The Federal Government Borrows From Domestic and Foreign Investors

The federal government borrows money by selling Treasury securities — bonds, notes, and bills that promise to pay back the money with interest. These are not loans from a bank in the traditional sense. Instead, the government sells these securities to whoever wants to buy them: individual investors, pension funds, corporations, foreign governments, and the Federal Reserve itself. The buyer lends the money; the government promises to repay it on a set date.

The largest single holder of U.S. Treasury securities is the Federal Reserve, the nation's central bank. The second-largest holders are foreign governments and central banks, particularly China and Japan. After that come American pension funds, mutual funds, insurance companies, and individual investors who buy Treasury bonds through brokers or directly from the government.

This system has worked for decades because Treasury securities are considered the safest investment in the world — backed by the U.S. government's power to tax and its history of always paying its debts. As long as investors believe the government will repay, they keep buying, and the government can keep borrowing.

Key Takeaways

  • The federal government borrows by selling Treasury securities (bonds, notes, and bills) to investors worldwide, not by taking out traditional bank loans.
  • The Federal Reserve holds the largest amount of Treasury securities, followed by foreign governments like China and Japan, then American pension funds and individual investors.
  • Investors buy Treasury securities because they are considered extremely safe and pay a may provide interest rate set by the government.
  • The government must pay back every Treasury security on its maturity date, which is why the national debt keeps growing as old securities are replaced with new ones.
  • If investors lose confidence that the government will repay, they stop buying Treasury securities, which forces the government to offer higher interest rates to attract new buyers.

How Treasury Securities Work as Government Loans

When you buy a Treasury bond, you are lending money to the federal government. The government sets the interest rate it will pay you and the date it will repay the full amount. A 10-year Treasury note, for example, pays you interest every six months for ten years, then returns your original investment on the maturity date.

The government does not choose individual lenders or negotiate terms with each buyer. Instead, the Treasury Department holds auctions where securities are offered at a set price and interest rate. Investors bid on how many they want to buy. If demand is high, the government can offer a lower interest rate and still sell all the securities. If demand is low, the government must raise the interest rate to attract buyers.

This auction system means the interest rate on Treasury securities reflects what investors think about the government's ability to repay. When investors are confident, rates stay low. When they worry about default or inflation, they demand higher rates as compensation for the risk.

Why Foreign Governments and Central Banks Buy U.S. Treasury Securities

China, Japan, and other countries hold hundreds of billions of dollars in U.S. Treasury securities for practical reasons, not as a political favor. These securities are liquid — meaning they can be sold quickly if the country needs cash — and they pay interest. For a foreign central bank, holding Treasury securities is a standard way to store wealth and manage currency exchange rates.

Foreign governments also buy Treasury securities because they need to hold U.S. dollars as part of their foreign exchange reserves. Keeping dollars in a checking account earns nothing; buying Treasury securities earns interest while keeping the dollars safe. The size of these holdings fluctuates based on each country's trade surplus with the United States and its overall economic strategy.

The fact that foreign governments hold large amounts of Treasury securities sometimes raises concerns about whether they could use that power against the United States. In practice, this risk is limited: selling a large amount of Treasury securities would crash their value, hurting the seller as much as the buyer. Foreign governments are locked into holding these securities by the same logic that makes them attractive — they are the safest place to store dollars.

The Role of the Federal Reserve in Buying Treasury Securities

The Federal Reserve, the nation's central bank, buys Treasury securities as part of its job managing the money supply and interest rates. When the Fed buys securities, it injects money into the economy, which lowers interest rates and encourages borrowing and spending. When it sells securities, it removes money from the economy, which raises interest rates and discourages borrowing.

During economic crises, the Fed often buys large amounts of Treasury securities to keep interest rates low and keep credit flowing. After the 2008 financial crisis and again during the COVID-19 pandemic, the Fed's holdings of Treasury securities grew dramatically. These purchases are temporary — the Fed eventually sells the securities back or lets them mature, returning the money to the Treasury.

The Fed's purchases are not the same as the government borrowing from itself, though they can look that way on paper. The Fed is independent from the Treasury Department and makes its own decisions about when to buy and sell. However, when the Fed holds Treasury securities, the interest payments on those securities go back to the Treasury, which is one reason the Fed's actions affect the government's finances.

Individual and Institutional Investors in Treasury Securities

American pension funds, mutual funds, insurance companies, and individual investors hold a large share of Treasury securities. These investors buy them because they need a safe place to store money that will be returned on a predictable date. A pension fund managing retirement money for thousands of workers cannot afford to take big risks, so Treasury securities are a natural choice.

Individual investors can buy Treasury securities directly from the government through TreasuryDirect, a website run by the Treasury Department. You can buy as little as $100 worth, and the government holds the securities for you electronically. You can also buy Treasury securities through a bank or broker, though you may pay a fee.

The interest rates on Treasury securities are lower than what you might earn from a corporate bond or a stock investment, but that is the trade-off for safety. If you need to know that your money will be returned on a specific date with a may provide interest rate, Treasury securities deliver that certainty.

What Happens When Investors Stop Buying Treasury Securities

The federal government's ability to borrow depends entirely on investors' willingness to buy Treasury securities. If investors lose confidence — because they fear the government will not repay, or because they expect inflation to erode the value of the repayment — they stop buying, or they demand much higher interest rates as compensation.

This has happened in other countries. When Greece's government faced a debt crisis, investors stopped buying Greek government bonds, or demanded interest rates so high that borrowing became impossible. The government then had to cut spending sharply or seek a rescue from other countries.

The United States has not faced this problem because the dollar is the world's reserve currency and the U.S. government has never defaulted on its debt. However, if the national debt grows so large that investors begin to doubt the government's ability to repay, interest rates on Treasury securities would rise, making it more expensive for the government to borrow. This would force difficult choices about spending and taxes.

The Cycle of Borrowing and Repayment

The federal government does not borrow once and then repay. Instead, it is constantly selling new Treasury securities to pay off old ones that are maturing. If the government spends more than it collects in taxes, it must borrow the difference. If it spends less than it collects, it can use the surplus to pay down debt.

In recent decades, the federal government has spent more than it collects almost every year, which means the total amount of Treasury securities outstanding keeps growing. The national debt is the sum of all Treasury securities that have not yet matured — money the government has borrowed and not yet repaid.

This does not mean the government is in when ready danger. Governments can carry debt for a long time as long as investors believe they will repay. However, if debt grows faster than the economy, eventually the interest payments become so large that they crowd out spending on other priorities, or the government must raise taxes sharply.

Frequently Asked Questions

Can the federal government just print money instead of borrowing?

The federal government can instruct the Federal Reserve to print money, but this causes inflation — the value of each dollar falls as more dollars chase the same amount of goods. Borrowing through Treasury securities spreads the cost over time and lets investors decide whether the interest rate is worth the risk. Printing money to pay for spending is a last resort used only in extreme circumstances.

What happens if China stops buying U.S. Treasury securities?

If China sold its Treasury holdings, the price of Treasury securities would fall and interest rates would rise, making borrowing more expensive for the government and for American businesses and homeowners. However, China would also lose money on the sale, and it would have to find somewhere else to store its dollars. Other investors would likely step in to buy the securities at the higher interest rate.

Do I have to pay taxes on the interest I earn from Treasury securities?

Yes, the federal government taxes the interest you earn on Treasury securities as ordinary income. However, Treasury securities are exempt from state and local income taxes. This makes them slightly more attractive than corporate bonds in high-tax states, though the interest rate is usually lower.

Why does the government not just borrow from the Federal Reserve instead of selling to the public?

The Federal Reserve does buy Treasury securities, but it cannot be the only buyer. If the Fed bought all new Treasury securities, it would be printing money to finance government spending, which would cause rapid inflation. By selling to the public and foreign investors, the government ensures that real savings — money people have earned and chosen to lend — are being used to finance spending, not newly created money.

What is the difference between Treasury bonds, notes, and bills?

Treasury bills mature in one year or less, Treasury notes mature in 2 to 10 years, and Treasury bonds mature in 20 to 30 years. The longer the maturity, the higher the interest rate, because investors are taking on more risk that inflation or other factors will erode the value of their money over time. All three are equally safe in terms of the government's promise to repay.