Municipal Bond vs Corporate Bond: Tax, Yield and Risk
Short answer. Municipal bonds are issued by states, cities and agencies, and their interest is usually exempt from federal income tax. Corporate bonds are issued by companies and pay fully taxable interest, usually at a higher stated yield. The better one depends on your tax bracket, so compare after-tax or tax-equivalent yields.
Side by side
| Municipal bond | Corporate bond | |
|---|---|---|
| Issuer | State or local government, or agency | Company |
| Federal tax on interest | Usually exempt | Taxable |
| Stated yield | Lower | Higher for the same credit quality |
| Credit risk | Generally low, but defaults happen (revenue bonds more than general obligation) | Wide range, from investment grade to high yield |
| Liquidity | Thinner; wider dealer spreads | Generally deeper |
| Best account | Taxable account | Tax-deferred account such as an IRA |
| Who benefits most | High-bracket investors | Investors in low brackets or tax-advantaged accounts |
Which one fits you?
Lean towards Municipal bond if…
- you are in a high tax bracket and invest in a taxable account
- you value in-state tax exemption
Lean towards Corporate bond if…
- you hold bonds in an IRA or 401(k)
- you want higher stated yield and accept credit risk
Frequently asked questions
What is tax-equivalent yield?
The pre-tax yield a taxable bond must pay to match a muni’s after-tax yield: muni yield divided by (1 minus your tax rate).
Are municipal bonds safe?
Defaults are rarer than for corporates, but not zero. Credit quality varies by issuer and by whether the bond is general obligation or revenue.
Is muni interest always tax free?
Not always. Some munis are subject to the alternative minimum tax, and capital gains on a muni are taxable.
General education, not personal financial advice. Figures are typical US examples and vary by provider and year.