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 | Related Content Making Your Tax Bracket Work Have you explored all your options when it comes to managing your taxable income? What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money. Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction.