What bonds are and why homeowners buy them

A bond is a loan you make to a government or company. When you buy a bond, you lend money for a set period — usually anywhere from a few months to 30 years — and the borrower pays you back with interest. Unlike stocks, which give you ownership in a company, bonds are a debt agreement: you know roughly how much you will earn and when you will get your money back.

Homeowners often buy bonds because they are less volatile than stocks. If you have paid off your mortgage or are building savings outside your home equity, bonds can provide steady income without the sharp ups and downs of the stock market. They also work well alongside a mortgage payment plan — the predictable returns help you plan for other expenses or retirement.

Key Takeaways

  • Bonds are loans you make to governments or companies; you receive regular interest payments and your principal back at maturity.
  • You can buy individual bonds directly or invest in bond funds through a brokerage account, and each route has different costs and time requirements.
  • Bond prices move opposite to interest rates: when rates rise, existing bond prices fall, and vice versa.
  • Treasury bonds (issued by the U.S. government) carry almost no default risk, while corporate bonds pay higher interest but carry more risk.
  • Most individual investors start with bond funds or Treasury bonds rather than picking individual corporate bonds, because the research and monitoring are simpler.

Individual bonds versus bond funds

You have two main paths: buy individual bonds or buy shares in a bond fund. An individual bond is a single debt contract — you own it until maturity, receive interest payments (called coupons), and get your principal back on a set date. A bond fund is a pool of many bonds managed by a fund company; you own shares of the fund, not the bonds themselves, and the fund pays you dividends from the interest it collects.

Individual bonds work best if you plan to hold them until maturity and want to know exactly what you will receive. You buy them through a brokerage (Fidelity, Vanguard, Charles Schwab, or others) and pay a small transaction fee. The downside: you need enough money to buy a meaningful position — most bonds cost $1,000 to $5,000 per bond — and if you need to sell before maturity, you may take a loss if interest rates have risen.

Bond funds are simpler for most people starting out. You can invest any amount, the fund manager handles buying and selling, and you can move your money more easily. The trade-off is that you never get a may provide return date; the fund's value changes daily with interest rates and the credit quality of the bonds it holds. You also pay an annual management fee, usually 0.05% to 1% per year depending on the fund.

Types of bonds and their risk levels

Treasury bonds are issued by the U.S. government and backed by its taxing power. They carry almost no default risk — the government will not fail to pay you back. Treasury bonds come in different maturities: Treasury bills (under one year), Treasury notes (2 to 10 years), and Treasury bonds (20 to 30 years). The longer the maturity, the higher the interest rate, because you are lending money for a longer time. You can buy Treasuries directly from the government at TreasuryDirect.gov with no fees, or through a brokerage.

Municipal bonds are issued by states, cities, and local governments to fund schools, roads, and other projects. Many municipal bonds offer tax-free interest income if you live in the state that issued them — a major advantage for higher-income homeowners. The risk is low but not zero; the issuer must have stable finances to pay you back. Municipal bonds typically pay less interest than corporate bonds because of the tax benefit.

Corporate bonds are issued by companies and pay higher interest rates than government bonds because companies carry more default risk than governments. A strong company like Apple or Microsoft has very low default risk and pays modest interest. A newer or weaker company pays higher interest to attract lenders, but you run a real risk of losing money if the company fails. Most first-time investors avoid individual corporate bonds and instead buy corporate bond funds, where a manager spreads the risk across many companies.

How interest rates affect bond prices

Bond prices and interest rates move in opposite directions — this is the most important thing to understand before you buy. When the Federal Reserve raises interest rates, new bonds pay higher interest, so older bonds paying lower interest become less valuable. If you own a bond paying 3% and new bonds pay 5%, your bond is worth less if you try to sell it before maturity.

This matters most if you own individual bonds and need to sell early. If you hold the bond until maturity, you get your full principal back regardless of what happened to the price in between. With bond funds, the price fluctuation is ongoing — the fund's share price rises when interest rates fall and drops when rates rise. If you are comfortable holding for years, these price swings are temporary. If you might need the money soon, they are a real concern.

The longer the bond's maturity, the bigger the price swing when rates change. A 30-year Treasury bond will drop more in value when rates rise than a 2-year Treasury note will. This is why longer-term bonds pay higher interest — you are taking on more price risk in exchange for more income.

