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 a nine-digit number formatted like a Social Security number (SSN) but always begins with the number 9 and has a '7' or '8' in the fourth digit (e.g., 9XX-7X-XXXX or 9XX-8X-XXXX). The IRS issues ITINs to individuals who are required to have a U.S. taxpayer identification number for tax purposes but who do not have and are not eligible to obtain a Social Security number (SSN). ITINs are used solely for federal tax purposes. They do not authorize employment in the U.S., provide eligibility for Social Security benefits, or serve as identification for non-tax purposes.
Who Needs an ITIN?
Most individuals who need an ITIN are non-resident aliens filing a U.S. federal tax return, resident aliens (based on days present in the U.S.) who are not eligible for an SSN, and certain other non-resident aliens who have U.S. tax reporting requirements. Common scenarios where an ITIN is necessary include:
- Filing a U.S. Tax Return: If you are a non-resident alien or resident alien who must file a U.S. tax return (such as Form 1040-NR for non-residents) but are ineligible for an SSN, you need an ITIN.
- Claiming Tax Treaty Benefits: If you are a non-resident alien eligible for benefits under a U.S. tax treaty and are not eligible for an SSN, you will need an ITIN to claim these benefits.
- Withholding on U.S. Source Income: Certain non-resident aliens receiving U.S. source income subject to withholding may need an ITIN, even if they do not file a tax return themselves, to ensure correct withholding.
- Reporting Requirements for U.S. Businesses: Foreign individuals who own or are involved with certain U.S. business structures, such as a U.S. LLC, may have reporting obligations. For instance, if you own a U.S. LLC that is a disregarded entity for tax purposes, you might need to file Form 5472 to report transactions between the LLC and yourself. This form requires a U.S. taxpayer identification number, which would be an ITIN if you don't have an SSN.
- Opening a U.S. Bank Account: While not all banks require an ITIN to open an account, some do, particularly if you are a non-resident without an SSN. This can be a crucial step for individuals planning to do business or invest in the U.S. Applying for a U.S. bank account often precedes other business setup steps like obtaining an EIN.
It's important to understand that an ITIN does not grant immigration status, work authorization, or any other benefits beyond tax processing. If you are unsure whether you need an ITIN, consulting with a tax professional or reviewing the IRS instructions for Form W-7 is recommended.
How to Apply for an ITIN
The application process for an ITIN involves submitting Form W-7, Application for IRS Individual Taxpayer Identification Number, along with original or certified copies of identity documents and a valid U.S. federal income tax return. You cannot apply for an ITIN without filing a tax return, unless you qualify for an exception. The IRS provides specific exceptions to the tax return filing requirement for certain applicants, such as those claiming tax treaty benefits or specific types of income.
The primary methods for submitting your Form W-7 application are:
- Mail: You can mail your completed Form W-7, supporting documents, and tax return directly to the IRS at the address specified in the Form W-7 instructions. The IRS will review your application, verify your documents, and issue your ITIN. Original documents will be returned, but processing can take several weeks.
- Certified Acceptance Agent (CAA): You can apply through a Certified Acceptance Agent (CAA). CAAs are individuals or entities authorized by the IRS to help taxpayers apply for ITINs. They can verify your original identification documents and forward your application to the IRS. Using a CAA can be faster as they often handle the document verification on-site, and your original documents do not need to be mailed to the IRS. itin.net is a service that can assist you in this process, connecting you with authorized CAAs.
- IRS Taxpayer Assistance Centers (TACs): Some IRS TACs offer ITIN application services by appointment. You must bring your original identification documents, and the TAC will verify them. However, not all TACs provide this service, and appointments can be limited.
Required Documentation for ITIN Application
To apply for an ITIN, you must provide original identification documents or certified copies from the issuing agency that prove your identity and foreign status. The IRS requires one of the following combinations of documents:
- One document from the 'A' list and one from the 'B' list:
- List A (Identity and Foreign Status): U.S. Consular Report of Birth Abroad, Foreign Passport, National Identity Card, U.S. Driver's License, Foreign Driver's License, U.S. State Driver's License, Civil Birth Certificate (foreign), National Health Insurance Card (Mexico), Military ID Card.
- List B (Identity and Foreign Status): Foreign Driver's License, Foreign University ID Card, U.S. State Voter's Registration Card, Certificate of Eligibility (Immigrants Only), Visa, U.S. Tribal National ID Card, Foreign Military Identification Card.
- One document from the 'C' list (Identity and Foreign Status): This list includes documents like a U.S. military ID card, U.S. passport, or national identity card from your country of origin. Note: While a U.S. passport can serve as a List C document, it does not prove foreign status. You would need a second document from List A or B to establish foreign status.
The most commonly used and recommended document is a valid, unexpired foreign passport because it satisfies both identity and foreign status requirements on its own. If you submit a passport, you generally do not need a second document.
If you are applying as a dependent and are under 18, you will need a birth certificate and a parent must apply with you. The parent needs to provide their identification and foreign status documents as well.
Remember to submit either original documents or certified copies from the issuing agency. If you mail original documents, the IRS will return them, but this can take time. Using a Certified Acceptance Agent (CAA) allows them to verify your original documents and return them to you immediately. This is one of the main advantages of using a service like itin.net to connect with a CAA.
Processing Times and Costs
There is no fee to apply for an ITIN directly with the IRS by mail or at a TAC. However, if you use the services of a Certified Acceptance Agent (CAA), they may charge a fee for their assistance in preparing and submitting your application, and for verifying your identity documents. These fees vary by CAA. The IRS itself does not charge for processing ITIN applications.
