The key difference between Treasury bonds and Treasury bills is their maturity. Treasury bonds have longer maturities, typically ranging from 10 to 30 years, making them ideal for long-term investors seeking a steady income stream and a safe haven for capital. In contrast, Treasury bills, often referred to as T-bills, have short-term maturities, typically less than one year, making them a preferred choice for investors looking for a secure, short-term parking place for their money. Both are considered extremely low-risk as they are backed by the full faith and credit of U.S. government.