Total interest expense on the public debt, fiscal year
U.S. Department of the Treasury, Bureau of the Fiscal Service · fiscal year · 17 observations
$1,360.4B
As of FY2026
+11.5% vs prior FY
Billions of dollars
Source: U.S. Treasury
About this series
What it measures
All interest the Treasury accrued on the public debt during the fiscal year, including interest credited to federal trust funds and to holders of public issues.
Why it matters
It is the broadest Treasury measure of interest on the debt and is updated monthly.
Common misreads
It is larger than budget net interest: it includes interest the government pays its own trust funds and does not subtract interest the government earns. It is accrual-based, and it can differ from cash outlays in the Monthly Treasury Statement.