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 The Cost of Procrastination Don't let procrastination keep you from pursuing your financial dreams and goals. When Couples Know TV Over Finances Bonding with your significant other over TV plots is fun but when you know more about them than your money picture..... Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit.