Now Open in Japan

Copper River Tax Japan

Professional US tax services for individuals in Japan. Our Japan branch provides localized support with services priced in Japanese Yen.

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Our Services

Comprehensive US Tax Services

Whether you're a Japanese resident needing an ITIN, a US citizen living abroad, or a service member stationed in Japan, we have you covered.

ITIN Application Services

As an IRS-authorized Certified Acceptance Agent (CAA), we can process your ITIN application without you having to mail original documents to the IRS, avoiding the risk of international mail loss. We offer in-person document verification in Sapporo and Otaru, so even domestic mailing can be avoided.

  • In-person verification in Sapporo & Otaru
  • W-7 form preparation and submission
  • Application tracking until issuance
US Nonresident Tax Filing

For Japanese residents with US-source income such as investments, rental properties, or business income. We ensure proper treaty benefits are applied.

  • Form 1040-NR preparation
  • US-Japan tax treaty optimization
  • Investment income reporting
US Expat Tax Services

Comprehensive tax services for US citizens and green card holders residing in Japan, including all available exclusions and credits.

  • Foreign Earned Income Exclusion (FEIE)
  • Foreign Tax Credit optimization
  • FBAR and FATCA compliance
US Military Personnel

To honor the service of US military members stationed in Japan, we offer 50% off all tax services.

  • 50% discount on all services
  • Understanding of military tax situations
  • Flexible scheduling for service members

Japan Branch Pricing

All services provided by our Japan branch are priced in Japanese Yen (JPY), making it easier for clients in Japan to budget and pay for services without currency conversion concerns.

Priced in JPY

Competitive local rates

Why Choose Us

Local Support, Global Expertise

Japanese Language Support
Japanese-speaking interpreter services are available by reservation. Schedule ahead to ensure seamless communication during your consultation.
Bank-Grade Security
All communications through our proprietary chat system are protected with AES-256 bit encryption, ensuring your sensitive tax information remains confidential.
Local Japan Branch
Our dedicated Japan branch team understands both US tax law and the local context, providing personalized service tailored to your situation.
Secure Communication
Use our encrypted messaging platform for all document submissions and communications. No need for unsecured email or physical mail.

Ready to Get Started?

Schedule a consultation with our Japan branch team. Japanese interpreter services available upon request.

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