An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the Internal Revenue Service. It is a nine-digit number that always begins with the number 9 and has a 7 or 8 in the fourth digit, example 9XX-7X-XXXX.

IRS issues ITINs to individuals who are required to have a U.S. taxpayer identification number but who do not have, and are not eligible to obtain a Social Security Number (SSN) from the Social Security Administration (SSA).

ITINs are issued regardless of immigration status because both resident and nonresident aliens may have U.S. tax return and payment responsibilities under the Internal Revenue Code. Individuals must have a filing requirement and file a valid federal income tax return to receive an ITIN, unless they meet an exception.

ITINs are for federal tax reporting only, and are not intended to serve any other purpose. An ITIN does not authorize work in the U.S. or provide eligibility for Social Security benefits or the Earned Income Tax Credit. ITINs are not valid identification outside the tax system.

IRS issues ITINs to help individuals comply with the U.S. tax laws, and to provide a means to efficiently process and account for tax returns and payments for those not eligible for Social Security Numbers.

IRS issues ITINs to foreign nationals and others who have federal tax reporting or filing requirements and do not qualify for SSNs. A non-resident alien individual not eligible for an SSN, who is required to file a U.S. tax return only to claim a refund of tax under the provisions of a U.S. tax treaty, needs an ITIN. Examples of individuals who need ITINs include:

	Non-resident alien filing a U.S. tax return and not eligible for an SSN
	U.S. resident alien (based on days present in the United States) filing a U.S. tax return and not eligible for an SSN
	Dependent or spouse of a U.S. citizen/resident alien
	Dependent or spouse of a non-resident alien visa holder

If you do not have an SSN and are not eligible to obtain an SSN, but you have a requirement to furnish a federal tax identification number or file a federal income tax return, you must apply for an ITIN. By law, an alien individual cannot have both an ITIN and an SSN.

IRS processes returns showing SSNs or ITINs in the blanks where tax forms request SSNs. IRS no longer accepts, and will not process, forms showing "SSA205c," "applied for," "NRA," blanks, etc.

No. ITINs are not valid identification outside the tax system. Since ITINs are strictly for tax processing, IRS does not apply the same standards as agencies that provide genuine identity certification.

ITIN applicants are not required to apply in person, and IRS does not further validate the authenticity of identity documents. ITINs do not prove identity outside the tax system, and should not be offered or accepted as identification for non-tax purposes.

No. ITINs are for federal income tax purposes only.

The revisions to the ITIN application process will help ensure ITINs are used for their intended tax administration purposes.

IRS has streamlined the number of documents the agency will accept as proof of identity to obtain an ITIN. There are now 13 acceptable documents.

An original, or a certified or notarized copy, of an UNEXPIRED passport is the only document that is accepted for both identity and foreign status. If you do not have a passport, you must provide a combination of current documents that contain expiration dates - we accept docs issued within 12 months of the application if no expiration date is normally available. The documents must also show your name and photograph, and support your claim of foreign status.

IRS will accept certified or notarized copies of a combination (two or more) of the following documents, in lieu of a passport:

	National identification card (must show photo, name, current address, date of birth, and expiration date)
	U.S. driver's license
	Civil birth certificate
	Foreign driver's license
	U.S. state identification card
	Foreign voter's registration card
	U.S. military identification card
	Foreign military identification card
	Visa
	U.S. Citizenship and Immigration Services (USCIS) photo identification
	Medical records (dependents - under 14 years old - only)
	School records (dependents and/or students - under 25 years old - only)

Use the January 2006 revision of Form W-7, Application for IRS Individual Taxpayer Identification Number to apply. Attach a valid federal income tax return unless you qualify for an exception, and include your original or certified proof of identity documents. Because you are filing your tax return as an attachment to your ITIN application, you should not mail your return to the address listed in the Form 1040, 1040A or 1040EZ instructions. Instead, send your return, Form W-7 and proof of identity documents to the address listed in the Form W-7 instructions:

Internal Revenue Service
Philadelphia Service Center
ITIN Unit, P.O. Box 447
Bensalem, PA 19020

You may also apply using the services of an IRS-authorized Acceptance Agent or visit an IRS Taxpayer Assistance Center in lieu of mailing your information to the IRS in Philadelphia. TACs in the United States provide in-person help with ITIN applications on a walk-in or appointment basis. Applicants outside the United States should contact an overseas the IRS office to find out if that office accepts Form W-7 applications. The IRS's ITIN Unit in Philadelphia issues all numbers by mail.

You should complete Form W-7 as soon as you are ready to file your federal income tax return, since you need to attach the return to your application.

If you meet one of the exceptions and do not need to file a return, submit Form W-7, along with the documents required to meet your purpose for needing an ITIN, as soon as possible after you determine that you are covered by that exception.

You can apply for an ITIN any time during the year; however, if the tax return you attach to Form W-7 is filed after the return's due date, you may owe interest and/or penalties. You should file your current year return by the April 15 deadline to avoid this.

If you qualify for an ITIN and your application is complete, you will receive a letter from the IRS assigning your tax identification number, usually within four to six weeks. The IRS is changing from an ITIN card to an authorization letter to avoid any possible similarities with a Social Security Number card. Current ITIN holders' cards will not be replaced; they should continue to use the numbers previously issued when they need to supply identifying numbers for tax purposes.

If you have not received your ITIN or other correspondence six weeks after applying, you may call the IRS to find out the status of your application.

You may call the IRS toll-free at 1-800-829-1040 for information and help in completing your Form W-7 and your tax return, or to check on the status of your application six weeks after submitting Form W-7. Assistance is also available by appointment at IRS Taxpayer Assistance Centers (TACs) in the United States provide in-person help with ITIN applications on a walk-in or appointment basis. Applicants outside the United States may contact an overseas IRS office to find out if that office accepts Form W-7 applications. You may also use the services of an IRS-authorized Acceptance Agent.

An Acceptance Agent is an individual, business or organization (college, financial institution, accounting firm, etc.) authorized by IRS to assist individuals in obtaining ITINs. Acceptance Agents review applicants' documentation, complete a certificate of accuracy, and forward the certificate and application to the IRS for processing. Some Acceptance Agents may charge a fee. Click here for a list of Acceptance