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 5 Benefits of Working in Retirement Here are 5 reason why you may consider working through retirement. Capital Gains Tax When Selling Your Home If your clients are buying or selling a home, use this to help them determine if they qualify for capital gains taxes. When Life Insurance Becomes Taxable Life insurance proceeds are generally tax-free. But not in all cases.