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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. Tax-Advantaged Health Care Planning for Retirement Heading into retirement with confidence is easier if your planning includes steps to minimize taxes, especially as it relates to health care planning.