Municipal Bonds 101: A Haven for Investors

Oppenheimer & Co. Inc. May 27, 2025

Municipal bonds, commonly known as munis, are debt instruments issued by local governments including cities, counties, and states to fund essential community projects. From building parks and libraries to improving roads and utilities, municipal bonds play a vital role in public infrastructure development. For investors, they offer a compelling mix of stability, tax advantages, and portfolio diversification.

What Are Municipal Bonds?

When you invest in a municipal bond, you're essentially lending money to a government entity. In return, you receive periodic interest payments called coupons, and your principal is returned when the bond matures. Because these bonds are backed by public agencies, they are typically considered lower-risk compared to corporate bonds, especially in terms of default probability.

Key Benefits of Municipal Bonds:

  • Tax Advantages: One of the most attractive features of municipal bonds is that the interest earned is generally exempt from federal income tax. In some cases, it may also be exempt from state and local taxes, depending on where the bond is issued and the investor’s residency. This makes munis particularly appealing to investors in higher tax brackets.
  • Portfolio Diversification: Adding municipal bonds to a fixed-income portfolio can help reduce risk and balance exposure to corporate credit markets.
  • Low Default Risk: Historically, municipal bonds have shown extremely low default rates, especially general obligation bonds, making them a reliable choice for conservative investors.

How Market Conditions Affect Munis:

Like all bonds, the price of municipal bonds is sensitive to changes in interest rates. When interest rates rise, bond prices typically fall, and vice versa. This means investors may face price volatility, especially in longer-duration bonds. Additionally, many municipal bonds carry call provisions, which allow the issuer to repay the bond early—usually when interest rates drop. While this helps the issuer reduce borrowing costs, it can leave investors with fewer interest payments and the challenge of reinvesting at lower yields.

Types of Municipal Bonds:

  • General Obligation Bonds (GO Bonds): These are backed by the "full faith and credit" of the issuing government, meaning the issuer can levy taxes to ensure debt repayment. GO bonds are generally considered the safest type of municipal bond.
  • Revenue Bonds: These are secured by specific revenue streams from a particular project or service—such as toll roads, public utilities, or hospitals. While slightly riskier than GO bonds, they still maintain a relatively strong credit profile.
  • Variable Rate Demand Obligations (VRDOs): Less common and usually held by institutional investors, VRDOs have long-term maturities but offer short-term interest rates that reset periodically. This provides flexibility in a changing interest rate environment.

Accessibility and Investment Options:

Municipal bonds are typically issued in $5,000 increments and can be purchased individually or through mutual funds and exchange-traded funds (ETFs). These funds allow for greater diversification and professional management, making them a convenient option for individual investors.

In Summary: Why Consider Municipal Bonds?


  • Municipal bonds are loans made to local governments to fund public works and services.
  • Interest income is often tax-free, making munis particularly beneficial for high-income investors.
  • GO bonds are secured by tax revenues, while revenue bonds are backed by project-generated income.
  • They offer stability and low default risk, with added benefits when used in diversified portfolios.

For investors seeking a blend of security, tax efficiency, and social impact, municipal bonds can be a smart and strategic addition to an investment portfolio. Reach out to an Oppenheimer Financial Professional today to learn more. You can find one in your area here.

DISCLOSURE

The information set forth herein has been derived from sources believed to be reliable but is not guaranteed as to accuracy and does not purport to be a complete analysis of any security, company, or industry involved. Opinions expressed herein are subject to change without notice. Oppenheimer & Co. Inc. does not provide legal or tax advice.

This material is not a recommendation as defined in Regulation Best Interest adopted by the Securities and Exchange Commission. It is provided to you after you have received Form CRS, Regulation Best Interest disclosure and other materials.

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