Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. 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 Rightsizing for Retirement What does your home really cost? How Income Taxes Work A quick look at how federal income taxes work. Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year.