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 | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content 6 Tips From Tech Start-ups for Your Non-tech Business Let’s suppose you’re reading this on your phone. You’re wearing clothes that you bought online, and you’re on your way to... Asset and Account Consolidation for Your Estate Investment account consolidation is important to consider for estate planning. You May Need to Make Estimated Tax Payments If… Have income that isn’t subject to tax withholding? Or insufficient withholdings? You may have to pay estimated taxes.