Includes commercial banks (nationwide and regional banks), specialized banks, and digital banks in South Korea. Foreign bank branches were excluded.
The net interest margin (NIM) is an important indicator for the profitability of banks and financial institutions and is calculated as the difference between the interest received and interest paid relative to the average earning assets.
In 2024, the net interest margin (NIM) of domestic banks in South Korea reached **** percent. The net interest margin of domestic banks in South Korea declined to a record low in 2020, especially after South Korea's central bank kept the base rate at a record low level following the outbreak of the coronavirus (COVID-19) pandemic.
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Financial Supervisory Service. (March 14, 2025). Net interest margin (NIM) of domestic banks in South Korea from 2015 to 2024 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 02, 2026, from /statistics/1235218/south-korea-net-interest-margin-of-domestic-banks/
Financial Supervisory Service. "Net interest margin (NIM) of domestic banks in South Korea from 2015 to 2024." Chart. March 14, 2025. ÌÇÐÄÆƽâ°æ. Accessed August 02, 2026. /statistics/1235218/south-korea-net-interest-margin-of-domestic-banks/
Financial Supervisory Service. (2025). Net interest margin (NIM) of domestic banks in South Korea from 2015 to 2024. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 02, 2026. /statistics/1235218/south-korea-net-interest-margin-of-domestic-banks/
Financial Supervisory Service. "Net Interest Margin (Nim) of Domestic Banks in South Korea from 2015 to 2024." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 14 Mar 2025, /statistics/1235218/south-korea-net-interest-margin-of-domestic-banks/
Financial Supervisory Service, Net interest margin (NIM) of domestic banks in South Korea from 2015 to 2024 ÌÇÐÄÆƽâ°æ, /statistics/1235218/south-korea-net-interest-margin-of-domestic-banks/ (last visited August 02, 2026)
Net interest margin (NIM) of domestic banks in South Korea from 2015 to 2024 [Graph], Financial Supervisory Service, March 14, 2025. [Online]. Available: /statistics/1235218/south-korea-net-interest-margin-of-domestic-banks/
