A step-by-step guide to help you fill out a W-4 Fact checked by Vikki Velasquez IRS Form W-4 dictates how much money is withheld from your gross pay for taxes. Step 1 requires you to input personal ...
The W-4 form determines how much federal income tax your employer withholds from every paycheck. It does not change how much tax you owe for the year. It changes when you pay that tax. Fill it out one ...