W4 Form 2021
Form W4 is used by employees to let their employer know the amount to withhold and pay for federal income taxes on each paycheck. An employee’s elections on Form W-4 provide the employer with the factors needed to accurately calculate withholding.
If an employee does not fill out a W-4 correctly, too little tax may be withheld and result in the person owing tax to the IRS when they file their individual return, including potential penalties. If too much federal tax is withheld per paycheck, the individual will overpay the IRS and will receive a refund at the end of the tax year.
W4 Form – Why to Use
Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay. If too little is
withheld, you will generally owe tax when you file your tax return and may owe a penalty. If too much is withheld, you will generally be due a refund.
Complete a new Form W-4 when changes to your personal or financial situation would change the entries on the form. For more information on withholding and when you must furnish a new Form W-4, see Pub. 505, Tax Withholding and Estimated Tax.Download PDF of W4 Form 2021 from www.irs.gov using the direct download link given below.