How to Fill Out W-4 for Head of Household With 2 Dependents

To fill out a W-4 as head of household with two dependents, do two things and the form largely takes care of itself: check “Head of Household” in Step 1(c), and in Step 3 enter your dependent credit total. For 2026 that total is $4,400 if both dependents are qualifying children under 17, $2,700 if only one is (and the other is a qualifying relative or older child), or $1,000 if neither is under 17. Steps 2 and 4 come into play only if you have a second job, non-wage income, or deductions above the standard amount.

Step 1: Check Head of Household

In Step 1(c), check the “Head of Household” box. This signals your employer’s payroll system to withhold using the wider head of household brackets and the larger standard deduction built into those tables. For 2026, the head of household standard deduction is $24,150, compared with $16,100 for a single filer.¹ Picking the wrong status here, or skipping the form altogether, causes the biggest single withholding error people make: if you don’t submit a W-4, your employer withholds as if you’re single with no credits.²

You qualify as head of household if all three of these are true: you were unmarried on the last day of the year, you paid more than half the cost of keeping up your home, and a qualifying person lived with you for more than half the year. The qualifying person is usually your child, stepchild, or foster child, but certain other relatives you can claim as a dependent also count.³ A qualifying parent is the one exception to the live-with-you rule: you can still file as head of household if you pay more than half the cost of a parent’s separate home. Some married people who lived apart from a spouse for the last six months of the year can be treated as unmarried for this purpose.⁴

Fill in your name, address, and Social Security number in Step 1(a) and (b), then move to Step 3. Step 2 only matters if you have more than one income, so most single-job filers can skip past it for now.

Step 3: The Dependent Credit Math

Step 3 is where the two dependents actually cut your paycheck withholding. The form splits dependents into two lines with different dollar values for 2026.⁵

Both Dependents Are Qualifying Children Under 17

Multiply the number of qualifying children under age 17 by $2,200 and put the result on line 3(a). With two qualifying children, that’s $4,400. Leave line 3(b) at zero, and write $4,400 on the total line 3.

Note the exact age rule. The “under 17” cutoff on the W-4 tracks the Child Tax Credit, not dependency in general. A child who turns 17 during the tax year drops off line 3(a) even though you may still claim them as a dependent on your return.

One Under 17, One Older or a Qualifying Relative

Line 3(b) covers dependents who don’t qualify for the Child Tax Credit: children age 17 and older (up to age 18, or up to 23 if a full-time student), and qualifying relatives whose 2026 gross income is under $5,300. Each is worth $500.⁵

With one qualifying child under 17 and one older child or qualifying relative, enter $2,200 on line 3(a), $500 on line 3(b), and $2,700 on line 3. If neither dependent is under 17, put $0 on line 3(a), $1,000 on line 3(b), and $1,000 on line 3.

If Your Income Is Near $200,000

The Child Tax Credit begins to phase out once head of household adjusted gross income exceeds $200,000.⁶ If your income is near or above that line, entering the full $4,400 or $2,700 will leave you under-withheld. The IRS Tax Withholding Estimator at irs.gov/W4App can calculate a scaled figure for your actual income.⁷ Whatever number you land on gets entered on line 3 and is spread evenly across your remaining pay periods.

Step 2: Only If You Have More Than One Income

Skip Step 2 if you have one job and no other earned income. If you have a second job or self-employment income, complete it. Each employer withholds as if its wages are your only income, which stacks lower-bracket withholding on top of lower-bracket withholding. At tax time, the combined income actually crosses into higher brackets and you owe the shortfall.

The form offers three ways to handle this:⁵

The IRS Tax Withholding Estimator at irs.gov/W4App is the most accurate option and the one to use if any of your income is self-employment.
The Multiple Jobs Worksheet on page 3 of the W-4 produces a dollar figure that goes on line 4(c).
The checkbox in Step 2(c) is a rough shortcut for exactly two jobs where the lower-paying one earns more than half what the higher-paying one does. Check it on the W-4 for both jobs.

Step 4: Non-Wage Income, Extra Deductions, and Cushion

Most single-job filers taking the standard deduction can leave Step 4 blank. Three situations call for entries.⁵

Line 4(a): Other Income

Enter the annual total of income that isn’t itself subject to withholding, like interest, dividends, capital gains, or retirement distributions. Your employer will pull additional tax from each check to cover it. Don’t put second-job wages here; those belong in Step 2.

Line 4(b): Deductions Above the Standard

Use line 4(b) if your deductions will exceed the $24,150 head of household standard deduction already baked into the withholding tables. The Deductions Worksheet on the form walks through the math and includes several above-the-line deductions for 2026 that don’t require itemizing:⁸

Qualified tips, up to $25,000, if total income is under $150,000 and the occupation is one the IRS recognizes as customarily tipped.
The premium portion of overtime pay (the “half” in time-and-a-half), up to $12,500, if total income is under $150,000.
Interest on a loan for a personal-use vehicle assembled in the United States, up to $10,000, if total income is under $100,000 and the loan originated after December 31, 2024.

Student loan interest, deductible IRA contributions, and educator expenses also feed into this worksheet.

Line 4(c): Extra Withholding Per Paycheck

A flat dollar amount here gets added to every paycheck’s withholding. Two common uses: covering the shortfall from the Multiple Jobs Worksheet in Step 2, and voluntarily building a cushion.

Step 5: Sign, Submit, and Check Your Pay Stub

Sign and date the form. Without a signature it isn’t valid.⁵ Give it to your employer’s payroll or HR department; many employers accept electronic submissions through their payroll portal, as long as the employer can produce a hard copy if the IRS asks.⁹

Your employer has to apply the change no later than the first payroll period ending on or after the 30th day from when you submit it.⁵ Look at the next couple of pay stubs and confirm two things: the filing status shows head of household, and federal withholding dropped by roughly the credit amount divided by remaining pay periods. Payroll setup errors do happen, and catching one in February is much easier than finding it in April.

When to Redo the Form

A W-4 doesn’t expire, but the IRS suggests checking your withholding every year and after any life change.¹⁰ For a head of household filer with two dependents, the events that most often break the math:

A child turns 17. They move from line 3(a) to line 3(b), and your credit drops by $1,700 for that dependent. Skip the update and you’ll be under-withheld by that amount for the year.
A dependent ages out entirely (usually at 19, or 24 for a full-time student). You lose the $500, and if that was your only qualifying person, you may also lose head of household status.
You get married. Filing status changes, credit phase-outs change, and both W-4s in the household need attention.
Your income jumps. A raise, a side job, or a spike in investment income can push you past the $200,000 Child Tax Credit phase-out or into higher brackets.

When one of these hits, submit a fresh W-4 rather than trying to patch the old one with line 4(c) adjustments. The math is cleaner and the paystub is easier to verify.

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Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
2
Internal Revenue Service. FAQs on the 2020 Form W-4
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Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information
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Internal Revenue Service. Publication 504 (2025), Divorced or Separated Individuals
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Internal Revenue Service. Form W-4 (2026) Employee’s Withholding Certificate
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Internal Revenue Service. Child Tax Credit
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Internal Revenue Service. Tax Withholding Estimator
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Internal Revenue Service. One, Big, Beautiful Bill Provisions – Individuals and Workers
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Internal Revenue Service. Form W-4, Employees Withholding Certificate
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Internal Revenue Service. About Form W-4, Employee’s Withholding Certificate