Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. 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 Question Thank you! Oops! Related Content What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. Forecast This short video helps explain why markets can be as unpredictable as the weather. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.