inside a Costco basket. Bulk essentials on the Kirkland Signature range (paper, cleaning, coffee, wine, vitamins, batteries, water, pantry basics) typically sit 20 to 30 percent below the equivalent national brand on the same shelf, with many Kirkland Signature items co-packed by the same manufacturer as the national brand. Households that swap national-brand staples for Kirkland Signature on the recurring lines usually recover the Executive Membership fee inside a handful of large baskets.

Costco Black Friday 2026.

Costco Black Friday 2026 lands on the last Friday of November, with the Costco Black Friday event typically stretching the full Black Friday weekend into Cyber Monday. Pricing is applied automatically as Sale Book and Online-Only markdowns without a promo code, and is available to all Costco members regardless of tier. Deepest cuts usually land on TVs, laptops, tablets, small kitchen appliances, mattresses, jewellery, tyres and Kirkland Signature seasonal food. A Cyber Monday Online-Only extension typically follows, and Post-Holiday clearance runs the week after Christmas through mid-January on remaining seasonal stock.

Costco promo code US 2026.

Costco's own promotions typically apply automatically as Sale Book event pricing, Warehouse Hot Buys and Online-Only markdowns rather than as always-on promo codes at checkout. Occasional member-only offers on select Costco Travel packages and costco.com categories surface at checkout without a code. Third-party voucher codes pasted at Costco checkout, or any voucher or promo code not featured on ShopBack, will block cashback per the exclusion list. Currently ShopBack US cashback on Costco applies to new Costco membership sign-ups only, not to regular Costco purchases.

Costco Travel deals.

Costco Travel is Costco's member-only travel booking arm covering cruises, vacation packages, hotels, car rentals and theme-park tickets, with pricing set on a Costco member-exclusive basis rather than as a promo-code discount. Bookings settle at the Costco member rate with additional Executive Member benefits on select packages (a Costco Cash Card of a set value tied to package price, or bonus onboard credit on cruises). Costco Travel is bookable at costcotravel.com or by phone and operates only for Costco members. The Executive 2 percent reward applies to eligible Costco Travel spend within the 1,000 US dollar annual cap.

Costco warehouse vs online.

Costco warehouses and costco.com share overlapping but not identical catalogs. Warehouse-only SKUs typically include fresh bakery, deli, meat, seafood, produce, cakes, hot rotisserie chicken, fresh flowers, Costco Optical fittings and Costco Hearing Aid Center appointments, plus single-warehouse clearance items. Online-only SKUs typically include larger appliances, furniture and bulk shipments where warehouse floor space is impractical, plus certain Costco Travel packages. Sale Book pricing usually applies at both. Costco.com typically carries a shipping fee on most orders (free on select big-ticket categories), while warehouse pickup is fee-free.

How do I earn cashback on Costco through ShopBack?

ShopBack is a cashback portal in the US. Sign in at shopback.com, open the Costco merchant page above, and click through to the Costco new-membership sign-up flow in the same browser session. Cashback on Costco through ShopBack currently applies to new Costco membership sign-ups only (New Executive Membership and New Gold Star Membership) at the tiered rates published in the rate panel above; regular costco.com purchases and existing-member renewals or upgrades are excluded per the exclusion list. Clear cart, close the Costco app, accept all Costco cookies, and avoid adblockers, VPNs and third-party links to protect tracking. Any voucher or promo code not featured on ShopBack will block cashback on the sign-up.

Can I stack ShopBack cashback with Costco membership benefits?

Cashback stackability with Costco's own mechanics is conditional. ShopBack cashback on Costco is currently offered on new Costco membership sign-ups only (Executive and Gold Star tiers), so the primary stack question is with the membership itself: a new Gold Star or Executive sign-up initiated from ShopBack earns the published cashback rate on the sign-up fee, and Costco's own benefits (Executive 2 percent reward, Costco Travel member pricing, Costco Gas access, Kirkland Signature warehouse pricing, Sale Book events, 100% satisfaction guarantee) apply on the new membership going forward independently of the cashback. Renewals, tier upgrades of existing Gold Star, Business or Business Executive memberships, gift-card and voucher purchases, and any regular costco.com order are excluded from cashback per the rate panel. Clear cart, close the Costco app, accept all cookies from Costco, avoid adblockers and VPNs, and verify tracking within the published 2-day tracked and 95-day confirmed windows.