If you’re a non-U.S. resident who needs to file a U.S. tax return or fulfill other IRS requirements, you’ll need an Individual Taxpayer Identification Number (ITIN). The good news? You can apply for an ITIN even if you live outside the United States. Here’s a complete guide on how to do it.
What Is an ITIN?
An ITIN (Individual Taxpayer Identification Number) is a tax processing number issued by the Internal Revenue Service (IRS) for individuals who are not eligible for a Social Security Number (SSN). It helps non-U.S. residents and foreign nationals comply with U.S. tax laws.
Who Needs an ITIN?
You may need an ITIN if you:
Are not eligible for a Social Security Number (SSN)
Need to file a U.S. tax return (Form 1040)
Are a dependent or spouse of a U.S. citizen or resident alien
Are a nonresident alien claiming tax treaty benefits
Own or invest in U.S. property or business
Steps to Apply for an ITIN from Outside the U.S.
- Complete Form W-7
Download and fill out Form W-7 (Application for IRS Individual Taxpayer Identification Number) from the IRS website.
Make sure all information matches your passport and tax documents exactly.
- Prepare Supporting Documents
You’ll need to submit proof of identity and foreign status, such as:
Passport (most preferred document)
or
Two documents, such as a national ID and birth certificate
All documents must be valid and unexpired.
- Attach a Federal Tax Return (if required)
Most applicants must attach their U.S. federal tax return with the ITIN application.
Exceptions apply in certain cases—such as when applying for treaty benefits or certain exemptions.
- Submit Through One of the Following Methods:
Option 1: Apply Through a Certifying Acceptance Agent (CAA)
This is the easiest and safest way. A CAA is authorized by the IRS to verify your documents and submit your application directly.
You don’t need to send your original passport to the U.S.—the CAA certifies your identity for you.
Option 2: Mail Directly to the IRS
You can mail your Form W-7, tax return, and original or certified documents to:
Internal Revenue Service
ITIN Operation
P.O. Box 149342
Austin, TX 78714-9342
USA
Option 3: Apply In Person in the U.S.
If you are visiting the U.S., you can apply through an IRS Taxpayer Assistance Center (TAC) with an appointment.
How Long Does It Take?
Processing typically takes 8–10 weeks, but it may take longer if you’re applying from outside the U.S. or during busy tax seasons.
Tips for a Smooth Application
Double-check all spellings and dates on your form and documents.
Make sure your passport is valid and clear if scanned.
If mailing, use tracked international courier for security.
Use a CAA service to avoid mailing your original passport.
Need Help Applying for an ITIN?
We can help!
Our IRS Certifying Acceptance Agent (CAA) service allows you to apply for an ITIN without sending your passport to the IRS.
We handle the process securely and guide you every step of the way.
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