W-4 form

What It Means

Form W-4, the Employee's Withholding Certificate, is the IRS form you fill out for your employer so it withholds the right amount of federal income tax from your pay. You complete it when you start a job and can file a new one whenever your situation changes. It covers federal income tax only; Social Security and Medicare are taken out at fixed rates whatever the form says.

How People Say It

• "I updated my W-4 after the baby was born."
• "HR wants a new W-4 from everyone this year."
• "I owed last April, so I'm having extra taken out."

The Breakdown

The five steps on the 2026 form

1. Personal information, including your filing statusFiling statusThe category you file your federal return under, one of five the IRS sets, which decides your tax rates and standard deduction and depends on your marital status at year end. See more.
2. Multiple jobs or spouse works: fill this in if you hold more than one job at a time, or you're married filing jointly and your spouse also works.
3. Claim dependents: works out the child tax creditChild tax creditA federal tax credit of up to $2,200 per qualifying child under 17 on 2025 returns, partly refundable, with the full amount at incomes up to $200,000 ($400,000 joint). See more and the credit for other dependents you expect to claim.
4. Other adjustments: Step 4(b) uses a Deductions Worksheet, and Step 4(c) is any extra tax you want withheld each pay period.
5. Sign and date it, then give it to your employer.

Worked example. Jordan used the IRS Tax Withholding Estimator in September and found he's on track to owe $1,200 next April (example numbers). He's paid every two weeks with 12 paychecks left.

What the result means. Each check is $100 smaller, and the $1,200 he would have owed is paid as he goes. Buhata's suggestion: file a fresh W-4 in January with a full-year figure, since leaving $100 on all 26 paychecks of a new year would withhold $2,600.

Good to Know

The 2026 Form W-4 was updated for the new deductions under the July 2025 law (P.L. 119-21), according to the IRS's 2026 employer guidance in Publications 15 and 15-T, and it adds a checkbox below Step 4(c) for claiming exemption from withholding. Under the same guidance, an exemption lasts only for the calendar year, so you need to give your employer a new W-4 by February 15 to stay exempt. The IRS suggests running its Tax Withholding Estimator with your most recent pay stubs, then again early the next year. Ask a tax professional if you're unsure what to put in Steps 2 to 4.

Related Terms and Categories

• Take-home pay

  The money that actually reaches you from a paycheck after taxes and other deductions are taken out, also called net pay or net income.

• Filing status

  The category you file your federal return under, one of five the IRS sets, which decides your tax rates and standard deduction and depends on your marital status at year end.

• Child tax credit

  A federal tax credit of up to $2,200 per qualifying child under 17 on 2025 returns, partly refundable, with the full amount at incomes up to $200,000 ($400,000 joint).

• Gross income

  The full amount you earn before taxes and other deductions come out. For federal taxes, it's all income you receive unless a law exempts it.

• Standard deduction

  A fixed dollar amount the IRS lets you subtract from income before tax, set by filing status and adjusted yearly; for 2026 it's $16,100 single and $32,200 joint.

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