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 A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. Working With A Financial Professional A financial professional is an invaluable resource to help you untangle the complexities of whatever life throws at you. Asset Allocation Consider how your assets are allocated and if that allocation is consistent with your time frame and risk tolerance.