Market and import check
Product-by-product review of Amazon.co.jp demand, competition, pricing and fees, and the import route for FBA Japan through an importer of record.
Amazon · Japan · Amazon.co.jpAmazon Japan agency
Amazon Japan agency
for brands selling on Amazon.co.jp
CommerceKind is an Amazon agency that runs Amazon Japan (Amazon.co.jp) for brands: US, UK, European and other brands expanding into Japan, and brands already selling there that want more growth. Our in-house team checks the market and import route first, writes Japanese listings and A+ Content from Amazon.co.jp search data, runs Sponsored Products, Sponsored Brands and Sponsored Display in yen, sets up FBA Japan, coordinates the importer of record, consumption tax and product rules such as PSE for electrical goods with your partners and advisers, and handles customer service in Japanese. We manage Seller Central and Vendor Central across every Amazon marketplace, so Japan runs alongside your US, UK and European accounts.
Book a strategy call ★ Trustpilot 4.4/5 · $100M+ revenue for client brands · 60+ brands managedAt a glance
- Who it’s for
Brands selling on Amazon US, the UK or Europe that want to add Japan, and brands already on Amazon.co.jp that want a team to run it. - How we work
Market check, import route and product rules first, then Japanese listings, ads in JPY and season planning. - Proof
$100M+ client revenue · 60+ brands managed in-house · $3M+ monthly ad spend
What our Amazon Japan service covers
Native Japanese listings and A+ Content
Titles, bullets, images and A+ Content written in Japanese from Amazon.co.jp search data, not machine-translated, with sizes, units and specs checked.
Amazon Ads in JPY
Sponsored Products, Sponsored Brands and Sponsored Display with bids set from each product’s margin after duties, consumption tax, fees and shipping, from a team managing $3M+ in monthly ad spend.
Importer, tax and product rules coordinated
Importer of record, consumption tax and category rules such as PSE for electrical products, radio certification for wireless devices and labelling for cosmetics and food-contact items checked with your partners.
Prime Day, Black Friday and New Year
Stock and ads planned for Japan’s Amazon calendar: Prime Day, Prime Big Deal Days, Black Friday, the year-end and New Year sales and gift seasons.
Japanese customer service and reviews
Buyer messages, returns and reviews handled in Japanese to the standard Japanese shoppers expect, with weekly reports in English.
Ways to sell on Amazon Japan, and when each fits
| How it works | Best for | |
|---|---|---|
| FBA Japan through an importer of record | Stock is imported by a Japanese importer and stored in Amazon’s Japanese fulfilment centres | Most brands, where Prime and fast delivery matter |
| Merchant fulfilment from a Japanese 3PL | A local partner stores stock and ships orders | Bulky items or brands with an existing Japan warehouse |
| Cross-border merchant fulfilment | Orders ship from outside Japan | Testing a small range of light, low-risk products |
| Vendor Central Japan | Amazon buys stock from you as a supplier | Established brands invited by Amazon, often alongside 3P |
How an Amazon Japan launch works
01
Market check
We review your catalog against Amazon.co.jp demand, competition, pricing and fees, and recommend which products to launch first.
02
Import and requirements
Importer of record, consumption tax and product rules coordinated with your partners, and the fulfilment route chosen.
03
Listings and launch
Japanese listings, images and A+ Content published, ads launched in JPY and reviews and buyer questions managed from day one.
04
Scale
More products and variations, stock and deals planned for Prime Day, Black Friday and the year-end sales, with weekly reports.
$100M+
revenue generated for client brands
60+
brands managed in-house
$3M+
monthly ad spend managed
4.4/5
on Trustpilot (13 reviews)
Why brands add Amazon Japan
Japan is one of the largest ecommerce markets in the world, and Amazon.co.jp is one of its leading online stores. Japanese shoppers expect detailed, accurate product pages, careful packaging and fast, polite service, and they read reviews closely. Brands that grow there treat Japan as its own market, with listings written in natural Japanese, prices set in yen, an import partner in place and product rules checked before the first shipment.
Native Japanese listings, not translations
Machine-translated listings read poorly to Japanese buyers and miss the katakana, kanji and everyday terms they actually search with. We research keywords in Amazon.co.jp search data and write titles, bullets, images and A+ Content in Japanese, convert sizes and units, show what is in the box and how the product is used, and adapt claims for the market. See our Amazon listing optimization and A+ Content services.
Importer of record, tax and product rules
To send stock into FBA Japan, brands from outside Japan generally need a Japanese importer of record, because Amazon does not act as the importer. Sellers also have consumption tax considerations that depend on how they are set up, and some categories have their own Japanese rules: PSE marking for many electrical products, radio certification for wireless devices, and labelling rules for cosmetics, food-contact items and other regulated goods. We check what Amazon asks for, prepare the documents you already hold and work with your importer, tax adviser and compliance partners on everything else; we are not legal, tax or customs advisers.
