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's My 2022 Tax Bracket? Knowing your tax bracket can make a large difference in your tax preparations. Check out this handy reference of updated ranges from the IRS in case your designated bracket has changed. Tax Freedom Day Assess how many days you'll work to pay your federal tax liability.