Shopping Guide
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By onemall TL;DR
A Japan proxy service (also called a Japan proxy shopping service, Japanese proxy, buying service or daikou) purchases items from Japan-only stores and auctions on your behalf, holds them at a warehouse in Japan, and forwards them to you. To choose one, compare five things: service fee per order, free storage window, consolidation cost, store coverage, and which carriers reach your country.
- What it is: a local buyer plus a forwarder, so you can shop Mercari, Yahoo Auctions, Amazon Japan and any Japanese web store without a Japanese address or card.
- What you pay: two payments — item price + service fee first, international shipping second.
- Verified fees (checked 2026-09-18): ¥300 per order on the integrated marketplaces, 3% (¥200–¥300) on Yahoo Auctions, 5% (¥200–¥1,000) for any other store by URL.
- Where the savings are: 90 days of free storage and free consolidation of your first 6 orders, so you ship one box instead of six.
- US buyers: DHL (3–7 days) or ECMS (10–20 days) only, and duties apply at any parcel value since the de minimis exemption ended.
As of September 2026, more Japanese sellers than ever list “domestic shipping only” — and more overseas buyers than ever are using a Japan proxy service to get around it. This page is the single guide for that question: what a Japanese proxy service actually does, how japan proxy shopping works step by step, what it costs with sourced numbers, and how to judge any provider on the same checklist.
What Is a Japan Proxy Service?
A Japan proxy service is a company inside Japan that shops for you. You send it a product link (or a photo), it buys the item with a Japanese address and a Japanese payment method, receives the parcel at its warehouse, and ships it to your country. In Japanese the role is called daikou (代行, “acting on behalf of”), which is why you also see the terms proxy buyer, buying service, forwarding service, or simply Japanese proxies.
Three walls stop overseas shoppers at once:
- Domestic-only shipping. Marketplaces such as Mercari[1] and Yahoo Auctions Japan[2] are built for residents and almost never ship abroad.
- Payment barriers. Many Japanese shops reject foreign credit cards or require a Japanese phone number at checkout.
- Language. Listings, seller messages and return policies are written for locals only.
A good proxy removes all three. The country is one of the largest e-commerce markets in the world[3], and most of its secondhand, hobby and limited-edition inventory is reachable only this way. That is the honest answer to “what is a Japanese proxy shopping service”: a local address, a local wallet and a bilingual support desk, rented per order.
Proxy service vs. forwarding service
A pure forwarder (a Japan proxy forwarding service) only gives you a Japanese address; you still need a Japanese-friendly card and a shop that accepts it. A Japan proxy buying service places the order itself, so it works on Mercari, Yahoo Auctions and shops that block foreign cards. Most services today, including OneMall, do both jobs under one account.
How Does Japan Proxy Shopping Work?
The workflow is nearly identical across providers. Here is the end-to-end flow:
- Create a free account and enter your overseas shipping address.
- Find the item. Search the marketplaces inside the platform, paste a product URL from any Japanese store, or upload a photo and let AI Image Search find matching listings.
- Submit the order and make the first payment: item price + service fee (+ the seller’s domestic shipping, if the seller charges one). For auctions you set a maximum bid; the proxy bidding system places it for you and refunds the difference if you win lower.
- The proxy buys the item in yen and the seller ships it to the warehouse — typically 3–5 business days for in-stock items.
- Warehouse receipt. The parcel is logged to your account. Optional checks (unboxing photos, wrong-or-missing-item inspection) happen here.
- Keep shopping and consolidate. Items wait in free storage; when you are ready, combine several orders into one box.
- Second payment: international shipping. Pick a carrier, pay the quote, and track the parcel to your door. Import duties, if any, are collected by your own customs authority on arrival.
The two-stage payment is the part newcomers most often miss, so here is what each stage covers:
| Stage | What you pay | When |
|---|---|---|
| 1st payment | Item price + proxy service fee + domestic shipping inside Japan (if the seller charges it) + any optional inspection service | At checkout, before the proxy buys |
| 2nd payment | International shipping for the consolidated box, priced on the greater of actual and volumetric weight (L × W × H ÷ 5,000) | After the items are in the warehouse and you request shipping |
| On arrival | Import duty / VAT set by your country — not charged by the proxy | Collected by the carrier or customs |
How Much Does a Japan Proxy Service Cost?
