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Costco’s U.S. membership rules allow a dissatisfied member to cancel for a membership-fee refund, bring up to two guests into a warehouse, and designate one eligible household cardholder. A membership stays active through the last day of its expiration month, but the renewal method and timing can affect how the next 12 months are counted. These are U.S. rules; check Costco’s current policies for your location because terms can change.
Can I return or cancel my Costco membership?
Yes. Costco says it will cancel and refund a membership fee at any time if the member is dissatisfied. That is a membership-fee guarantee, not a promise that every item bought at Costco can be returned at any time. Costco’s return-policy FAQ states the membership guarantee and separately describes merchandise-return exceptions.
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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →For cancellation, Costco’s customer-service results identify two routes for the Primary Member: speak with staff at a warehouse membership counter or contact Member Services. Confirm the current process with Costco before you go, since the exact steps may change. If you are an affiliate or household cardholder rather than the Primary Member, ask Costco who must make the cancellation request for your account.
The guarantee is about the membership fee. Merchandise returns follow their own product-specific terms; the policy lists exceptions, including a 90-day return window for certain electronics and restrictions on some other products. Do not use the membership-refund statement to infer that an item can be returned outside the merchandise policy.
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Can I bring a guest to Costco, and can the guest buy things?
Under Costco’s U.S. warehouse policy, a member may bring up to two guests. The member is responsible for their guests and any children accompanying them, and only Costco members may purchase items under the general policy. In other words, being admitted as a guest does not itself give someone shopping or checkout privileges.
Costco’s Member Privileges and Conditions are the source for the guest limit, responsibility rule, and member-only purchasing rule. A practical way to avoid a checkout problem is to have the member who invited the guest make the purchase. Do not assume a guest can pay for their own basket simply because a member accompanied them.
Some products may be subject to local legal exceptions. That qualification is not a general guest-shopping permission: the published policy remains that only members may purchase items. If a particular product or local rule matters to your visit, ask Costco directly rather than relying on a broad assumption about guest access.
Who qualifies for a Costco household card?
A Primary or affiliate member may designate one household cardholder who is at least 16 years old and lives at the same address. Costco’s Gold Star description characterizes the membership as covering a primary member and one free household member; the current general conditions provide the applicable age and address requirements.
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The household card is for the named eligible person, not a way to lend the primary member’s card to a friend or relative who lives elsewhere. Costco says membership cards are not transferable. If the household’s address or eligible cardholder changes, check with Costco about updating the designation instead of passing a card between people.
Costco’s current membership conditions cover card eligibility and nontransferability. Its Gold Star membership FAQ describes the primary-plus-household-member structure. Because an older membership-specific FAQ may not capture every current rule, use the general conditions for eligibility details.
How many people can use one Costco membership?
For cardholding purposes, the membership includes the primary member and one designated eligible household cardholder—not an unlimited number of people sharing one account. The primary member may also bring up to two guests into the warehouse, but those guests do not become cardholders and generally cannot make purchases under the member-only purchasing rule.
That distinction helps resolve a common point of confusion: the household card is an additional membership card for a qualifying person at the same address, while guests are visitors accompanying a member. Neither the guest allowance nor the household card makes the primary member’s card transferable. Costco’s rules set these privileges out in its Member Privileges and Conditions.
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For digital access, Costco says each member has a unique membership number and needs a separate Costco.com account to access their own digital membership card. A shared login or a picture of another person’s card is not a substitute for each eligible cardholder’s own card and account. Physical membership cards remain accepted.
When does a Costco membership expire?
Costco’s customer-service results say a membership remains active through the last day of its expiration month. So an expiration month is not the same as an expiration on the first day of that month. Check the date shown on your membership or account, and verify the current rule with Costco if a visit falls near the end of the month.
Costco’s results also say an active membership can be renewed within 90 days before its expiration date. For an expired or inactive membership, the listed options are online renewal within 90 days after expiration, or renewal in person or by phone at any time. Since the renewal-window details are surfaced in Costco’s customer-service search results, rather than a fully described policy page in the available materials, check the current Costco membership-expiration information before relying on a precise online window.
Does renewing late change the next expiration date?
It can. Costco’s Member Privileges and Conditions say that a renewal made within two months after the membership year expires extends the membership for 12 months from the original expiration date. A renewal made more than two months after expiration extends it for 12 months from the renewal date.
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This creates two timing questions that should not be confused. The customer-service renewal information describes when a renewal channel is available; the membership conditions describe how the next 12-month period is calculated. A person may still be eligible to renew after a longer gap, but that does not necessarily mean the new term will be backdated. Check the current conditions before deciding whether to renew immediately or later.
How does Costco Auto Renewal work?
If Auto Renewal is enabled, Costco says the saved payment card is charged on the first day of the renewal month. To avoid that charge, Costco advises cancelling Auto Renewal at least 72 hours before the first day of that month. Members can manage the setting online or at a membership counter.
Do not wait until the expiration date to act if you want to prevent an automatic charge: the charge date is tied to the first day of the renewal month, and Costco’s stated lead time is 72 hours before that day. Use Costco’s Auto Renewal instructions to review the current account controls and timing. Renewal fees and eligible payment methods can change, so consult Costco’s current information rather than relying on an old fee amount or a saved payment card from a prior renewal.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should I check before a warehouse visit or renewal?
A few details are worth confirming in advance, especially if you are close to expiration or going with someone who is not a member:
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- For a guest visit: Make sure a member is accompanying the guest, keep the group within the two-guest limit, and have the member handle purchases. The member is responsible for guests and children.
- For a household card: Confirm the designated person is at least 16 and lives at the same address as the member. Do not lend a membership card to someone outside the eligible household.
- For an expiring account: Check the expiration month and the specific renewal options Costco currently shows for the account. The membership remains active through the final day of that month under the customer-service information.
- For a late renewal: Note whether the renewal is within two months after the membership year ends, because Costco’s conditions distinguish that period when calculating the next term.
- For Auto Renewal: Review the setting and saved card before the first day of the renewal month; Costco says to cancel at least 72 hours beforehand to avoid the charge.
- For a refund request: Treat membership cancellation separately from returning merchandise, and contact Costco or visit the membership counter to confirm the current cancellation process.
What the rules do—and do not—allow
In short, the Costco membership policies provide a defined set of privileges: a membership-fee refund if dissatisfied, limited guest admission, one eligible household cardholder, and renewal timing rules. They do not turn a guest into a member, authorize card sharing with people at another address, or erase item-specific merchandise return limits.
These details come from Costco’s U.S. policies and customer-service pages. Costco says its Member Privileges and Conditions may change without prior notice, and local rules or policies may differ outside the United States. For a decision involving a particular membership or purchase, the current Costco page or a Costco representative is the final point of confirmation.
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Frequently Asked Questions
Can I renew Costco membership by phone?
Costco’s customer-service results say an expired or inactive membership can be renewed by phone at any time. Because channel availability can change, confirm the current option with Costco before relying on it.
Can I use a screenshot of my Costco digital membership card?
No. Costco’s digital-card FAQ says screenshots cannot be scanned at registers. A member can access their digital card through their own Costco.com account, and physical membership cards are still accepted.
Does a membership refund mean I can return any Costco product?
No. The membership-fee guarantee and merchandise-return policy are separate. Costco lists product-specific exceptions, including a 90-day window for certain electronics and restrictions for some other items.
