EAST WEST BANCORP INC

The following table presents income before income taxes, income tax expense and the effective tax rate for the third quarters and first nine months of 2025 and 2024:

Third quarter 2025 income tax expense was $97 million and the effective tax rate was 20.8%, compared with third quarter 2024 income tax expense of $90 million and an effective tax rate of 23.2%. The year-over-year increase in third quarter income tax expense was primarily due to higher pre-tax income, partially offset by lower effective tax rate, driven by favorable adjustments from the timing of tax credit investments that closed in a given period and a lower California state tax apportionment. For the first nine months of 2025, income tax expense was $290 million and the effective tax rate was 23.0%, compared with income tax expense of $254 million and an effective tax rate of 22.5% for the same period in 2024. The year-over-year increases in income tax expense and effective tax rate were primarily due to the one-time revaluation of deferred tax assets, following the adoption of the California single sales factor apportionment method and higher pre-tax income, partially offset by favorable adjustments driven by a lower California state tax apportionment and the timing of tax credit investments that closed in a given period.