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, since Costco's Everyday Low Price positioning does not typically issue site-wide voucher codes. 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. Sticking to Costco's own automatic Sale Book pricing and member-only offers is the safer route. Currently ShopBack US cashback on Costco applies to new membership sign-ups only, not to regular Costco purchases, per the rate panel above.

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. New Costco memberships started from the ShopBack Costco page earn cashback at the current published tier above.

Kirkland Signature savings

Kirkland Signature is Costco's private-label brand spanning pantry, dairy, frozen, snacks, coffee, wine and spirits, cleaning, paper, over-the-counter medicine, vitamins, apparel basics, batteries and cookware. Kirkland Signature is positioned in the warehouse club as a lower-price alternative to the national-brand SKU on the same shelf, typically 20 to 30 percent below the equivalent national brand, and many Kirkland Signature items are co-packed by the same manufacturer as the national-brand SKU. Consumer reviews rate the Kirkland Signature range as generally comparable to or better than national brands on core pantry, cleaning and vitamins staples. Bulk buying at Costco warehouse pricing plus Kirkland Signature substitution is the primary saving strategy for households at scale.

Costco Black Friday 2026

Costco Black Friday 2026 lands on the last Friday of November, with Costco typically running a Black Friday event that stretches the full Black Friday weekend into Cyber Monday. Costco's Black Friday event is applied automatically as Sale Book and Online-Only pricing 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. Post-Holiday clearance runs the week after Christmas through mid-January on remaining seasonal stock. A new Costco membership sign-up started from the ShopBack Costco page earns cashback at the current published tier.

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 the warehouse club Everyday Low Price on multi-packs undercutting Walmart and Amazon on the same national-brand SKU at comparable pack size. Sam's Club and BJ's Wholesale compete in the same warehouse club category. For smaller weekly baskets or perishables that 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 Executive vs Gold Star membership

Costco Gold Star is the standard consumer Costco membership at 65 US dollars per year (verify current pricing on costco.com), granting warehouse access, Costco.com ordering, Costco Travel booking and Costco Gas access at member pricing. Costco Executive Membership is the premium tier at 130 US dollars per year and adds a 2 percent annual reward on eligible Costco and Costco Travel purchases (capped at 1,000 US dollars per year), extra benefits on Costco Auto and Costco Services, and higher-tier terms on select Costco Travel packages. The Executive tier typically pays back for households spending above about 3,250 US dollars per year at Costco (the break-even point where the 2 percent reward covers the extra 65 US dollars in annual fee). The 100% satisfaction guarantee applies at both tiers. A new Costco membership sign-up at either tier started from the ShopBack Costco page earns cashback at the current published tier.

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 operates only for Costco members and is bookable at costcotravel.com or by phone. The 2 percent Executive Membership reward applies to eligible Costco Travel spend, capped at the 1,000 US dollar annual cap. A new Costco membership sign-up started from the ShopBack Costco page earns cashback at the current published tier, and Costco Travel becomes accessible on the same account.

Costco electronics deals US

For TVs (Samsung, LG, Sony, Hisense, TCL), laptops (HP, Lenovo, Dell), 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 warranty (Costco's 2-year manufacturer 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. For higher-end laptops and gaming consoles, Best Buy and Amazon US often compete hardest around Black Friday and Cyber Monday, so comparing the exact SKU across retailers is the reliable route. 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 2 percent Executive reward economics for high-spend households. Sam's Club (Walmart-owned) typically competes hardest on Member's Mark private label, Scan and Go mobile checkout, and Sam's Club Plus tier free shipping. BJ's Wholesale operates primarily on the US East Coast and typically accepts manufacturer coupons on top of club pricing, which the other two do not, and competes on Berkley Jensen and Wellsley Farms private label. No single warehouse club is cheapest across the board on every SKU; the reliable saving strategy is to compare the exact bulk pack size on both club-brand and national-brand SKUs before renewing a membership. A new Costco membership sign-up from the ShopBack Costco page earns cashback at the current published tier.

