I entered an amount in the federal tax additional withholding amount block. How much money will actually be deducted from my pay each payday?
Civilians: The amount that will be deducted each pay period will be the additional amount entered in addition to the tax withholding based on your current filing status (marital status and exemptions). All Other Employees/Members except for Former Spouse and Cadets/Midshipmen: The amount you enter will be deducted each month, (one-half each payday if you have two paydays per month) in addition to the tax withholding based on your current filing status (marital status and exemptions).