What Is an ITIN?
An ITIN is a tax processing number issued by the Internal Revenue Service (IRS) to individuals who are not eligible for an SSN but still need to file a U.S. tax return.
It’s used solely for tax reporting purposes — not for work or immigration eligibility.
Who Needs an ITIN?
You may need an ITIN if you are:
- A non-resident alien required to file a tax return
- A dependent or spouse of a U.S. citizen or resident alien
- A foreign investor with U.S.-based income
- An international student or researcher
How Do I Get an ITIN?
Step 1: Fill Out IRS Form W-7
Complete Form W-7, Application for IRS Individual Taxpayer Identification Number. Choose the reason for applying (such as “Nonresident alien filing a U.S. tax return”).
Step 2: Gather Supporting Documents
You’ll need original or certified copies of documents proving your identity and foreign status. Common documents include:
- Passport (standalone)
- Foreign birth certificate
- National ID
- U.S. Visa (if applicable)
Step 3: Submit Your Application
You can submit Form W-7 and supporting documents in one of three ways:
- Mail to:
IRS ITIN Operation,
P.O. Box 149342,
Austin, TX 78714-9342 - In-person at IRS-authorized Acceptance Agent or Taxpayer Assistance Center (TAC)
- Through a tax professional authorized by the IRS
Step 4: Wait for Processing
The IRS typically processes ITIN applications in 7–11 weeks, depending on the season.
Does ITIN Expire?
Yes. ITINs not used on a tax return for three consecutive years will expire. Also, some older ITINs with specific middle digits (like 88, 90–92) are subject to renewal.
Tips for Faster Approval
- Ensure documents are certified copies or originals — not plain photocopies
- Double-check that Form W-7 is signed
- Include a completed federal tax return unless you qualify for an exception
Conclusion
So, how do I get an ITIN? Just complete Form W-7, gather valid identity documents, and submit them through the proper IRS channels. Getting your ITIN is essential for meeting tax obligations and unlocking access to financial services in the U.S.How Do I Get an ITIN? Step-by-Step Guide for U.S. Taxpayers