The average interest rate on the US debt rose to 3.447% in July 2026
Treasury paid an average of 3.447% across all interest-bearing debt at the end of July 2026, up 4 basis points from 3.409% a month earlier. Twelve months earlier it was 3.352%, a change of plus 10 basis points. Marketable debt, the part sold at auction, averaged 3.443%. The average moves as maturing securities are replaced at current rates, which is why it can rise in a month when the debt itself barely changes.
- Average rate, all debt
- 3.447%
- Change on the month
- +4 basis points
- Change on the year
- +10 basis points
- Marketable debt
- 3.443%