What Is a W-3 Form?

Employers use Form W-3 to send the Social Security Administration (SSA) a summary of the wage and tax information reported on their Forms W-2. It totals the information across the W-2s in a filing, while each W-2 reports information for an individual employee. The W-3 is an employer filing document, not a form employees need to prepare their personal tax returns. Employers generally submit it with Copy A of the W-2s when filing on paper; electronic filing handles the transmittal information through the filing system. The figures on the W-3 should reconcile with the related W-2s, so reviewing the totals before filing helps identify payroll reporting errors.

How Does Form W-3 Differ from Form W-2?

Form W-3 is officially called the Transmittal of Wage and Tax Statements. It accompanies the employer’s W-2 reporting to the SSA and summarizes the information reported across the W-2 forms. The IRS description of Form W-3 explains that it reports totals for employees included on W-2s and is sent to the SSA.

For example, a business with several employees prepares an individual W-2 for each person. Its W-3 reports combined totals from those forms rather than listing each employee’s details separately. An employee who needs to check annual wages or withholding should use their own W-2, not the employer’s W-3. For more on the taxes shown in payroll reporting, see how FICA differs from federal income tax and how federal income tax withholding works.

What Information Does Form W-3 Include?

The W-3 consolidates information that appears across the employer’s W-2 forms. Depending on the information reported on those forms, it generally includes the employer’s identifying information, the number of W-2 forms being transmitted, and totals for wages and taxes. These totals can include wages, tips and other compensation; federal income tax withheld; Social Security and Medicare wages; and Social Security and Medicare taxes withheld.

The totals on the W-3 should align with the combined amounts on the related W-2s. If the payroll records and W-2s do not reconcile, the W-3 can carry the same error into the employer’s submission. Federal income tax withholding is distinct from Social Security and Medicare taxes, so totals need to be checked against the correct fields. Employees can also learn about federal income tax withholding exemptions.

Who Is Responsible for Filing a W-3?

The employer remains responsible for correct and timely W-2 and W-3 reporting, even if an accountant, payroll processor or other third party handles the work. The IRS instructions for Forms W-2 and W-3 explain that employers are responsible for furnishing W-2s to employees and filing the forms with the SSA correctly and on time, including when a third party performs these tasks.

Outsourcing payroll can reduce administrative work, but it does not remove the need to review the filing. Employers should check the legal business name and identifying information, employee names and wage amounts, tax-withholding totals, and the number of W-2s included. They should also reconcile the totals against payroll records before submission.

How Does a W-3 Fit into Year-End Payroll Filing?

The W-3 is prepared after the employer has reviewed payroll information and prepared the individual W-2s. The process typically involves confirming that year-to-date wage and withholding records are complete, checking employee information, and reconciling the W-2 figures with payroll records. The employer then prepares the W-3 from the verified W-2 totals and files the required materials with the SSA.

When an employer files W-2s electronically, the filing system generally generates the equivalent transmittal information, so the employer does not mail a separate paper W-3. For paper submissions, the W-3 accompanies the applicable Copy A forms. Filing methods and requirements can change, so employers should follow the current IRS and SSA instructions for the tax year involved.

What W-3 Mistakes Should Employers Check For?

Common problems include totals that do not match the related W-2s, an incorrect employer identification number or business name, a W-2 omitted from the totals, or a tax amount entered in the wrong field. A review is still necessary when a payroll provider prepares the forms because the employer retains filing responsibility.

Before filing, compare the completed W-3 with a final W-2 summary report and payroll records. If the figures differ, investigate the discrepancy rather than assuming it is a rounding issue. Catching an error during reconciliation can prevent it from being repeated in the employer’s submission to the SSA.

Do Employees Need a Copy of Form W-3?

No. The W-3 supports the employer’s reporting to the SSA and does not provide an individual worker’s earnings or withholding details. Employees should review their own W-2 to verify annual wages and withholding. If information on that form appears incorrect, they should contact their employer.

*This article is for general informational purposes only and is not legal advice.