5.Here's how America's $40 trillion debt can hit your wallet

Here's how America's $40 trillion debt can hit your wallet. Add Axios as your preferred source to.

Key points

• State of play: The gross federal debt hit $40 trillion for the first time on Wednesday.
• How it works: Mortgage rates, for example, tend to move closely with the yield on the 10-year Treasury note.
• Economists usually focus on the roughly $32 trillion held by the public when assessing how debt affects the economy.
• Debt as riskier, interest rates could rise further, increasing borrowing costs for expansion, hiring, and investment, the Conference Board report notes.
• But Americans "are starting to connect the dots" regarding how the national debt affects them, Loper states, particularly through high mortgage rates.

That figure includes debt the administration owes itself. Economists usually focus on the roughly $32 trillion held by the public when assessing how debt affects the economy.

While the White House has sought tens of billions of dollars in extra funding tied to the Iran war, president Trump's tax-and-spending law is projected to add trillions to federal deficits over the next decade.

Higher national debt could create mortgages, student loans and small-business borrowing more expensive by putting upward pressure on interest rates, according to a new report from the Conference Board, a nonprofit think tank.

For context, the major picture: As U.S. Debt grows, investors could demand higher yields if they become less confident in the government's fiscal position.

"If investors begin to view U.S. Debt as riskier, interest rates could rise further, increasing borrowing costs for expansion, hiring, and investment, " the Conference Board report notes.

How it works: Mortgage rates, for example, tend to move closely with the yield on the 10-year Treasury note. It reflects the return investors demand to lend funds to the federal administration, notes Brett Loper, executive vice president for policy at the fiscal think tank Peter G. Peterson Foundation.

When Treasury yields rise, mortgage rates tend to rise, too. "If it is costing more and more for the government to borrow. It's going to push up mortgage rates, " he notes.

Loper notes higher administration borrowing costs can filter through to auto loans, bonds that finance school construction and other forms of borrowing.

Threat level: High debt could add to inflation reservations if investors commence to fear that policymakers will eventually rely on inflationary measures to accord with the government's fiscal difficulties, Loper notes.

"You're creating risks that we're going to have to print more money or monetize the debt in some way, and those types of fears cause pressure on inflation, " Loper notes. More of your tax dollars go to interest.

Zoom in: As the national debt grows, the federal administration has to devote more capital to interest payments.

That can leave lawmakers with less room to fund priorities such as defense, infrastructure and education.

Case in point: The federal administration is projected to spend more than $1 trillion on net interest in 2026, more than it will spend on any mandatory program other than Social Security or Medicare, per the CBO's projections.

Washington has shown little appetite for changing the nation's fiscal trajectory, leaving the political debate over spending and taxes unresolved.

But Americans "are starting to connect the dots" regarding how the national debt affects them, Loper states, particularly through high mortgage rates. This could affect how they vote in the midterms, he notes.

Putting federal debt on a more sustainable path ultimately requires some combination of slower spending expansion and higher revenue, according to the CBO.

Go deeper: Treasury to double down on buybacks to steady bond market. Courtenay Brown contributed to this report.

Taken together, the developments around 5.Here' s how America' s $40 trillion debt can hit your wallet point to a situation that is still moving, and the coming days should bring more clarity.