What we verified in “What an ITIN is and what it is for”

Statements and where we checked them

The statements with rules, figures or dates, with the exact place in the source and the date we checked them.

1. An ITIN is a 9-digit number the IRS issues if you need a U.S. taxpayer identification number for federal tax purposes and you are not eligible for a Social Security number (SSN); you need one if you have a federal tax purpose and you are not eligible for an SSN.

   Sources 1 · Individual taxpayer identification number (ITIN), last reviewed October 28, 2025: 'An ITIN is a 9-digit number the IRS issues if you need a U.S. taxpayer identification number for federal tax purposes'; 'You need an ITIN if you have a federal tax purpose and you're not eligible for an SSN' · Checked October 17, 2026

2. The IRS issues the ITIN for federal tax purposes only; an ITIN does not qualify you for Social Security benefits or the Earned Income Tax Credit, does not provide or change immigration status, does not authorize you to work legally in the U.S. and does not serve as identification outside the federal tax system.

   Sources 1 · Individual taxpayer identification number (ITIN), 'What an ITIN is used for': 'An ITIN is issued by the IRS for federal tax purposes only'; 'Qualify you for Social Security benefits or the Earned Income Tax Credit'; 'Provide or change immigration status'; 'Authorize you to work legally in the U.S.'; 'Serve as identification outside the federal tax system' · Checked October 17, 2026

3. The Form W-7 instructions say the ITIN is for federal tax purposes only, does not entitle you to Social Security benefits and does not change your immigration status or your right to work in the United States.

   Sources 4 · Instructions for Form W-7 (Rev. 12/2024), 'Purpose of Form': 'The ITIN is for federal tax purposes only'; 'An ITIN doesn't entitle you to social security benefits and doesn't change your immigration status or your right to work in the United States' · Checked October 17, 2026

4. According to the IRS, you have a federal tax purpose when you are legally required to file a federal income tax return; want to claim a refund or allowable tax benefit, or report income, by filing a return; can be claimed as a spouse or dependent for an allowable tax benefit; or must provide a taxpayer identification number for another federal tax purpose. Generally, a return with all zero entries does not show a federal tax purpose.

   Sources 1 · Individual taxpayer identification number (ITIN), 'What's a federal tax purpose': 'Are legally required to file a U.S. federal income tax return'; 'Want to claim a refund or allowable tax benefit or report income by filing a tax return'; 'Can be claimed as a spouse or dependent for an allowable tax benefit'; 'Must provide a tax identification number for another federal tax purpose'; 'a tax return that contains all zero entries will not show a federal tax purpose' · Checked October 17, 2026

5. According to the IRS, if you are a resident alien, a nonresident alien or their spouse or dependent, you can apply for an ITIN regardless of immigration status; U.S. citizens, lawful permanent residents (green card holders) and anyone eligible for an SSN do not need one.

   Sources 1 · Individual taxpayer identification number (ITIN), 'Who's eligible for an ITIN' and 'Who doesn't need an ITIN': 'If you're a resident alien, nonresident alien or their spouse or dependent, you can apply for an ITIN regardless of immigration status'; 'Permanent legal resident of the U.S. (green card holder)'; 'Anyone eligible for an SSN' · Checked October 17, 2026

6. According to the IRS, a spouse or dependent is only eligible for an ITIN if they can be claimed for an allowable tax benefit or file their own return; allowable tax benefits include filing a joint return with a spouse who is a U.S. citizen or resident alien, the child and dependent care credit and the credit for other dependents.

   Sources 1 · Individual taxpayer identification number (ITIN), 'Spouse or dependent' and 'Allowable tax benefits': 'You're only eligible for an ITIN if either'; 'You can be claimed for an allowable tax benefit'; 'You file your own tax return'; 'you can file a joint tax return with a spouse who's a U.S. citizen or resident alien'; 'Child and dependent care credit'; 'Credit for other dependents (ODC)' · Checked October 17, 2026

7. According to the Form W-7 instructions, applicants claimed as dependents must also prove U.S. residency, except dependents of U.S. military personnel stationed overseas and certain applicants from Canada or Mexico; a passport without a date of entry into the United States is not accepted as a stand-alone document for certain dependents; medical records are valid only for dependents under age 6, and school records only for dependents under age 24 who are students.

   Sources 4 · Instructions for Form W-7 (Rev. 12/2024), 'Supporting Documentation Requirements': 'Applicants claimed as dependents must also prove U.S. residency'; 'dependent of U.S. military personnel stationed overseas'; 'from Canada or Mexico'; 'A passport that doesn't have a date of entry into the United States won't be accepted as a stand-alone identification document for certain dependents'; 'Medical records (valid only for dependents under age 6)'; 'School records (valid only for a dependent under age 24, if a student)' · Checked October 17, 2026

8. According to the Form W-7 instructions, do not complete Form W-7 if you have an SSN or are eligible to get one; you are eligible if you are a U.S. citizen or have been admitted by the United States for permanent residence or U.S. employment; you request an SSN from the Social Security Administration with Form SS-5; and if you have an SSN application pending, do not file Form W-7.

   Sources 4 · Instructions for Form W-7 (Rev. 12/2024), 'Social security numbers': 'Don't complete Form W-7 if you have an SSN or if you're eligible to get an SSN'; 'You're eligible for an SSN if you're a U.S. citizen or if you've been admitted by the United States for permanent residence or U.S. employment'; 'To get an SSN, see Form SS-5, Application for a Social Security Card'; 'If you have an application for an SSN pending, don't file Form W-7' · Checked October 17, 2026

9. According to the IRS, you cannot have both an ITIN and an SSN; once you get an SSN, you stop using your ITIN, use the SSN for tax purposes and notify the IRS, by mail or at a local IRS office, so it combines all your tax records under your SSN; if you do not notify it, you may not receive credit for all wages paid and taxes withheld.

   Sources 1 · Individual taxpayer identification number (ITIN), 'If you get a Social Security number (SSN)': 'You can't have both an ITIN and an SSN'; 'Stop using your ITIN'; 'Use your SSN for tax purposes'; 'We'll combine all your tax records under your SSN'; 'you may not receive credit for all wages paid and taxes withheld'; 'You can notify us by mail or at a local IRS office' · Checked October 17, 2026

10. According to the IRS, you apply for an ITIN on or before your tax return due date, with the return inside the same application package and not filed separately; you can apply at any time if you are filing a prior-year return or meet an exception; to claim certain credits, the ITINs of you, your spouse (if filing jointly) and your dependent must be assigned by the return's due date, including extensions; the assignment date is generally the date the IRS receives your package if nothing else was needed.

    Sources 1 · Individual taxpayer identification number (ITIN), 'When to apply for an ITIN': 'Apply on or before your tax return due date'; 'Include the tax return in your ITIN application package'; 'Don't file it separately'; 'You can apply for an ITIN at any time if you're filing a prior year return or you meet an exception to the filing requirement'; 'by the due date of your tax return (including extensions) to be eligible to claim certain credits'; 'The ITIN assignment date is generally the date the IRS receives your ITIN application package' · Checked October 17, 2026

11. According to the IRS, you do not need an ITIN to request an extension of time to file or to make estimated tax payments; on those forms you write 'ITIN TO BE REQUESTED' where the number goes, and you do not attach a W-7.

    Sources 1 · Individual taxpayer identification number (ITIN): 'You don't need an ITIN to apply for an extension of time to file your tax return'; 'You don't need an ITIN to make estimated tax payments'; 'ITIN TO BE REQUESTED'; 'Don't include a W-7 with your Form 4868' · Checked October 17, 2026

12. According to the IRS, the application package contains Form W-7 (each family member applying for an ITIN completes their own), the federal income tax return (Form 1040 or 1040-NR) unless you meet an exception, and the supporting documents; you apply by mail or in person: for free at an IRS Taxpayer Assistance Center with ITIN services (getting an appointment may take several weeks) or at a VITA site with ITIN services, or with an agent approved by the IRS, whose fees may vary.

