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 Message Thank you! Oops! Related Content Critical Estate Documents Sound estate management includes creating financial and healthcare documents. Here's an inside look. Rightsizing for Retirement What does your home really cost? Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more.