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 Question Thank you! Oops! Related Content Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education. When Life Insurance Becomes Taxable Life insurance proceeds are generally tax-free. But not in all cases. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability.