Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Get Paid for Going Green Those looking into environmentally minded home modifications may get a boost from Uncle Sam’s tax incentives. Death is No Excuse The federal government requires deceased individuals to file a final income tax return.