Form W-7 is the official IRS application used to request an Individual Taxpayer Identification Number (ITIN). If you are not eligible for a Social Security Number but have U.S. tax filing obligations, Form W-7 is your required document. The ITIN is a nine-digit number that begins with 9 and is used only for federal tax purposes. This guide walks you through every section of Form W-7 with clear instructions.
Disclaimer: This is general information about completing Form W-7, not professional tax advice. For personalized assistance, consult with a tax professional or IRS-authorized Certified Acceptance Agent.
| Field | Details |
|---|---|
| Form Name | Form W-7 – Application for IRS Individual Taxpayer Identification Number |
| Purpose | To apply for or renew an ITIN |
| Who Needs It | Individuals not eligible for SSN who have U.S. tax obligations |
| Current Version | December 2024 |
| Where to Send | IRS ITIN Operation, Austin, TX 73301-0057 |
| Processing Time | 7 weeks (standard); 9-11 weeks during peak season |
Form W-7 is the official IRS application for an Individual Taxpayer Identification Number. The IRS created this form in 1996 to allow individuals who cannot obtain a Social Security Number to meet their federal tax obligations. Since the program started, the IRS has issued approximately 26 million ITINs through the end of 2022.
The ITIN serves one specific purpose: identifying taxpayers for federal tax filing. It allows individuals to file tax returns, claim refunds, and report income to the Internal Revenue Service. An ITIN does not provide work authorization or change your immigration status in any way.
Form W-7 is not a tax return, and filing it alone does not fulfill your tax obligations. It is separate from Form 1040, which is the actual income tax return you attach to your W-7 application. The form is also not a substitute for Form SS-5, which is the Social Security Number application.
Many applicants confuse the ITIN application with other tax forms they may need to complete. Understanding this distinction will prevent delays in your application process and tax return filing. The W-7 serves only as a request for a tax identification number.
Several categories of people need Form W-7 to obtain an ITIN. Nonresident aliens required to file a U.S. federal tax return but cannot get an SSN must apply using this form. This includes people who earn income in the United States through work, investments, or other sources.
Resident aliens, based on the substantial presence test, also use Form W-7 if they are not eligible for an SSN. Dependents and spouses of U.S. citizens or resident aliens often need ITINs to be claimed on tax returns. Students, professors, and researchers on certain visas who have tax filing requirements also fall into this category. According to research from the American Immigration Council, ITINs allow individuals to comply with U.S. tax laws regardless of their immigration status.
You may wonder whether Form W-7 applies to your situation. If you already have a Social Security Number, do not submit Form W-7. If you are a nonresident alien with no U.S. income, you generally do not need an ITIN unless claiming treaty benefits.
If your spouse is a U.S. citizen and you want to file jointly, you likely need an ITIN. If you are claiming a dependent who lives abroad, that dependent may need an ITIN for certain tax benefits. The ITIN is for tax purposes only and should not be your reason for opening bank accounts.
ITINs that have not been used on a tax return for three consecutive years expire automatically. If your ITIN has expired, you must submit Form W-7 to renew it before filing your tax return. The renewal process follows the same steps as a new application, but uses different checkboxes at the top of the form.
The IRS began deactivating unused ITINs under the PATH Act of 2015. If you receive a notice that your ITIN is expiring or has expired, submit Form W-7 as soon as possible. Filing with an expired ITIN causes delays in processing your tax return and any refund you may expect.
Before completing Form W-7, gather all necessary materials to avoid delays. You need a valid reason for applying, which corresponds to one of the boxes a-h on the form. Each box represents a different situation that qualifies you for an ITIN.
You must also have acceptable identification documents ready for submission. Most applicants submit a passport, which serves as proof of both identity and foreign status. If you do not have a passport, you may need a combination of documents.
Unless you meet an exception, you must attach a completed federal tax return to your Form W-7 application. The IRS will not issue an ITIN without seeing a valid tax purpose for your request. This requirement helps prevent fraud and misuse.
Leave the SSN field blank on your tax return for anyone applying for an ITIN. The IRS will assign the ITIN and add it to your return after processing your application. This is standard procedure for all W-7 submissions paired with tax returns.
