What Is the National Debt, and Who Was It Really For?

Home › Explainers › National Debt · Undastandable Money Explained · September 2026

The United States owes more than $40 trillion. It crossed that line in August, and almost nobody running for office this fall wants to talk about it.

They should. This year the government is paying about as much in interestThe rent on money already borrowed. It buys nothing new. as the entire military budget costs, and that budget just reached about $1 trillion for the first time. In September, the people who lend America money started charging more for it, and that cost is already reaching mortgages and car loans.

Most debt coverage leaves out one thing. The debt did not just happen to us. Some of the borrowing paid for real emergencies that ended. The biggest piece that never ends was a choice: tax cuts made permanent, weighted toward the people who needed them least, and paid for with borrowed money. You are paying interest on it.

What's in the rest of this article?

• The bill you already pay — interest, and how the bond market is now pushing it into your loans.
• What the debt actually is — deficits, bonds, and who holds them.
• The hidden tax nobody voted for — how a weaker dollar takes the most from people with the least.
• How it got this big — twenty-five years, from nearly balanced to $40 trillion.
• The cause built to never switch off — who got the tax cuts, and who paid for them.
• 2026 on the credit card — a war, a promise, and tariffsA tax on goods brought in from other countries, usually paid at the border by the importer. the Supreme Court threw out.
• The bond market's warning — what lenders are saying with their money.
• The five ways out — and the catch in each one.
• What you can do — names, votes, and a check you can run tonight.

The bill you already pay

Interest is the rent on money already borrowed. It buys nothing new. No road, no school, no soldier.

Through August, the government paid $1.02 trillion in interest this fiscal year, according to the Peterson Foundation's tracker. That is the first time the yearly bill has passed a trillion dollars. The White House budget office calls this year's military budget a historic $1 trillion, the first time it has reached that mark. So the interest bill is now about the same size as the whole military budget.

Think of it like a family that pays more on its credit cards each month than it spends on groceries. The groceries still need buying. So the family borrows more, and next month's card bill is bigger again.

The Committee for a Responsible Federal BudgetCommittee for a Responsible Federal Budget — a nonprofit budget watchdog that backs neither party., a group that tracks the budget and backs neither party, did the math per family. Interest on the debt works out to about $7,900 per household today. On the current path it reaches about $17,000 per household by 2036.

You do not get that bill in the mail. You pay it in three quieter ways. Part of your taxes goes to interest instead of services. Part of it shows up when programs you count on get squeezed to make room. And part of it now shows up in the rate on your next loan, which is where the story turned this month.

Justin Wolfers, an economist at the University of Michigan, warned in a MeidasTouch report in August that when the government borrows this much, interest rates can rise across the economy, making mortgages, car loans and credit card debt more expensive for everyday Americans.

That is no longer a warning about the future. By early September, MeidasTouch reported, the 10-year Treasury rate had climbed from under 4% to nearly 4.8% since the Iran war began, and mortgage rates were marching toward 7%. By September 28, the 10-year rate had closed at 5.24% and the 30-year at 5.56%, according to the Federal ReserveThe U.S. central bank. It sets short-term rates and can buy or sell government bonds.'s own daily table. On September 29 the 30-year closed at 5.59% by the Treasury's table, and CNBC reported it touched 5.61% during the day, its highest since June 2002.

What the national debt actually is

Picture a bathtub. Taxes pour in through the faucet. Spending drains out through the pipe: Social Security, Medicare, the military, interest and everything else. When more drains out than pours in, the gap is that year's deficitThe gap in one year when the government spends more than it takes in..

The government fills the gap by borrowing. It sells IOUs called Treasury bondsAn IOU the U.S. government sells: you lend it money now, and it pays you back later with interest.. A bond is a promise: lend us $1,000 now and we will pay you back later, with interest along the way.

The national debtEvery unpaid yearly gap stacked up — the total the government still owes. is every one of those gaps, stacked up over decades and not yet paid back.

Treasury counts it to the penny every business day. On September 28, 2026, the total was $40,102,185,696,865.37. For the first eleven months of this fiscal year, the government took in about $4.8 trillion and spent about $6.8 trillion. That is a $2.0 trillion gap in under a year.

That $40 trillion total has two parts, and the difference matters.

