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Costco

We generate and send your cancellation letter to Costco by registered mail

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Cancel Costco membership & orders - Guide 2026

Recipient

Costco
1 Costco Way
98027 Issaquah USA

Digital registered letter with receipt of acceptance

Subject : Cancellation of Costco agreement

Dear Sir or Madam,

This letter constitutes formal notice that I wish to terminate the agreement relating to the Costco service.
This notice expresses a firm, clear, and unequivocal intention to cancel the agreement, effective at the earliest permissible date or in accordance with any applicable contractual notice period.

Please take all appropriate measures to:
– cease any billing from the effective cancellation date;
– confirm in writing that this request has been processed;
– and, where applicable, provide a final statement or confirmation of balance.

This cancellation is sent by certified electronic mail. Sending, timestamping, and content integrity are recorded, producing reliable electronic evidence. You therefore have everything needed to process this cancellation in line with rules on written notice and contractual freedom.

Under applicable personal data protection rules, I also request that you:
– delete any data not required for legal or accounting obligations;
– close any associated personal account;
– and confirm effective erasure where privacy rules apply.I retain a full copy of this notice along with proof of mailing.

Sincerely,
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Costco

Costco

How to cancel Costco (UK) membership or orders in 2026. Step-by-step methods, refunds, rights under UK law and savings you can make.

https://costco.co.uk
Issaquah, USA
Shopping Retail

Cancellation at a glance

fastest method (name it + why)Online - use "My Orders" (orders cancellable directly in account within 1 hour of placement); in-warehouse membership desk for immediate membership cancellation
effective delayImmediate for online order cancellation (when available); in-warehouse membership cancellation processed at the desk
notice periodLess than 1 hour for order cancellations via account; membership cancellations take effect immediately when processed in-warehouse
cancellation fee (amount or 0)£0 - Costco will cancel and refund a membership fee in full at any time if member is dissatisfied
minimum commitmentAnnual membership term - renews annually
phone + hours0800 0324 324 - Not published by Costco
postal address for registered letterCostco, 1 Costco Way, 98027 Issaquah, USA

What is Costco

Overview

Costco Wholesale Corporation is a membership warehouse club that sells brand-name groceries, electronics, appliances and services to members at low margins. Costco UK operates an e-commerce site and local warehouses accessible to members.

How Costco works

Customers join on an annual membership to shop in warehouses and online. Memberships include Gold Star, Business and Executive tiers offering different benefits and a 2 percent rewards program on Executive plans.

Company facts

Full legal nameCostco Wholesale Corporation
HeadquartersIssaquah, United States
CEORon M. Vachris
Founded1976
Employees341,000
Subscribers81 million
Annual revenue$269.912bn

How to cancel Costco

methodsteps summaryestimated timeproof obtaineddifficulty
Web (orders)Log in > My Orders > Cancel Order (available only within 1 hour of placement)Immediate if within 1 hourOn-screen confirmation in accountEasy
Web (membership)Contact customer care via membership pages or visit warehouse membership deskSame-day if in-warehouse; web requests processed within Costco timesEmail confirmation or in-person receiptMedium
PhoneCall 0800 0324 324 to request order or membership supportHold and call time vary - Not published by CostcoCall reference number or email confirmation if requestedMedium
EmailEmail [email protected] with order or membership detailsResponse time Not published by CostcoEmail replyMedium
In-warehouseVisit membership desk to cancel membership and get an immediate refund if eligibleImmediateReceipt at deskEasy
Post (registered letter)Send cancellation request to Costco postal address (see contact)Postal delivery time plus processing; Not published by CostcoProof of posting and any Costco responseHard

Web - cancel an order placed through Costco.co.uk

  1. Sign in to your account at Costco.co.uk.
  2. Open "My Orders" and locate the order you want to cancel.
  3. Click "Cancel Order" if the option is shown. This appears only if it has been less than 1 hour since order placement.
  4. Save or screenshot the on-screen confirmation as proof.
  5. Contact Costco order support if the cancel button is not available.

Phone - cancellations and help

  1. Call 0800 0324 324 and state whether you want to cancel an order or your membership.
  2. Provide membership number, order number and name on account.
  3. Ask the advisor for an email confirmation or reference number for your records.
  4. If membership cancellation is requested, ask whether a full refund will be issued per Costco policy.

Email - written cancellation

  1. Compose an email to [email protected] with your membership number, full name and clear request to cancel.
  2. Attach a screenshot of your order or membership card if available.
  3. Keep the sent email and any reply as proof.

In-warehouse - cancel your membership in person

  1. Bring your membership card and photo ID to the membership desk at a Costco warehouse.
  2. Tell the representative you want to cancel and request a full refund if you are dissatisfied.
  3. Obtain a printed receipt confirming the cancellation and refund.

Post - registered letter

  1. Address a registered letter to: Costco, 1 Costco Way, 98027 Issaquah, USA.
  2. Include your membership number, full name, contact details and explicit cancellation request.
  3. Retain proof of posting and wait for written confirmation from Costco. Processing times are not published by Costco.

Cancel by reason

Cooling-off (14-day right to cancel)

Under the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, consumers have a 14-day cancellation period for most distance contracts. If you bought a membership or goods online, you can cancel within 14 days of the contract or delivery, inform Costco and receive a refund. See the legislation: Consumer Contracts Regulations 2013.

Required proof for cooling-off

Provide the date of purchase, order number or membership number and a clear statement of your decision to cancel. Keep copies of emails or proof of posting.

