Form W-7 (Application for IRS Individual Taxpayer Identification Number) is an IRS form used by individuals who are required to have a U.S. taxpayer identification number but are not eligible to obtain a Social Security Number (SSN). This form is necessary for applying for an Individual Taxpayer Identification Number (ITIN), which allows non-citizens and others to comply with U.S. tax laws.
An ITIN is a nine-digit tax processing number issued by the IRS to individuals who need to file a U.S. tax return or be claimed as a dependent or spouse on someone else’s tax return but cannot obtain an SSN. Common applicants include nonresident aliens required to file U.S. tax returns, U.S. resident aliens filing tax returns based on days present in the United States, dependents or spouses of U.S. citizens or resident aliens, and dependents or spouses of nonresident alien visa holders.
Form W-7 requires detailed personal information including full legal name, mailing address, foreign address, birth information, and country of citizenship. Applicants must provide original documentation or certified copies from the issuing agency to prove identity and foreign status, such as a passport, national identification card, U.S. driver’s license, birth certificate, or medical records for dependents under age six. The IRS does not accept photocopies or notarized copies of identity documents.
The form can be submitted by mail to the IRS ITIN Operation center, in person at IRS Taxpayer Assistance Centers, or through IRS-authorized Certifying Acceptance Agents who can verify original documents and forward certified copies to the IRS. Processing typically takes seven to eleven weeks during off-peak periods but may extend to nine to eleven weeks during peak tax season.
It’s crucial to understand that an ITIN does not provide legal immigration status, work authorization, eligibility for Social Security benefits, or the Earned Income Tax Credit. ITINs must be renewed if not used on a federal tax return for three consecutive years, and all ITINs issued before 2013 have expired and require renewal for continued use.
« Back to Glossary Index