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 Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. 3 Questions to Consider About Whole Life Insurance Whole Life insurance: Protection, supplement income in retirement and stable, predictable cash value Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program.