About $7.7 trillion is the government owing itself. The biggest piece is the Social Security trust fundA government savings pile, often invested in Treasury IOUs. Social Security’s is the biggest.. For decades Social Security collected more than it paid out, and the law required it to lend the extra to the Treasury. Those IOUs are real, and the Treasury has to pay them back. Our Social Security explainer tells that story in full.

The other $32.4 trillion is owed to outside lenders: banks, pension funds, mutual funds, 401(k)s, insurance companies, the Federal Reserve, and foreign buyers. This is called debt held by the publicThe part of the debt owed to outside lenders — banks, funds, the Fed, foreign buyers — not the government owing itself.. Most economists treat it as the number that counts, because it is the part the government has to keep borrowing in the open market to roll over.

The whole economy produces about $32.6 trillion a year. So what America owes outside lenders is now about as big as everything the country makes in a year. The last time it was that high was the end of World War II.

Who we actually owe

You will hear that China owns America. It does not.

Foreign buyers hold about $9.25 trillion of U.S. debt, according to the Treasury's July count. Japan is the biggest foreign lender at about $1.10 trillion. The United Kingdom is next at about $1.00 trillion. China is third at about $618 billion, its lowest in years. China's slice is less than one-sixtieth of the total.

Most of the debt is owed to Americans. It sits in pension funds, bank accounts, retirement plans and the Social Security trust fund.

That sounds comforting until you swap in what it really means. "We owe it to ourselves" means the government owes it to your retirement money. It owes it to the pension fund that pays your parents. It owes it to the Social Security checks you have paid into with every paycheck.

So when someone says the debt can always be handled by printing money, ask who holds the dollars that would lose value. Much of the answer is ordinary people's savings.

The Social Security piece is coming due now. The trust fund is paying out more than it takes in, so it is cashing in its IOUs. To pay them, the Treasury borrows from the public, at today's higher rates. The 2026 Trustees Report says the retirement fund runs out in the last three months of 2032. After that, unless Congress acts, checks shrink to about 78 cents on the dollar.

That is why Social Security keeps showing up in every debt fight. It is one of the few big numbers Congress can shrink with one vote, and the people it would shrink are the people least able to fight back.

Borrowing to pay interest on money we already borrowed

Picture a snake eating its own tail. That is the loop the budget is in now.

The government runs a $2 trillion gap. About half of that gap is interest. So the Treasury sells new bonds partly to pay interest on old bonds. The new bonds carry interest too. Next year's interest bill is bigger, so next year's borrowing is bigger.

In plain steps: borrow money, owe interest, borrow to pay the interest, owe more interest.

The Committee for a Responsible Federal Budget warned in May that, on its projection, the average interest rate the government pays would pass the economy's growth rate by 2029. Once that happens, the debt grows faster than the country's income even if Congress passes nothing new at all. The loop feeds itself.

The United States has one escape hatch you do not. It borrows in dollars, and the Federal Reserve can create dollars. When the Fed buys government bonds with newly created money, the Treasury has an extra buyer. That makes a Greece-style default, where a country simply cannot pay, very unlikely.

But making money is not free. If more dollars chase the same goods, each dollar buys less. The cost moves from the tax bill to the price tag. You pay at the store instead of on April 15.

Right now the Fed is doing the opposite. On September 16 it raised its key rate to between 3.75% and 4%, its first increase since 2023, because prices are rising too fast. Higher Fed rates fight inflationPrices rising across the economy, so each dollar buys less.. They also raise what the government pays on every short-term bond it sells. The loop gets tighter from both ends.

The hidden tax nobody voted for

When borrowing and money creation make prices rise, it works like a tax. Nobody passes it. Nobody signs it. It just shows up at the register.

It does not hit everyone the same. If you own a house, stocks or a retirement account, rising prices can lift what you own. Your wealth has a shield.

If you live on a paycheck and keep your money in checking, you have no shield. Your dollars are like an ice cube left on the counter. They are still there, but every week there is less of them. And most of your paycheck goes to food, rent, gas and utilities, the things that rise fastest.

Economists at the Federal Reserve Bank of Minneapolis and at Stanford have found the same pattern: inflation takes a bigger bite from people with less. That makes it the opposite of a fair tax. It is closer to a sales tax on being broke.

