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 Question Thank you! Oops! Related Content Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio.