Letter: T

Your gain or loss on an investment in a given year. Usually expressed as a percentage.

A retirement savings plan for employees of the U.S. government and members of the uniformed services. Like a 401(k), it is a defined contribution plan, in which an employee makes regular contributions to an individual account.

A retirement account in which payment of taxes is delayed until the money is withdrawn. Examples include IRAs and employer-sponsored plans such as 401(k)s.