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 Self-Employed Retirement Plans Estimate the maximum contribution amount for a Self-Employed 401(k), SIMPLE IRA, or SEP. Finding the Balance The sandwich generation faces unique challenges. For many, meeting needs is a matter of finding a balance. The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer.