Form W-7 is used to apply for a USTAXID or often referred to as ITIN [Individual Tax Identification Number], This application process is required for non-citizens who aren’t eligible to receive a Social Security number but need to file a federal tax return with the IRS for income from US sources. A common scenario includes a foreign person with a United States based income filing a 1040Nonresident Federal Tax Return or US citizen/resident alien with a foreign spouse filing a joint 1040 tax return with a Married filing Jointly status.
This article will cover the basics of obtaining and using an Individual Tax Identification Number (ITIN) for your spouse if you are a U.S. citizen or resident alien, but your spouse is not. It also covers some common questions
What is an ITIN and how can you apply for one? Individual Tax Identification Number or ITIN is an USTAX ID starting with digit 9