Form W-4: Employee's Withholding Certificate

Form W-4 is used by employees to provide information to an employer so the appropriate amount of federal income tax can be withheld from pay.

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Introduction

Form W-4, Employee’s Withholding Certificate, is used by employees to provide their employer with information needed to determine federal income tax withholding from wages. Employees generally complete the form when they begin a new job and may submit an updated form when their personal or financial circumstances change.

The information on Form W-4 helps an employer calculate federal income tax withholding from an employee’s paycheck. Completing the form accurately can help an employee have an appropriate amount of federal income tax withheld throughout the year.

What Is Form W-4?

Form W-4 is an employee withholding form used to provide information about filing status, multiple jobs, dependents, and other applicable adjustments that may affect federal income tax withholding. The form is used by employers when determining the amount of federal income tax to withhold from an employee’s wages.

Form W-4 is not an income tax return and is generally not filed with the employee’s federal income tax return. Instead, the completed form is generally provided to the employer and used for payroll and withholding purposes.

Who Uses Form W-4?

Form W-4 is generally used by employees who receive wages from an employer and are subject to federal income tax withholding. New employees generally complete a Form W-4 when starting employment.

An employee may also choose or need to submit a new Form W-4 when circumstances change. Changes involving filing status, dependents, additional income, deductions, or desired withholding may affect whether an updated form is appropriate.

What Information Is Needed?

The information needed to complete Form W-4 generally includes the employee’s personal information and filing status. Depending on the employee’s situation, additional information about multiple jobs, a spouse’s income, dependents, other income, deductions, or additional withholding may be needed.

Employees should have basic personal and tax information available when completing the form. The appropriate entries depend on the employee’s circumstances and the amount of federal income tax the employee wants withheld from pay.

How to Fill Out/Complete Form W-4

Completing Form W-4 generally involves providing personal information, selecting an applicable filing status, and completing additional steps when they apply. Employees should complete the portions that apply to their individual circumstances.

The form should be reviewed whenever an employee’s circumstances change significantly or when the employee wants to adjust federal income tax withholding. Employees should keep their withholding information current and provide an updated form to their employer when appropriate.

Section 1

Begin by entering the employee’s personal information requested on Form W-4. This generally includes the employee’s name, address, Social Security number, and applicable filing status.

Review the information carefully before continuing. Accurate personal information helps the employer properly associate the withholding certificate with the employee’s payroll records.

Section 2

Complete the portion related to multiple jobs or a working spouse when it applies. This section is generally relevant when an employee has more than one job or when a spouse also works.

Employees should consider the applicable instructions and their overall household employment situation when completing this section. Not every employee will need to complete this portion of Form W-4.

Section 3

Enter information about qualifying dependents when applicable. This section may affect the amount of federal income tax withheld from the employee’s wages based on the employee’s circumstances.

Employees should use accurate information when completing this section. The information should generally reflect the employee’s current tax situation and applicable dependents.

Section 4

Enter information about other income, deductions, or additional withholding when applicable. This section provides an opportunity to account for circumstances that may affect the amount of federal income tax that should be withheld.

Employees do not necessarily need to complete every part of this section. The applicable entries depend on the employee’s individual circumstances and desired withholding.

Section 5

Sign and date Form W-4 as required. The signature confirms that the information provided on the withholding certificate is being submitted by the employee.

Review the entire form before signing it. Make sure all applicable information is accurate and that the completed form is provided to the appropriate employer or payroll department.

Final Review

Review Form W-4 after all applicable information has been entered. Check personal information, filing status, multiple-job information, dependent information, other income, deductions, and additional withholding.

A final review can help prevent incorrect withholding caused by simple entry errors. Employees should also consider reviewing their withholding when their employment, income, household, or tax circumstances change.

Common Mistakes

Common mistakes with Form W-4 may include selecting an incorrect filing status, overlooking a second job or working spouse, entering incorrect dependent information, or failing to account for other income or deductions when applicable.

Another common mistake is failing to update Form W-4 after a significant change in circumstances. Employees should periodically consider whether their withholding remains appropriate and submit an updated form to their employer when necessary.

Related IRS Forms

Form W-4 is commonly associated with Form W-2, which reports wages and certain tax withholding after the end of the year. Information from Form W-4 affects withholding during the year, while Form W-2 generally provides information used when preparing the employee’s federal income tax return.

Form 1040 and other federal tax forms may also be related to the information provided on Form W-4. The specific forms required when filing a tax return depend on the taxpayer’s individual circumstances.

Where to File or Submit

Form W-4 is generally provided to the employee’s employer rather than submitted with the employee’s federal income tax return. Employers use the information to determine federal income tax withholding from the employee’s wages.

Employees should follow their employer’s payroll procedures for submitting or updating Form W-4. A copy of the completed form should generally be retained with the employee’s personal tax and employment records.

Current IRS Form & Instructions

Tax forms and instructions may change over time. Employees should use the version of Form W-4 that applies to their employment and the applicable tax year.

The information on this page is intentionally general so it can remain useful across multiple tax years. Before completing Form W-4, employees should review the applicable version of the form and its instructions because withholding rules, form requirements, and other tax information may change.

Important Information / Disclaimer

This page is provided for general informational and educational purposes and offers a basic overview of Form W-4. It is not intended to provide individualized tax, legal, accounting, payroll, or financial advice and should not be considered a substitute for professional guidance.

Federal tax laws, withholding rules, forms, instructions, payroll requirements, and other tax procedures may change over time. Information that applies to one employee or tax year may not apply to another, so employees should consider their individual circumstances and seek assistance from a qualified tax professional when appropriate.