Use this checklist to confirm you have addressed all sections of Form W-7:
| Box | Reason Code | Who It's For | Supporting Documents |
|---|---|---|---|
| a | Nonresident alien filing a U.S. tax return | Individuals with U.S. source income | Tax return, income docs, passport |
| b | Nonresident alien claiming tax treaty | Individuals claiming reduced withholding | Tax return, Form 8833, treaty docs |
| c | Student, professor, researcher filing | F-1, J-1, and M-1 visa holders with filing requirements | Tax return, passport, I-20/DS-2019 |
| d | Dependent of a U.S. citizen/resident | Children, parents, other dependents | Tax return, relationship proof, passport |
| e | Spouse of a U.S. citizen/resident | Spouses filing jointly or separately | Tax return, marriage certificate, passport |
| f | Student/professor NOT required to file | Claiming only treaty benefits | Exception docs, institution letter, passport |
| g | Family of a nonresident visa holder | Dependents of visa holders | Visa holder docs, relationship proof |
| h | Other | Situations not covered by a-g | Explanation letter, supporting evidence |
Box a applies to nonresident aliens who must file a U.S. federal tax return due to income earned in the United States. This is the most common reason code selected by applicants who have worked in the U.S. or received U.S. source income.
You must attach a completed tax return showing income that creates a filing requirement. Common mistakes include not attaching the tax return or selecting this box when another reason code fits better.
Box b is for nonresident aliens claiming reduced tax rates under a tax treaty between their home country and the United States. You must complete the additional information section and may need Form 8833.
This box requires you to identify the treaty country and the article number you are claiming. Review your country's tax treaty with the U.S. before selecting this option.
Box c applies to F-1, J-1, or M-1 visa holders filing a U.S. tax return. Include your I-20 (for students) or DS-2019 (for exchange visitors) with your application. Ensure your visa and educational documents are current.
Box d is for dependents being claimed on the tax return of a U.S. citizen or resident alien. Dependents must prove their relationship to the taxpayer and U.S. residency in most cases. Exceptions exist for dependents from Canada or Mexico.
Box e applies to spouses filing a joint return with a U.S. citizen or resident alien. Submit a marriage certificate with your application to prove the spousal relationship. The certificate must be original or certified.
Box f is for students not required to file but needing an ITIN for treaty benefits. Box g applies to family members of nonresident visa holders. Box h is a catch-all for situations not covered elsewhere—provide a written explanation.
| Exception | Category Name | Who Qualifies | Special Requirements |
|---|---|---|---|
| 1 | Passive income with withholding/treaty | Partnership, interest, annuity, and rental recipients | Form W-8, Schedule K-1, treaty docs |
| 2 | Wages or scholarship income | Students and scholars receiving payments | Institution letter, Form 8233/W-8BEN |
| 3 | Mortgage interest reporting | Foreign persons paying mortgage interest | Form 1098, loan documents |
| 4 | U.S. real property dispositions | Foreign persons selling U.S. property | Form 8288, closing documents |
| 5 | Treasury regulations | Other IRS regulatory situations | IRS notice, regulation citation |
The IRS allows certain applicants to obtain an ITIN without attaching a federal tax return. These exceptions recognize situations where a tax purpose exists even though no return filing is required.
Exception 1 covers passive income with third-party withholding or treaty benefits. Exception 2 applies to wages, scholarships, and fellowships. Exceptions 3-5 cover mortgage reporting, property sales, and regulatory requirements.
What you do: At the top of Form W-7, check the box for new ITIN or renewal. Then select one reason code from boxes a through h that matches your situation.
What happens next: The IRS uses this information to route your application correctly. Checking the wrong box can cause delays.
What you do: Enter your legal name exactly as shown on your identification documents. Use the format: last name, first name, middle name.
Common mistakes: Using nicknames or the wrong name order causes rejection. Every letter must match your documents exactly.
What happens next: The IRS establishes your ITIN record using this name. Future tax documents will use this name.
