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. How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.