How to Fill Out a W4: Employer's Guide for 2026

Every new hire means another W4 to process. The 2026 form has major changes from the One Big Beautiful Bill Act. Getting withholding right affects payroll accuracy and take-home pay. This guide shows how to fill out a W4 from the employer's side. You will learn what your team fills in and what you handle. We cover every step, common mistakes, and a W4 form example filled out for reference. Once withholding is set, a reliable pay stub generator makes it easy to document each paycheck.

Key Takeaways

• The 2026 W-4 form has an expanded Deductions Worksheet and a higher Child Tax Credit of $2,200 per qualifying child.
• Employees complete Steps 1 through 5; employers fill in their Employer Identification Number.
• Only one spouse should claim dependents in Step 3 when filing jointly.
• Keep all W4 forms on file for at least 4 years after the tax due date.

What Is a W4?

What is a W4? It is an IRS tax form called the Employee's Withholding Certificate. You may also see it written as W-4 or W 4. This tax form W4 tells your employer how much federal income tax withheld from each paycheck should be. Every new hire fills one out. They can update it anytime.

The IRS cut withholding allowances in 2020. What is an allowance on W4? Under the old system, each one cut taxable income by a set amount. The current W4 form uses a five-step process instead. It covers filing status, jobs, dependents, and deductions. If employees ask about "number of regular withholding allowances," that system no longer exists. Think of the W4 as input for payroll. The W-2 form is the output at year-end. What is the W-4 form used for? It sets federal tax withholding only.

What Changed on the 2026 W-4 Form

The One Big Beautiful Bill Act brought major updates to the 2026 W-4:

• Child Tax Credit rose to $2,200 per qualifying child under 17 (up from $2,000).
• Deductions Worksheet grew from 5 lines to 15, adding entries for qualified tips, overtime, and loan interest.
• Step 3 now splits into 3(a) for qualifying children and 3(b) for other dependents.
• A new exempt from withholding checkbox replaces the old "write Exempt" method.
• 2026 standard deductions: $32,200 (MFJ), $16,100 (Single/MFS), $24,150 (HoH).

The IRS Tax Withholding Estimator may not yet show these changes. Point employees to the deductions worksheet on page 3 for best results. The new W-4 form explained above applies to all 2026 pay periods. The new W4 form now also covers itemized deductions beyond the standard deduction. The new W 4 form uses the same five-step layout.

How to Fill Out a W4 Step by Step

Here is how to complete W4 entries for each step. These form W4 instructions cover the full process. You can also review the form W-4 instructions on the IRS site.

Step 1: Personal Information

The employee fills in their name, address, and Social Security number. They pick a filing status: Single, Married Filing Jointly, or Head of Household. Check that the Social Security number matches payroll records before the first pay period.

Step 2: Jobs and Spouse Income

This step applies when an employee has more than one job. The section is called "multiple jobs or spouse works" on the form. There are three options:

1. The IRS Tax Withholding Estimator at irs.gov gives the most accurate result.
2. The W4 multiple jobs worksheet on page 3 works best for three or more jobs.
3. The W4 step 2c checkbox is quick, but only accurate when two jobs pay about the same.

The IRS multiple jobs worksheet helps figure the extra withholding needed. Both spouses fill out W4 step 2 on their own forms. Put Steps 3 and 4 only on the W4 for the highest paying job. The W-4 multiple jobs worksheet is on page 3 of the form. It is the same as the multiple job worksheet listed under Step 2. You can find the multiple jobs worksheet W4 provides right after the main form page.

Step 3: Dependents

W4 step 3 is where employees enter dependent credits. Here is how to claim dependents on W4. Multiply qualifying children under 17 by $2,200 in line 3(a). Then multiply the number of other dependents by $500 in line 3(b). The W4 dependent amount goes on the total line. This total credits for dependents W4 value cuts the federal income tax taken each pay period.

The dependent amount on W4 matters for every paycheck. For married couples where both work, only one spouse should claim dependents and other credits. If both claim them, it doubles the credit and leads to owing tax at year-end. To learn how to fill out step 3 on W4, enter children first, then other dependents, then add them up. The W-4 step 3 amount flows into payroll math. The W 4 step 3 entry stays blank if the employee has no dependents.

