You Can Share the Savings With Your Household
You just walked out of Costco with a trunk full of groceries, a new TV, and a year’s supply of paper towels. As you’re unloading, a thought hits you: your partner or a family member at home could really use their own card to make quick trips or pick up forgotten items. Or perhaps you’re planning a big purchase and want to ensure another adult in your household can access the member-only pricing.
Adding a family member to your Costco membership is a straightforward process designed to extend the benefits of bulk buying and exclusive pricing to your household. Whether you want to do it online from your couch or in-person at the warehouse, this guide covers every step, prerequisite, and potential hiccup you might encounter.
Understanding Costco’s Household Card Policy
Before you start the process, it’s crucial to know the rules. A standard Costco Gold Star or Business Membership includes one free Household Card. This isn’t a separate membership; it’s an additional card linked to your primary account.
The person you add must be over 18 years old and live at the same address as the primary member. Costco defines “household” strictly by shared residence for verification purposes. This card grants them nearly all the same privileges as the primary cardholder, including in-warehouse shopping, using the Costco gas station, and shopping on Costco.com.
There is one key difference: the primary member is ultimately responsible for all purchases made on the account. All charges, whether from the primary card or the household card, will appear on a single monthly statement sent to the primary member.
Adding a Family Member Online Through Your Account
The fastest way to add someone is through Costco’s website or mobile app. This method allows you to submit the request instantly without visiting a warehouse.
Gather the Required Information First
To ensure a smooth process, have this information for your family member ready before you log in:
– Their full legal first and last name.
– Their date of birth.
– The exact address they share with you (it must match your membership address).
– A valid email address for them (for digital card access and communications).
You will also need your own Costco membership number and password to access your account.
Step-by-Step Online Instructions
Navigate to Costco.com and click “Sign In / Register” at the top right. Enter your membership number and password.
Once logged in, locate the account management section. This is often found under your name or in a “My Account” dropdown menu. Look for an option labeled “Manage Membership,” “Household Card,” or “Add a Cardholder.”
Click the button to add a new household cardholder. You will be presented with a form. Fill in all the required fields for your family member accurately. Double-check the address spelling and date of birth.
Review the terms, which will reiterate the household address requirement and the primary member’s financial responsibility. Submit the form.
In most cases, the request is processed immediately. Your family member will receive an email with instructions on how to access their digital membership card via the Costco app and set up their account for online shopping. A physical card will be mailed to your shared address, typically arriving within 7-10 business days.
Adding a Family Member In-Person at the Warehouse
If you prefer face-to-face service or need the card immediately, visiting your local Costco warehouse is the best option. The process at the Membership Counter is quick, and the household member can walk out with a temporary card the same day.
Both you (the primary member) and the family member you wish to add must be present. Bring valid, government-issued photo ID for both of you. A driver’s license or passport is ideal. The IDs are used to verify ages and confirm the shared address.
Head to the Membership Desk, usually located near the entrance or exit. Let the representative know you want to add a household cardholder. They will ask for both IDs and your primary membership card.
The representative will input the new member’s information into the system, take a photo for the card, and print a temporary paper membership card on the spot. This temporary card works immediately for warehouse purchases and gas. The official plastic card will be mailed to your home address shortly.
Common Issues and Troubleshooting Steps
Sometimes, the process doesn’t go as planned. Here are solutions to the most frequent problems members face.
The Online Form Says “Address Does Not Match”
This is the most common hurdle. Costco’s system checks for an exact match. First, log into your own account and verify the address on file. Even a minor discrepancy like “Apt.” versus “Apartment” or “St.” versus “Street” can cause a mismatch.
If the addresses are identical and you still get an error, you may need to update your own membership address first. You can do this in your account settings online or by calling member services. After updating, wait 24 hours for the system to sync before trying to add the household member again.
What If the Family Member Doesn’t Live at My Address?
Costco’s policy is firm: the household cardholder must live at the same address. If they do not, they are not eligible for a free household card. Their option is to purchase a separate membership. Some members update their mailing address to the other person’s residence, but this is against policy and can lead to membership cancellation if discovered.
A legitimate alternative is to add them as a Business Member add-on if you have a Business Membership. This allows you to add cardholders who do not live with you, but they must be affiliated with your business.
The Household Member Isn’t Receiving Their Activation Email
First, ask them to check their spam or junk mail folder. The email will come from Costco or its membership services partner.
If it’s not there, the email address may have been entered incorrectly during sign-up. You, as the primary member, can log back into your account, navigate to the household card section, and verify or update the email address on file. You can also call member services at 1-888-426-7826 for assistance in resending the invitation.
Managing Your Household Card After Setup
Once added, you have control over the card. As the primary member, you can view the household cardholder’s name and status in your online account. If the situation changes—for example, if that person moves out—you are responsible for removing them from your account.
To remove a household member, you must contact Costco Member Services directly by phone or visit the membership desk in-club. You cannot remove them through the online portal. This prevents accidental removal and ensures verification.
Remember, the household member can make their own online account at Costco.com using their card number. They can set up separate login credentials, save their own shipping addresses for gifts, and track their own orders, all while the charges remain under your primary account.
Maximizing the Benefit of a Shared Membership
With two cards active, you can strategize your Costco runs. Assign one card for regular grocery trips and the other for gas or business purchases if tracking is helpful. Use the Costco app’s digital cards for convenience, so neither of you is ever stuck without a physical card.
Discuss spending expectations with your household cardholder. Since you receive one statement, it’s wise to set informal guidelines on large purchases. Utilize the shared online account features to keep an eye on order history if needed for budgeting.
Explore benefits you can both use separately, like the Costco Travel portal, optical department, or tire center. Both cards grant access to these member-only services.
Your Next Steps to Add a Cardholder
If you’re ready to proceed, the simplest path is to log into your Costco.com account now with your membership details handy. Follow the prompts in the membership section. The entire online process takes less than five minutes.
If you hit a snag with address verification, gather your IDs and plan a quick trip to your local warehouse with the family member. The in-person service is efficient and resolves most issues on the spot.
Expanding your membership to include a trusted family member unlocks greater flexibility and value from your Costco relationship. It transforms a single-person benefit into a practical resource for your entire household, ensuring no one misses out on the savings and convenience that make the membership worthwhile.
