The South Korea Financial Supervisory Service published its December 2025 snapshot of domestic banks’ loans classified as substandard or below (SBLs), showing the system-wide SBL ratio unchanged at 0.57% from three months earlier but 0.03 percentage points higher than a year earlier. SBL balances rose to KRW 16.6 trillion while provisioning and coverage indicators declined. SBLs comprised KRW 13.2 trillion of business loans, KRW 3.1 trillion of household loans and KRW 0.3 trillion of credit card receivables and loans. Total provisions for bad debts fell to KRW 26.7 trillion (from KRW 27.1 trillion at end-September), taking the NPL coverage ratio to 160.3% (down 4.5 percentage points quarter on quarter and 26.7 percentage points year on year). By loan type, business-loan SBL ratios eased to 0.70% with a rise for large companies to 0.49% and a decline for SMEs to 0.83%; household loans increased to 0.31% (mortgages 0.21%, unsecured 0.64%), while credit card receivables and loans fell to 1.84%. New SBLs in the fourth quarter of 2025 totalled KRW 5.9 trillion and resolved SBLs totalled KRW 5.7 trillion, including KRW 4.1 trillion in write-offs and loan sales.