They must be completed by an office in your workplace. (Employee handbook; Department of Labor) If you are a US/Canada Citizen, you must mail in an Income Tax Return Form W2G10, or a Form 5471, U.S. Corporation Return Form 2063 to our address: U.S. Department of Treasury Internal Revenue Service Washington, D.C. 20 If you are a United States Citizen or resident alien who is a member of any United States Government agencies or a foreign person or any other foreign person who maintains an office, employee, or agent in the United States, you must mail in the W-2G10 in order to obtain a permit for service of Tax. When a U.S. Citizen or resident alien is filing an Individual Income Tax Return and there is no employer who is required to submit this tax return form and information at the same time, you may use Form W2G10, Personal Income Tax Return, for the filing. Income Tax Return form and information are required if a Taxpayer has a job outside the United States. Form W-2G 10 is not required for the same U.S. resident Taxpayer. Form W-2G20, U.S. Employer's Tax Return Form 1040, and related statements. (PDF) IRS Forms for Individuals and For Employers : 1. Form 1040A. (PDF) 2. Form 1040EZ. (PDF) 3. Form W-2 (PDF) 4. Form W2G-EZ. (PDF) 5. Form W2 (PDF) 6. Form W-2G (PDF) 7. Form W2W (PDF) 8. Form W2W (PDF) For Individuals: 1. Form 1040-EZ-EZ. (PDF) 2. Form 1040-EZ. (PDF) 3. Form W-2(PDF) You may also use Form 1040-EZ. See instructions on form.