U.S. Treasury bills (T-bills) are sold at auction, typically at a discount from their par value. The maturity length and the discount are used to determine the interest rate.

The bank discount rate is a calculation of the interest investors earn on short-term instruments such as Treasury bills.

Do you pay taxes on treasury bills? Here's how treasury bill earnings are taxed, what forms to expect and what you can do to ...

The rate on the 1-month Treasury bill fell to as low as 3.65% Friday, as traders continued to price in a quarter-point interest-rate cut by the Federal Reserve next Wednesday and a chance of another ...