Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. How Income Taxes Work A quick look at how federal income taxes work. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.