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 Message Thank you! Oops! Related Content How Big is Money? Learn a little about worldwide currency in this fun infographic A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. Tax Freedom Day Assess how many days you'll work to pay your federal tax liability.