How to open an account and make your first purchase

To buy bonds, you need a brokerage account. Open one at Fidelity, Vanguard, Charles Schwab, or a similar firm by providing your Social Security number, address, and bank details. The process takes 10 to 15 minutes online. You will choose between a regular taxable account and a tax-advantaged account (IRA or 401k); most people starting out use a regular account unless they are saving for retirement specifically.

Once your account is open and you have transferred money in, you can search for bonds. If you want Treasury bonds, you can buy them directly at TreasuryDirect.gov without a brokerage account, which saves you fees. For bond funds, search your brokerage's fund library by name or ticker symbol. Popular beginner-friendly bond funds include the Vanguard Total Bond Market Fund (BND) and the iShares Core U.S. Aggregate Bond ETF (AGG). Both hold hundreds of bonds across different types and maturities, so your risk is spread out.

Place your order just as you would buy a stock: enter the amount you want to invest, review the details, and confirm. The transaction settles in one to three business days. After that, you will receive interest payments (usually twice a year for individual bonds, monthly or quarterly for funds) either as cash or reinvested automatically into more shares.

Costs and fees to watch for

Buying Treasury bonds directly at TreasuryDirect costs nothing. Buying Treasuries through a brokerage usually costs $0 to $10 per transaction, depending on the firm. Individual corporate or municipal bonds typically cost $10 to $25 per transaction.

Bond funds charge an annual expense ratio — a percentage of your investment that covers management and operating costs. A low-cost index fund like BND or AGG charges around 0.03% to 0.05% per year, meaning you pay $3 to $5 annually on a $10,000 investment. Actively managed bond funds charge more, often 0.5% to 1% per year. Over time, these fees add up, so most investors choose low-cost index funds.

Some brokerages also charge account maintenance fees if your balance is below a certain level, though most waive this for online accounts. Always check the fee schedule before you open an account.

Building a bond strategy that fits your situation

Your bond strategy depends on when you need the money and how much risk you can tolerate. If you are saving for something five or more years away and can handle price fluctuations, a diversified bond fund is a simple starting point. If you need the money in one to three years, shorter-term bonds or Treasury bills are safer because they are less sensitive to interest rate changes.

Many homeowners use bonds as part of a larger mix: some money in stocks for growth, some in bonds for stability, and some in savings for emergencies. A common rule of thumb is to hold your age in bonds and the rest in stocks — so a 50-year-old might hold 50% bonds and 50% stocks — but this is just a starting framework, not a rule.

If you have a mortgage, bonds can work well for money beyond your down payment and emergency fund. They provide income without the volatility of stocks, and they do not tie up your money the way a second mortgage or home improvement loan would. Start small, learn how your chosen bonds or funds behave over a few months, and add more as you become comfortable.

Frequently Asked Questions

Can I lose money on a bond?

Yes, in two ways. If you sell before maturity and interest rates have risen, the bond is worth less than you paid. If the borrower defaults (fails to pay), you lose some or all of your principal. Treasury bonds have virtually no default risk. Corporate and municipal bonds carry real default risk, though it is usually small for well-established issuers. Bond funds can also drop in value when interest rates rise.

What is the difference between a bond and a CD?

A CD (certificate of deposit) is a savings product offered by banks; you lend money to the bank for a fixed term and get a may provide interest rate. A bond is a loan to a government or company. CDs are insured by the FDIC up to $250,000, so they carry almost no risk. Bonds are not insured and can lose value if interest rates rise or the issuer defaults. Bonds typically pay higher interest than CDs, especially if you buy corporate bonds.

Should I buy individual bonds or a bond fund?

Start with a bond fund if you have less than $10,000 to invest or do not want to research individual bonds. Funds are simpler, more diversified, and easier to sell. Buy individual bonds if you have enough money to buy several, plan to hold them until maturity, and want to know exactly what you will receive. Many investors do both: a core holding in a bond fund plus a few individual Treasury bonds for stability.

Do I have to pay taxes on bond interest?

Yes, unless the bond is tax-exempt. Interest from Treasury bonds is taxed at the federal level but not by most states. Interest from municipal bonds is usually tax-free at both federal and state levels if you live in the issuing state. Corporate bond interest is taxed as ordinary income. Holding bonds in a tax-advantaged account like an IRA avoids these taxes until you withdraw the money.

What happens to my bonds if interest rates drop?

If you own individual bonds, nothing changes — you still get the same interest payments and your principal back at maturity. If you own a bond fund, the fund's share price rises because existing bonds paying higher interest become more valuable. You could sell at a profit, but if you hold the fund, the price gain is just a paper gain unless you sell.