Apply for an ITIN: Step-by-Step Guide

Understanding how to apply for an ITIN is essential for individuals who are required to have a U.S. taxpayer identification number but do not have, and are not eligible to obtain, a Social Security Number (SSN). An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the U.S. Internal Revenue Service (IRS). It is crucial for tax purposes, enabling individuals to comply with U.S. tax laws and file tax returns.

Many people find the process of how to apply for an ITIN daunting, but with the right information and preparation, it can be a straightforward task. This guide will walk you through each step, ensuring you have all the necessary details to successfully obtain your ITIN.

What is an ITIN and Who Needs One?

An ITIN is a nine-digit number formatted like an SSN (XXX-XX-XXXX) but begins with the number 9. It is issued to individuals who are required to have a U.S. taxpayer identification number but do not have an SSN and are not eligible to obtain one. The IRS issues ITINs to both resident and non-resident aliens, as well as their spouses and dependents, who are required to file U.S. tax returns or are claimed on U.S. tax returns.

Common Scenarios Requiring an ITIN:

• A non-resident alien required to file a U.S. tax return.

• A U.S. resident alien (based on days present in the United States) filing a U.S. tax return.

• A dependent or spouse of a U.S. citizen/resident alien.

• A non-resident alien student, professor, or researcher filing a U.S. tax return or claiming a tax treaty benefit.

• An individual who needs an ITIN for information reporting purposes only.

Required Documents to Apply for an ITIN

When you apply for an ITIN, gathering the correct documentation is paramount. The IRS requires proof of foreign status and identity. The most common and preferred document is a valid passport, as it satisfies both requirements.

Primary Identification Documents:

• Passport: This is the only stand-alone document that proves both identity and foreign status.

Other Acceptable Documents (if no passport is available):

If you do not have a passport, you will need to submit a combination of two or more documents to prove both your identity and foreign status. These documents must be current and include your name, photograph, and foreign status. Examples include:

• National identification card (must show photo, name, current address, date of birth, and expiration date).

• Foreign military identification card.

• Visa issued by the U.S. Department of State.

• National civil birth certificate (for dependents).

• Medical records (for dependents under 6).

• School records (for dependents under 18).

It is critical to note that you generally need to submit original documents or certified copies from the issuing agency. Notarized copies are typically not accepted unless specifically allowed under an ITIN exception.

How To Apply For An ITIN: Step-by-Step Process

The process of how to apply for an ITIN involves completing Form W-7 and attaching supporting documentation. Follow these steps carefully to ensure a smooth application.

Step 1: Gather Your Documents

Before you begin filling out forms, ensure you have all required documents ready. This includes your original foreign status and identity documents, as well as any other supporting documents needed for your specific situation. Remember, you will send these with your application.

Step 2: Complete Form W-7, Application for IRS Individual Taxpayer Identification Number

Form W-7 is the official application for an ITIN. Fill out all sections accurately and completely. You will need to provide your personal information, foreign address, and select the reason you are applying for an ITIN. Ensure the reason chosen aligns with your situation, such as a non-resident alien filing a U.S. tax return.

Step 3: Attach Supporting Documentation

Along with your Form W-7, you must attach your original identification documents or certified copies from the issuing agency. If you are applying for an ITIN to file a U.S. tax return, you generally must also attach a valid U.S. federal income tax return (Form 1040, 1040-NR, etc.) for which the ITIN is needed. There are specific exceptions where a tax return is not required.

Step 4: Choose Your Submission Method

You have three main options for submitting your application:

• Mail: Send your completed Form W-7, original identification documents, and tax return (if applicable) to the IRS address listed in the Form W-7 instructions.

• IRS Taxpayer Assistance Centers (TACs): You can apply in person at certain IRS TACs. These centers can verify your original documents and return them to you immediately, eliminating the need to mail them. Appointments are usually required.

• IRS-authorized Acceptance Agents: These are individuals or entities authorized by the IRS to help applicants complete and submit Form W-7. They can also verify your original documents, so you don’t have to mail them to the IRS. This is often the preferred method for many applicants.

Understanding the W-7 Form