403(b) plans are only available for employees of certain non-profit tax-exempt organizations: 501c(3) Corps, including colleges, universities, schools, hospitals, etc. If you are an employee of one of these organizations, a 403(b) can be one of your best tools for creating a secure retirement. It provides you with two important advantages. First, all contributions and earnings to your 403(b) are tax deferred. You only pay taxes on contributions and earnings when the money is withdrawn. Second, many employers provide matching contributions to your 403(b) account which can range from 0% to 100% of your contributions. The combined result is a retirement savings plan you cannot afford to pass up.