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 Don’t Get Trapped by These Retirement Myths Have you been making correct assumptions about financial planning for retirement? Here are some popular retirement myths. Tax Deductions: Catch Them All! Most of us pay too much in taxes because we aren’t aware of all the tax deductions available. Thanks, Mom! When it comes to managing your personal finances, there’s plenty of complex advice out there. But often, simpler is better.