How to get itin for spouse?

Question

ITINMay 25, 2026

How to get itin for spouse?

Learn how a U.S. citizen or resident alien can obtain an ITIN for their foreign spouse, covering eligibility, required documents, and the application process.

— Anonymous

1 Answer

Gokce Tandogdu ITIN Specialist, itin.net May 25, 2026 · Accepted Answer · 2026-05-25

A U.S. citizen or resident alien can apply for an ITIN for their foreign spouse if the spouse is not eligible for an SSN and requires an ITIN to comply with U.S. tax laws. This typically occurs when the spouse is a non-resident alien filing a U.S. tax return, such as a joint return with the U.S. citizen spouse, or when required for other tax purposes. The process involves completing Form W-7, Application for IRS Individual Taxpayer Identification Number, and submitting it with supporting documentation to the IRS. Understanding how to get an ITIN for a spouse is a common concern for individuals in mixed-nationality marriages who are navigating U.S. tax obligations.

Eligibility for a Spouse's ITIN

The primary condition for a foreign spouse to receive an ITIN is that they must not be eligible for a Social Security Number (SSN). An SSN is available to individuals authorized to work in the United States. If your spouse does not have work authorization, they cannot obtain an SSN and may therefore be eligible for an ITIN. The most common reasons for a foreign spouse to need an ITIN are:

Filing a U.S. tax return: If you are a U.S. citizen or resident alien married to a non-resident alien, you may choose to file a joint tax return. To do so, your non-resident alien spouse must have an ITIN. Even if you file as married filing separately, your spouse may still need an ITIN if they have U.S. source income or other tax filing obligations.
Complying with U.S. tax law: Certain U.S. tax provisions may require a foreign spouse to obtain an ITIN, even if they are not filing a tax return. For example, if your spouse is a beneficiary of a U.S. trust or estate, or if they are involved in a U.S. business that requires such identification.
Treaty Benefits: In some cases, a foreign spouse may need an ITIN to claim tax treaty benefits on U.S. source income, even if they are not otherwise filing a U.S. tax return.

It is important to note that the U.S. spouse's status (citizen or resident alien) is relevant for the filing status, but the ITIN application is for the foreign spouse. The application must demonstrate a valid tax reason for needing the ITIN.

Required Documentation for the W-7 Application

To apply for an ITIN for your spouse, you must submit Form W-7 along with original or certified copies of required identification documents and proof of foreign status. The IRS requires the following:

Identity Documents

Your spouse must provide one of the following documents that shows their full name, current address, and a recent photograph:

Passport: This is the most commonly used and preferred document. It must be valid and unexpired.
National Identity Card: This card must contain a photograph, name, address, date of birth, and expiration date. It must be issued by the applicant's country of citizenship or nationality.
U.S. Driver's License: Must be valid and unexpired.
Foreign Driver's License: Must be valid and unexpired.
U.S. State Identification Card: Must be valid and unexpired.
Foreign Military Identification Card: Must be valid and unexpired.
Visa: If the applicant is a dependent of a military member, a copy of the visa is acceptable.
Identification Card for Use Outside the United States by Members of the U.S. Armed Forces and Their Dependents: Must be valid and unexpired.

Foreign Status Documents

In addition to identity documents, your spouse must provide a document that proves their foreign status. This can be:

Birth Certificate: Must be accompanied by a certified English translation if not in English.
Foreign Passport: As mentioned above, this serves as both an identity and foreign status document.
National Identification Card: As mentioned above, this can also serve as proof of foreign status.
Civil Birth Certificate: Issued by a foreign government, accompanied by a certified English translation if not in English.

Proof of Tax Reason

This is a critical component of the Form W-7 application. You must demonstrate why your spouse needs an ITIN. This is typically done by submitting:

A U.S. federal income tax return (e.g., Form 1040-NR): This is the most common proof. The tax return must be complete and accurate, and it must be filed along with the Form W-7 application. If you are filing jointly with your spouse, you will include their information on your Form 1040.
A statement explaining the tax reason: In certain limited circumstances, if a tax return is not yet required but an ITIN is needed (e.g., for treaty benefits on passive income), a detailed statement explaining the tax reason may be submitted. However, filing a tax return is the most straightforward and universally accepted method.

The Application Process: Step-by-Step

Applying for an ITIN for your spouse involves several distinct steps. The method you choose can impact processing times and convenience.

Option 1: Mail the Application to the IRS

This is the most direct method but often has the longest processing times. You will:

Complete Form W-7: Fill out the form accurately and completely. Ensure all sections are answered, and your spouse's name matches their identification documents exactly.
Gather Required Documents: Collect your spouse's original or certified copies of identity and foreign status documents, and the proof of your tax reason (e.g., your filed tax return). You will also need to sign the Form W-7 under penalty of perjury.
Mail the Package: Send the completed Form W-7, your spouse's original or certified documents, and your tax return (if applicable) to the IRS address listed in the Form W-7 instructions. Be aware that sending original documents to the IRS carries some risk; certified copies from the issuing agency are preferable if available.
Wait for Processing: The IRS will process your application and mail your spouse's original documents back to you. This can take several weeks to several months.

