Am I required to have an SSN or ITIN (a U.S. Tax Identification Number) to file my tax return?

Any individual who works in the U.S. as an employee is required to apply for an SSN; if an individual does not work as an employee, he or she cannot apply for an SSN. Any individual who receives income from U.S. sources must file a tax return and everyone who is required to file a tax return must have either an SSN or ITIN. Individuals who complete a tax return in GTP and do not have an SSN or ITIN will be prompted to complete Form W-7 to apply for an ITIN in connection with the filing of the tax return