| an obligation of the U.S. government represented by promissory notes in denominations ranging from $1000 to $1,000,000, with a maturity of about 90 days but bearing no interest, and sold periodically at a discount on the market. |

| Treasury bill n. A short-term obligation of the U.S. Treasury having a maturity period of one year or less and sold at a discount from face value. |
Treasury Bill - T-Bill
A short term debt obligation backed by the U.S. government with a maturity of less than one year. T-bills are sold in denominations of $10,000 to $1 million and have maturities of three months (13 weeks), six months (26 weeks) and 12 months (52 weeks).
T-bills are issued through a competitive bidding process at a discount from par, which means that rather than paying fixed interest payments like conventional bonds, the appreciation of the bond provides the return to the holder.
Investopedia Commentary
For example, let's say you buy a 13 week T-bill priced at $9,800. Essentially, the U.S. government, and its nearly bullet-proof credit rating, writes you an IOU for $10,000 that it agrees to pay back in three months. You will not receive regular payments like you would with a coupon bond, for example. Instead, the appreciation and, therefore, value to you, comes from the difference between the discounted value you originally paid and the amount you receive back ($10,000). In this case, the T-bill pays a 2.04% interest rate ($200/$9,800 = 2.04%) over a three month period.
Related Links
Money Market Tutorial
Bond Basics Tutorial
What Fuels The National Debt?
See also: Banker's Acceptance, Defensive Investment, Discount, Government Security, Money Market, Off-The-Run Treasuries, On-The-Run Treasuries
Also spelled: tbill, t bill, tres bill
Treasury bill