The U.S. government is spending $88 billion a month in interest on national debt—equal to spending on defense and education combined

The problem with an increasing debt burden is that it costs more to maintain it: This is precisely the issue with which the U.S. Treasury is wrangling at present. As total U.S. national debt ticks over $39 trillion, the interest payments on that value are eye-watering: $529 billion for the first six months of the current fiscal year.

A new budget update from the Congressional Budget Office (CBO) released yesterday highlights that the government—according to preliminary estimates—paid out the near $530 billion between October 2025, when the fiscal year starts, and March 2026. This equates to more than $88 billion in interest payments a month, or more than $22 billion a week.

That means the service payments on public debt are roughly equal to spending for the same period on both the Department of Defense’s military budget and the Department of Education. These two outlays contribute costs of $461 billion and $70 billion respectively.

The net interest payments on public debt are also increasing at a pace. For the same period last year, the Treasury paid $497 billion to service its debt. The difference from last year to this is a $33 billion leap—or 7% more than before.

The CBO report notes service payments increased “because the debt was larger than it was in the first half of fiscal year 2025 and because of higher long-term interest rates. Declines in short-term interest rates partially mitigated the overall rise in interest payments.”