What type of bonds are commonly associated with longer maturities of 10 to 30 years and pay semiannual interest?

Bonds that are commonly associated with longer maturities of 10 to 30 years and pay semiannual interest are Treasury bonds, also known as T-bonds. These government securities are issued by the U.S. Department of the Treasury and are designed to finance government spending.

The defining characteristic of T-bonds is their long-term maturity, which typically ranges from 10 to 30 years. Investors receive interest payments every six months until maturity, at which point the face value of the bond is returned to them. This structure makes T-bonds a stable investment, offering fixed interest income over an extended period, thus appealing to those looking for steady, long-term cash flow.

In contrast, other options such as T-bills are short-term securities with maturities of one year or less and do not pay interest in the traditional sense, while T-notes have maturities of 2 to 10 years and also pay semiannual interest but do not extend to the same long maturities as T-bonds. Series EE bonds are a type of savings bond designed for individual investors, providing a lower yield and longer holding periods for accumulation but are not associated with the same long maturities as T-bonds.