    Sources 2 · How to apply for an ITIN, last reviewed February 22, 2026: 'For families, each person applying for an ITIN must have a completed Form W-7'; 'Form 1040-NR, U.S. Nonresident Alien Income Tax Return'; 'In certain cases, you may meet an exception to the filing requirement'; 'Apply for free at a Taxpayer Assistance Center in the U.S.'; 'It may take several weeks to get an appointment at a Taxpayer Assistance Center'; 'Volunteer Income Tax Assistance (VITA) site with ITIN services'; 'Apply in the U.S. or abroad with an agent approved by the IRS. Fees may vary.' · Checked October 17, 2026

13. According to the IRS, in person you can get most supporting documents authenticated and returned immediately: a Taxpayer Assistance Center reviews your completed W-7, authenticates most documents and returns them at the end of the appointment; at a VITA site with ITIN services, a certifying agent helps you complete the W-7 and also authenticates most documents; centers do not authenticate dependents' school and medical records, and certifying agents do not authenticate foreign military ID cards or dependents' documents other than passports and birth certificates: those are mailed with the package.

    Sources 2 · How to apply for an ITIN, 'Apply in person': 'You can get most supporting documents authenticated and returned immediately'; 'Review your completed Form W-7'; 'Return authenticated documents at the end of the appointment'; 'Complete and review your Form W-7'; 'except for school and medical records for dependents'; 'CAAs at VITA sites can't authenticate foreign military ID cards or documents for dependents except passports and birth certificates'; 'These must be mailed with the ITIN application package' · Checked October 17, 2026

14. By U.S. Postal Service, the application goes to Internal Revenue Service, Austin Service Center, ITIN Operation, P.O. Box 149342, Austin, TX 78714-9342.

    Sources 2 · How to apply for an ITIN, 'Apply by mail', U.S. Postal Service: 'Austin Service Center'; 'ITIN Operation'; 'P.O. Box 149342'; 'Austin, TX 78714-9342' · Checked October 17, 2026

15. The IRS asks you to allow 7 weeks to be notified about your application status, and 9 to 11 weeks in tax season (January 15 to April 30) or if you applied from overseas; documents you mailed are returned to the address on line 2 of your Form W-7 within 60 days.

    Sources 2 · How to apply for an ITIN, 'After you apply': 'Allow 7 weeks for us to notify you about your ITIN application status'; 'It can take 9-11 weeks if it's tax season (January 15 to April 30) or if you applied from overseas'; 'We'll return supporting documents to the mailing address on line 2 of your Form W-7 within 60 days' · Checked October 17, 2026

16. According to the IRS, after you apply you may receive Notice CP565 (you were assigned an ITIN and need to take no further action), CP566 (more information is needed to process your application) or CP567 (your application was rejected and you must resubmit it).

    Sources 2 · How to apply for an ITIN, 'Notices you may receive': 'CP565 Notice – We assigned you an ITIN'; 'You don't need to take further action'; 'CP566 Notice – We need more information to process your ITIN application'; 'CP567 Notice – Your ITIN application was rejected. You must resubmit it.' · Checked October 17, 2026

17. According to the IRS, Notice CP565 tells you that you were given an ITIN; you should check that your name and date of birth are right, use the ITIN on your federal tax returns and let the IRS know if you ever receive an SSN; you do not need to respond to the notice and should keep a copy; and the ITIN is not for identification: it is only for tax purposes.

