How to Apply for an ITIN: Complete Step-by-Step Guide (2025)

Section 1: Reason for Applying

Select only ONE reason that applies to you:

• Box a: Nonresident alien filing a U.S. tax return
• Box b: U.S. resident alien filing a U.S. tax return
• Box c: Dependent of U.S. citizen/resident
• Box d: Spouse of U.S. citizen/resident
• Box e: Nonresident alien student, professor, or researcher
• Box f: Dependent/spouse of nonresident visa holder
• Box g: Other (must specify and attach documentation)

Section 2: Name

• • Enter name exactly as shown on identity document
• • First name, middle name (if any), last name
• • Include name at birth if different

Section 3: Mailing Address

• • Must be complete and accurate
• • Include apartment/suite number if applicable
• • Foreign addresses: Include postal code and country

Section 4: Birth Information

• • Date of birth (MM/DD/YYYY format)
• • Country of birth
• • Gender (Male/Female)

Section 5: Other Information

• • Country of citizenship
• • Foreign tax identification number (if any)
• • Type of U.S. visa (if applicable)
• • Passport information