require no personal identification information, Try
factors that impact the calculation of your federal income taxes.
These factors include: marital status, number of withholding allowances
(exemptions), and amount of your gross earnings during the year.
include tax reductions such as Public Employees Retirement System (PERS)
and TIAA/CREF retirement contributions that combine to determine
what amount of federal income tax is owed.
Calculate Federal Withholding
Withholding Tax Calculator
In the United States, withholding taxes on wages by employers is
required by the federal government as well as most state, and some
local governments. Taxes withheld include:
law, employees must provide their employer with a Federal Form W-4.
This form provides the employer with the following information:
Withholding allowances includes personal exemptions, itemized
deductions, plus losses, or credits.
Employers are entitled to rely on employee declarations on Form W-4
unless they know they are aware of inaccuracies.
The following steps describe how to calculate your federal income
Determine the value of your total withholding allowances
(exemptions) as claimed on your current W-4 Form by multiplying
each allowance (exemption) by the semi-monthly amount of
Subtract the amount of any salary reductions, such as PERS, TIAA/CREF, or health insurance premium from your total
semi-monthly gross earnings.
Subtract STEP 1 from STEP 2 to determine your taxable gross
Use the calculator above to calculate the amount of
your federal income taxes. Be sure to select the proper
setting based upon your marital status (single or married) as
marked on your current W-4 Form.
United States federal income tax is a pay-as-you-go tax system. You
are required to pay taxes as you earn or receive income throughout
You can then file your taxes traditionally or do your taxes online
using tax software like TurboTax or H&R Block when you are ready to
If you do not have enough taxes withheld over the year, or fail
to pay enough in estimated taxes, you may be subjected to a
penalty for underpaying with your tax payments.