The #1 Mistake E-Commerce Sellers Make
⚠️ Amazon does not act as your Importer of Record (IOR) in Japan. Neither does Rakuten. Neither does your freight forwarder. If you ship inventory to an FBA warehouse without a valid IOR, your goods will be held at customs.
This is the single most common compliance failure among non-resident sellers entering the Japanese market. Amazon's own Seller Central guidance is explicit:
"Neither Amazon nor any of its entities in Japan
may act as the IOR/ACP on the customs declaration."
— Amazon Seller Central, Japan Tax and Regulatory Considerations
How Japan E-Commerce Imports Actually Work
The Supply Chain
Your Warehouse Japan Customs Amazon FBA / Rakuten
(Overseas) (税関) Warehouse
│ │ │
│ Ship goods │ Customs clearance │
│────────────────────→│───────────────────────→│
│ │ │
│ │ WHO IS THE IOR? │
│ │ ↓ │
│ │ YOU (the seller) │
│ │ via ACP appointment │
│ │ │
│ │ Duties + 10% JCT paid │
│ │ │
│ │ Goods released ───────→│ Stored in FBA/warehouse
│ │ │ Ready for customer orders
Who Does What?
| Party | Role | Is IOR? |
|---|---|---|
| You (seller) | Own the goods, set prices, receive revenue | ✅ YES |
| ACP provider | Handle customs procedures on your behalf | ❌ Agent only |
| Customs broker | File import declarations | ❌ Filing agent |
| Freight forwarder (DHL, FedEx, UPS) | Transport goods | ❌ Logistics only |
| Amazon / Rakuten | Warehouse, fulfill, collect payment | ❌ Platform only |
The ACP Setup for E-Commerce
Step-by-Step
| Step | Action | Timeline |
|---|---|---|
| 1️⃣ | Choose ACP provider (check Amazon SPN for certified providers) | 1 week |
| 2️⃣ | Sign service agreement; provide company docs | 3–5 days |
| 3️⃣ | ACP files notification with Japan Customs | ~2 weeks |
| 4️⃣ | Prepare shipping documents (invoice, packing list, B/L or AWB) | Concurrent |
| 5️⃣ | First shipment clears customs with you as IOR | Immediately after step 3 |
| Total | ~3–4 weeks |
Required Shipping Documents
| Document | Key Fields |
|---|---|
| Commercial Invoice | Seller (you) as shipper; IOR = you; consignee = FBA warehouse address |
| Packing List | Item descriptions, quantities, weights |
| B/L or AWB | Shipper = you; consignee = your ACP or FBA warehouse |
| HS Code classification | Determined with ACP support |
⚠️ Common Error: Writing "Amazon" or "Amazon Japan G.K." in the IOR or consignee field. This will cause customs to reject or hold the shipment.
Customs Valuation — The Amazon FBA Special Case
Why FBA Imports Are Different
Normal imports involve a sale between an overseas seller and a Japanese buyer. The customs value is based on the transaction price (CIF-adjusted sale price).
But with Amazon FBA, you (the seller) ship goods to yourself — there is no sale at the time of import. You retain ownership until a customer buys on Amazon.co.jp.
This means the standard "transaction value" method (Customs Tariff Law Art. 4§1) cannot be used. Instead, Japan Customs requires an alternative valuation method.
Deductive Value Method (控除方式)
| Step | Calculation |
|---|---|
| Start with | Amazon selling price (incl. JCT) |
| Minus | Amazon commission / fees |
| Minus | JCT amount |
| Minus | Domestic transport costs |
| Minus | Reasonable profit margin |
| = | Customs declaration value |
💡 Your ACP should prepare and maintain the valuation calculation methodology. Japan Customs may request it during post-clearance audits.
