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W-4

Employee's Withholding Certificate

Issued by Internal Revenue Service (IRS)

Time to Complete

~10 min

Filing Fee

Free

Who Files

All US employees

When to Update

New job or life change

Overview

Form W-4 is used by employees to tell their employer how much federal income tax to withhold from their paycheck. You fill it out when you start a new job or when your personal or financial situation changes. Getting it right means no surprises at tax time.

Walkthrough Sections (5 sections, 14 steps)

1

Step 1: Personal Information

5 steps

2

Step 2: Multiple Jobs or Spouse Works

2 steps

3

Step 3: Claim Dependents

3 steps

4

Step 4: Other Adjustments (Optional)

3 steps

5

Step 5: Sign and Date

1 step

Ready to start?

Walk through every field of the W-4 with clear explanations and tips.

Start Walkthrough

Official Resources

IRS Tax Withholding Estimator

Use this official tool to determine the right withholding amount.

W-4 Instructions (PDF)

Official form with instructions from the IRS.

Community Discussion

Ask questions, share tips, or report updates about the W-4.