IRS-Authorized CAA Services
Professional assistance with Form W-7 preparation, eligible identification document authentication, and required certification documentation.
ITIN Application Services
IRS-Authorized Certifying Acceptance Agent (CAA)
IRS-Authorized CAA Services
Tax Fitness Solutions is an IRS-authorized Certifying Acceptance Agent (CAA), providing professional Individual Taxpayer Identification Number (ITIN) application and renewal assistance for eligible individuals.
We help clients determine ITIN eligibility, prepare Form W-7, authenticate qualifying identification documents, and coordinate related U.S. federal tax filings when required.
Through the CAA process, eligible applicants can generally avoid mailing their original passports to the IRS, reducing the inconvenience and risks associated with sending important identification documents.
Who May Need an ITIN?
Foreign Investors & U.S. Property Owners
Individuals with U.S. rental properties, real estate sales, partnership K-1 income, or FIRPTA withholding and refund requirements.
International Students, Scholars & Researchers
Individuals requiring an ITIN for qualifying scholarships, fellowships, tax filings, or applicable tax treaty benefits.
Spouses & Dependents
Eligible family members requiring a taxpayer identification number for joint or individual tax filings or allowable tax benefits.
Cross-Border Investors & Income Recipients
Individuals requiring an ITIN for U.S.-source income, tax withholding, information reporting, or applicable tax treaty benefits.
Other U.S. Tax Filers
Resident and nonresident aliens with qualifying federal tax filing, refund, or other tax identification requirements.
ITIN eligibility depends on the applicant’s specific federal tax purpose and ineligibility for a Social Security number (SSN).
Why Choose Tax Fitness?
Reduced Need to Mail Original Passports
Qualifying identification documents can be authenticated and returned following the required review process, rather than being mailed to the IRS.
Integrated ITIN & Tax Filing Support
Coordinated assistance with ITIN applications, Forms 1040 and 1040-NR, foreign investment income, real estate transactions, and related U.S. tax compliance.
Bilingual English & Chinese Support
Clear, professional communication tailored to international investors, students, cross-border families, and business owners.