Costco membership tiers explained

Costco operates two consumer membership tiers in the US: Gold Star at 65 US dollars per year (verify current pricing on costco.com) and Executive Membership at 130 US dollars per year. 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 adds a 2 percent annual reward on eligible spend, capped at 1,000 US dollars per year, plus enhanced Costco Travel and Costco Services terms. 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 on membership and on most merchandise, with narrower return windows on electronics, appliances and diamonds. A new Costco membership sign-up started from the ShopBack Costco page earns cashback at the current published tier; renewals and upgrades are excluded per the rate panel.

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 certain single-warehouse clearance and treasure-hunt 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, though some Warehouse Hot Buys are warehouse-exclusive. Costco.com typically carries a shipping fee on most orders (free on select big-ticket categories), while warehouse pickup is fee-free. New Costco membership sign-ups started from the ShopBack Costco page earn cashback at the current published tier, and both warehouse and online access follow membership activation.

Costco operates 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 for 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 (1.00 carat and above require a Costco Diamond Guarantee card at return), cigarettes, alcohol where restricted by state law, tyres and batteries (limited-warranty terms), gold bars and silver coins, and custom-configured items. Returns are accepted at any US Costco warehouse regardless of purchase channel, or via Costco.com Return Center for online orders. Rejected, cancelled, refunded, exchanged or returned Costco membership sign-ups do not earn cashback per the ShopBack exclusion list.

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; 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.

Costco

Up to 5% Cashback

New Executive Membership, Business Executive Membership Sign Up

New Gold Star Membership, Gold Star Business Membership Sign Up

2.5%

Take note

Cashback is only available on new Costco membership sign-ups. Purchases made at Costco are not eligible for cashback.

Cashback timeline

Purchase

Tracked in

2 days

Confirmed in

95 days

Terms and exclusions

Exclusions

You won't get Cashback on:

Any Gift Card, Voucher or store credit purchase
Any Gift Card or Voucher redemption
Purchases made with Vouchers or Promo codes not featured on our platform
Fees · Taxes · Service charges · Shipping and delivery

Refunds, cancellations and no-shows

Any rejected, cancelled, refunded, exchanged or returned purchases will not be eligible for Cashback.

Tracking disclaimers

Your Cashback may be tracked at a different rate initially and adjusted to the correct rate when we confirm the transaction details.

Other terms and conditions

Costco terms and conditions

Gold Star, Business, and Business Executive renewals and upgrades is not eligible for cashback.
Cashback is only available on new Costco membership sign-ups. Purchases made at Costco are not eligible for cashback.

ShopBack terms of use

Never miss Cashback on Costco

Get instant alerts on Cashback when you shop online with the ShopBack extension.

Cashback tips

Remember to check T&Cs
Check carefully for Cashback exclusions and caps before you buy or book to avoid disappointment. Don't forget the terms and conditions on any promotion and campaign pages.

Restart from this platform every time
Complete your shopping in one go: Always start from this platform to visit the store directly, for every new transaction. If your store visit is interrupted by an app update or download screen, restart your shopping from our platform.

Don't use adblockers or click on other links
Don't click on any third party links or extensions or use VPN or adblocking software, as they could result in your Cashback not being tracked. Some examples include: Facebook ads, Google Ads, other loyalty or cashback extension links.

Empty shopping cart first
For Costco, you need to clear your cart, close the Costco app, open this platform to visit the Costco app or website and complete your purchase there in order to earn Cashback. You need to do this for each purchase.

Restart from this platform if payment fails
If you encounter payment errors during your purchase, you should restart your visit to the Costco from this platform to ensure that your Cashback continues to be tracked.

Accept all cookies from the store
Costco can only confirm to us that a transaction is recorded if you accept all cookies that appear on their pages.

Costco Shopping Guide on ShopBack US

Do subscription or recurring Costco purchases earn ShopBack cashback?

Cashback typically applies to the initial Costco subscription sign-up when the click-through starts from the ShopBack Costco merchant page. Renewal charges billed on subsequent months usually do not qualify because they are not tied to a fresh affiliate click. Check the ShopBack Costco merchant page for the current subscription eligibility rule.