Use your legal name and current mailing address
Enter your Social Security number
Check the box for Single if you are unmarried and want withholding based on single status
If you have multiple jobs or a working spouse, use the Multiple Jobs Worksheet or the IRS Tax Withholding Estimator
If you have dependents, complete Step 3 and enter the qualifying amount
If you have other income not subject to withholding, enter it in Step 4(a) if needed
If you want extra tax withheld from each paycheck, enter the amount in Step 4(c)
Sign and date the form
Give the completed W-4 to your employer