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 Message Thank you! Oops! Related Content 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. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.