Get the latest W-4 form from the IRS or your employer
Fill in your personal information
Enter your Social Security number
Select your filing status
If you have multiple jobs, use the IRS Multiple Jobs Worksheet or the estimator
If your spouse works, account for both incomes
Claim dependents if eligible
Add other income if needed
Add deductions if you expect to itemize
Enter any extra withholding if you want more tax taken out
Sign and date the form
Give the completed form to your employer