sameday.costco.com
sameday.costco.com is Costco’s Instacart-powered website for members who want Costco groceries and other eligible warehouse items delivered to their door as fast as the same day.
What is sameday.costco.com used for?
The site lets Costco members shop many items from a nearby Costco warehouse without making a warehouse trip.
You can search for food, drinks, household goods, health products, pet supplies, and many other everyday Costco items.
Costco says some orders can arrive in as fast as one hour, but the real delivery time depends on your address and shopper availability.
You can enter your delivery address before shopping to see what products and delivery choices are available near you.
Do you need a Costco membership?
Costco says an active membership is required to buy through Costco Same-Day even though visitors may be able to browse the site before signing in.
Your Same-Day account connects with your regular Costco.com account, so membership and login changes are managed through Costco.
This setup matters because people without a Costco membership can shop Costco through Instacart in some areas, but Costco says those customers may pay higher prices.
Are Costco Same-Day prices the same as warehouse prices?
No, Costco clearly says Same-Day item prices are higher than the prices you normally see inside a local warehouse.
The higher prices help cover the service and delivery costs involved in having an Instacart shopper pick and bring the order to you.
The official Costco Same-Day information page also says the normal minimum order is $35.
This means shoppers should think about more than the delivery fee when comparing Same-Day with an in-person Costco trip.
A useful comparison is the total online basket price against the cost and time of driving, parking, shopping, loading the car, and returning home.
How does the delivery process work?
Costco Same-Day orders are picked and delivered by Instacart shoppers rather than being shipped like a normal Costco.com package.
You add products to your cart, choose an available delivery window, enter payment details, and place the order through the Same-Day website.
The Costco Same-Day Help Center says customers may see standard, priority, scheduled, recurring Schedule and Save, and some long-distance delivery choices.
Scheduled orders can normally be planned up to five days ahead, which makes the service useful for parties, busy weeks, or a planned grocery refill.
Long-distance delivery can have a higher minimum, extra fees, and fewer available products because the shopper may need to travel much farther.
What happens when an item is not available?
An Instacart shopper may contact you about a replacement when something on your list is not available.
You may receive a substitute or a refund depending on your choices and what the shopper can find.
This is one important difference from normal package shipping because another person is shopping the warehouse for you in real time.
Can Instacart Plus lower the cost?
Costco says Instacart+ members can receive lower Same-Day item prices than shoppers who do not have Instacart+.
Costco’s Instacart+ membership information says eligible members can save up to 7% on Costco Same-Day orders compared with non-Instacart+ pricing.
This benefit can matter more for people who order often because small price differences can become large across many baskets.
What extra benefit do Executive Members get?
Costco Executive Members currently receive a monthly $10 credit for one qualifying Same-Day or eligible Instacart Costco order of at least $150 before tax.
The official Executive Member offer FAQ says alcohol and prescription medication do not count toward the required $150 eligible purchase amount.
The credit expires at the end of the month, does not roll into the next month, and must be used on one qualifying transaction.
For a household already making one large Costco order each month, this benefit can reduce part of the extra cost of choosing delivery.
Can you order prescriptions or use EBT SNAP?
Eligible Costco pharmacy prescriptions can be delivered in supported areas, but the customer must be home because prescription delivery requires identification and a signature.
The prescription delivery guide explains that eligible groceries can also be added to the same cart after the prescription is selected.
Costco Same-Day also supports EBT SNAP for eligible food in supported situations, while another payment card is needed for costs such as tips, taxes, deposits, and non-eligible products.
The EBT SNAP instructions show how shoppers can split eligible and non-eligible charges during checkout.
When does Costco Same-Day make the most sense?
Costco Same-Day makes the most sense when saving time is worth more to you than getting the lowest possible warehouse price.
It can be especially useful for large grocery orders, families without easy transportation, busy workdays, bad weather, parties, or times when carrying bulky Costco products is difficult.
Shoppers focused only on the lowest item price will usually find better value by visiting the warehouse because Costco openly states that warehouse prices are lower.
The smartest way to use sameday.costco.com is to treat it as a convenience service, build a useful-sized basket, check available member benefits, and compare the final checkout total before placing the order.