What government bonds and securities are

A government bond is a loan you make to a government — federal, state, or local. When you buy a bond, you give money to that government now, and it promises to pay you back with interest on a set date. A security is the official certificate or digital record that proves you own that bond and have the right to that repayment.

Think of it like lending money to a friend: you hand over $1,000 today, they sign an agreement saying they will pay you back $1,050 in one year, and that signed agreement is your security. With government bonds, the "friend" is the U.S. Treasury, your state, or your city, and the agreement is a legally binding contract backed by the government's power to collect taxes.

Governments sell bonds to raise money for specific purposes — building roads, funding schools, paying for military operations, or covering budget shortfalls. They choose bonds over taxes because they can spread the cost over time and borrow only what they need right now.

Key Takeaways

  • Government bonds are loans to a government that pay you back with interest on a specific date, and the certificate proving you own that bond is called a security.
  • The U.S. Treasury sells federal bonds in three main types: Treasury bills (under one year), Treasury notes (two to ten years), and Treasury bonds (20 to 30 years).
  • State and local governments sell municipal bonds, which often have tax advantages but carry slightly higher risk than federal bonds.
  • The longer you lend money to a government, the higher the interest rate it typically offers you, because you are giving up access to your cash for longer.
  • You can buy government bonds directly from the government or through a bank or investment firm, and you can sell them before maturity if you need the cash.

Federal bonds sold by the U.S. Treasury

The U.S. Treasury Department sells three types of federal bonds, each with a different time frame. A Treasury bill (or T-bill) matures in less than one year — typically four weeks, 13 weeks, or 26 weeks. A Treasury note matures in two to ten years. A Treasury bond matures in 20 or 30 years.

The longer the maturity, the higher the interest rate the Treasury offers. A 30-year Treasury bond pays more interest than a 13-week T-bill because you are locking up your money for much longer. The Treasury holds auctions where it sets the interest rate and sells bonds to whoever bids. You can buy them directly through TreasuryDirect.gov, which is the government's own sales platform, or through a bank or brokerage firm.

Federal bonds are considered the safest investment available because the U.S. government has never defaulted — failed to pay back — a bond. The government can always raise money through taxes or print currency, so the risk that you will not get your money back is extremely low. This safety is why federal bonds typically pay lower interest than corporate bonds or municipal bonds.

Municipal bonds issued by states and cities

States, cities, and counties also sell bonds to raise money for local projects — schools, water systems, highways, public buildings. These are called municipal bonds or "munis." They work the same way as federal bonds: you lend money, the government pays you back with interest on a set date.

The main difference is tax treatment. Interest you earn on municipal bonds is usually exempt from federal income tax, and often exempt from state and local income tax too if you live in the state that issued the bond. This tax break makes municipal bonds attractive to people in high tax brackets, even though they pay slightly lower interest rates than federal bonds.

Municipal bonds carry slightly more risk than federal bonds because cities and states can face budget crises or economic downturns. A few have defaulted on bonds in the past, though this is rare. Before buying a municipal bond, you can check its credit rating — a score that tells you how likely the government is to pay you back. Rating agencies like Moody's and Standard & Poor's publish these ratings.

How interest rates and maturity affect bond prices

When you hold a bond until it matures, you get back exactly what you paid plus the agreed interest. But if you sell a bond before maturity, its price changes based on what interest rates have done since you bought it.

Here is why: if you bought a bond paying 3 percent interest, and new bonds are now paying 5 percent, your old bond is worth less because it pays less. Someone buying it from you would rather have the new 5 percent bond, so you have to sell yours at a discount. The opposite happens if interest rates fall — your old bond paying 3 percent becomes more valuable because new bonds pay only 2 percent.

This matters if you need cash before your bond matures. You might have to sell at a loss if interest rates have risen. It also matters if you are thinking about buying bonds — when interest rates are expected to rise, bond prices typically fall, so waiting might get you a better price.

Where to buy government bonds and securities

You have three main routes to buy federal bonds. TreasuryDirect.gov is the U.S. Treasury's own platform, and it is free to use. You set up an account, bid in Treasury auctions, and hold your bonds electronically. There are no fees, and you can buy as little as $100.

A bank or brokerage firm like Fidelity, Vanguard, or Charles Schwab can also sell you Treasury bonds. They charge a small fee or commission, but they handle the paperwork and may offer more guidance. This route is useful if you want to buy bonds between auctions or if you prefer working with a person.

For municipal bonds, you typically go through a bank or brokerage because they are not sold through a single government platform. Your broker can show you bonds from different cities and states, help you compare interest rates and credit ratings, and handle the purchase.

Risks and reasons bonds might not be right for you

Government bonds are generally safe, but they are not risk-free. Interest rate risk means that if you sell before maturity and rates have risen, you lose money. Inflation risk means that if inflation rises faster than your bond's interest rate, your money loses buying power — you get back dollars that are worth less than when you started.

Bonds also pay less interest than stocks historically do over long periods. If you are young and do not need the money for decades, bonds might not grow your wealth as fast as a diversified stock portfolio. Bonds are better for people who need steady income, want to preserve capital, or are nearing retirement.

Municipal bonds carry the risk that a city or state could face a budget crisis and default, though this is uncommon. Before buying a municipal bond, check its credit rating and understand the issuer's financial situation.

How bonds fit into a savings or investment plan

Bonds are often used as a stable, lower-risk part of a larger investment mix. A common approach is to hold some bonds and some stocks — the bonds provide steady income and cushion losses when stock prices fall, while stocks provide growth over time. The older you are or the sooner you need the money, the higher the percentage of bonds typically makes sense.

Bonds are also useful for money you know you will need on a specific date. If you have a child starting college in five years, you could buy a five-year Treasury note and know exactly how much you will have when it matures. This certainty is valuable when you are planning for a known expense.

Some people use bonds as an emergency fund alternative. A Treasury bill that matures in 13 weeks is nearly as liquid as a savings account — you can get your cash back quickly — but it pays more interest than most savings accounts currently do.

Frequently Asked Questions

Can I lose money on a government bond?

If you hold the bond until it matures, you get back exactly what you paid plus interest — no loss. If you sell before maturity and interest rates have risen, the bond's price falls and you lose money. Federal bonds are very unlikely to default, but municipal bonds carry a small risk that the issuer could fail to pay.

What is the difference between a bond and a stock?

A bond is a loan — you lend money and get it back with interest. A stock is ownership — you own a small piece of a company and share in its profits or losses. Bonds are generally safer but pay less; stocks are riskier but can grow faster over time.

Do I have to hold a bond until it matures?

No. You can sell a bond on the secondary market before maturity, though the price you get depends on current interest rates. If rates have risen, you will sell at a discount. If rates have fallen, you may sell at a premium.

Are Treasury bonds better than municipal bonds?

Treasury bonds are safer because the federal government backs them. Municipal bonds offer tax advantages that can make them more valuable if you are in a high tax bracket. The right choice depends on your tax situation, risk tolerance, and whether you need the tax break.

How much interest will I earn on a government bond?

Interest rates change based on market conditions and the bond's maturity. You can see current rates on TreasuryDirect.gov for federal bonds or through your broker for municipal bonds. Longer-maturity bonds typically pay higher rates than shorter ones.