When a municipal bond is initiated, the issuer normally receives a cash payment in exchange for an agreement to provide the investor who provided the cash payment, a repayment over an agreed time period. The standard repayment periods for municipal bonds can be anything from six months to 10-30 years, perhaps even longer. The shorter periods are quite rare and you would be hard pressed to find investments for such a short period of time unless either the sum being borrowed is low or the repayment period can be guaranteed. Typically, 20+ years is the industry standard.

The purpose of municipal bond investing would be to use the investment from a bond sale to pay for the project that it is being invested for, typically this is a project or a long term capital investment or development. Depending on the stipulations of the bond offering, all of the capital raised from a bond sale may be used immediately or provisions put in place to spread it over a period of time.