Gokce Tandogdu
ITIN Specialist, itin.net
An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the U.S. Internal Revenue Service (IRS). It is issued to individuals who need a U.S. taxpayer identification number for federal tax purposes but do not have and are not eligible for a Social Security number (SSN). The ITIN is a nine-digit number, beginning with the number 9, and has a range of 70–88 as the fourth and fifth digits. For example, a typical ITIN might look like 9XX-75-XXXX. The IRS issues ITINs regardless of immigration status, as all U.S. residents and non-residents who meet the criteria for filing U.S. taxes must have a valid U.S. taxpayer identification number. Understanding what is an ITIN number is the first step for many foreign nationals and non-residents who have U.S. tax obligations.
Who Needs an ITIN?
An ITIN is required for individuals who must file a U.S. tax return or are claimed as a dependent on a U.S. tax return, but who do not have an SSN. Common situations requiring an ITIN include:
- Non-resident aliens filing a U.S. tax return: This applies if you have U.S. source income and are required to file Form 1040-NR (U.S. Nonresident Alien Income Tax Return) or Form 1040-NR-EZ. This is common for individuals working temporarily in the U.S. or earning income from U.S. investments.
- U.S. resident aliens (based on days present in the U.S.) filing a U.S. tax return: If you meet the substantial presence test or the green card test, you are considered a U.S. resident alien for tax purposes. If you are not eligible for an SSN, you will need an ITIN to file your tax return (e.g., Form 1040).
- Dependents or claiming dependents: If you are a dependent on someone else’s tax return, or if you are claiming a dependent who needs a U.S. taxpayer identification number, an ITIN may be necessary for that individual.
- Individuals filing a U.S. tax return to claim treaty benefits: Even if you don't have U.S. source income, you might need an ITIN to claim certain tax treaty benefits, such as reduced withholding on U.S. source income.
- Individuals filing U.S. tax returns to claim an exception from withholding: Certain individuals may be able to claim an exception from withholding requirements.
- Beneficiaries of U.S. estates or trusts: If you are a beneficiary of a U.S. estate or trust and receive distributions, you may need an ITIN.
It's important to note that an ITIN is solely for tax purposes. It does not authorize you to work in the U.S., provide eligibility for Social Security benefits, or serve as a general form of identification for purposes other than federal tax filing.
How to Apply for an ITIN
The application for an ITIN is made using IRS Form W-7, Application for IRS Individual Taxpayer Identification Number. You must submit this form along with original documentation or certified copies of your identification and foreign status. The IRS has specific requirements for the types of documents accepted. Generally, you will need:
- Proof of identity and foreign status: This typically includes your passport. If you don't have a passport, other documents like a national identity card, driver's license, or birth certificate may be accepted, but they must be accompanied by other supporting documents. The IRS provides a comprehensive list of acceptable documents on its website and in the instructions for Form W-7.
- Completed U.S. federal tax return: You generally must have a reason to file a U.S. tax return to receive an ITIN. This means you need to complete the appropriate tax form (e.g., Form 1040-NR for non-residents) and attach it to your W-7 application. There are exceptions, such as applying for an ITIN solely to claim treaty benefits, where a tax return may not be immediately required, but the specific rules must be followed.
There are three primary ways to submit your Form W-7 application:
- Mail your application to the IRS: You can mail your completed Form W-7, along with your original tax return and supporting identification documents, to the IRS address listed in the Form W-7 instructions. Be aware that sending original documents means they will be held by the IRS for processing, which can take several weeks. The IRS will return your original documents after they have reviewed your application.
- Apply through a Certified Acceptance Agent (CAA): CAAs are individuals or entities authorized by the IRS to help taxpayers apply for ITINs. They can review your original identification documents and forward your application to the IRS on your behalf. A significant advantage of using a CAA is that they can verify your original documents, meaning you don't have to mail them to the IRS. This can significantly speed up the process and reduce the risk of losing your important documents. itin.net works with CAAs to streamline this process.
- Apply at an IRS Taxpayer Assistance Center (TAC): Some IRS TACs offer ITIN application services by appointment. You will need to bring your original documentation and completed Form W-7. However, not all TACs provide this service, and availability can be limited, so it's advisable to check with your local TAC or the IRS website for details and to schedule an appointment.
Required Documentation for ITIN Application
To successfully apply for an ITIN, precise documentation is crucial. The IRS requires proof of identity and foreign status. The most commonly accepted document is a valid passport. If a passport is not available, a combination of other documents may be used, but the IRS specifies which documents are acceptable and how they must be presented. These documents must be originals or certified copies from the issuing agency.
Acceptable documents include, but are not limited to:
- Passport
- National Identity Card
- U.S. Driver's License
- Foreign Driver's License
- Birth Certificate (for dependents under 18)
- Foreign Voter's Registration Card
- Civilan I.D. Card (for military)
- Visa
- U.S. State Identification Card
- Health/Medical Records (dependents only)
- School Records (dependents only)
- Tribal I.D. Card (U.S.)
Each document submitted must contain your name, photograph (if applicable), address, date of birth, and a valid expiration date. If you submit documents other than a passport, you may need to provide multiple documents to satisfy the identity and foreign status requirements. For example, a birth certificate and a driver's license might be used together. The IRS provides a detailed list of acceptable documents and combinations in the instructions for Form W-7. Failing to provide the correct documentation is a common reason for ITIN application delays or rejections.
