IRS Withholding Calculator
If you're employed, the Withholding Calculator can assist you in determining whether you should provide your employer with an updated Form W-4, Employee’s Allowance Certificate. This will help ensure that the right amount of Federal income tax is withheld from your earnings, preventing overpayment or underpayment.
Use this Tool To:
Estimate your federal income tax withholding
See how your refund, take-home pay, or tax due are affected by withholding amount
Choose an estimated withholding amount that works for you
What You Need:
Paystubs for all jobs (including spouse)
Other income info (side jobs, self-employment, investments, etc.)
Most recent tax return