Amazon Ads in yen, set from margin
We run Sponsored Products, Sponsored Brands and Sponsored Display on Amazon.co.jp with bids and budgets set from contribution margin after duties, tax, fees and shipping, not a blanket ACoS target. Japanese and English brand and product terms are both tested, brand terms are defended and budgets are paced for Prime Day, Prime Big Deal Days, Black Friday and the year-end and New Year sales. In one account, a rebuilt campaign structure turned 54% more ad spend into 117% more ad revenue at a lower ACoS: see the PPC scaling case study. Results depend on product, margin and category, and we share a plan after reviewing your account.
Service, reviews and packaging to Japanese standards
Japanese buyers notice damaged boxes, unclear instructions and slow replies. We answer buyer messages in Japanese, read return reasons and reviews for packaging, sizing and instruction problems, add Japanese inserts and setup guidance where they help, and keep account health monitored daily so small issues do not grow.
One team for Japan and every other marketplace
Japan runs best alongside your other marketplaces, with one team keeping catalog, pricing and stock consistent. We run Amazon in the US, Canada, Mexico, the UK, Germany and the rest of Europe, the UAE, Japan and Australia: see our Amazon international expansion agency and Amazon Germany agency pages. Agencies can offer Amazon Japan to their clients under their own brand through our white-label Amazon agency for Japan. As an Official TikTok Shop Partner with a 10K+ creator network we also run TikTok Shop in the US and UK.
Why brands choose CommerceKind for Amazon Japan
CommerceKind has helped generate $100M+ in revenue for client brands, manages 60+ brands in-house and $3M+ in monthly ad spend, is an Official TikTok Shop Partner with a 10K+ creator network, and is rated 4.4/5 on Trustpilot from 13 reviews.
Brands that work with us
A few of the 60+ brands CommerceKind works with.
Verified Client Case Studies · Real Dashboards
See the numbers behind our client turnarounds.
Every case study below comes directly from unedited Seller Central, Amazon Ads, Search Query Performance, Sellerboard, TikTok Shop, and Walmart Connect dashboards.
+102% Ad Sales · −53% ACOSPrivate Label · Full Account Turnaround
Listing-first PPC turnaround: sales doubled, ACOS cut in half
Redesigned the main image for click-through, rewrote listing copy and A+ Content to convert, then rebuilt Sponsored Products and daily bid management.
Ad Sales$14,304 → $28,911+102%
Orders798 → 1,646+106%
ROAS3.99 → 8.48+112%
ACOS25.08% → 11.79%−53%
+117% Ad Sales · −29% ACOSPrivate Label · PPC Scale & Efficiency
Scaling PPC without ACOS spikes: 117% more revenue at lower ACOS
Rebuilt campaign hierarchy and segmentation with disciplined bid rules and A+ Content so 54% more ad spend produced 117% more ad revenue.
Ad Sales$19,680 → $42,712+117%
ACOS34.03% → 24.10%−29%
ROAS2.94 → 4.15+41%
Ad Spend$6,697 → $10,294+54%
+126% Ad Sales · −40% ACOSPrivate Label · 30-Day Turnaround
One-month PPC turnaround: sales up 126%, ACOS nearly halved
Tightened listing copy and imagery in week one, cut wasted spend across unprofitable targets, and set SKU-level ACOS goals with daily bid adjustments.
Ad Sales$15,170 → $34,257+126%
Orders553 → 1,233+123%
ROAS3.62 → 6.01+66%
ACOS27.64% → 16.65%−40%
+144% Ad Sales · +141% OrdersHealth & Wellness · Rapid Volume Scale
Health & wellness brand: 2.4× sales volume while holding ROAS steady
Mapped untapped high-intent keyword pockets and expanded placement coverage while upgrading creative so sales jumped from $38K to $93K at stable ROAS.
Ad Sales$38,207 → $93,266+144%
Orders1,545 → 3,719+141%
ROAS2.55 → 2.60Held
ACOS39.19% → 38.48%Held
+118% Click Share · +106% ClicksHealth & Wellness · SQP & CTR Growth
Keyword click share more than doubled in a declining search market
Diagnosed Search Query Performance funnel drop-off and redesigned the main image around the core buyer need—doubling click share even as market volume dipped.
Keyword Clicks34 → 70+106%
Click Share0.85% → 1.85%+118%
Impressions4,353 → 6,635+52%
Imp. Share2.53% → 4.08%+61%
~$97K → ~$160K MonthlyMulti-Category · Full Account Management
Multi-product store: broke a multi-quarter plateau to hit a record month
Sequenced listing conversion upgrades, A+ Content across hero SKUs, and structured PPC review cycles—compounding from ~$97K to ~$160K in monthly revenue.