Ray Dalio, who built the world's largest hedge fund, has been warning about this for years. Dalio said in January that his grandchildren and great-grandchildren, not yet born, will be paying off this debt in devalued dollars.

So the phrase fits. The debt works as a hidden tax nobody voted for.

But somebody did vote. Every dollar of this borrowing passed Congress in a recorded vote and was signed by a president. You chose those people. The tax is hidden, but the people who created it are not. Their names are on the roll calls, and later in this article you will see how to look them up.

How it got this big

To see where a number this big came from, find the last time the books were close to even. Then count forward.

That moment was around 2001. The government had just run four straight surpluses, from 1998 through 2001. Debt owed to outside lenders had fallen to about $3.3 trillion, roughly a third of the economy. In January 2001 the Congressional Budget OfficeCongressional Budget Office — the nonpartisan scorekeeper for Congress on budget and economic effects. projected trillions more in surpluses over the next ten years.

Today that same debt is about $32.4 trillion. This is what filled the gap, in order.

Two wars on borrowed money. Brown University's Costs of War project puts the wars in Afghanistan, Pakistan, Iraq and Syria at about $4.4 trillion through 2022, and about $6.6 trillion once future care for veterans is counted. No tax was raised to pay for them.

Tax cuts in 2001 and 2003. They were written to expire. Most of them were later made permanent.

A drug benefit with no money behind it. The 2003 Medicare prescription benefit was sold to Congress at about $400 billion. Within months, the estimate became $534 billion. No new tax was created to pay for it.

The 2008 crash. Wall Street was allowed to take on more risk in the years before. Laws signed in 1999 and 2000, under a Democratic president, lowered the old walls between banks, brokers and insurers and kept many derivatives away from normal oversight. In 2004 the Securities and Exchange Commission let the brokerage arms of the five biggest investment banks apply to use their own math models to work out part of their safety cushions. By 2008 two of the five were gone. The rescue and the recession that followed produced the biggest deficits since World War II.

The pandemic. About $3.6 trillion in relief under President Trump and $2.1 trillion more under President Biden. Most of it passed with votes from both parties while the economy was shut down.

The 2017 tax cuts, and then the 2025 law that made them permanent.

And under all of it, interest, compounding the entire time.

Both parties are in that list. That part is true. But the list hides the most important difference between its items, and that difference is the next section.

The cause built to never switch off

Emergency spending has an off switch. The pandemic money was enormous, and almost all of it ended. The checks stopped. The programs closed. On a chart it looks like a spike that falls back down.

A permanent tax cut has no off switch. It takes revenue out of the Treasury every single year, forever, and the borrowing it causes piles up interest behind it.

The 2017 tax cuts were written with an off switch. Most of the cuts for individuals were set to expire at the end of 2025. In 2025, Congress and President Trump removed the switch. The law they passed, which supporters called the One Big Beautiful Bill, made the main 2017 cuts permanent. The Congressional Budget Office and the Joint Committee on Taxation put the whole law's addition to the deficit at about $4.1 trillion over ten years, counting the extra interest.

So who got the money?

The Institute on Taxation and Economic Policy found that more than 70% of the net tax cuts go to the richest fifth of Americans. Less than 1% goes to the poorest fifth. Jon Whiten, the group's deputy director, told CBS News in July that the top 1% are in line to get $1 trillion in tax cuts from the law over a decade.

And how was part of it paid for? The same law cut about $1.1 trillion from health care over ten years, most of it from MedicaidThe joint federal-state health program for people with low incomes., and about $187 billion from SNAPSupplemental Nutrition Assistance Program — food help, once called food stamps. and related nutrition programs. CBS reported in July that SNAP participation had already dropped by more than 4 million people. Medicaid enrollment is expected to fall by 5 million to 10 million people starting in 2027.

The Tax Policy Center ran the numbers for this year. The top 1% get an average tax cut of about $75,000. The top 0.1% get about $286,000 each. For the poorest fifth of households, the tax changes raise income by less than 1%, and that is before the Medicaid and food cuts land on the same families.

Put those side by side. Health care and groceries were cut at the bottom. Tax cuts were locked in at the top. The gap between the two was borrowed. That borrowed gap is part of the $40 trillion, and every taxpayer pays interest on it, including the families who lost coverage.

Even the corporate side shows it. Corporate income tax collections are down about $95 billion this fiscal year, a 24% drop, according to the American Action Forum.

Supporters say the cuts cost nothing, because they measure against a world where the cuts were always permanent. That is an accounting choice. The Treasury's bank account does not care which yardstick was used. The money that would have come back under the old law does not come back, and the hole is filled with borrowing.

Senator Patty Murray of Washington has called the Republican tax cuts the single biggest driver of the debt. Reason magazine, which quoted her, argues both parties share the blame. The numbers above point to the tax cuts as the one piece built to never end.

2026 on the credit card

This year added three more entries to the tab.

A war with no way to pay for it. The Iran war had cost $43.6 billion as of this month, the Pentagon's own estimate, Roll Call reported on September 18. The Pentagon has asked Congress for $67.1 billion in extra money, partly to cover those costs. No tax was raised to pay for any of it. Like Iraq and Afghanistan, it goes straight onto the debt. It also pushed oil prices up, which pushed inflation up, which is part of why interest rates are rising.

Tariffs sold as the fix. The administration said tariffs would bring in enough money to shrink the deficit. On February 20, the Supreme Court ruled 6 to 3 that the emergency law used for most of those tariffs never gave the president that power. By late July the government had paid back about $100 billion, according to a court filing reported by NBC News and Reuters. By August the American Action Forum counted about $110 billion, and customs collections fell sharply from May through August.

The painful part: research from Germany's Kiel Institute, reported by The Wall Street Journal, found that foreign exporters absorbed only about 4% of the tariff cost. Americans paid the rest in higher prices. So shoppers paid the tariffs, and the refunds went to importers.

A promise nobody priced. President Trump has floated $5,000 checks. Mick Mulvaney, his own former chief of staff, said on Fox Business that the real cost would be around $1.3 trillion, and that it would add to the debt, drive up inflation and push interest rates higher.

Meanwhile the man in charge of the borrowing is calm. Treasury Secretary Scott Bessent told CNBC in August that there is nothing magic about the $40 trillion number, and that the country can grow its way out.

Growth does help. But growing your way out means the economy has to grow faster than the interest piles up. The Committee for a Responsible Federal Budget says that stops happening by 2029.

The bond market's warning

The people who lend America money do not give speeches about it. They set a price. In September the price went up.

Long-term Treasury rates climbed to their highest levels in about two decades. MarketWatch, quoted by MeidasTouch on September 29, said the Treasury market was on the verge of one of its worst months in years. In August, a 30-year Treasury sale cleared at 5.216%, the highest for that kind of auction since 2001, and buyers were thinner than expected, according to the Committee for a Responsible Federal Budget. On September 29 the 30-year rate touched 5.61% during the day, CNBC reported, a level last seen in 2002.

The Treasury tried to calm things down. In August it announced it would double the size of some bond buybacksWhen the Treasury buys back some of its own bonds early, usually to manage the debt mix., and in September one buyback hit $6 billion, triple the usual, MeidasTouch reported. Rates kept rising anyway. Market analyst Charlie Bilello said Washington was considering using nearly $1 trillion of the Treasury's own cash to hold yields down, instead of cutting deficits.

Other forces are pushing rates up too: high oil prices from the war, stubborn inflation, and strong demand for money from companies building AI data centers. But put the pieces side by side. Record borrowing. More bonds to sell every month. An auction that drew weak demand. Buybacks that did not work. Warnings from the head of the biggest bank in the country. The evidence points one way: lenders want to be paid more to hold American debt, and the size of that debt is part of the reason.

The warnings are not coming from fringe voices. Jamie Dimon, who runs JPMorgan Chase, said in April that the way it is going now, there will be some kind of bond crisis. Jerome Powell, then chair of the Federal Reserve, said at Harvard in March that the level of the debt is not unsustainable, but the path is not sustainable, and that it will not end well if nothing is done fairly soon. The Congressional Budget Office's director, Phillip Swagel, wrote in February that its projections show a path that is not sustainable. Powell added that he was not predicting a market event any time soon. The warning is about the path, not about next week.

Moody's took away America's top credit rating in May 2025, the last of the big three agencies to do it.

That is the fear. The hope is real too.

After World War II, the debt stood at 106% of the economy. By the mid-1970s it was about 23%. Growth did most of the work, with steady budgets and some help from inflation. The dollar is still the world's main currency. Most of the debt is owed at home. A few rough years do not erase the faith people around the world have in this country. But faith is not free. The longer the loop runs, the more it costs to earn it back.

The five ways out, and the catch in each

Any plan to fix the debt has to go through one or more of these doors.

1. Raise taxes. The 2025 law went the other way at the top. Reversing the top-end cuts is the most obvious place to start, because that is where the money went.

1. Cut spending. Social Security, Medicare, Medicaid and interest already take up most of the budget. Even cutting everything else to zero would not close the gap. Cuts that land on health care and food fall on the people with the least room to absorb them.

1. Print money. You pay through inflation, and the people without assets pay the most. Push it far enough and prices run away.

1. Grow the economy. The healthiest door. But growth has to outrun the interest bill, and no one can order that into existence.

1. Tighten real waste and fraud. Medicaid is health care for tens of millions of people. It is not waste. But any program that big has billing errors, improper payments and scams. The answer is to find the leaks and close them, not to gut the program because part of it leaks. This door helps. It cannot carry the load alone.

The budget watchdogs, the CBO and investors like Dalio land on the same math: no single door does it. Dalio has called for a little bit of everything: more revenue, less spending, done gradually. A bipartisan commission proposed that blend in 2010. Washington walked away from it.

Any candidate who promises a painless fix is selling a sixth door that does not exist. Ask which of the five they would open, and who pays for it.

What you can actually do

That anger over borrowing to pay interest has somewhere to go. Seven things you can do, starting tonight:

1. Find your politicians and MAKE THEM ACCOUNTABLE. Not the famous ones on TV. Yours. Our Voter tool shows your House member, both senators and their records in one place.

1. Pull the receipts. Every vote on the 2025 tax law and on the debt ceilingThe legal cap on how much the Treasury may borrow. Hitting it without a raise risks a default. is public and permanent at congress.gov. Look up how your members voted. Then ask one question: do I want to renew their contract in November?

1. Check who owns your news. An outlet may answer to a parent company, a billionaire owner or its advertisers. That shapes what it covers and what it skips. You do not have to stop reading it. Test it. Look up who owns it, and trace its big claims back to the original numbers, including ours.

1. Test any debt claim with an AI. Paste this into ChatGPT, Claude, Perplexity or Gemini with web search on:

1. Check the number yourself. Treasury's Debt to the Penny updates every business day. The Peterson Foundation tracks the interest bill each month. Both are free.

1. Carry the five-door test. When someone promises to fix the debt, ask which door they chose and who pays.

1. Bring one other person. Show one person that China does not own America, or that the tax cuts were borrowed. Tell them the sources are linked at the bottom, and to check them.

Pressure works. News reports say that in 2011 Bank of America dropped a planned $5 debit card fee within weeks after customers objected. In 2012, a public blackout was followed within days by Congress pulling two internet bills.

Right now only about 2% of Americans name the debt as the country's top problem, according to Gallup, as the Council on Foreign Relations noted in August. That is why nobody is running on it. Make them.

The claims you keep hearing, checked

"China owns our debt." False. China holds about $618 billion of more than $40 trillion.

"We can grow our way out." Growth helps. But on the Committee for a Responsible Federal Budget's projection, the interest rate on the debt would pass the growth rate by 2029.

"Tariffs will pay it down." The Supreme Court struck down most of them, and about $100 billion to $110 billion has gone back out in refunds.

"The tax cuts pay for themselves." They did not. The deficit this year is about $2 trillion, and corporate tax collections are down about a quarter.

"Cutting waste will fix it." Tightening fraud is worth doing. It is a small piece of a $40 trillion problem.

"You won't feel it." You already do: in an interest bill the size of the military budget, and in the rate on your next loan.

Where this leaves you

The debt is not a force of nature. It is a list of choices with dates, votes and price tags.

Some of that borrowing bought things the country needed in a crisis, and it ended. The part that keeps growing was chosen, and chosen again last year: tax cuts at the top, made permanent, paid for partly by cutting health care and food at the bottom, and borrowed for the rest. Now lenders are charging more, and that cost is reaching your mortgage and your car loan.

It is a hidden tax nobody voted for. But the people who wrote it were elected. Look up their votes. Then use yours.

Don't take our word for it

Every number above has a source below. Open a link and check.