Treasury Bills (T-Bills) are government-backed securities, with a minimum purchase price of $1,000. They are offered in 3-month, 6-month, and 12-month lengths. You buy the T-bill at a discount which, when divided by the effective cost, equals your rate of interest. (So if you purchase a $10,000 T-bill for $9,300, your interest rate is $700 ¸ $9,300=.08 or 8 percent.) The discount is deposited immediately into your account, and the rest of the face value arrives on the day the bond matures. You have the option of rolling over your T-bill for another period. Since T-bills, like all offerings from the Treasury Department are backed by the full faith and credit of the U.S. Government, they’re considered just about the safest investments around. (more Treasury Bills (T-Bills) information below useful links)