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Content Paying Tax Later Doesn't Always Mean Paying Less 401(k) savings are taxed as ordinary income when funds are withdrawn. Lifetime of Earnings Estimate how much you have the potential to earn during your working years. Roth 401(k) vs. Traditional 401(k) This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k).