Option 2: Apply Through a Certified Acceptance Agent (CAA)

This is often the most convenient method as it allows you to avoid mailing original identification documents. A CAA is an individual or entity authorized by the IRS to help applicants obtain ITINs. Itin.net is a service that can assist you in this process. The steps are:

Find a CAA: Identify a local or remote CAA. Using a service like itin.net can simplify this step.
Complete Form W-7: Fill out the Form W-7 with the assistance of the CAA.
Present Documents to the CAA: Instead of mailing your spouse's original documents, you will present them to the CAA. The CAA will verify the authenticity of the documents and then send certified copies, along with the Form W-7, to the IRS. This means your original documents are returned to you immediately.
IRS Review: The IRS reviews the application and documents submitted by the CAA.
Receive ITIN: If approved, the IRS will assign an ITIN and send a Form W-7 notification (typically CP-565) to your spouse.

Option 3: Apply in Person at an IRS Taxpayer Assistance Center (TAC)

Some IRS TACs offer in-person ITIN application services. You must schedule an appointment in advance. The process is similar to using a CAA, where you present your original documents, and the IRS staff will verify them. However, TACs may have limited availability and may not offer all ITIN services. It's crucial to check with your local TAC for details and to book an appointment.

Processing Times and Costs

There is no fee to apply for an ITIN directly from the IRS. However, if you use a Certified Acceptance Agent (CAA) service, they may charge a fee for their assistance. This fee is separate from any IRS processing.

The IRS processing times for ITIN applications can vary significantly. Historically, during peak tax seasons, processing could take up to 11 weeks or more. Outside of peak season, it might be closer to 7-10 weeks. These times are subject to change based on IRS workload and staffing.

Mail Applications: Can take the longest, often 10-12 weeks, sometimes more during busy periods.
CAA Applications: Generally processed faster by the IRS because they are pre-vetted. The CAA's own processing time to submit the application to the IRS is additional but typically efficient.
In-Person at TAC: Similar to CAA processing once submitted to the IRS.

It is advisable to apply for the ITIN well in advance of any tax deadlines or other critical dates to account for potential delays.

Common Mistakes to Avoid

When applying for an ITIN for a spouse, several common mistakes can lead to delays or rejections:

Incomplete or Inaccurate Form W-7: Missing information, incorrect names, or illegible entries are frequent issues. Ensure all fields are filled out correctly and match the supporting documents precisely.
Incorrect Documentation: Submitting expired identification, documents that do not meet IRS requirements, or failing to provide proof of foreign status can cause rejection. Always double-check the latest IRS guidelines.
Missing Tax Reason Documentation: Forgetting to include the required tax return or a clear explanation of the tax necessity for the ITIN is a primary reason for denial.
Not Sending Original or Certified Documents (if mailing): If you mail your application, you must send original documents or certified copies from the issuing agency. Photocopies are not accepted. If you are concerned about mailing originals, use a CAA.
Incorrect Mailing Address: Sending the application to the wrong IRS address can lead to significant delays.
ITIN vs. SSN Confusion: Applying for an ITIN when the individual is eligible for an SSN will result in rejection. Confirm eligibility for an SSN first.

What Happens After the ITIN is Issued?

Once the IRS approves the Form W-7 application, your spouse will receive an official notification letter from the IRS containing their assigned ITIN. This notification is typically Form CP-565. This letter is important and should be kept in a safe place.

Using the ITIN: Your spouse can now use this ITIN for all U.S. tax filing purposes. This includes filing tax returns, claiming tax benefits, and reporting U.S. income.
ITIN Renewal: ITINs are generally valid for the lifetime of the holder unless revoked or taken out of circulation by the IRS. However, the IRS has implemented a renewal program for ITINs that have not been used on a federal tax return for three consecutive tax years. Additionally, certain ITINs with middle digits 70, 71, 72, or 81 were designated for renewal. If your spouse's ITIN falls into one of these categories and they wish to continue using it, they may need to renew it. The renewal process is similar to the initial application, requiring updated documentation and a tax reason.
Future Tax Filings: When filing future tax returns, your spouse must use their assigned ITIN. This is crucial for accurate processing by the IRS.

Next Steps for U.S. Residents with Foreign Spouses

Obtaining an ITIN for your spouse is often just one step in managing your combined U.S. tax and financial obligations. Depending on your circumstances, you might also consider:

U.S. LLC Formation: If you and your spouse are planning to start a business in the U.S., forming a U.S. LLC is a common structure. This may require obtaining an Employer Identification Number (EIN) for the business. You can learn more about how to get an EIN by filing Form SS-4.
U.S. Bank Account: For business or personal financial management, opening a U.S. bank account can be beneficial. Many banks have specific requirements for non-residents, and having an ITIN or EIN can be helpful.
Tax Planning: Consult with a qualified tax professional to understand the implications of filing jointly versus separately, potential tax treaty benefits, and any other U.S. tax requirements that may apply to your mixed-nationality marriage.

If you need assistance with the ITIN application process, consider using a service that offers guidance and support, such as itin.net. For complex tax situations, seeking advice from a tax professional or an attorney specializing in international taxation is highly recommended. Gokce Tandogdu, an ITIN Specialist, can provide insights on these matters.