Step 4: Other Adjustments

• 4(a) Other income: Non-job income like interest, dividends, or self-employment income goes here.
• 4(b) Deductions: Employees who expect to exceed the standard deduction use the step 4b deductions worksheet. This section now has 15 lines for tips, overtime, and loan interest.

The W4 deductions worksheet covers all entries for Step 4(b). You will find it on W4 page 3. W4 step 4b entries reduce the amount of tax taken from each check.

• 4(c) Extra withholding: A flat dollar amount taken each pay period for a bigger tax refund. The extra withholding on W4 meaning is added tax per check. Federal 2c/extra withholding rules apply here.

The W4 worksheet on page 3 has both the jobs table and the deductions section. The deduction worksheet W4 provides covers both jobs and credits. The deductions worksheet W4 entries tie directly to your payroll system. Knowing how payroll deductions work helps verify W4 choices on each pay stub.

Step 5: Sign and Date

The signature makes the form valid. An unsigned W4 cannot be used. Withhold at the default single rate until a signed copy arrives.

Claiming Exemption

Here is how to file exempt on W4 example: check the new 2026 checkbox below Step 4(c) and sign. The employee must have owed zero tax last year and expect zero this year. A W-4 exempt example shows Steps 2 through 4 left blank with the exempt box checked. Exemptions expire February 15 of the next year. Collect a new W4 each year from exempt workers. Learn more about what exempt employee means in the payroll context.

How to Fill Out a W4 for Common Situations

Below are the most common scenarios your team will face. Each one explains how to fill out a W4 for that case. These tips explain how to correctly fill out a W4.

Single Filer, One Job

This is the simplest setup on the form. Complete Steps 1 and 5 only. Skip Steps 2 through 4 and standard withholding will apply. This is how to fill out W4 single no dependents. The filing status in Step 1 handles the rest.

If you need to know how to fill out a W4 form for a single person, that two-step process is all it takes. The filing status in Step 1 handles the rest.

Married Couples Filing Jointly

Both spouses need to fill out a W-4 when they start a job. Here is how to fill out W4 married filing jointly. Both check the Step 2(c) box if their jobs pay about the same. For different incomes, use the worksheet. Only one W4 should include dependents in Step 3.

Wondering how to fill out W4 married filing jointly no dependents? Skip Step 3 and fill Steps 1, 2, and 5 only. The withholding tables handle the rest. How should I fill out my W4 if married? Start with Step 2 and claim credits on just one form.

Married, Both Spouses Working

This is the most common question from couples. How to fill out W4 if married and both work depends on income levels. If both jobs pay close to the same, check box 2(c) on each form. If not, use the W4 worksheet for more accurate results.

When married filing jointly who claims dependents on W4? The spouse with the higher income. Should both parents claim dependents on W4? No. Should both parents claim dependents on W4 if filing jointly? Never. Doubling credits causes tax bills at year-end. Do both spouses claim dependents on W4? Only one should.

Filing With Dependents

Here is how to fill out a W4 with dependents. The process takes just a few minutes. Adding dependents to W4 is straightforward math. Multiply each child under 17 by $2,200 for Step 3(a). Use $500 per person for other dependents in Step 3(b). The total dependent amount W4 shows is the sum of both lines. This figure reduces the tax taken from each paycheck. What does total dependent amount mean? It is the dollar credit that lowers withholding.

How to fill out W4 with 1 dependent: enter $2,200 in line 3(a) for a child, or $500 in line 3(b) for others. The math scales up for larger families. How to fill out W4 with 2 dependents: multiply by the right amount per child. Two qualifying children equal $4,400. How many dependents can you claim on W4? There is no cap. How many dependents should I claim on my W4? Claim all that qualify, but on one form only. The W-4 dependent amount is the same figure shown on the total line.

Employees With Two Jobs

Learning how to fill out a W4 with two jobs requires special attention to Step 2. How do I fill out my W4 with two jobs? Fill out Step 2 on every W4 you file. Only list dependents on the highest-paying job's form. The W 4 worksheet helps calculate the right amount.

How to fill out W4 with 2 jobs means using the worksheet for accuracy. Should I claim 0 or 1 if I have two jobs? That old system is gone. Use the worksheet instead.

