Treasury pays 3.49% on its debt and 4.75% on new ten-year borrowing
At the end of August 2026 the average rate across all interest-bearing debt was 3.490%. On August 31, 2026 the Treasury yield curve ran from 3.85% to 5.25%, with the ten-year at 4.75% and the thirty-year at 5.25%. New ten-year borrowing therefore costs 126 basis points more than the average already being paid, and maturing securities are refinanced at the new rate. The published average excludes inflation-protected and floating rate securities.
- Average rate paid
- 3.490%
- 3-month bill
- 3.91%
- 10-year note
- 4.75%
- 30-year bond
- 5.25%
- Gap at ten years
- +126 bp