Costco Kumamoto Mifune Warehouse: Early-Bird Membership Deal & Sign-Up Guide (Mifune, Kamimashiki)
2021.03.11

A Sarukuma writer visits the brand-new “Costco Kumamoto Mifune Warehouse” in Mifune Town, Kamimashiki District. Price guide: from ¥1,000. Family-friendly tips, access info, and opening hours all in one place.
Hi there, this is Gussan!
Opening on April 1, 2021 in Mifune Town, Kamimashiki District, Kumamoto Prefecture, is the much-anticipated
Costco Kumamoto Mifune Warehouse

In this article, I’ll walk you through how to sign up for Costco membership at the Kumamoto Mifune location.
For more general info on Costco Kumamoto Mifune, check this out↓
Costco Kumamoto Mifune Warehouse: Opening April 1! Latest Updates (Mifune, Kamimashiki)
Costco Kumamoto Mifune: Membership Types
- Individual Membership (Gold Star Member)
Annual fee: ¥4,400 (excl. tax) — the most basic membership tier!
Anyone aged 18 or older can sign up, including students. - Business Membership
Annual fee: ¥3,850 (excl. tax) — recommended for businesses and sole proprietors!
Open to those aged 18 and older running restaurants, companies, or sole-proprietor businesses. You’ll need to bring supporting documents to register. - Executive Membership
Annual fee: ¥9,900 (incl. tax) — Costco’s top tier, packed with perks for frequent shoppers!
Executive members receive exclusive discount coupons for extra savings.
Gold Star and Business Members can also upgrade to Executive at any time.
Costco Kumamoto Mifune: How to Get an Early-Bird Membership Card
In celebration of the new opening, an early-bird campaign offering ¥1,000 off the standard annual fee is currently running for new sign-ups.
The campaign runs until March 31, the day before the grand opening.
Once you have your membership card, you can shop not only at Costco Kumamoto Mifune,
but at any Costco worldwide, plus Costco Online.
You might be tempted to wait until after opening day, but expect big crowds — and registering on the spot will eat up serious time and energy.
We strongly recommend signing up in advance.
《Two ways to get your membership card》
【Option 1】Fill out the application at the store and pick up your card there
【Option 2】Apply online first, then pick up your card at the store
- New membership applications can be submitted online, but cards can only be picked up in-store.
《How to sign up early at Costco Kumamoto Mifune》
① Go to the membership registration page
https://www.costco.co.jp/membership
② Choose your membership type.
③ In my case, I selected “Individual Membership Registration”
④ Then choose your membership tier.
⑤ Check the box for “Register using the Kumamoto Mifune Warehouse Early-Bird Discount” and a temporary registration form will appear.
⑥ Once you finish entering your details, a confirmation email will arrive at the address you specified.
Save the reception number from the email — you’ll need it later.
By the way, even if you head straight to the store, you’ll get a queue ticket at the entrance, and customers who completed the online pre-registration are called to the in-store counter first.
⑦ Visit the store, take a number, and wait for your turn at the counter.
⑧ Show your reception number from the email, and the staff will explain your card and the points-rewards system.
They’ll also take your photo for the card on the spot.
It’s a black-and-white shot, but you might want to tidy yourself up a bit before heading in!
Payment options were cash or Mastercard credit only.
Along with the card, I received this Costco catalog at the counter.
And finally — I have my Costco card in hand!
I was so excited I tried to snap a commemorative photo, but the sun was so bright I couldn’t open my eyes — and wow, the card looks tiny!
A bit of a lackluster shot, but I can’t wait for my Costco life to begin in April.
Cha-ching…
For more info on Costco Kumamoto Mifune, check this out↓
Costco Kumamoto Mifune Warehouse: Opening April 1! Latest Updates (Mifune, Kamimashiki)
Costco Kumamoto Mifune Warehouse: Store Info
| Website | https://www.costco.co.jp/ |
| Hours | Daily 10:00 AM – 8:00 PM Holidays 9:00 AM – 8:00 PM |
| Closed | January 1 (New Year’s Day) |
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Costco Kumamoto Mifune Warehouse Store Info
-
Address
Mifune Town, Kamimashiki District, Kumamoto Prefecture
-
Hours
Daily 10:00 AM – 8:00 PM / Holidays 9:00 AM – 8:00 PM
-
Closed
January 1 (New Year’s Day)
-
Website
-
No
Tatami seating
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No
Private rooms
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No
Kids’ tableware
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No
Kids’ chairs
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No
Diaper-changing station
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No
Stroller access
Frequently Asked Questions
What’s a recommended family-friendly spot in Mifune Town, Kamimashiki District?
Costco Kumamoto Mifune Warehouse is welcoming for families and a popular destination in Mifune Town. See this article for full details.
What are the hours and closing days for Costco Kumamoto Mifune Warehouse?
Hours and closing days are subject to change. Please check the official website or call ahead before visiting.
※Information is current as of the time of reporting. Prices and hours are subject to change. Please confirm before visiting.
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Article Writer
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Sarukuma Editorial
Sarukuma Editorial is a small team of locals based in Kumamoto, Japan, sharing the hidden gems, hometown flavors, and seasonal experiences that make our region special. We write the kind of guide we wish we had when showing friends around — honest, practical, and made by people who actually live here.
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