Monthly Rev.~$97K → ~$160K+65%
Perf. Index~$128K → ~$190K+49%
Timeline7 monthsJun → Jan
OutcomeAll-Time HighRecord
+906% Purchases · 9.62% ShareBaby Supplements · Keyword Dominance
Baby supplement brand: 10× keyword purchases on #1 category term
Combined SQP search-funnel analysis, buyer-language listing SEO, main image CTR work, and exact-match ranking campaigns to capture 9.62% purchase share.
Weekly Orders16 → 161+906%
Purchase Share1.17% → 9.62%+723%
Keyword Clicks95 → 516+443%
Click Share2.71% → 6.81%+151%
+$87K Net Profit · −30.6% Ad CostLarge Catalog · Profitability Turnaround
Large-scale catalog seller: +$87K net profit turnaround in one quarter
Audited SKU-level contribution margins in Sellerboard, eliminated $34K in low-margin ad waste, and reversed YoY profit trend from −31.4% to +12.5%.
Net Profit$698K → $785K+$87K
YoY Trend−31.4% → +12.5%+43.9pp
Ad Spend$111K → $77K−30.6%
Ad Savings$34,024 saved1 Qtr
£256 → £297,128 GMV · 11,827 OrdersTikTok Shop · Creator-Led Growth
TikTok Shop (GBP): from £256 to £297,128 GMV driven by affiliate creators
Built an affiliate recruitment, seeding, Discord community, and brief engine from scratch—generating £197,522 in creator-attributed GMV and 11,827 orders.
Shop GMV£256 → £297,128Window
Orders11,827In Window
Creator GMV£243 → £197,522Creators
Hero SKU£71 → £145,065Top Item
+51.9% Shop GMV · +67% OrdersTikTok Shop US · GMV & Creator Scale
TikTok Shop (US): +51.9% GMV growth in two months by widening creator base
Broke through creator concentration plateau by expanding publishing affiliates from 503 to 556 and scaling GMV Max ads behind top-converting videos.
Shop GMV$77.3K → $117.4K+51.9%
OrdersFeb → Apr+67.0%
Creator GMV$48.7K → $70.3K+44.3%
Active Sellers120 → 133+13
$1.27K → $21.6K Sales · 2.72 ROASWalmart Marketplace · Channel Expansion
Walmart Marketplace: from $1,271 to $21,646 in monthly sales & Pro Seller
Rebuilt Walmart listing quality scores from Poor to Good, cleaned up catalog structure, and scaled Walmart Connect Sponsored Search to 2.72× ROAS.
Monthly GMV$1.27K → $16,855Oct → Mar
Apr Sales$13.3K → $21,646870 Units
Ad ROAS$1.80 → $2.72+51%
Listing Score57% → 67%Pro Seller
Original Client Reviews · Unedited
Every written review from our Trustpilot page.
Read all 12 original written client reviews verbatim—linked directly to Trustpilot so you can verify every single one.
Frequently asked questions
Is there an agency that manages Amazon Japan for brands?
Yes. CommerceKind runs Amazon.co.jp for brands: market and import checks, native Japanese listings and A+ Content, Sponsored Products, Sponsored Brands and Sponsored Display in yen, FBA Japan through an importer of record, product rules such as PSE coordinated with your partners and customer service in Japanese.
Can a US brand sell on Amazon.co.jp?
Yes. US brands can register on Amazon Japan, but sending stock to FBA Japan generally needs a Japanese importer of record, and some products need Japanese certifications or labelling. We check your catalog and set up the route with your partners.
Do I need an importer of record for Amazon Japan?
For FBA Japan, generally yes, because Amazon does not act as the importer. We work with your importer or help you compare importer and 3PL options; we are not customs advisers.
Do electrical products need PSE marking in Japan?
Many electrical products sold in Japan fall under the Electrical Appliances and Materials Safety Act and need PSE marking, and wireless devices may need radio certification. We confirm what applies with your compliance partner before listing.
Do you write listings in Japanese?
Yes. Listings, images and A+ Content are written in Japanese from Amazon.co.jp search data rather than machine-translated, and buyer messages are answered in Japanese.
What are the biggest sales events on Amazon Japan?
Prime Day, Prime Big Deal Days, Black Friday and the year-end and New Year sales, plus gift seasons. We plan stock, deals and ads around each one.
Can my agency white-label Amazon Japan for its clients?
Yes. We run Amazon.co.jp under your agency’s brand, with an NDA and non-solicit first and reports carrying your logo: see our white-label Amazon agency for Japan page.
Which other marketplaces do you run?
Amazon US, Canada, Mexico, the UK, Germany, France, Italy, Spain and other European marketplaces, the UAE, Japan and Australia, plus TikTok Shop in the US and UK and Walmart.
Thinking about
Amazon Japan?
Book a free strategy call. We’ll review your products and the Amazon.co.jp opportunity with you and share a launch plan.
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