What you do: Complete only if your birth name differs from your current legal name. This includes changes from marriage, divorce, or a legal name change.
Documentation: Include proof of name change, such as a marriage certificate or court order if you complete this line.
What you do: Enter the address where you want the IRS to send correspondence. This can be a U.S. or foreign address.
Common mistakes: Incomplete addresses or missing apartment numbers result in returned mail.
What happens next: The IRS mails your ITIN letter and returns the original documents to this address.
What you do: Enter your permanent foreign address if different from Line 2. Students with temporary U.S. addresses often complete both lines.
What you do: Enter country of birth, city of birth, state/province, and date of birth in MM-DD-YYYY format.
Common errors: Using the day-month-year format confuses. Double-check all birth information against documents.
What you do: Enter the country where you hold citizenship. If you have dual citizenship, list both countries.
What you do: Enter your tax ID from your home country if one exists. Leave blank if your country does not issue such numbers.
What you do: Enter visa classification (F-1, J-1, etc.), visa number, expiration date, and entry date if you have a U.S. visa. Find this information on your passport's visa page.
What you do: If you selected Box c or f, enter the name and location of your institution and your length of stay in the U.S.
What you do: Check this box if you previously had an ITIN or IRS number. Enter the number and name under which it was issued. This is required for renewals.
What you do: Sign and date the form in ink. Applicants 18+ must sign themselves. Parents sign for children under 14.
What happens if unsigned: The form is returned without processing, causing weeks of delay.
What you do: Leave blank unless working with a Certified Acceptance Agent. The agent completes this section.
The IRS requires original documents or certified copies from the issuing agency. A certified copy has an official seal from the agency that issued the original. Notarized copies are not accepted.
The IRS accepts 13 document types. A passport alone proves both identity and foreign status. Without a passport, you need at least two documents—one proving identity, one proving foreign status.
Accepted documents include: passport, national ID card, U.S. driver's license, birth certificate, foreign driver's license, U.S. state ID, voter's registration card, military ID (U.S. or foreign), visa, USCIS documentation, medical records (under age 6), and school records (dependents under 14). Review the complete documents list before submitting.
Original documents return within 60 days after processing. Keep copies of everything you send before mailing.
Next Step: Before mailing Form W-7, double-check you have all the required supporting documents.
Standard mail: IRS ITIN Operation P.O. Box 149342 Austin, TX 78714-9342
Private delivery (FedEx, UPS, DHL): IRS ITIN Operation Mail Stop 6090-AUSC 3651 S. Interregional Hwy 35 Austin, TX 78741-0000
Apply in person at certain IRS Taxpayer Assistance Centers (TACs) that offer ITIN services. Call 1-844-545-5640 to schedule an appointment. TAC staff can review your documents and return them the same day.
Not all TAC locations offer document authentication. Confirm when making your appointment. This option is only available if you are in the United States.
A Certified Acceptance Agent (CAA) can review and authenticate your identification documents for you. You do not have to mail your original passport or other documents when using a CAA. The IRS Acceptance Agent Program authorizes CAAs to verify documents and submit applications on behalf of taxpayers.
CAAs conduct an in-person or video interview to verify your identity and documents. They then submit your application to the IRS on your behalf. This service typically costs between $200-$500 depending on location and complexity.
Working with a Certified Acceptance Agent offers several advantages over applying on your own. The most significant benefit is keeping your original documents in your possession. You never have to mail your passport to the IRS and risk it getting lost.
CAAs catch errors before submission. They review every line of your Form W-7 and verify your documents meet IRS requirements. This prevents rejections that would delay your application by weeks or months.
Applications submitted through CAAs often process faster. The IRS spends less time verifying documents that have already been authenticated by an authorized agent. Many applicants receive their ITIN sooner than the standard processing time.
Standard processing time is about 7 weeks by mail. During peak tax season (January-April), processing extends to 9-11 weeks. Applications from overseas may take longer due to mail transit times.
CAA submissions often process faster because documents are pre-verified. The IRS has less work to do when an agent has already authenticated everything. This can save several weeks compared to mailing applications directly.
