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 Message Thank you! Oops! Related Content Redefining Retirement Planning Millennials are redefining retirement planning. 7 Ways to Show Your Appreciation for Mom this May For the unsung heroes who raised us, protected us, encouraged us and cleaned up after us, now is the chance to express our gratitude. The Next Gig Thing Make the gig economy work for you.