What Should I Claim on My W-4 to Get Withholding Right?

What you claim on a W-4 is no longer a number of allowances — it’s your filing status, a dollar amount for the dependents and credits you expect to take, and optional adjustments for other income, deductions, or a second job. Get those entries right and your paycheck withholding will land close to what you actually owe when you file. Get them wrong and you’ll either write a check in April or wait all year for a refund of money that was yours to begin with.

Start With Your Filing Status

Step 1 of the form asks for your name, address, Social Security number, and filing status. The status you pick drives the standard deduction and tax brackets your employer uses, so this single choice matters more than any dollar entry further down the form.

You have three options:

Single or Married Filing Separately — unmarried, or married and filing your own return.
Married Filing Jointly or Qualifying Surviving Spouse — one combined return with a spouse, or a surviving spouse within two years of a spouse’s death who has a dependent child.
Head of Household — unmarried (or considered unmarried) and paying more than half the yearly cost of a home for a qualifying person, such as a child or dependent parent.¹

Your name and Social Security number have to match Social Security Administration records, or your eventual refund can get held up. If you recently married or divorced and haven’t updated the SSA yet, use the name still on your card.²

Claiming Dependents and Credits (Step 3)

This is where most people are really asking what to “claim.” Step 3 lowers the tax withheld from each paycheck to reflect credits you’ll take at filing. It only applies if your total income is $200,000 or less, or $400,000 or less if you’re filing jointly. Above those thresholds, leave Step 3 blank — the credit phases out and claiming it here will cause under-withholding.

Within the income limits, do the math this way:³

Qualifying children under 17: number of children × $2,200.
Other dependents (a child 17 or older, an aging parent, etc.): number × $500.

Add the two figures and enter the sum on line 3. You can add other credits you expect to claim, such as education credits or the foreign tax credit, into the same total.

Second Jobs and a Working Spouse (Step 2)

If you have more than one job, or you’re married filing jointly and your spouse also works, Step 2 keeps you from being under-withheld. Each employer, left on its own, withholds as though its paycheck is your only income. Two paychecks handled that way almost always add up to too little tax.

You have three ways to correct it:

The IRS Tax Withholding Estimator at irs.gov/W4App is the most accurate, especially if there’s self-employment income, dividends, or capital gains in the picture. It can also roll the extra withholding into a single dollar figure on Step 3 so you don’t have to disclose a spouse’s income to your employer.⁴⁵
The Multiple Jobs Worksheet on page 3 of the form uses salary tables to produce an extra withholding amount, which you enter on line 4(c).³
The checkbox in Step 2(c) works if the household has exactly two jobs paying roughly the same. It halves the standard deduction and brackets between the two jobs. Accuracy suffers when one job pays much more than the other.

Watch the underpayment threshold. If withholding falls too far short, the IRS charges a penalty with interest (7% as of early 2026). You avoid it if any one of these is true: you owe under $1,000 after withholding and credits; your withholding and credits cover at least 90% of this year’s tax; or they cover at least 100% of last year’s tax.⁶

Other Income, Deductions, and Extra Withholding (Step 4)

Step 4 has three optional lines for people whose picture doesn’t fit neatly into wages and dependents.

Line 4(a) is for annual income that comes with no withholding of its own: interest, dividends, retirement distributions, capital gains. Enter the expected yearly total and your employer will spread extra tax across your paychecks. Don’t put wages or self-employment income here.³

Line 4(b) is for people who will itemize and whose itemized deductions beat the standard deduction. The 2026 standard deduction is $16,100 for single or married filing separately, $32,200 for married filing jointly, and $24,150 for head of household.⁷ The Deductions Worksheet on page 3 walks through the math. If your deductions don’t beat the standard deduction, leave the line blank.

Line 4(c) is a flat extra dollar amount per paycheck. Use it if you have self-employment income on the side, owe from a prior year, or simply want a bigger refund. The Multiple Jobs Worksheet result from Step 2 also lands here.

Can You Claim Exempt?

Claiming exempt means zero federal income tax comes out of your check. You only qualify if both of these are true:³

You had no federal income tax liability for 2025 (line 24 of your 2025 Form 1040 was zero, or you didn’t have to file).
You expect no federal income tax liability for 2026.

If you qualify, fill out Steps 1(a) and 1(b), write “Exempt” in the space below Step 4(c), and sign. Skip Steps 2, 3, and 4. Exempt status doesn’t carry over year to year — you have to submit a new W-4 by February 16, 2027, or your employer will start withholding at the default single rate. The claim fits students, part-time workers, and retirees whose income sits below the filing threshold.

What If You Don’t Turn One In

Skipping the W-4 doesn’t make you exempt. If a new employee doesn’t submit one, the employer must withhold as if the worker is single with nothing entered on Steps 2, 3, or 4.⁸ For anyone married or with dependents, that default pulls more tax than needed. You get it back at refund time, but the money sits with the Treasury in the meantime.

When to Redo Your W-4

A W-4 stays in effect until you replace it. These are the changes that usually call for a new one:

Marriage or divorce — filing status, deduction, and brackets all shift. Update your name with the SSA too.⁹
Birth or adoption — a new qualifying child adds up to $2,200 on Step 3.
Buying a home — mortgage interest may push itemized deductions above the standard deduction, which belongs on line 4(b).
Second job or side business — new income means Step 2, extra withholding on 4(c), or both.
Big income change — a raise, layoff, or large investment gain can move you into a different bracket.

If a change reduces the withholding you can rightfully claim (say, a child aged out of the credit), the IRS requires a new W-4 within 10 days.¹⁰ Changes that increase your withholding have no deadline, but the sooner you file the update, the sooner more of each paycheck reaches you.

Penalties and Lock-In Letters

Deliberately putting false information on a W-4 to shrink your withholding carries a civil penalty of $500 per false statement, on top of any criminal charges the IRS may pursue. The IRS can waive it if credits and estimated payments end up covering your full tax, but a waiver isn’t automatic.¹¹

The agency also runs a withholding compliance program. If it decides your withholding is too low, it sends your employer a “lock-in letter” setting a minimum. After that, your employer must disregard any new W-4 you submit that would drop your withholding below the locked-in level. Getting the lock-in lifted takes contacting the IRS directly and showing higher withholding is no longer needed. You can still file a new W-4 that raises withholding above the lock-in amount.¹²

The W-4 Only Covers Federal Tax

The federal W-4 has nothing to do with state income tax. Most states with an income tax use their own withholding form rather than accepting the federal one. Nine states have no personal income tax at all, so no state form is needed. Check with payroll to find out what your state requires.

1
Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Head of Household
2
Internal Revenue Service. Name Changes and Social Security Number Matching Issues
3
Internal Revenue Service. Form W-4 (2026) Employee’s Withholding Certificate
4
Internal Revenue Service. Tax Withholding Estimator
5
Internal Revenue Service. Tax Withholding Estimator FAQs
6
Internal Revenue Service. Estimated Taxes
7
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
8
Internal Revenue Service. Topic No. 753, Form W-4, Employees Withholding Certificate
9
Internal Revenue Service. Essential Tax Tips for Marriage Status Changes
10
Internal Revenue Service. Publication 505 (2025), Tax Withholding and Estimated Tax
11
Office of the Law Revision Counsel. 26 U.S. Code 6682 – False Information With Respect to Withholding
12
Internal Revenue Service. Withholding Compliance Questions and Answers