Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. 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 Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction. Filing Final Tax Returns for the Deceased The federal government requires deceased individuals to file a final income tax return. Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable.