Services and Solutions for Small and Medium Enterprises

The growth of cross-border EC is not stopped by taxation.

The most powerful black team that can handle all cross-border EC taxation and practical affairs.

We provide low-cost and speedy solutions to complex international indirect taxes (VAT, sales tax, GST).
Under the slogan of "saving valuable time of busy CEOs and staff," we provide an environment in which you can concentrate on your core business with our network of experts and IT.

Problem to be solved

Immediately eliminates bottlenecks in overseas sales.

VAT registration and tax return package

We package cumbersome tax registration and tax declaration procedures with our system and experience to complete them in the shortest possible time. We propose packages optimized for Japanese corporations and cross-border EC sellers.

Compliance with GPSR and EPR (environmental regulations)

We act as a GPSR certified agent, complying with packaging and recycling laws (EPR) in Germany, France, and other countries on your behalf to prevent sales stoppages.

Addressing past non-payment risks

We identify unknowingly incurred tax risks and minimize additional taxes and penalties.

Immediate recovery of frozen Amazon accounts

We handle everything from investigating the cause of the problem to restoring the account, enabling sales to resume as soon as possible. We also handle communication with tax authorities as the situation requires.

Opti's value proposition

We provide a reliable, low-cost, and hassle-free practical representation.

Reasonable flat-rate packages

We offer tax registration and tax filing packages for cross-border e-commerce in over 100 countries at a fraction of the cost of the Big 4.

Support in Japanese

All communication with complex overseas taxation systems and local authorities is completed in Japanese. We reduce your stress in English to zero.

Automation through in-house system "MyOPTI

Visualization of the status of tax returns for all locations. Provides a system that does not stop the progress of overseas taxation even when the person in charge is not available.

Online completion flow with no meetings required

Completion from application to settlement on the Web. By cutting down on sales man-hours, we realize an immediate start of business operations.

Compliance

VAT Registration

We will assist you in submitting the necessary documents on your behalf, starting with the presentation of the required documents to obtain a VAT number on your behalf.

詳細はこちら

Compliance

VAT Declaration

Assist with monthly and quarterly tax filings.

詳細はこちら

Compliance

agent for tax payment

We provide tax assistance on behalf of our clients. (This will be a case handled by our partner companies).

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environmental laws

EPR（拡大生産者責任）関連サービス

Registration and declaration of disposal of packaging materials, etc. will be carried out.

詳細はこちら

GPSR

一般製品安全規則（GPSR）認定代理人サービス

We can handle GPSR certified representatives, a consumer protection that is also required by Amazon, eBay, etc.

詳細はこちら

environmental laws

Amazon CPF申請サービス

Products with low environmental impact can obtain Amazon CPF certification and increase SEO effectiveness within Amazon. We can assist you with these measures.

詳細はこちら

Compliance

EPR（拡大生産者責任）関連サービス

EPR Registration and Declaration (Extended Producer Responsibility) (Packaging/WEEE/Battery)

詳細はこちら

EC Being x OPTI Seminar (April 24, 2026: Shibuya & Webinar)

CEO Fuchigami will be speaking at SusHi Tech Tokyo 2026 (April 27 and 28, 2026)

Use of TAX technology in cross-border EC