W-4 Withholding Calculator 2026

How federal tax withholding works

Every payday, your employer holds back a slice of your paycheck for federal income tax and sends it to the IRS on your behalf. That amount is your withholding. At tax time, the IRS compares the total withheld during the year to the tax you actually owe. Withhold too little and you get a bill; withhold too much and you get a refund — which is really just your own money returned without interest.

The goal of a well-filled Form W-4 is to land close to break-even: enough withheld to cover your tax, but not so much that you hand the government an interest-free loan all year. Your employer figures the exact amount using the IRS Publication 15-T percentage-method tables and the entries on your W-4. This calculator runs those same 2026 Pub 15-T tables, so the figure you see matches what payroll will actually withhold.

“How many allowances should I claim?” — allowances no longer exist

If you last filled out a W-4 before 2020, you claimed a number of allowances. That system is gone. The IRS redesigned Form W-4 in 2020 to remove allowances entirely, because they were confusing and tied to the old personal-exemption rules that the 2017 tax law repealed.

Today’s W-4 asks for dollar amounts and simple checkboxes instead. Rather than “claim 2 allowances,” you now enter your dependents as a dollar figure on Step 3 and any extra withholding on Step 4(c). If a form or article still tells you to count allowances, it is out of date. This calculator gives you the exact modern entries.

The five steps of Form W-4, explained

Here is what each part of the current W-4 does and how to complete it for 2026:

Step 1 — Personal information & filing status

Enter your name, address, Social Security number, and filing status: single (or married filing separately), married filing jointly, or head of household. Your filing status sets your standard deduction and tax brackets, so it drives everything else.

Step 2 — Multiple jobs or a working spouse

This is the step most people miss — and the number-one reason people unexpectedly owe. If you hold more than one job, or you’re married filing jointly and your spouse also works, complete Step 2. The simplest accurate option: if the two jobs pay roughly the same, check the box in Step 2(c) on the W-4 for both jobs. Otherwise, use the calculator to get the extra amount for Step 4(c) on the higher-paying job.

Step 3 — Claim dependents

Multiply your qualifying children under age 17 by $2,200 (the 2026 Child Tax Credit) and other dependents by $500 (the Credit for Other Dependents), then enter the total. The W-4 instructions say to claim these only if your total income is under $200,000 (single) or $400,000 (married filing jointly).

Step 4 — Other adjustments (optional)

• 4(a) Other income: non-wage income such as interest, dividends, or gig work with no withholding.
• 4(b) Deductions: deductions beyond the standard deduction, if you itemize.
• 4(c) Extra withholding: a flat dollar amount to withhold from each paycheck. This is the lever the calculator uses to fine-tune you to break-even.

Step 5 — Sign and date

The form isn’t valid until you sign it. Give the completed W-4 to your employer, not the IRS.

2026 standard deduction & tax brackets

Your employer’s withholding is built on the 2026 standard deduction and federal brackets. The standard deduction — the income taxed at 0% — is:

The seven federal tax brackets for a single filer in 2026:

Remember that these are marginal rates: each rate applies only to the income inside that band, not to your whole salary. Being “in the 22% bracket” never means 22% of everything.

Worked examples for 2026

Single filer, $60,000 salary, no dependents

Standard deduction $16,100 → taxable income $43,900. Tax = 10% of the first $12,400 ($1,240) + 12% of the next $31,500 ($3,780) = $5,020. A default W-4 (Step 2 box unchecked, no dependents) withholds exactly $5,020 — so this filer breaks even with no changes.

Married filing jointly, $120,000 salary, 2 children

Standard deduction $32,200 → taxable income $87,800. Tax = $10,040, then subtract the Child Tax Credit of 2 × $2,200 = $4,400, leaving a tax bill of $5,640. The fix: enter $4,400 on Step 3 of the W-4. That lowers annual withholding from $10,040 to $5,640 — a match. Skip Step 3 and you’d over-withhold by $4,400 and get it back as a refund.

Head of household, $50,000 salary, 1 child

Standard deduction $24,150 → taxable income $25,850. Tax = $2,748, minus a $2,200 Child Tax Credit = $548. Entering $2,200 on Step 3 brings withholding down to match, so this parent keeps more in every paycheck instead of waiting for a refund.

Sources & disclaimer

Federal figures on this page are drawn from official IRS publications for tax year 2026: Publication 15-T (Federal Income Tax Withholding Methods), the 2026 federal tax brackets and standard deduction, and the Child Tax Credit / Credit for Other Dependents. This page was last updated 2026-07-01.