JCT for E-Commerce Sellers — The Numbers
When You Become JCT-Taxable
| Condition | Result |
|---|---|
| Taxable sales in base period > ¥10M | Mandatory taxable entity |
| Taxable sales ≤ ¥10M | Tax-exempt (can elect to become taxable) |
| Want to issue Qualified Invoices? | Must register → becomes taxable |
The JCT Flow for FBA Sellers
① IMPORT ② DOMESTIC SALE ③ JCT FILING
(via Amazon.co.jp)
Pay 10% JCT Collect 10% JCT Output − Input
to Customs from customer = Net payable
(import JCT) (sales JCT)
✅ If YOU are IOR: You collect ¥120 File: ¥120 − ¥100
Pay ¥100 on ¥1,200 sale = Pay ¥20
→ Deductible
❌ If third party is IOR: You collect ¥120 File: ¥120 − ¥0
They pay ¥100 on ¥1,200 sale = Pay ¥120 ❗
→ NOT deductible Lost ¥100!
FY2026 Tax Reform — New Platform Obligations
🔴 Breaking Change: The December 2025 FY2026 Tax Reform Outline introduces a new rule: e-commerce platform operators (with intermediary sales exceeding ¥5 billion) will become liable for filing and paying JCT on behalf of sellers. Additionally, goods priced at ¥10,000 or less (previously JCT-exempt for cross-border mail orders) will now be subject to JCT.
| Item | Old Rule | New Rule (FY2026+) |
|---|---|---|
| Platform JCT liability | Seller files | Platform files (if >¥5B intermediary sales) |
| Low-value exemption | ≤¥10,000 exempt | No exemption — all goods subject to JCT |
| Seller obligation | File JCT return | Still must maintain records; platform handles filing |
Amazon Japan vs. Rakuten — Platform Comparison for Non-Residents
| Factor | Amazon Japan | Rakuten |
|---|---|---|
| Marketplace share | ~25–30% of JP e-commerce | ~15–20% |
| FBA available | ✅ Yes | ❌ (Rakuten Super Logistics, limited) |
| Non-resident seller support | ✅ Global selling program | ⚠️ Requires JP entity or agent |
| ACP/IOR guidance | Published on Seller Central | Less documented |
| Language requirement | JP customer service required | All listings in Japanese |
| Payment | Direct to overseas bank | May require JP bank account |
| Commission | 8–15% (category-dependent) | Monthly fee + 2–7% commission |
Common Pitfalls & Solutions
| Pitfall | Consequence | Solution |
|---|---|---|
| Naming Amazon as IOR on shipping docs | Goods held at customs | Appoint ACP; name yourself as IOR |
| No ACP before first shipment | Goods stuck; storage charges mount | Register ACP 3–4 weeks before shipping |
| Wrong customs valuation method | Under/overpayment of duties + JCT | Use deductive method with ACP guidance |
| Not registering as QI Issuer | B2B customers can't claim JCT credit | Register with NTA via paper application |
| Ignoring the ¥10M threshold | JCT non-compliance penalties | Monitor sales; register when approaching ¥10M |
| No JCT Tax Representative | Cannot file JCT returns | Appoint before first filing deadline |
✅ Launch Checklist — E-Commerce Entry to Japan
- Appoint ACP provider (check Amazon SPN for certified options)
- Complete ACP registration with Japan Customs (~2 weeks)
- Set up customs valuation methodology (deductive method for FBA)
- Prepare compliant shipping documents (you as shipper + IOR)
- Register as Qualified Invoice Issuer with NTA (if B2B sales planned)
- Appoint JCT Tax Representative (if approaching ¥10M taxable sales)
- Ensure product compliance (PSE/PSC/Food Safety — see our compliance guide)
- Set up Japanese-language customer service
- Ship first inventory to FBA warehouse
Official References
| Source | Link |
|---|---|
| Amazon Seller Central — ACP/IOR Guidance | sellercentral.amazon.co.jp |
| Japan Customs — ACP Leaflet (EN) | customs.go.jp |
| Customs Tariff Law (EN) | japaneselawtranslation.go.jp |
| NTA — Consumption Tax | nta.go.jp |
| NTA — QIS Registration | nta.go.jp |
This article is for informational purposes only. Consult a certified customs specialist (通関士) and tax accountant (税理士) for your specific e-commerce import structure.