Step 1: Jot down the personal details. This is where you need to write your full name, tax filing status, address, and Social Security number.Complete Form W4 so that your employer can withhold the correct federal income tax from your pay. Consider completing a new Form W-4 each year. Learn how to fill out a W4 form with this updated indepth guide for 2025. Generally, you must file the petition within 30 days of when you receive the final decision from Step 4. 515, Withholding of Tax on. Nonresident Aliens and Foreign Corporations. Learn how to retire online, how your supplemental retirement account can help in retirement and sign up for a retirement planning conference. Vacancies shall be filled in the same manner as the original appointment for the balance of the unexpired term.