There are four main classes of long-term corporate debt instruments: Secured debt, Unsecured debt, Tax-exempt debt, and Convertible debt.
1. Secured debt: Secured debt is backed by specific assets. This backing reduces both the lenders’ risk and the interest rate they require. Mortgage bonds, collateral trust bonds, equipment trust certificates, and conditional sales contracts are the most common types of secured debt.
- Mortgage Bonds: Mortgage bonds are secured by a lien on specific assets of the issuer. If the issuer defaults-fails to make a required payment of principal or interest-or fails to perform some other provision of the loan contract, lenders can seize the assets that secure the mortgage bonds and sell them to pay off the debt obligation.