    Sources 6 · Understanding your CP565 notice (last reviewed August 11, 2026): 'We gave you an individual taxpayer identification number (ITIN)'; 'Make sure the name and date of birth we have on record for you is right'; 'Use your ITIN to file federal tax returns or tax reporting documents'; 'not necessary for you to respond to the notice'; 'Keep a copy of your notice for your files'; 'It is only for tax purposes' · Checked October 17, 2026

18. According to the Form W-7 instructions, there are 13 acceptable documents to prove identity and foreign status; the passport is the only stand-alone document; without it you must submit at least two types of documents from the list; a national identification card must contain name, photograph, address, date of birth and expiration date; documents must be originals or copies certified by the issuing agency and must be current; you may be able to get certified copies at an embassy or consulate; and an original birth certificate is required for applicants under 18 who do not provide a valid passport.

    Sources 4 · Instructions for Form W-7 (Rev. 12/2024), 'Supporting Documentation Requirements': 'There are 13 acceptable documents'; 'Passport (the only stand-alone document'; 'you must submit at least two types of documents'; 'National identification card (must contain name, photograph, address, date of birth, and expiration date)'; 'certified copies of these documents from the issuing agency'; 'The documentation you provide must be current'; 'You may be able to request a certified copy of documents at an embassy or consulate'; 'An original birth certificate is required if the applicant is under age 18 and hasn't provided a valid passport' · Checked October 17, 2026

19. According to the Form W-7 instructions, if you file the English Form W-7, all future ITIN notices and correspondence come in English; if you prefer them in Spanish, file Form W-7(SP).

    Sources 4 · Instructions for Form W-7 (Rev. 12/2024), 'Applying for an ITIN for the first time': 'all future ITIN notices and correspondence that you receive will be in English'; 'If you prefer to receive them in Spanish, submit Form W-7(SP)' · Checked October 17, 2026

20. According to the Form W-7 instructions, you cannot e-file a return using an ITIN in the calendar year the ITIN is assigned; from the following year on, you can.

    Sources 4 · Instructions for Form W-7 (Rev. 12/2024), 'When To Apply': 'You can't electronically file (e-file) a return using an ITIN in the calendar year the ITIN is assigned'; 'Once your ITIN is assigned, you can e-file returns in the following years' · Checked October 17, 2026

21. According to the IRS, you can get help applying for an ITIN from an IRS-approved acceptance agent, whose fees may vary; a certifying acceptance agent (CAA) helps complete Form W-7, authenticates supporting documents (except foreign military ID cards and dependents' documents other than passports and birth certificates) and returns them immediately; a non-certifying acceptance agent reviews and mails the documents; non-certifying agents are marked on the list with an asterisk, and the IRS publishes the list by state.

    Sources 5 · ITIN acceptance agents (last reviewed August 24, 2026): 'Fees for service may vary'; 'Helps complete Form W-7'; 'Authenticates supporting documents'; 'Returns authenticated documents immediately'; 'Reviews and mails supporting documents'; 'Acceptance agents are marked on the list with an asterisk'; 'Agents in the U.S.' · Checked October 17, 2026

22. According to the IRS, if an ITIN is not used on a federal tax return for any 3 consecutive tax years, it expires on December 31 after the third tax year of non-use; to renew it you complete Form W-7 for a renewal and check the box 'Renew an existing ITIN'.

    Sources 3 · How to renew an ITIN, last reviewed November 17, 2025: 'it expires on December 31 after the third tax year of non-use'; 'complete Form W-7 for a renewal'; 'Check the box Renew an existing ITIN' · Checked October 17, 2026

23. According to the IRS, you must renew an expired ITIN if it will be included on a federal tax return; if it is only used on information returns such as Form 1099, you do not need to renew it; if you file with an expired ITIN, processing may be delayed and you may not be able to claim certain credits until it is renewed, which may mean a reduced refund or penalties and interest.