Every number below was read on 2026-09-18 from OneMall’s official help pages or from live listing pages, and the source is named in the last column. If a number here ever disagrees with the source page, the source page wins.
| Item | Rate | Source |
|---|---|---|
| Service fee — Amazon Japan, Mercari, Rakuten and the other integrated marketplaces | ¥300 per order (flat; the same ¥300 appeared on 11 live listings priced ¥1,280–¥83,480) | Live service_fee_jp value on 11 item pages, 2026-09-18 |
| Service fee — Yahoo Auctions (bid or Buy It Now) | 3% of the final price, minimum ¥200, maximum ¥300 | Yahoo Auction guide |
| Service fee — LinkBuy (any other Japanese store, by URL) | 5% of the item price, minimum ¥200, maximum ¥1,000 | LinkBuy guide |
| Free storage | 90 days from warehouse receipt | Our Advantages |
| Consolidation | First 6 orders free; from the 7th order a small per-order fee (¥100 per order) applies | Consolidation guide |
| Optional checks | Empty-package check ¥20 · wrong/missing-item check ¥200 · unboxing photos ¥500 or ¥700 · box reinforcement ¥200 | Value-added services |
| Payment methods | Visa, Mastercard, American Express, JCB, Diners Club, Discover, PayPal (card payments convert at Stripe’s rate, PayPal at PayPal’s) | Payments and Fees |
| Carriers offered | Japan Post EMS[7], DHL, ECMS, Japan Post Seamail — availability depends on destination (see the US table below) | International shipping methods |
Two things the table implies. First, on a ¥1,380 Amazon Japan keychain and an ¥83,480 Rakuten console (both read on 2026-09-18) the marketplace fee was the same ¥300, so per-order pricing favours buyers who bundle several items into one order. Second, the consolidation guide’s own shipping data says combining 3 orders saves about 50% on freight and 6 orders about 66% — which is why the free-storage window matters more than most headline fees.
What international shipping to the US actually costs
These are live quotes pulled from the platform’s shipping calculator on 2026-09-18 for a United States address, using boxes small enough that volumetric weight stays below actual weight. Your quote will differ with box size, so treat these as the shape of the curve, not a price list.
| Parcel (weight, box) | ECMS (10–20 days) | DHL (3–7 days) |
|---|---|---|
| 500 g, 15 × 10 × 10 cm | US$17.44 | US$31.59 |
| 1 kg, 20 × 15 × 15 cm | US$20.99 | US$33.12 |
| 2 kg, 25 × 20 × 18 cm | US$28.10 | US$39.90 |
| 3 kg, 30 × 22 × 20 cm | US$33.28 | US$48.61 |
| 5 kg, 35 × 28 × 25 cm | US$45.88 | US$69.81 |
Going from 500 g to 5 kg multiplies the weight by ten but the ECMS price by less than three — the first kilo is expensive, every kilo after it is cheap. That is the whole case for consolidation.
How Do I Choose the Best Japan Proxy Service?
The best Japanese proxy service is not a brand name; it is a score on a checklist, and a Japan proxy service comparison is only fair when every provider is scored on the same list. Run any provider — including the one you are reading about — through these seven criteria, and check each figure on the provider’s own site because fees change without notice.
- Transparent service fee. Is it per order or per item, flat or a percentage, and is it shown before you pay? Add a sample item to the cart: if the fee at checkout differs from the published rate, walk away.
- Free storage length. 30 days forces you to ship half-empty boxes; 60–90 days lets you wait for a sale or a pre-order release and ship once.
- Consolidation cost. Free for the first several orders is the benchmark. A per-parcel repack fee can wipe out the freight you save.
- Store coverage. Marketplaces are table stakes. The real test is whether the service will buy from an arbitrary Japanese web store by URL, and what it charges to do so.
- Inspection options. Secondhand buys on Mercari and Yahoo Auctions need an unboxing photo or a wrong/missing-item check before the parcel leaves Japan. Know the price of that check up front.
- Carriers to your country. Ask which carriers serve your address today, before you buy a 20 kg lot.
- Support in your language. Read a recent review or two, then test it: when a seller cancels or customs holds a box, you want a human reply in English within a stated window.
Do not let a “nothing to pay at purchase” headline shortcut this list. A service that charges nothing at purchase often recovers the money through the exchange rate, a packing fee, or a shipping-stage handling charge. Compare the total for a realistic haul — say, five items over two months — not the single most visible number. If you want that math done for the major providers, read the sibling piece on the cheapest Japan proxy services and their fees.
Which Japanese Sites Can a Proxy Buy From?
