Conduct feasibility studies and scheme selection prior to entry into the market.
consulting
Services and Solutions for Large Corporations
From strategy to practice, we complete the process,
We are your one and only partner.
A group of experts that even the Big 4 can't cover, and that performs from practice and IT implementation.
OPTi is a Collaborating Firm of "Andersen Global", which covers 175 countries around the world.
We do not limit ourselves to advisory services, which is a specialty of large firms.
We complete everything from the definition of complex commercial requirements to system implementation of tax engines and day-to-day tax filing practices.
Tax Risk Analysis
Tax advisory (pre-entry surveys and requirements definition)
We will identify tax risks prior to entry into the market and develop countermeasures to address these risks.
Compliance
VAT/Sales Tax Registration Agency
Quickly handle complex VAT and sales tax registrations on your behalf. Eliminate tax risks associated with global expansion.
Compliance
agent for tax payment
We act reliably and promptly on behalf of our clients for tax payments in various countries. We optimize complex international remittance and tax payment management.
cost reduction
VAT refund (AP bill payment)
Ensure VAT refunds on overseas payments. Optimize invoice-based purchase tax credits.
cost reduction
VAT refund (T&E business travel expenses)
Omission-free VAT refunds for business travel expenses. Maximize tax deductions for complex overseas expenses.
Technology Introduction
税務エンジン導入支援
Automate complex global taxation. We provide companion support for the development and implementation of tax engines.
Corporate Database
企業情報データベース - D&B Hoovers
Company database provided by - D&B Hoovers
Indirect cost reduction
間接税コスト削減
Implement cost reductions in overhead costs such as rent, distribution costs, and property taxes.
environmental laws
EPR（拡大生産者責任）関連サービス
Green Label (CPF) Certification
Customs Administrator (ACP)
Tax Collector and Customs Administrative Control Point (ACP) Services
Customs Administrator Services
Scheme composition
Merchant of Record Composition
We perform MoR (Merchant of Record) structuring and risk analysis.
Merchant of Record
Merchant of Record Risk Analysis
Merchant of Record risk analysis.
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