This calculator provides estimates for educational purposes and is not tax advice. Your actual withholding and tax depend on details specific to your situation. Verify the results against your pay stub and the official IRS Tax Withholding Estimator, and consult a qualified tax professional before submitting your W-4.

Life events that mean you should update your W-4

Your W-4 isn’t “set and forget.” Any change that affects your tax is a signal to file a fresh one with your employer. The biggest triggers:

• You got married. Switch to “Married filing jointly.” If your spouse also works, complete Step 2 — otherwise the two jobs together will under-withhold.
• You had (or adopted) a baby. Add the child to Step 3. Each qualifying child under 17 is worth $2,200, which lowers your withholding and raises your take-home pay right away — you don’t have to wait until you file.
• You (or your spouse) started a second job. This is the most common reason people suddenly owe. Jump to the multiple-jobs section below.
• You bought a house. Mortgage interest and property tax may push you past the standard deduction. Estimate the extra and enter it on Step 4(b) to withhold a bit less.
• A big raise, bonus, or side income. More income can move you into a higher bracket or add untaxed earnings — enter it on Step 4(a) or add Step 4(c) extra withholding.

Two jobs or a working spouse: the #1 cause of a surprise tax bill

When you have one job, your employer’s withholding assumes that salary is your only income and gives you the full standard deduction and the lowest brackets. Add a second job — or a working spouse on a joint return — and each employer makes that same assumption. The result: your combined income is taxed in higher brackets than either paycheck withholds for, and you owe at tax time.

There are two accurate fixes, both built into this calculator:

• Check the box in Step 2(c) on the W-4 for both jobs. This is the simplest option and works best when the two jobs pay roughly the same. Each employer then withholds at the higher combined rate.
• Add extra withholding on Step 4(c) of the higher-paying job. Use this when the jobs pay very differently. Enter both jobs above and the calculator gives you the exact per-paycheck amount.

Dependents and the Child Tax Credit

Step 3 is where dependents cut your withholding. Because it’s a credit (a dollar-for- dollar reduction of tax), every $2,200 you enter for a child lowers the tax withheld across the year by the same $2,200. Miss it, and you simply over-withhold and wait for the money back as a refund. Enter your children and other dependents above to see the exact Step 3 figure — and how much more take-home pay it unlocks each payday.

Refund vs. owe: which should you aim for?

A giant refund feels great, but it means you lent the government your money interest-free all year. Owing a little is fine; owing a lot can bring underpayment penalties. The sweet spot for most people is break-even — withhold just enough to cover your tax. If you prefer a cushion, set a target refund above and the calculator sizes your Step 4(c) accordingly.

Whatever you choose, the fix always comes down to the same three levers: your Step 3 dependent amount, your Step 4(b) deductions, and your Step 4(c) extra withholding. This tool tells you exactly what to put on each line.

State income tax withholding: what to know

Federal withholding is only half the picture. Most states run their own income tax with a separate withholding form — and getting that wrong is just as likely to leave you owing. Here’s how the states break down for 2026:

States with no income tax withholding

Nine states don’t tax wage income at all, so no state income tax is withheld from your paycheck there: Alaska, Florida, New Hampshire, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming. If you work in one of these, you only manage your federal W-4.

Flat-rate states

13 states apply a single flat rate to taxable income (for example, Pennsylvania at 3.07% and Illinois at 4.95%). Withholding is simple: the same percentage on every dollar, sometimes after a standard deduction or personal exemption.

Graduated-rate states

29 states plus the District of Columbia use graduated brackets, like the federal system — California, New York, and Minnesota among them. Higher income is taxed at higher rates, so withholding rises with pay.

State vs. federal: two separate calculations

Your federal and state withholding are computed independently and use different forms. Federal withholding follows IRS Publication 15-T and your Form W-4. State withholding follows your state’s own rate schedule and its own certificate — California’s DE 4, New York’s IT-2104, Georgia’s G-4, and so on. A few points that trip people up:

• Some states start from your federal figures (AGI or taxable income); others use their own rules entirely.
• Many cities and counties add a local income tax on top of the state rate (e.g. New York City, most of Ohio, Maryland counties) that isn’t part of the state figure.
• Fixing your federal W-4 does nothing for your state withholding, and vice-versa — you need to check both.

Select your state in the calculator above to estimate your state withholding, see which form to file, and get your exact federal W-4 entries at the same time. For a full state guide, open your state’s dedicated page.