General obligation bond

A general obligation bond is a type of municipal debt issued by states, cities, counties, and school districts to fund projects that benefit the whole community — schools, roads, parks, government buildings. What makes a GO bond distinctive is its backing: the issuer pledges its full faith, credit, and taxing power to repay bondholders, not the income from any particular facility.

The taxes behind that pledge depend on the issuer. Local governments primarily rely on ad valorem property taxes, while states lean on income and sales taxes. Because repayment ultimately comes out of taxpayers' pockets, GO issues typically require voter approval before they can be sold, and many jurisdictions cap the total GO debt an issuer can carry through statutory or constitutional debt limits.

Analysts judging a GO bond's safety look at the health of the tax base: property values, population and employment trends, total debt per capita, tax collection rates, and the issuer's budget discipline. This contrasts with revenue bonds, which are repaid only from the earnings of a specific enterprise (a toll road or water system) and are analyzed by coverage ratios instead. GO bonds are generally considered the more secure of the two structures.

Municipal debt is a major topic on the Series 7, which covers GO bond basics and underwriting in depth, and the Series 65 and Series 66 both test the GO-versus-revenue distinction and how each is backed and analyzed.