Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Filing Final Tax Returns for the Deceased The federal government requires deceased individuals to file a final income tax return. Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction.