Enter your full legal name
Enter your current mailing address
Enter your Social Security number
Check the box for Single or Married filing separately
Complete Step 2 only if you have multiple jobs or your spouse also works
Complete Step 3 only if you have dependents
Complete Step 4 only if you want extra adjustments for other income, deductions, or extra withholding
Sign and date the form
Give the completed W-4 to your employer