Moral Obligation Bond: Definition & Meaning | Bondfish
A moral obligation bond is a U.S. municipal revenue bond backed by the issuing state’s non-binding pledge to make up debt-service shortfalls — a moral, but not legally enforceable, commitment to pay.
What it means
Moral obligation bonds are typically issued by a state agency or authority to finance projects such as housing or infrastructure. The bonds are first serviced by the project’s own revenues. Behind that sits a debt-service reserve fund; if the fund is ever drawn down, the state legislature may appropriate money to replenish it — but it is under no legal obligation to do so. This structure is U.S.-specific and dates back to the 1960s, when it let authorities borrow without the voter approval a general obligation pledge usually requires.
Because the backstop is discretionary, rating agencies generally rate a moral obligation bond one notch or more below the state’s own rating, and the bonds yield more than comparable general obligation debt.
Why it matters for bond investors
The extra yield is compensation for a real difference in security: a legislature that declines to appropriate funds leaves holders exposed to the project’s revenues alone. Assessing one of these bonds therefore means judging both the project and the state’s political track record of honoring its pledges. Understanding where a bond sits on this spectrum of security — from general obligation to pure revenue — is central to municipal bond ratings and credit risk; for the broader distinction, see how general obligation and revenue bonds compare.
Related terms
This definition is for general information only and is not investment advice. Bond investing involves risk, including possible loss of principal.