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 Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. Success Strategies: Start planning Now Using Life Insurance as part of a potential business succession strategy Paying Tax Later Doesn't Always Mean Paying Less 401(k) savings are taxed as ordinary income when funds are withdrawn.