9900 Main Street Plaza 101 Fairfax, VA 22031

Phone: (703) 383-1TAX
Fax: (703) 383-9TAX



Professional Tax Centers has compiled a few online calculators that can help you with your tax and investment expectations.  Please follow the links below to use the calculators.

IRS Withholding Calculator

Capital Gains Calculator

This calculator, provided by, allows you to calculate the effects of the capital gains tax rates on your investments and potential investments.

Compound Interest Calculator

Use this calculator, provided by, to calculate the effects of interest compounding as well as additions you make to your investment.

Salary Paycheck Calculator

Hourly Paycheck Calculator

The website offers these calculators to help employers and employees determine a good estimate of proper withholding for paychecks.  

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