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 Six Surprising Facts About Retirement Confidence This attention-grabbing infographic covers retirement topics you may not have considered. What's My 2023 Tax Bracket? Check out this handy reference of updated ranges from the IRS in case your designated bracket has changed. Who Is Your Trusted Contact? This investment account question is vital and answered as early as possible.