    Sources 3 · How to renew an ITIN: 'You must renew an expired ITIN if it will be included on a U.S. federal tax return'; 'If your ITIN is only used on information returns that report payments you receive, like Form 1099, you don't need to renew it'; 'There may be a delay in processing your return'; 'You may not be able to claim certain credits unless your ITIN is renewed'; 'This may result in a reduced refund or penalties and interest' · Checked October 17, 2026

24. According to the IRS, the VITA and TCE programs offer free basic tax return preparation; many sites serve people who generally make about $70,244 or less (the IRS sets no program-wide income limit and each site may set its own), persons with disabilities and limited English-speaking taxpayers; some VITA sites offer certifying acceptance agent (CAA) service; and you find a site with the IRS locator or by calling 800-906-9887.

    Sources 7 · Free tax return preparation for qualifying taxpayers, last reviewed October 12, 2026: 'offer free basic tax return preparation to qualified individuals'; 'People who generally make about'; '70,244 or less'; 'individual VITA sites may establish their own'; 'Limited English-speaking taxpayers'; 'Some VITA sites offer CAA service to taxpayers along with their VITA program'; 'use the VITA Locator Tool or call 800-906-9887' · Checked October 17, 2026

25. According to the Department of Justice's Executive Office for Immigration Review (EOIR), only certain individuals can represent you, including validly licensed attorneys and accredited representatives; notarios, document preparers, immigration consultants and travel agents are not allowed to practice law: they cannot give you legal advice, tell you what immigration benefit to apply for or whether you are eligible, or represent you in immigration court, and they are breaking the law if they do.

    Sources 8 · Can Someone Represent You Before EOIR?: 'Only certain individuals can represent you before EOIR'; 'Those include validly licensed attorneys and accredited representatives'; 'Notarios, document preparers, immigration consultants, and travel agents are not allowed to practice law'; 'They cannot give you legal advice, tell you what immigration benefit to apply for, tell you if you are eligible for immigration relief, or represent you in immigration court'; 'They are breaking the law if they do' · Checked October 17, 2026

26. According to EOIR, the Recognition and Accreditation program aims to increase the availability of competent immigration legal representation for low-income and indigent persons; accredited representatives may only provide immigration legal services through recognized organizations, and only non-profit, federally tax-exempt entities may apply to be recognized.

    Sources 9 · Recognition & Accreditation (R&A) Program: 'competent immigration legal representation for low-income and indigent persons'; 'Accredited representatives may only provide immigration legal services through recognized organizations'; 'Only non-profit, federally tax-exempt entities may apply to be recognized' · Checked October 17, 2026

27. EOIR publishes the list of recognized organizations, the list of accredited representatives and a list of organizations and representatives by state.

    Sources 10 · Recognition & Accreditation (R&A) Roster Reports: 'Recognized Organizations List'; 'Accredited Representatives List'; 'Organizations and Representatives, Listed by State' · Checked October 17, 2026

28. According to the CFPB, the identification number a bank or credit union verifies when you open an account can be a Social Security number or an ITIN, among others; they usually also ask for a photo ID issued by the U.S. government, a state or a foreign government; interest is money that is subject to tax, so to open an interest-bearing account you need a Social Security number or ITIN, and without one you may be able to open a no-interest account only.

    Sources 11 · Checklist for opening a bank or credit union account (A Newcomer's Guide to Managing Money, 3/2021): 'identification number can be a social security number, individual taxpayer identification'; 'a form of identification with your picture, issued by the U.S. government, a state government, or a foreign government'; 'interest is money that is subject to tax'; 'to open an interest-bearing account, you need a Social Security number or ITIN'; 'without this, you may be able to open a no-interest account only' · Checked October 17, 2026

29. The Fannie Mae Selling Guide requires that each borrower have a valid Social Security number or an ITIN, in addition to meeting existing legal residency and documentation requirements.

    Sources 12 · Selling Guide B2-2-01, General Borrower Eligibility Requirements, 'Tax Identification Numbers': 'requires that each borrower have a valid Social Security number or Individual Taxpayer Identification Number (ITIN), in addition to meeting existing legal residency and documentation requirements' · Checked October 17, 2026