Coverage varies, so check the platform list before you sign up. The integrated marketplaces on OneMall are Yahoo Auctions, Mercari, Yahoo Flea Market, Amazon Japan, Rakuten, Rakuma, Suruga-ya, Animate, ZOZOTOWN and 2nd STREET; anything else — a brand’s own web shop, a doujin store, a regional retailer — goes through LinkBuy at the 5% rate above. Typical categories buyers route through a proxy:
- Anime and collectibles: scale figures, Nendoroids, Pokémon and other trading cards, doujinshi, blind-box and lottery (kuji) prizes.
- Secondhand treasures: vintage cameras, retro games, mechanical watches from Mercari and Yahoo Auctions, where listings are one-of-a-kind and a fast domestic buyer wins.
- Fashion and streetwear: domestic-only labels and ZOZOTOWN exclusives.
- Everyday goods: stationery, cosmetics, kitchen tools from Amazon[4] and Rakuten.
One limit applies to every service: customs restricts what can leave the country (aerosols, CITES-listed materials, batteries with some carriers)[5], and frozen or fresh food cannot survive ambient warehouse storage.
Shipping to the US: Carriers, Duties and the 2026 Rules
For a United States address the live calculator returns two options: DHL and ECMS. Japan Post EMS and Seamail show as “not available in this region” on the US lane, so plan around a courier. ECMS is the budget pick and DHL the fast one; on the quotes above DHL costs roughly 40–80% more for the same parcel.
On duties, the rule changed in 2025. The United States suspended the duty-free de minimis treatment for low-value imports with effect from 29 August 2025[6], so a parcel from Japan can be assessed duty regardless of its declared value. Budget for it on every shipment and keep the proxy’s itemised invoice for the customs form. Buyers elsewhere should check their own authority; thresholds and rates differ by country and change often.
Conclusion
A Japanese proxy service is not magic; it is a Japanese address, a Japanese payment method and a warehouse, priced per order. Judge any provider on the seven-point checklist, add up the true total for a realistic haul, and use the 90-day storage window to ship one consolidated box instead of many. If you want ¥300 flat marketplace fees, free consolidation of your first 6 orders, LinkBuy for any Japanese store and English support, start with OneMall — and hold it to the same numbers you just read.
Frequently Asked Questions
What is a Japan proxy service?
A Japan proxy service is a company in Japan that buys items from Japanese stores and auctions on your behalf, receives them at its warehouse, and ships them to your country. It solves domestic-only shipping, foreign-card rejection and the language barrier in one account.
How do Japanese proxy services work?
You submit a link or photo, pay the item price plus a service fee, and the proxy buys the item and stores it in Japan. When you are ready, you consolidate your orders into one box and make a second payment for international shipping; duties, if any, are paid on arrival.
How much does a Japan proxy service cost?
With OneMall the service fee is ¥300 per order on the integrated marketplaces, 3% (¥200–¥300) on Yahoo Auctions and 5% (¥200–¥1,000) for any other store by URL, all verified on 2026-09-18. International shipping is the second, larger cost: a 1 kg box to the US quoted US$20.99 by ECMS or US$33.12 by DHL on the same date.
Can a proxy buy from Mercari and Yahoo Auctions Japan?
Yes. Both platforms are integrated, so one account doubles as a Mercari and Yahoo Japan proxy service and you search them directly, and for auctions you set a maximum bid that the service places for you. Because these are secondhand listings from private sellers, order an unboxing photo or a wrong/missing-item check if condition matters.
Which proxy service ships from Japan to the US, and how long does it take?
On the US lane the available carriers are DHL (quoted 3–7 days) and ECMS (10–20 days); Japan Post EMS is not offered to US addresses. Add 3–5 business days for the seller to deliver to the Japan warehouse, plus up to 5–6 working days for the warehouse to dispatch after you pay shipping.
Is it safe to use a proxy service to buy from Japan?
With an established provider, yes. Look for a published fee page, two-stage payment, tracked shipping with insurance, optional inspection before dispatch, and a support desk that answers in English. Authenticity of secondhand goods is never guaranteed by any proxy, so check seller ratings and use the inspection options.
Last updated: 2026-09-18.
References
- Mercari Japan — official marketplace. jp.mercari.com
- Yahoo! Auctions Japan — official auction marketplace. auctions.yahoo.co.jp
- JETRO, Japan External Trade Organization — Japanese market and e-commerce information. jetro.go.jp
- Amazon Japan — official marketplace. amazon.co.jp
- Japan Customs — Customs and Tariff Bureau, export and import guidance. customs.go.jp
- Federal Register — Notice of Implementation of Executive Order 14324, Suspending Duty-Free De Minimis Treatment (2 September 2025). federalregister.gov
- Japan Post — EMS international mail service. post.japanpost.jp