Treasury bills, also known as T-bills, are U.S. debt instruments issued and backed by the U.S. federal government that possess shorter maturity periods of four weeks to one year.
These investments offer the lowest risk due to their guarantee from the United States government, making it one of the safest investments for those seeking stable returns over a short period.
T-bills are available in denominations of $100 up to $10 million and can be purchased with various maturities. The most popular terms range from four, eight, 13, 17, and 26 to 52 weeks.