September 2026 | Released September 08, 2026


+$2.67T
Change in gross national debt
Sep 05, 2025 to Sep 03, 2026
$297,522
Gross national debt per household
Sep 03, 2026
3.475 percent
Avg. int. rate on total marketable debt
Aug 2026


Growth of the national debt






Interest rate on U.S. debt


U.S. public debt in the form of Treasury securities is primarily made up of bills (4-52 weeks), notes (2-10 years), and bonds (20-30 years). Others include Treasury Inflation Protected Securities, Cash Management Bills, and Floating Rate Notes.

  • Net interest as a share of outlays is forecast by the Congressional Budget Office to be 13.95 percent in FY2026, 14.25 percent in FY2027, and 14.94 percent in FY2028.

  • As of August 2026, the average interest rate on the total marketable national debt is 3.475 percent. One year ago, it was 3.415 percent; five years ago, it was 1.458 percent.

  • The total amount of interest paid to trust funds over the past 12 months was $294.76 billion, an average of $24.56 billion per month.




Composition of U.S. debt


  • A bid-to-cover ratio of 2 or higher reflects strong Treasury demand. As of August 2026, the bid-to-cover ratio for Treasury bills (4-week) is 2.97, for notes (10-year) is 2.53, and for bonds (30-year) is 2.39.

  • As of August 2026, of the $32.41 trillion of total public debt outstanding, $16.21 trillion (50.02 percent) is in notes, $7.25 trillion (22.36 percent) is in bills, and $5.51 trillion (17.01 percent) is in bonds. $3.44 trillion (10.61 percent) is in other securities.

  • As of the most recent data from Q3 of FY2026, approximately 33 percent of U.S. publicly held marketable debt will be maturing within 12 months.

  • As of the most recent data from June 2026, the average maturity is 71 months. In June 2025, it was 72 months; in June 2021, it was 69 months.




Upcoming releases


Date Time Release Data source
Sep 11 08:30 AM Monthly Inflation Update, August 2026 Bureau of Labor Statistics
Sep 14 10:00 AM Monthly Fiscal Update, August 2026 U.S. Treasury
Sep 18 10:00 AM State Employment and Unemployment, August 2026 Bureau of Labor Statistics
Sep 30 08:30 AM Monthly Expenditures Update, August 2026 Bureau of Economic Analysis
Sep 30 08:30 AM Monthly GDP Update, Q2 2026 Third Estimate Bureau of Economic Analysis
Oct 02 08:30 AM Monthly Employment Update, September 2026 Bureau of Labor Statistics
Oct 06 08:30 AM Monthly Trade Update, August 2026 Bureau of Economic Analysis
Oct 07 10:00 AM Monthly Debt Update, October 2026 U.S. Treasury


Notes


Source: U.S. Treasury; JEC Republicans calculations