Suspended until further notice
ITIN Application
ITIN application service with in-person document verification by our IRS-certified CAA.
Not accepting applications
Service Suspended Our Japan CAA service and all ITIN services are suspended until further notice
Our Japan Branch CAA service (in-person document verification) and all of our ITIN services, including new applications and renewals, are suspended until further notice. Other tax services for clients in Japan continue from our New Jersey head office with JPY pricing.
Questions? Message us on LINE or email [email protected].
Japan Branch — Service Suspended
ITIN Application Service
Our Japan CAA service and all of our ITIN services are suspended until further notice.
Understanding ITIN
What is an ITIN?
An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the IRS for individuals who need to file US tax returns but are not eligible for a Social Security Number. It's a 9-digit number beginning with 9.
Who Needs an ITIN?
- Foreign sellers of US real estate (FIRPTA withholding)
- Nonresident aliens with US-source income
- Spouses or dependents of US citizens/residents
- Foreign investors claiming tax treaty benefits
IRS Official Listing
Listed on the IRS Website
Copper River Tax was listed on the official IRS website as an Acceptance Agent in Japan. Our Japan CAA service and all of our ITIN services are currently suspended until further notice.
Source: IRS.gov — Acceptance Agents – Japan (accessed March 22, 2026)
IRS-Listed Acceptance Agent in Hokkaido
Our Japan CAA service, with in-person verification in Sapporo and Otaru, is suspended until further notice, along with all of our ITIN services.
Pricing
Service Pricing
Suspended until further notice
ITIN + FIRPTA Tax Return
Complete package for foreign sellers of US real estate. Includes ITIN application, Form 1040-NR filing for FIRPTA withholding, and state tax return.
Not accepting applications
Important: ITIN Expiration Rules
ITINs have specific expiration rules:
- ITINs not used on a tax return for 3 consecutive years expire
- ITINs issued before 2013 may have already expired
- Expired ITINs can be renewed with a new application
FAQ
Frequently Asked Questions
- How long does it take to get an ITIN?
- Processing typically takes 8-12 weeks after the IRS receives an application, and IRS processing time is outside anyone's control. Please note that all of our ITIN services are currently suspended until further notice.
- Do I need to send my passport to the IRS?
- The IRS generally requires original identity documents or copies certified by the issuing agency, unless a Certifying Acceptance Agent verifies them. Our Japan CAA service and all of our ITIN services are currently suspended until further notice.
- Can I apply for an ITIN online?
- The W-7 application must be submitted to the IRS by mail or through a CAA. All of our ITIN services, including our Japan CAA service, are currently suspended until further notice.
- What documents do I need for ITIN application?
- You'll need a valid passport and the tax return that requires the ITIN. Depending on your situation, additional documentation such as a marriage certificate may be required.
- My ITIN has expired. Can I renew it?
- Yes, ITINs that haven't been used on a federal tax return for three consecutive years expire, and renewals follow the same application process. Our ITIN services, including renewals, are currently suspended until further notice.
- Is Copper River Tax an officially recognized IRS acceptance agent?
- Copper River Tax was listed on the official IRS website as an Acceptance Agent in Japan (irs.gov/individuals/international-taxpayers/acceptance-agents-japan). Our Japan CAA service and all of our ITIN services are currently suspended until further notice.
- Can I get ITIN document verification in Hokkaido?
- In-person verification in Sapporo and Otaru is suspended until further notice, along with all of our ITIN services.
Contact Us
ITIN Service Inquiry
Our Japan CAA service and all ITIN services are suspended until further notice
Our Japan Branch CAA service (in-person document verification) and all of our ITIN services, including new applications and renewals, are suspended until further notice. Other tax services for clients in Japan continue from our New Jersey head office with JPY pricing.
Questions? Message us on LINE or email [email protected].