An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the Internal Revenue Service (IRS) to individuals who are not eligible for a Social Security Number (SSN) but who are required to file a U.S. tax return. ITINs are also used by certain non-resident aliens who are required to file a U.S. tax return.
There are several benefits to obtaining an ITIN, including the ability to file a U.S. tax return, claim tax refunds, and avoid penalties for not filing. ITINs are also important for certain financial transactions, such as opening a bank account or applying for a loan.