---
title: "What Is Form W-4?"
slug: "what-is-form-w-4"
updated: 2026-09-08T06:50:47Z
published: 2026-09-08T06:50:47Z
canonical: "documentation.infinite.com/what-is-form-w-4"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.infinite.com/llms.txt
> Use this file to discover all available pages before exploring further.

# What Is Form W-4?

Abstract

Form W-4 (Employee's Withholding Allowance Certificate) is a United States federal form (Internal Revenue Service). Employers use the form to ensure the correct amount of federal income tax is withheld from a hire's pay.

BrassRing Onboard is set up to manage Form W-4 for new hires. Once hires become employees, they do not use BrassRing Onboard to change Form W-4. Employers provide other ways for employees to change Form W-4.

In BrassRing Onboard:

- Form W-4 can be configured as either as a required or optional task.
- The electronic signature (eSignature) used by a new hire to sign Form W-4 lawfully represent the signature that the person would typically provide on a hard copy of the form.

Reports can be pulled for all W-4 and I-9 fields. This is in combination with Job & Applicant entity fields.

For more information on Form W-4, refer to the Internal Revenue Service (IRS) website, [Form W-4, Employee's Withholding Allowance Certificate](http://www.irs.gov/uac/Form-W-4,-Employee%27s-Withholding-Allowance-Certificate-1).