Moving abroad or relocation

Costco does not publish a specific rule allowing cancellation for moving in the UK help pages. If moving prevents performance of the contract, rely on general consumer rights and request cancellation in writing. If Costco refuses, escalate using Citizens Advice guidance.

Price increase

If Costco increases membership prices during a paid term and you have not agreed to the change, ask Costco for cancellation and refund. Costco’s official pages do not publish a specific automatic right for price increases; use the Consumer Rights Act 2015 if the change is unfair.

Death of subscriber

Costco does not publish a specific policy for membership termination on the death of a member in its public UK help pages. For estate executors, submit documentation to Costco customer care to request account closure. If Costco requires proof, provide a death certificate and proof of executor status. If Costco refuses, contact Citizens Advice for next steps.

Legitimate grounds accepted by Costco (from research)

Costco explicitly accepts member dissatisfaction and will cancel and refund a membership fee in full at any time if the member is dissatisfied. For other legitimate grounds, Costco’s public documentation is limited; request cancellation in writing and retain proof. Applicable law: Consumer Contracts Regulations 2013 and Consumer Rights Act 2015.

End of commitment

Memberships are annual and renew automatically. To avoid renewal, cancel before renewal date or within renewal windows described on your membership statement. Costco’s renewal rules are described on the membership help pages: Costco membership.

Negotiate or save

Before you cancel: how to negotiate with Costco

Costco’s documented retention offers are limited in public resources. Research shows Costco will fully refund a membership fee if a member is dissatisfied, but no standard discounted retention offers are published. To ask for retention: call 0800 0324 324, state your reasons, request alternative membership pricing or a pro rata refund, and request written confirmation of any offer. If visiting a warehouse, speak at the membership desk and ask for a printed offer or refund.

What cancelling saves - concrete math

Use these plan figures from Costco UK and compute yearly cost as monthly equivalent times 12 where needed.

Gold Star Membership: annual cost £42.00. Monthly equivalent = £42.00 / 12 = £3.50; calculation: £3.50 x 12 = £42.00 per year.

Business Membership: annual cost £30.00. Monthly equivalent = £30.00 / 12 = £2.50; calculation: £2.50 x 12 = £30.00 per year.

Executive Gold Star Membership: annual cost £84.00. Monthly equivalent = £84.00 / 12 = £7.00; calculation: £7.00 x 12 = £84.00 per year.

If you cancel an Executive Gold Star membership costing £84.00 per year and switch to shopping at Aldi (no membership fee), your direct membership saving is £84.00 per year.

Cheapest real alternative named in competitor research: Aldi with no membership fee - Price annual: £0.00.

What to do after cancelling Costco

Confirm refund and final billing

After cancellation, check for an email or printed receipt confirming refund. Costco’s refund policy states they will refund membership fees in full if the member is dissatisfied. For product returns and refunds consult Costco payments and refunds. Jewellery refunds may take 7 to 10 days after inspection by a Costco Gemologist.

Data, access and re-activation

Keep copies of your cancellation confirmation and any refund evidence. If you wish to rejoin later, purchase a new membership via the website or at a warehouse. If you cancelled online orders, verify that any refunded card transactions appear on your bank statement within the timescales your card issuer sets.

Next steps and practical checklist

Use this checklist to close your Costco account or cancel an order efficiently.

  • Locate your membership number and order number before contacting Costco.
  • If cancelling an online order, log in immediately and try "My Orders" (only available within 1 hour after order placement).
  • Call 0800 0324 324 and ask for a confirmation reference for any phone cancellation.
  • If cancelling in-warehouse, get a printed receipt at the membership desk showing cancellation and refund.
  • For written proof, email [email protected] and keep sent and received messages.
  • If sending a registered letter, send to: Costco, 1 Costco Way, 98027 Issaquah, USA and keep proof of posting.
  • If you paid by credit card and the refund does not appear, contact your card issuer for chargeback or Section 75 advice.

Pros & cons

Pros

Low prices on bulk and brand-name items for members.
100% satisfaction guarantee and membership refund if dissatisfied.
Executive membership offers a 2% reward on most purchases (caps apply).
Wide selection including groceries, electronics and services.

Cons

Annual membership fee (examples: £42.00, £84.00) is required to shop at warehouses.
Some returns (electronics) have a 90-day limit; jewellery refunds require inspection and paperwork.
Specific policies for exceptional cases (death, relocation) are not fully published on Costco UK help pages.

Competitors & alternatives

Below are common alternatives people compare for this type of subscription.

Aldi

£0

/ mois

Aldi is a discount supermarket focusing on a limited range of own-brand products.

Lidl

£0

/ mois

Discount supermarket with frequent non-food special offers.

Asda

£0

/ mois

Major supermarket with broad range and strong online delivery.

Countries where Costco is available

Costco is available in many countries. Here are several frequently cited markets:

United Kingdom

Subscription & cancellation

What you should know about Costco subscription and cancellation terms:

Subscription type

Automatic monthly or yearly renewal. Billing is handled by the primary account or the signup platform.

Renewal

Renewal runs automatically at the end of each billing period while the subscription stays active.

Cancellation

Cancel from account settings or the app store used at signup. Access usually continues until the paid period ends.

Refunds

Refunds depend on billing date, country, and payment channel.

Family plan

The family plan admin can add or remove members per the service’s household and age rules.

Commitment

Plan changes and cancellations follow the provider’s terms and local law.

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