General Obligation Bond

A general obligation bond — or GO bond — is a municipal bond secured by the full faith, credit, and taxing power of the issuing government entity. Rather than relying on revenue from a specific project, GO bonds are backed by all revenues and the government’s power to raise taxes, making them senior to all other local government debt.

Backed by taxing power, not project revenue

The fundamental distinction between GO bonds and revenue bonds is the source of repayment. A school district issuing a GO bond for a new school is backed by the district’s entire budget, supported by property taxes. If the school generates insufficient revenue (schools typically do not), the district can raise property taxes to meet bond payments.

This taxing-power backing creates a moral obligation and a legal obligation. When a government issues GO bonds, it implicitly commits to maintaining tax rates sufficient to service debt. Default is possible only if a government is unable to raise taxes (politically or constitutionally blocked) or unwilling to prioritize bond payments. Historical default rates on GO bonds are extremely low — far lower than revenue bonds or corporate bonds of similar credit rating.

The broad backing also ensures GO bonds have superior duration and liquidity characteristics relative to revenue bonds. A major city’s GO bonds are more tradable and more tightly priced than the city’s water-revenue bonds, despite similar overall credit quality.

Voter approval and democratic oversight

In many states, issuing GO bonds requires voter approval — a referendum in which residents vote on the bond measure. This democratic check is intended to ensure responsible borrowing. California, New York, and many other states have constitutional requirements that GO bonds for major expenditures be submitted to voters.

The referendum process makes GO bond issuance slower and more politically fraught than issuing corporate debt. But it also ensures broad public support. A school bond that passes with 70% voter approval has been collectively endorsed by the community in a way that a corporate debt issuance never is.

The downside: voters can block necessary infrastructure. A fiscally responsible government unable to issue bonds due to voter rejection faces underfunded schools, aging infrastructure, and declining competitiveness. The democratic check can cut both ways.

Credit quality and pricing

GO bond credit quality depends primarily on the financial health and tax base of the issuing government. A wealthy suburban school district with growing property values and stable finances can issue GO bonds at yields only slightly above Treasury notes (perhaps 0.5–1% higher, reflecting the minor default risk). A financially distressed city might issue GO bonds at yields 3–5% above Treasuries, reflecting substantially higher default risk.

A GO bond from a credit rating perspective typically carries Moody’s or S&P ratings (AAA to D, parallel to corporate bond ratings). The ratings reflect analysts’ assessment of the issuer’s ability and willingness to raise taxes and prioritize debt service. Rating upgrades (improving economic conditions, rising property values) lower yields; downgrades raise them.

The tax exemption means GO bonds trade at lower nominal yields than equivalent corporate bonds. A AAA-rated corporate bond might yield 4%; a AAA-rated GO bond from a wealthy municipality might yield 3%. But the after-tax comparison favors the GO bond for high-income taxpayers.

Uses for GO bond proceeds

GO bonds finance a wide array of public goods: schools, government buildings, public health facilities, libraries, roads, bridges, parks. Unlike revenue bonds, which must finance self-supporting projects, GO bonds can fund anything the voters and officials deem in the public interest.

This flexibility makes GO bonds more versatile but also politically contestable. A controversial bond issuance (for a controversial civic project) might fail voter approval, while an uncontroversial one passes easily. The political economy of municipal debt is inseparable from the political economy of each jurisdiction.

GO bonds vs. revenue bonds: a comparison

Revenue bonds are backed only by revenue from a specific project (a parking garage, a toll road, a water system). If the project fails, revenues decline, or rates cannot be raised, revenue bondholders bear the risk. GO bonds are backed by all government revenues, making them senior and lower-risk.

This difference is reflected in yields: identical credit-quality issuers typically price revenue bonds 50–150 basis points higher than GO bonds due to the higher risk. Investors compensate for the narrower security base by demanding higher return.

From an issuer perspective, GO bonds are attractive because of lower borrowing costs. But voter approval is required (in most states) and political scrutiny is high. Revenue bonds can often be issued by administrative bodies without voter approval, making them faster but more expensive.

Callable bonds and refinancing

Many GO bonds are callable — the issuer can redeem them before maturity if interest rates fall. This allows governments to refinance old high-coupon debt with new low-coupon debt, saving taxpayer money.

The callability reduces the upside for bondholders when rates fall. An investor holding a callable GO bond will see it called if yields drop significantly, limiting capital gains. This is priced into callable bonds — they yield slightly more than non-callable bonds of the same issuer and maturity.

See also