How to Obtain an ITIN for Free: A Comprehensive Guide

August 31, 2023
2 min read
How to Get an ITIN for Free: A Complete Guide | ITIN Support

If you're a foreign national required to file a U.S. tax return, securing an Individual Taxpayer Identification Number (ITIN) is essential. The ITIN, a nine-digit number issued by the IRS, enables individuals without a Social Security Number (SSN) to report income and access tax benefits, including the Child Tax Credit and the Foreign Tax Credit. However, navigating the ITIN application process can be both complex and costly. This guide simplifies how to obtain an ITIN at no charge, ensuring you meet your tax obligations efficiently.

Step 1: Do You Need an ITIN?

The initial step is to ascertain your need for an ITIN. Not every foreign national requires one. The IRS mandates an ITIN under the following conditions:

  • Lack of SSN eligibility, coupled with a requirement to file a U.S. federal tax return.
  • A need to file a U.S. federal tax return to claim a refund or report withholding/estimated tax payments.
  • Filing a tax return due to dependency on or marriage to a U.S. citizen/resident alien, or as a nonresident alien visa holder.
  • Claiming tax exemptions for a dependent/spouse on a nonresident alien visa through Form 8233.
  • Receipt of income subject to withholding requirements, necessitating an ITIN for tax purposes.

Should these conditions not apply, you might not require an ITIN. For more details on eligibility, visit our ITIN eligibility guide.

Step 2: Qualifying for a Tax Return Exception

Next, determine if you're eligible for a tax return exception. Normally, attaching a U.S. federal tax return to your Form W-7 is mandatory, unless you qualify for an exception. These exceptions range from nonresident alien students to individuals claiming tax treaty benefits. Review the detailed list of exceptions to see if you qualify, potentially saving time and money.

Step 3: Collecting Required Documents

Prepare your identity and foreign status verification documents. The IRS requires original or certified copies from the issuing agency. Preferred documentation includes a passport, which satisfies both identity and foreign status criteria. If unavailable, a combination of documents like national ID cards or birth certificates may suffice. Ensure these documents are current and match your Form W-7 information. For a comprehensive list of acceptable documents, check our documentation guide.

Step 4: Choosing Your Application Method

There are several methods to apply for an ITIN:

  • Mail: Send your Form W-7, tax return (if applicable), and documentation to the IRS. This method is free but can take up to seven weeks for processing.
  • In-person at a TAC: Visit an IRS Taxpayer Assistance Center with your documents for processing within 11 weeks.
  • Certifying Acceptance Agent (CAA): CAAs can expedite the process, verifying your documents without needing to mail originals to the IRS. However, fees may apply. Find a certified acceptance agent near you for personalized assistance.

For step-by-step instructions on each method, explore our application guide.

Step 5: Submit Your Application and Await Your ITIN

After selecting your application route, complete and submit Form W-7 with the necessary attachments. Processing times vary by method, so plan accordingly, especially if you have upcoming tax deadlines.

Keeping Your ITIN Active

Upon receiving your ITIN, safeguard it and remember that ITINs expire after three years of non-use on tax returns. Keep your ITIN active by filing U.S. federal tax returns as required.


Obtaining an ITIN is vital for foreign nationals with U.S. tax obligations. While the process may seem daunting, following these steps can help you secure an ITIN free or at a low cost. For personalized assistance, contact us at ITIN Support. We specialize in the ITIN application process, offering guidance to ensure a smooth and successful application.

For further information and resources, visit our homepage.