When you buy a bond, you’re lending money to whoever issued it, a company, a government, a municipality. In exchange, they promise to pay you interest on a set schedule and return your original loan amount when the bond matures.
That’s the basic deal. Bonds are often called “fixed income” because of that regular interest payment structure.
How Bonds Work
A bond has a few key parts:
- Principal: the amount borrowed (also called the face value or par value, often $1,000 per bond)
- Interest rate or coupon: what the bond pays, usually expressed as a percentage of the principal
- Maturity date: when principal is due back, could be 1 year, 5 years, 20 years, or more
- Issuer: the borrower (a government, municipality, or corporation)
- Credit quality: how likely the issuer is to repay, rated by agencies like Moody’s or S&P
A concrete example: a bond with a $1,000 face value, a 4% coupon rate, and a 10-year maturity pays $40 per year (often $20 every six months) and returns your $1,000 at the end of 10 years, assuming the issuer stays solvent. The interest you earn is taxable income in most cases, though U.S. Treasury bonds are exempt from state and local taxes.
Types Of Bonds
Not all bonds are the same:
- U.S. Treasury bonds: issued by the federal government, considered among the safest bonds available. Includes T-bills (short term), T-notes (medium term), and T-bonds (long term).
- Municipal bonds (munis): issued by states, cities, and local governments. Interest is often exempt from federal income tax.
- Corporate bonds: issued by companies. Higher potential yield than government bonds, but higher credit risk.
- High-yield bonds (junk bonds): corporate bonds from issuers with lower credit ratings. Higher interest offered, but meaningfully higher risk of default.
Why People Buy Bonds
People use bonds for:
- Income: regular interest payments can supplement other income or help cover living expenses
- Diversification: bonds often behave differently from stocks, which can reduce overall portfolio swings
- Lower volatility than stocks, in many cases: bonds don’t typically drop as sharply during stock market sell-offs
- Preserving money for a future date: holding a bond to maturity locks in a known return, assuming the issuer pays
Bonds can be useful, but they’re not risk-free. To understand how bonds fit alongside stocks, see What Is Investment Risk?.
Bond Risks
Bonds can lose value for several reasons.
Interest rate risk: When interest rates rise, existing bond prices often fall. New bonds pay higher rates, which makes older lower-rate bonds less attractive to buyers. The longer the bond’s term, the more sensitive it is to rate changes.
Credit risk: The issuer may struggle to pay interest or repay principal. A company going bankrupt may not be able to return your money. Government bonds carry less of this risk, but corporate and high-yield bonds carry more.
Inflation risk: If inflation rises above your bond’s interest rate, your buying power shrinks even as you earn interest. A bond paying 3% during 5% inflation means you’re losing ground in real terms.
Liquidity risk: You may not be able to sell quickly at a fair price. Individual bonds, especially corporate ones, can be harder to exit without accepting a lower price.
Longer-term bonds are more sensitive to interest rate changes than shorter-term bonds.
Individual Bonds vs Bond Funds
An individual bond has its own maturity date and issuer risk. If you hold it to maturity and the issuer doesn’t default, you get back your principal plus all interest payments. You know exactly what you’ll receive.
A bond fund owns many bonds and spreads risk across issuers. But bond fund prices move up and down daily, and unlike individual bonds, they don’t mature. If rates rise and you need to sell your bond fund at the wrong time, you could get back less than you put in.
Before buying either, understand the fees, the risk, and why it belongs in your plan. For a broader look at how funds work, see What Is A Mutual Fund?.
Bonds vs Stocks: A Quick Comparison
| Bonds | Stocks | |
|---|---|---|
| What you are doing | Lending money | Buying ownership |
| Income | Fixed interest payments | Dividends (if any, not guaranteed) |
| Risk level | Generally lower | Generally higher |
| Growth potential | Limited to interest rate | Unlimited (and can drop sharply) |
| If issuer/company fails | Bondholders paid before stockholders | Stockholders paid last |
| Best for | Income, stability, shorter horizons | Long-term growth |
Frequently Asked Questions
Q: Are bonds safer than stocks?
Generally yes, but “safer” doesn’t mean risk-free. Bonds typically have less price volatility than stocks, and bondholders get paid before stockholders if a company fails. That said, bonds can still lose value due to rising interest rates, issuer default, or inflation eating into your returns.
Q: Can you lose money on bonds?
Yes. If you sell a bond before it matures and rates have risen since you bought it, you’ll likely get less than you paid. Bond funds can also lose value. And if an issuer defaults, you may not get your principal back. U.S. Treasury bonds are considered very low risk for default, but they still carry interest rate risk.
Q: What’s the difference between a bond’s coupon rate and its yield?
The coupon rate is the fixed interest the bond pays based on its face value. The yield is what you’d actually earn based on the price you pay today. Buy a bond at a discount (below face value) and your yield will be higher than the coupon rate. Buy at a premium (above face value) and your yield will be lower.
Q: Where do bonds fit in a beginner’s investment plan?
Most beginners are better served by low-cost bond funds or target-date funds rather than picking individual bonds. Bonds become more useful as you get closer to needing the money, since they can provide stability and income. Understanding your investing time horizon is a good place to start.
Learn More
- Investor.gov: Bonds
- TreasuryDirect.gov: Types of Treasury Securities
- SEC.gov: What Are Corporate Bonds?