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 What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money. How Stocks Work Understanding how a stock works is key to understanding your investments. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain.