Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. 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 Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. Net Unrealized Appreciation (NUA) Explained Have you considered the special tax treatment on company stock held in a 401(k) plan? Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program.