December 16, 2023October 31, 2026

The Pros and Cons of Investing in Bonds

What bonds pay you and what they can cost you

A bond is a loan. When a government, municipality, corporation, or other entity issues bonds, it borrows money from investors and promises to pay interest along the way and return the face value at maturity. Many individuals and organizations buy bonds for that fixed income. Whether they suit your portfolio depends on what you need from it.

Bonds can help diversify a portfolio, manage risk, and generate income. They also carry risks that are easy to underestimate when the payments look so predictable. What follows covers several of the main points on each side, not every consideration.

Pros

Here are several reasons investors include bonds in a portfolio.

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Steady income stream
Most bonds pay interest at fixed intervals, so you know in advance what will arrive and when. For retirees, or anyone who needs regular money to cover their bills, that reliability is often the main reason to buy them.
Diversification and risk management
Bonds often move differently from stocks. Their value doesn't necessarily rise and fall with the stock market, so holding some of each can lower the overall risk of a portfolio. When share prices drop, the bond part may soften the blow, although that is a tendency and not a guarantee.
Preservation of capital
Bond prices generally swing less than stock prices, which makes bonds a relatively safer place for money. Investors who mainly want to keep what they have, while still earning a reasonable return, often make them a core part of their portfolio.
Liquidity
Bonds can generally be bought and sold relatively quickly, which is harder with some other investments. Real estate is the obvious comparison. That speed helps if you might need access to your money in the short term, or if you want to act when market conditions shift.
Predictable returns
Stocks can gain or lose a large part of their value without much warning. A bond typically pays a set amount of interest at regular intervals, so you know the return up front. Investors who care more about steady income than about the chance of high returns usually find that appealing.
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Tax advantages
Some bonds come with a tax break. Municipal bonds are the usual example: their interest is typically exempt from federal income tax, and if you live in the municipality that issued them, you may owe no state or local tax on it either.

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Cons

Most of the downsides concern what can happen to a bond's value, or to the worth of its income, over time.

Interest rate risk
One of the main risks in bond investing comes from interest rates. When rates go up, the market value of the bonds you already own may fall, and that can mean a capital loss for you as an investor.
Inflation risk
Inflation eats into what your bond income can buy. The interest payments are fixed, and when prices rise faster than those payments, your real return shrinks, even though the amount you receive stays the same.
Credit risk
An issuer can fail to pay its debts, and if that happens, bondholders can lose money. The risk is higher with issuers that have lower credit ratings, so the rating is worth checking before you buy.
Interest rate risk before maturity
The interest rate problem hits hardest if you need to sell before the bond matures. Rising rates push down the value of existing bonds, so a bondholder who sells early may take a loss. When rates are climbing, this makes bond investing noticeably less attractive.
Reinvestment risk
Reinvestment risk gets less attention. When a bond matures or you sell it, the money has to go somewhere, and the new interest rate may be lower than the one you had. Your overall return then drops, which is most likely when rates are falling.
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Opportunity cost
Money you put into bonds is not available for stocks, real estate, or other options that could potentially earn more. Giving up that possible higher return is the opportunity cost.

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Conclusion

How much each point weighs depends on your goals, your tolerance for risk, and how long you can leave the money alone. If there is a fair chance you will need to sell before maturity, interest rate risk deserves the most attention. If you plan to hold until the end, inflation and the issuer's credit rating probably matter more.