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 What to Look for in an Extended-Care Policy Here’s a list of 8 questions to ask that may help you better understand the costs and benefits of extended-care insurance. Find That Lost Retirement Account With over 24 million “forgotten” 401(k) accounts, you may be surprised to learn of your unclaimed “found” money. Tax-Advantaged Retirement Planning Reduce your tax liability in retirement.