Treasury bonds, notes, and bills are critical vehicles for the federal government to raise money for public expenses and manage the national debt.

If the US government paid off its debt, it could disrupt the entire bond market, as Treasury bonds are among the most common bonds for investors and the majority of the national debt is in bonds.

Investors collectively owned $28T in US Treasury securities as of 2025.

Tax policy can have a direct impact on the national debt, with past presidents' changes to tax codes inflating the deficit.

The national debt consists of public debt and intragovernmental debt.

Nearly 70% of the US government’s debt is domestic

This includes intragovernmental holdings like the Social Security Trust Fund and investments from US citizens, banks, and mutual funds. About 30% is foreign-held, with countries like Japan and China as major creditors, investing in US Treasury securities due to their perceived safety.

Investors can buy three main types of bonds: government, corporate, and municipal

Each type has variations of its bond offerings with different interest rates, loan lengths, maturity dates, and terms. Each type also carries its own risks and rewards.

For everyday Americans, a relatively high national debt can lead to higher interest rates on financial products such as mortgages.

The federal deficit is the gap between what the US spends and what it collects.

The US government is legally allowed to borrow money from the Social Security Trust Fund surpluses as long as it issues Treasury bonds to the Trust Fund in return and repays those bonds with interest when Social Security needs the money to pay benefits.

The bond market is where bonds and other debt securities are traded

Bonds are fixed-income investments allowing individuals to lend a specific amount of money to a large entity, like a government or corporation, for a set amount of time in return for interest paid out over the life of the loan. The bond market is widely considered a key economic barometer.

What are Treasury yields?

Treasury yields are the interest rates that the US government pays to borrow money for different lengths of time. Specifically, Treasury yields are interest rates on US government debt. They reflect economic outlooks and inflation expectations. Learn more about Treasury yields here.

The US debt ceiling is the threshold Congress sets for federal borrowing.

About 80% of US debt is held by domestic and foreign investors.

See a chart showing how much the US federal government pays in interest on its debt.

There are three main ways to start investing in the bond market

Invest in the boind market through a brokerage, mutual fund or ETF, or the US government. Each has different steps and terms to follow, from starting rates to opening specific accounts. Some bonds are relatively easy to purchase, but the process differs depending on the type of bond you want.

The US has carried debt since 1791

After the Revolutionary War, the US owed $75M to nations like France. Debt builds when spending exceeds revenue, funding programs, wars, and economic recovery efforts. Most debt is domestic, like Social Security bonds, with foreign nations also holding a share.

Local governments borrow money for long-term projects by issuing municipal bonds

When a city needs to build a school, a road, or a water treatment plant, it usually issues a municipal bond—borrowing money from investors to be paid back over time. The market for these bonds now exceeds $4T.

Bond yields are the returns investors earn from a bond's interest—and they're a key economic barometer.

Companies sometimes issue corporate bonds to raise capital

These bonds offer investors regular interest payments in addition to the return of the principal amount at maturity. They allow companies to raise capital without losing ownership.

Revenue from tariffs goes to the US Treasury's general fund.

Are I-Bonds a good investment?

I-Bonds are savings bonds issued by the US government that can help protect savings from inflation. While that sounds positive, I-Bonds have a few disadvantages, too—for instance, these bonds have to be held for at least a year before you can cash out.

Series I bonds are a form of government savings bonds created to shield your investments from inflation

Specifically, I bonds earn interest from both a fixed rate and an inflation rate. This article explains who might benefit from investing in I Bonds—for instance, people seeking to invest savings they do not need to access in the near future.

Individual income taxes are the federal government's primary revenue source, see a tracker that breaks down where the rest of the budget comes from

The US government historically makes nearly half of its total revenue last year from individual income taxes. But the US makes also makes money from a variety of other sources, including Medicare taxes and corporate income taxes. However, the federal government has run a deficit since 2001—reaching a peak of $3.13T in 2020.

The federal government has spent more money annually than it has collected every year since 2022.

Track how much the US government has spent on bailouts.

The national debt is the total amount the US government owes its creditors

This US Treasury page explains what the national debt is, how it accumulates from annual deficits, and why rising debt can affect interest costs, fiscal flexibility, and long-term economic stability.

When the US hits the debt ceiling, the Treasury uses emergency measures to avoid default

After the US reached its debt ceiling in January 2023, the Treasury deployed "extraordinary measures" to keep paying obligations. This article explains the steps, how they work, and why they last only for a limited time. (Some readers may experience a paywall.)

Investing in bonds comes with a few risks

Think: changes in interest rates that impact the bond’s value, or a bond issuer completely defaulting on a loan. There are steps investors can take to lower their initial and future risk when investing in the bond market, such as checking a company's bond rating before investing.

The current federal budget, deficit, and debt, in charts

The US Treasury regularly publishes updated data on the federal budget, and this site hosts visualizations of that data. See reports on spending, revenues, deficits, and where the national debt stands.

The term 'securities' refers to different types of investments, such as stocks or bonds.

The US Government sells two types of savings bonds: EE bonds and I bonds

EE bonds have fixed interest rates that the buyer is informed of when they purchase the bond. I bonds, however, earn a rate that can change every six months. A comparative chart details the most significant differences between EE bonds and I bonds.

See how local, state, and federal governments divide the cost of public services

Federal, state, and local governments share responsibility for funding public services. Education, roads, and social programs are funded through a complicated mix of taxes and intergovernmental transfers.

Explore a database that shows how the US national debt changes over a 24-hour period.

Use this calculator to find out the programs and services your federal income taxes fund.

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Stablecoins like USDC are backed by real assets including US Treasurys and cash

While Tether (USDT) is primarily backed by US Treasury bills (64.9%), USDC is mostly backed by US Treasury repurchase agreements (49.6%). USDC also goes by the name Circle, given that it is owned by the company Circle Internet Financial.

Some argue that the rising US national debt has become more important in recent months.

The debt ceiling is a legal cap on how much money the US government can borrow.

Investors trading their municipal bonds can't use the same method to purchase them

Instead, they’ll have to go through the secondary market, which has its own set of rules and steps to follow. An illustrated, explanatory video can help you learn how to sell your municipal bonds for the best market value.

The New York Stock Exchange wouldn't have been made if not for municipal bond sales

The Funding Act of 1790 nationalized and consolidated the debt held by the 13 colonies to be sold off in the form of bonds.

The US and Denmark are the only two countries known to abide by a predetermined borrowing limit.

Alexander Hamilton consolidated the states' debts, implemented a tax system, and established a national bank.

Minting a coin that can pay off the federal debt has been proposed as a quick fix to rampant borrowing.

The federal debt ceiling 101

The debt ceiling periodically takes center stage as Congress debates whether to increase or suspend this self-imposed limit on its borrowing authority. Learn the basics on this crucial feature of US fiscal policy with this Q&A.

One in seven US tax dollars is collected by local governments

Local governments collect about $886B each year to support education, infrastructure, and public health. Roughly three-quarters of this funding comes from property taxes, with the rest sourced from sales, excise, and income taxes.

Some economists argue that the national debt is not a critical concern.

Does Social Security contribute to the national debt?

Social Security operates through a trust fund built from payroll taxes. When costs outpace revenue, as they have since 2021, the program redeems Treasury bonds to cover the gap. To repay these bonds, the government often borrows more money, indirectly adding to the national debt and impacting fiscal policy.

About one dollar in every six that are owed to the federal government aren't paid each year

That adds up to close to $1T in what's known as the "tax gap." Read a breakdown on the main drivers of tax evasion (distinct from legal tax avoidance) in the US.

Federal spending falls into 2 categories: mandatory and discretionary

Federal spending is split between mandatory programs, funded automatically by law, and discretionary programs, funded through annual appropriations. This video breaks down which major programs fall into each category and why the distinction matters.

Hollywood helped fund American military activity by boosting bond sales

To help fund its WWI military activity, the US introduced Liberty Bonds—government-issued debt marketed directly to the public. Starting at $50, the campaign targeted working Americans and offered Thrift Stamps to make bond-buying more accessible. Hollywood led the charge, with stars like Charlie Chaplin and Mary Pickford boosting bond sales.

What are baby bonds?

In 2008, Hillary Clinton proposed giving every US newborn a $5,000 government-funded trust, often called a “baby bond,” to help low-income families build long-term wealth. Supporters said it could reduce wealth inequality, while critics argued existing programs like the Child Tax Credit offered similar benefits.