The U.S. national debt has crossed the $40 trillion mark, and the cost of carrying that debt is now hitting record levels. Federal interest payments have risen to $1.25 trillion a year—a figure that surpasses the entire 2026 defense budget.
According to a recent analysis from investment management firm Doubleline, the federal net interest payment reached 18.5% of revenue in 2025. That edges past the previous record of 18.4% set in 1991.
What the Rising Interest Burden Means for the U.S. Economy
To put it plainly, the U.S. is now collecting nearly 19% of all taxes and revenue just to pay off interest on its debt. That leaves less money for other priorities like infrastructure, education, or emergency spending.
Analysts warn that the risks tied to servicing this debt today are much higher than they were 35 years ago. The economy is different, interest rates are different, and the sheer size of the debt changes the picture entirely.
The Cycle of Borrowing to Pay Interest
Growing interest payments create a troubling cycle. The government must borrow more money just to cover the interest on what it already owes. This reduces its flexibility to spend on other programs and services.
This is what analysts describe as "uncharted territory." The U.S. has never faced a debt load this large with interest costs this high.
"The federal net interest payment on the U.S.'s now-$40 trillion national debt reached 18.5% of revenue, surpassing 1991's record 18.4%." — Doubleline Analysis
Comparing Today's Debt Crisis to 1991
In 1991, the U.S. hit a similar ratio of interest payments to revenue. But analysts point out that the situation today is not comparable. The economy was stronger relative to the debt, and interest rates were on a different trajectory.
Today, the $1.25 trillion annual interest bill is more than the entire defense budget for 2026. That single fact shows how much of the federal budget is now consumed by past borrowing.
Our Take: This Is a Warning Sign That Cannot Be Ignored
In our view, this news should concern every American. When nearly one in every five dollars of federal revenue goes to interest payments, the government has less room to respond to crises, invest in the future, or cut taxes.
The comparison to 1991 is useful, but it should not bring comfort. The debt is larger, the interest rates are higher, and the margin for error is thinner. Policymakers need to address this trajectory before the cycle of borrowing to pay interest becomes impossible to break.
This is not a problem for the distant future—it is happening now, and the numbers make that clear.