Processing Times and Costs
There is no fee to apply for an ITIN directly from the IRS. The IRS processes ITIN applications free of charge. However, if you use the services of a Certified Acceptance Agent (CAA), the CAA may charge a fee for their assistance in preparing and submitting your application. The cost for CAA services can vary.
Processing times can fluctuate significantly depending on the volume of applications the IRS is receiving. Historically:
- Mail applications: Processing can take anywhere from 7 to 14 weeks from the date the IRS receives your complete application. This timeframe can be longer during peak tax seasons (e.g., January to April).
- CAA applications: While the IRS processing time once they receive the application is similar, CAAs can often submit applications more efficiently, potentially leading to a slightly faster overall turnaround from when you first engage with the CAA.
- TAC appointments: If you can secure an appointment, the processing at the TAC can be relatively quick, often completed the same day, provided your application is complete and documentation is in order. However, getting an appointment can be challenging.
It's crucial to apply well in advance of any tax deadlines to allow ample time for processing. The IRS issues ITINs in the order they are received.
What Happens After You Receive Your ITIN?
Once your ITIN application is approved, the IRS will mail you an official notice, IRS Letter CP-565, which contains your unique ITIN. Keep this letter and your ITIN in a safe place, as you will need it for all future U.S. tax filings. You will also need it if you plan to open a U.S. bank account or form a U.S. LLC, as financial institutions and government agencies often require a U.S. taxpayer identification number.
Your ITIN is valid for life unless it expires or is revoked by the IRS. However, the IRS requires individuals with certain ITINs to renew them. If your ITIN has not been used on a federal tax return for three consecutive tax years, it will be deactivated. Additionally, the IRS has a policy to retire and require renewal of ITINs that begin with the numbers 70, 71, 72, and 73. If your ITIN falls into these categories, you will need to renew it by submitting a Form W-7 along with your tax return and updated identification documents. The IRS typically announces renewal periods and specific instructions on its website.
Failure to renew an expired ITIN can lead to issues with tax filings and penalties. If your ITIN has expired and you need to file a U.S. tax return, you must apply for a new ITIN or renew your existing one before filing.
Common Mistakes and How to Avoid Them
Applying for an ITIN can seem straightforward, but several common mistakes can cause delays or rejections. Being aware of these pitfalls can help ensure a smoother application process:
- Incomplete or inaccurate Form W-7: Ensure all fields are filled out correctly and completely. Double-check names, addresses, and identification numbers. Missing information is a primary cause of application delays.
- Incorrect or missing documentation: Submitting the wrong type of identification documents, expired documents, or failing to provide original or certified copies can lead to rejection. Always refer to the IRS Form W-7 instructions for the most current list of acceptable documents.
- Not attaching a tax return (when required): Most ITIN applications must be accompanied by a valid U.S. federal income tax return. If you are applying for an ITIN solely to claim treaty benefits or other specific exceptions, ensure you meet the exact IRS criteria for submitting the W-7 without a tax return.
- Mailing original documents without tracking: If you choose to mail your documents to the IRS, use a trackable shipping method. This provides proof of delivery and allows you to monitor the package's journey.
- Not renewing an expired ITIN: If your ITIN has expired, or if the IRS has announced a renewal period for certain ITIN ranges, you must renew it before filing your next tax return. Filing with an expired ITIN can result in processing delays for your tax return.
- Using the ITIN for employment: Remember, an ITIN is strictly for tax purposes. It does not grant work authorization. Attempting to use it for employment purposes can lead to serious complications.
Carefully reviewing all requirements and instructions provided by the IRS before submitting your application is the best way to avoid these common errors.
ITIN vs. SSN
It is essential to understand the distinction between an ITIN and a Social Security number (SSN). An SSN is a nine-digit number issued by the Social Security Administration (SSA) to U.S. citizens, permanent residents, and temporary (working) residents who are authorized to work in the U.S. SSNs are used for a wide range of purposes beyond just tax filing, including employment, obtaining credit, and accessing government benefits.
An ITIN, on the other hand, is issued by the IRS exclusively for tax processing. It does not grant any work authorization, eligibility for Social Security benefits, or other privileges associated with an SSN. While both are taxpayer identification numbers, their purpose and issuing authority are fundamentally different. You cannot use an ITIN to prove your eligibility to work in the United States. If you become eligible for an SSN, you must stop using your ITIN and use your SSN for all tax purposes. You will need to notify the IRS of this change.
How itin.net Can Help
Navigating the U.S. tax system as a foreign national or non-resident can be complex. Understanding requirements like obtaining an ITIN is a critical step for many individuals. At itin.net, we provide resources and services to assist you. We can help you understand the ITIN application process, gather the necessary documentation, and connect you with Certified Acceptance Agents who can verify your identity documents without you having to mail them to the IRS. This can significantly expedite the process and reduce the stress associated with applying for your ITIN. Whether you need an ITIN for tax filing, to open a U.S. bank account, or for other tax-related reasons, our goal is to make the process as clear and efficient as possible. For those needing a U.S. business presence, we also offer U.S. LLC formation services, which often require an ITIN or an EIN for tax identification.