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 Find That Lost Retirement Account With over 24 million “forgotten” 401(k) accounts, you may be surprised to learn of your unclaimed “found” money. Learn, Earn and Retire at Any Age What can the rest of us learn from millennials’ desire to embrace all of life in the moment? Take Advantage of These Business Tax Deductions As a business owner, you have many opportunities to generate tax deductions throughout the year.