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. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Global vs. International: What’s the Difference? International funds invest in non-U.S. markets, while global funds may invest in U.S. stocks alongside non-U.S. stocks. Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction. Rollover Unused 529 Funds to a Roth IRA The SECURE Act 2.0 created a provision that allows unused funds from a 529 college savings account to rollover to a Roth IRA.