Processing times for ITIN applications can vary significantly. When applying by mail directly to the IRS, it can take anywhere from 7 to 11 weeks, especially during peak tax seasons. If you are filing your tax return along with the Form W-7, the processing time is generally included within the overall tax return processing. The IRS issues ITINs year-round.
- Peak Tax Season (January - April): Expect longer processing times. The IRS receives a high volume of applications during this period.
- Off-Peak Season (May - December): Processing times may be shorter, but can still range from several weeks to a couple of months.
Using a Certified Acceptance Agent (CAA) can sometimes expedite the initial verification step, but the actual ITIN assignment is done by the IRS. The IRS aims to process applications within 7 weeks but can take up to 11 weeks or longer during busy periods.
If you need to get an ITIN for a tax return that is due soon, it is advisable to apply as early as possible. Missing a tax deadline due to ITIN processing delays can result in penalties and interest. The IRS also issues IRS notice CP565 to confirm that an ITIN has been assigned.
What Happens After You Get Your ITIN?
Once your ITIN application is approved, the IRS will issue you an IRS notice CP565, which officially assigns your ITIN. This notice is important for your records. You should keep it in a safe place.
Your ITIN is valid for life unless you specifically request it to be cancelled or it is revoked or invalidated by the IRS. However, ITINs that have not been used on a federal tax return for three consecutive years will expire. The IRS has been re-instituting a renewal program for expired ITINs. If your ITIN has expired, you will need to renew it by submitting Form W-7 again, along with a valid tax return and updated identification documents. The IRS typically notifies taxpayers if their ITIN is set to expire.
An ITIN is critical for various U.S. tax obligations. For example, if you are a foreign owner of a U.S. business, such as a U.S. LLC, you might need your ITIN to file Form 5472 annually. This form is used to report certain transactions between a U.S. business and its foreign owner or related party. Failure to file this form can result in significant penalties. The requirements for Form 5472 are separate from the ITIN application process itself, but having an ITIN is often a prerequisite for filing it.
Furthermore, if you plan to engage in U.S. business activities, obtaining an ITIN is often one of the first steps. It may be necessary before you can obtain an Employer Identification Number (EIN) for your business, although an SSN is preferred for EIN applications. It can also be a prerequisite for opening a U.S. bank account, especially for non-residents. Many fintech platforms and traditional banks require a U.S. taxpayer identification number, and an ITIN can fulfill this requirement.
Common Mistakes and How to Avoid Them
Applying for an ITIN involves several steps, and common mistakes can lead to delays or rejections. Being aware of these pitfalls can streamline the process.
- Incomplete or Incorrectly Filled Form W-7: Ensure all sections of Form W-7 are completed accurately. Missing information, especially your name, address, and foreign tax identification number (if applicable), can cause delays. Double-check that your signature and date are present.
- Missing or Invalid Identification Documents: Submitting expired documents, photocopies instead of originals or certified copies, or an insufficient combination of documents is a frequent cause for rejection. Always refer to the Form W-7 instructions to ensure you have the correct documentation. Using a CAA to verify your documents can prevent this error.
- Failure to Include a Tax Return (or Exception): Most ITIN applications must be accompanied by a valid U.S. federal income tax return. Applicants who believe they qualify for an exception to the tax return filing requirement must clearly state the exception on their Form W-7 and provide supporting documentation, such as a tax treaty statement.
- Not Mailing to the Correct IRS Address: If mailing your application, ensure you use the most current address provided in the Form W-7 instructions. Addresses can change, and using an outdated address will delay processing.
- Document Verification Issues: If mailing original documents, there's a risk of loss or damage. If using a CAA, ensure they are properly authorized by the IRS. A service like itin.net can help you find a legitimate CAA.
- Typos in Personal Information: Even minor typos in your name or other personal details can cause issues, especially when matching your application to your tax return. Ensure consistency across all submitted documents.
To avoid these errors, carefully read the IRS instructions for Form W-7 and consult with a tax professional or a Certified Acceptance Agent if you have any doubts about your application.
ITIN vs. EIN: Understanding the Difference
It is essential to distinguish between an ITIN and an Employer Identification Number (EIN). While both are taxpayer identification numbers issued by the IRS, they serve different purposes and are for different entities.
- ITIN (Individual Taxpayer Identification Number): As discussed, this is for individuals who need a U.S. tax ID but cannot get an SSN. It is used for personal income tax reporting and related matters.
- EIN (Employer Identification Number): This is a nine-digit number assigned to business entities operating in the U.S. for tax reporting purposes. It is also known as a Federal Tax Identification Number. Businesses, including corporations, partnerships, and most LLCs, need an EIN to operate. You can apply for an EIN using Form SS-4.
While an ITIN is for an individual, an EIN is for a business. If you are forming a U.S. LLC, you will typically need to obtain an EIN for the LLC, even if you are a foreign owner without an SSN. The process for obtaining an EIN is separate from the ITIN application. You can learn more about applying for an EIN on our /ein service page. Understanding what are ITIN numbers and how they differ from EINs is fundamental for anyone involved in U.S. personal or business taxation.
How to Get Help with Your ITIN Application
Navigating the ITIN application process can be complex, especially for individuals unfamiliar with U.S. tax forms and procedures. Several resources are available to help.
- IRS Resources: The IRS website provides comprehensive instructions for Form W-7 and other relevant forms. Publication 1915,