Check your application status by calling the IRS at 1-800-829-1040. Wait at least 7 weeks before calling to allow for initial processing.
When your ITIN is assigned, you receive an official IRS letter (Notice CP565) at your mailing address. Keep this letter with your tax records.
Original documents should return within 60 days. If not received, call 1-800-908-9982 to check on them.
Pro Tip: Having a Certified Acceptance Agent review your form can prevent rejections and delays.
Not selecting a reason code (boxes a-h) and missing signatures are the most common errors that cause rejection.
What documents do I need with Form W-7?
Most applicants submit a passport, which proves both identity and foreign status. Without a passport, you need two documents from the IRS-approved list.
How long does Form W-7 approval take?
Standard processing is about 7 weeks. Peak season (January-April) takes 9-11 weeks.
Can I submit Form W-7 without a tax return?
Yes, if you qualify for one of five exceptions: passive income with withholding, scholarships, mortgage reporting, property sales, or regulatory requirements.
How much does Form W-7 cost?
The IRS charges no fee. CAA services typically cost $200-$500.
Do I need to send my passport?
If mailing directly to the IRS, yes. Using a CAA means you keep your passport—they authenticate it in person.
What if my ITIN expired?
Submit Form W-7 to renew. Check the renewal box and enter your previous ITIN in Line 6g.
Can family members apply together?
Yes. Attach all Form W-7 applications to one tax return. Each person needs their own form and documents.
What happens if Form W-7 is rejected?
You receive a letter explaining why. Correct the issue and resubmit with a copy of the rejection notice. There is no deadline to resubmit, but act quickly if you need the ITIN for a pending tax return.
What raises red flags with the IRS?
Incomplete applications, mismatched names, and multiple applications with different information trigger review.
Can I renew before expiration?
Yes. Early renewal avoids processing delays during tax season.
What if I file with an expired ITIN?
Your return processes, but certain benefits may be disallowed until renewal. Refunds are delayed.
For more answers, visit our ITIN FAQs.
The IRS rejects applications for many reasons, including missing information, incorrect documents, and unacceptable document types. You will receive a letter explaining why your application was denied and what steps you should take.
Rejection does not mean you cannot obtain an ITIN. It means you need to correct the problem and resubmit. Most rejections are fixable with proper attention to the requirements and careful review of documentation.
The IRS sends a rejection notice to the mailing address on your Form W-7. This letter describes the specific reason for rejection and provides instructions for resubmission.
Read the rejection letter carefully to understand what went wrong. The letter tells you if you need additional documents or corrected information. Your original documents are returned with the rejection notice.
After receiving a rejection, gather the missing or corrected information specified in the notice. Complete a new Form W-7 with corrections and include a copy of the rejection letter.
Submit your corrected application to the same address as your original submission. Include any new documentation required by the IRS. You do not pay a fee to resubmit a rejected application.
There is no deadline to resubmit a rejected application. However, if you need the ITIN for a pending tax return, act as quickly as possible to avoid further delays.
After resubmission, processing times are the same as for new applications. Plan for another 7-11 weeks, depending on the time of year. Peak season submissions take longer than off-season applications.
Completing Form W-7 correctly requires attention to detail and proper documentation. Many applicants find the process confusing, especially when dealing with reason codes, exceptions, and document requirements.
Easy Tax Store is an IRS-authorized Certified Acceptance Agent with over 10 years of experience helping thousands of clients obtain ITINs. Our team reviews your documents, completes your Form W-7 accurately, and submits your application to prevent rejections and delays.
Working with a CAA means you keep your original passport in your possession. We authenticate documents in person and handle IRS correspondence on your behalf.
Ready to get started? Contact us to schedule your ITIN application appointment.
Conclusion
Completing Form W-7 correctly is your first step toward meeting U.S. tax obligations as a non-SSN holder. Following these line-by-line instructions will help you avoid common errors and processing delays.
Key Steps to Remember:
Ready to submit? Review your completed Form W-7 one final time or contact a Certified Acceptance Agent for expert guidance through the ITIN application process.