https://treasuryratewatch.com/ Monthly U.S. Treasury average interest rates, interest expense and debt outstanding, from official Fiscal Data releases. en Mon, 31 Aug 2026 12:00:00 GMT https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-08-31 Mon, 31 Aug 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.490% as of Aug 31, 2026, up 0.043 percentage points from the prior month. Accrued interest on publicly held debt came to $57.8B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-07-31 Fri, 31 Jul 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.447% as of Jul 31, 2026, up 0.038 percentage points from the prior month. Accrued interest on publicly held debt came to $78.0B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-06-30 Tue, 30 Jun 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.409% as of Jun 30, 2026, up 0.056 percentage points from the prior month. Accrued interest on publicly held debt came to $79.4B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-05-31 Sun, 31 May 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.353% as of May 31, 2026, up 0.013 percentage points from the prior month. Accrued interest on publicly held debt came to $84.6B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-04-30 Thu, 30 Apr 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.340% as of Apr 30, 2026, up 0.013 percentage points from the prior month. Accrued interest on publicly held debt came to $70.2B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-03-31 Tue, 31 Mar 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.327% as of Mar 31, 2026, up 0.007 percentage points from the prior month. Accrued interest on publicly held debt came to $69.1B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-02-28 Sat, 28 Feb 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.320% as of Feb 28, 2026, up 0.004 percentage points from the prior month. Accrued interest on publicly held debt came to $54.4B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2026-01-31 Sat, 31 Jan 2026 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.316% as of Jan 31, 2026, down 0.008 percentage points from the prior month. Accrued interest on publicly held debt came to $51.5B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-12-31 Wed, 31 Dec 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.324% as of Dec 31, 2025, down 0.024 percentage points from the prior month. Accrued interest on publicly held debt came to $64.8B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-11-30 Sun, 30 Nov 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.348% as of Nov 30, 2025, down 0.007 percentage points from the prior month. Accrued interest on publicly held debt came to $62.7B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-10-31 Fri, 31 Oct 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.355% as of Oct 31, 2025, down 0.008 percentage points from the prior month. Accrued interest on publicly held debt came to $64.4B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-09-30 Tue, 30 Sep 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.363% as of Sep 30, 2025, down 0.009 percentage points from the prior month. Accrued interest on publicly held debt came to $59.0B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-08-31 Sun, 31 Aug 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.372% as of Aug 31, 2025, up 0.020 percentage points from the prior month. Accrued interest on publicly held debt came to $64.3B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-07-31 Thu, 31 Jul 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.352% as of Jul 31, 2025, up 0.048 percentage points from the prior month. Accrued interest on publicly held debt came to $61.1B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-06-30 Mon, 30 Jun 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.304% as of Jun 30, 2025, up 0.010 percentage points from the prior month. Accrued interest on publicly held debt came to $60.2B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-05-31 Sat, 31 May 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.294% as of May 31, 2025, up 0.005 percentage points from the prior month. Accrued interest on publicly held debt came to $60.1B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-04-30 Wed, 30 Apr 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.289% as of Apr 30, 2025, up 0.005 percentage points from the prior month. Accrued interest on publicly held debt came to $62.0B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-03-31 Mon, 31 Mar 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.284% as of Mar 31, 2025, up 0.002 percentage points from the prior month. Accrued interest on publicly held debt came to $66.6B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-02-28 Fri, 28 Feb 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.282% as of Feb 28, 2025, unchanged from the prior month. Accrued interest on publicly held debt came to $48.4B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2025-01-31 Fri, 31 Jan 2025 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.282% as of Jan 31, 2025, up 0.002 percentage points from the prior month. Accrued interest on publicly held debt came to $51.1B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2024-12-31 Tue, 31 Dec 2024 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.280% as of Dec 31, 2024, down 0.018 percentage points from the prior month. Accrued interest on publicly held debt came to $53.4B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2024-11-30 Sat, 30 Nov 2024 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.298% as of Nov 30, 2024, down 0.004 percentage points from the prior month. Accrued interest on publicly held debt came to $51.9B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2024-10-31 Thu, 31 Oct 2024 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.302% as of Oct 31, 2024, down 0.022 percentage points from the prior month. Accrued interest on publicly held debt came to $51.2B that month. https://treasuryratewatch.com/ https://treasuryratewatch.com/#2024-09-30 Mon, 30 Sep 2024 12:00:00 GMT The weighted-average interest rate across all interest-bearing U.S. federal debt was 3.324% as of Sep 30, 2024. Accrued interest on publicly held debt came to $49.3B that month.