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 Financial Fixes: Beware of Market Bubbles Don't crash and burn in a market bubble, here are some ideas on how to build a solid investment portfolio. The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report? How Helping Charities Helps You Donation is on people’s minds around tax season.