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The W-4, without the headache

It sets how much federal tax comes out of each paycheck.

5 min read

Your W-4 tells your employer how much federal income tax to withhold. Too little can mean a bill at tax time; too much means a smaller paycheck all year and a bigger refund.

The basics

  • You fill it in when you start a job and can change it any time
  • Single filers with one job can often complete just the basic steps
  • Extra jobs, a working spouse, dependents and other income change the math
  • The IRS Tax Withholding Estimator on IRS.gov helps you check it

When to review it

After a new job, a second job, marriage, a baby, or if last year's refund or bill was bigger than you expected.

General information, not tax advice. Cents and Common Sense isn't paid by any bank, lender or card company.