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 Top Tips for a Retirement Tailgate The majority of U.S. workers retire at age 63. Do you want to leave the game earlier? Or play longer? How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. Planning Your Legacy Legacy or estate planning is part of good retirement planning. Here are a few things to consider when working on your plan.