South Korea COFIX monthly benchmark interest rates (KFB)
Monthly Cost of Funds Index (COFIX) published by the Korea Federation of Banks (KFB / 은행연합회), the primary benchmark rate for variable-rate residential mortgage loans in South Korea, covering New Handling Amount basis (신규취급액기준), Outstanding Balance basis (잔액기준), and New Outstanding Balance basis (신잔액기준).
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| Indicator | 09-2026 | 08-2026 | 07-2026 | 06-2026 | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | 11-2025 | 10-2025 | 09-2025 | 08-2025 | 07-2025 | 06-2025 | 05-2025 | 04-2025 | 03-2025 | 02-2025 | 01-2025 | 12-2024 | 11-2024 | 10-2024 | 09-2024 | 08-2024 | 07-2024 | 06-2024 | 05-2024 | 04-2024 | 03-2024 | 02-2024 | 01-2024 | 12-2023 | 11-2023 | 10-2023 | 09-2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| COFIX – New Handling Amount Basis | 3.43 | 3.18 | 3.18 | 3.05 | 2.9 | 2.89 | 2.81 | 2.82 | 2.77 | 2.89 | 2.81 | 2.57 | 2.52 | 2.49 | 2.51 | 2.54 | 2.63 | 2.7 | 2.84 | 2.97 | 3.08 | 3.22 | 3.35 | 3.37 | 3.4 | 3.36 | 3.42 | 3.52 | 3.56 | 3.54 | 3.59 | 3.62 | 3.66 | 3.84 | 4 | 3.97 | 3.82 | |
| COFIX – Outstanding Balance Basis | 3.15 | 3.05 | 3 | 2.94 | 2.89 | 2.87 | 2.85 | 2.85 | 2.85 | 2.84 | 2.83 | 2.84 | 2.89 | 2.94 | 3 | 3.07 | 3.14 | 3.22 | 3.3 | 3.36 | 3.42 | 3.47 | 3.53 | 3.58 | 3.63 | 3.67 | 3.69 | 3.73 | 3.74 | 3.76 | 3.78 | 3.81 | 3.84 | 3.87 | 3.89 | 3.9 | 3.88 | |
| COFIX – New Outstanding Balance Basis | 2.79 | 2.71 | 2.65 | 2.54 | 2.5 | 2.49 | 2.45 | 2.47 | 2.48 | 2.47 | 2.48 | 2.48 | 2.49 | 2.54 | 2.59 | 2.63 | 2.71 | 2.76 | 2.8 | 2.89 | 2.92 | 2.98 | 3.07 | 3.09 | 3.12 | 3.14 | 3.15 | 3.17 | 3.2 | 3.17 | 3.19 | 3.24 | 3.29 | 3.29 | 3.35 | 3.33 | 3.29 |
Latest reading
The series on this page is monthly and runs from Jan 2010 to Sep 2026.
About this data
Monthly Cost of Funds Index (COFIX) published by the Korea Federation of Banks (KFB / 은행연합회), the primary benchmark rate for variable-rate residential mortgage loans in South Korea, covering New Handling Amount basis (신규취급액기준), Outstanding Balance basis (잔액기준), and New Outstanding Balance basis (신잔액기준).
Frequently asked questions
- What is the latest figure for South Korea COFIX monthly benchmark interest rates (KFB)?
- COFIX – New Handling Amount Basis stood at 3.43% in Sep 2026. That is +0.3 pp from Aug 2026 and +0.9 pp from a year earlier.
- Is South Korea COFIX monthly benchmark interest rates (KFB) at a high or a low right now?
- The reading of 3.43% is the highest since Jun 2024.
- How far back does the South Korea COFIX monthly benchmark interest rates (KFB) data go?
- The series on this page is monthly and runs from Jan 2010 to Sep 2026. Every series in the table can be charted over its full history and downloaded as CSV or Excel.