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2025 IRS Form W-4 & Instructions

About Form W-4

Users: Employees
Filing Deadline: No deadline (submit to employer)
Purpose: Specify tax withholding
Applicable Income Types: Employment income

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Tips For Using Form W-4

1. Completing Form W-4
Fill out your Form W-4 accurately by providing your personal information, including your name, address, Social Security number, and filing status. Choose your withholding allowances carefully.
2. Understanding Withholding
Be aware of how your withholding affects your tax liability. Adjust your Form W-4 if necessary to ensure the right amount is withheld from your paycheck to cover your tax obligations.
3. Updating Form W-4
Review and update your Form W-4 whenever your personal or financial situation changes, such as getting married, having a child, or starting a new job. Keeping your form current helps you avoid under or over-withholding.