First Job or Minor Employee

Knowing how to fill out a W4 matters for every age group, including teens starting their first job. What should a 16 year old claim on W4? Most teens fill in Steps 1 and 5 only. Should my 16 year old claim 0 or 1 on W4? The form has no allowances, so that choice does not apply.

How to claim 1 on W4 is not possible on the current form. Where do I claim 1 on my W4? Nowhere on the new version. How to claim 1 on W4 2024 or later does not apply either.

W4 Form Example

Not sure how to fill out a W4 in your situation? Here is a W4 example filled out for a single employee with one job.

• Step 1: Name, Social Security number, address, check "Single."
• Steps 2-4: Leave blank.
• Step 5: Sign and date.

What does a W4 look like? It is one page plus the W 4 worksheet pages attached. A W 4 form example looks the same on paper or screen.

For a W4 filled out example with dependents, add $2,200 per child in Step 3(a). The amounts carry forward into your payroll system each pay period. A W-4 form filled out example for married filers shows Step 2(c) checked and Step 3 on one form.

You can find a W-4 example filled out on the IRS site. Use any W4 template as a guide. A sample W4 filled out can help you spot errors before processing. Review each step to make sure nothing is blank by mistake. An example of W4 filled out is also called an example of W4 form filled out when the full form is shown. The W4 sample on the IRS site covers all five steps.

Looking for a 2023 W-4 form example filled out? The older version follows the same five-step layout as the current form. A 2024 W-4 form example filled out also uses the same structure.

W4 Allowances: Old vs. New System

Many still ask about number of allowances on W4. How many allowances should I claim married with 2 kid? That system ended in 2020. What are regular withholding allowances? They were credits that cut withholding per paycheck.

The old single 0 vs single 1 choice no longer exists. Number of allowances from the estimated deductions worksheet b was part of the old process. The new W4 form uses dollars, not allowances.

Do I claim myself as a dependent on W4? No. How to claim yourself on W4 is not part of the current form. What should my withholding be? It depends on filing status, income, and credits. The federal W4 instructions explain this change.

Employer Responsibilities

Completing the Employer Section

After the employee returns a signed W4, fill in four fields. Enter your business name and address. Add the start date. Last, enter your Employer Identification Number. The federal W4 form requires an EIN before you can run payroll. The federal W 4 form is the official IRS version employers must keep on file. The W4 employee withholding certificate is the same document under its formal name. This is a W4 for employees, not contractors.

Onboarding Process

Collect the W4 on or before day one. New employee forms W4 and I-9 should arrive together. Without a W4, withhold at the default single rate. Filling out a W4 takes under ten minutes.

Help staff fill out W4 online through your payroll system if you can. This is how to fill out employee withholding certificate forms the right way. The process applies to all new hires. The employee's withholding allowance certificate how to fill out steps are the same W4 steps above. For W-4 help, point staff to the IRS estimator.

To learn how to fill out new W4 entries, follow Steps 1 through 5. How to fill out the new W4 is the same each time. How to fill out tax withholding form updates follows the same process. For compliance, check state-specific pay stub requirements from day one.

Common Mistakes

• Dependents on W4 from both spouses: Doubles the credit and causes under-withholding.
• Not updating after life changes: Marriage, divorce, or a new child all change withholding.
• Ignoring Step 2: Creates big under-withholding at tax time.
• Missing W4 on day one: Triggers default single rate withholding.
• IRS lock-in letter: Override the employee's W4 with the IRS rate.

Avoid these to cut common payroll mistakes that cost time and money.

Record-Keeping

Keep all W4 forms for at least 4 years after the tax due date. Save both old and new copies when an employee updates. The W4 sheet, digital or paper, must be ready for audit. See how long to hold on to pay stubs for more.

When Should Employees Update Their W4?

Tell your team to update after any major life changes: marriage, divorce, new child, or new job. Send yearly reminders. You cannot force updates unless the IRS says so.

Changes in withholding can affect FICA taxes shown on pay stubs. Learn more about FICA tax and how it works. How to fill out a W4 again follows the same five steps. Claiming dependents on W4 may change with each life event. The W4 for married filing jointly may need a new Step 3 amount after having a child.

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Conclusion

Now you know how to fill out a W4 with the 2026 changes. Set up a process for new hires. Send yearly reminders. Keep every form on file for at least four years.

Need pay stubs that match withholding? Use our paystub generator to create pay documents in minutes.