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 Comparing Mortgage Terms Estimate the total cost in today's dollars of various mortgage alternatives. A Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain.