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 Message Thank you! Oops! Related Content Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings. Mortgages in Retirement Explore the benefits and drawbacks to paying off your mortgage prior to retirement with this article. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit.