MILAN, Nov 30 (Reuters) - Italy's biggest bank Intesa Sanpaolo said on Thursday the European Central Bank had set a minimum threshold for its best-quality Common Equity Tier 1 (CET1) capital of 9.32% for 2024, above the previous year's level.

The ECB had set the same threshold at 8.88% for the current year.

The new requirement kicks in on Jan. 1, 2024.

The increase to 2023 stems mostly from a buffer that 'Other Systemically Important Institutions' (O-SII) are due to hold, which stands at 1.25% for 2024 versus 0.75% in 2023.

The countercyclical buffer requirement also inched up slightly to 0.23% from 0.16%, Intesa said. (Reporting by Valentina Za; editing by Jonathan Oatis)