M&T BANK CORP

The provision for income taxes was $233 million in the third quarter of 2025, compared with $219 million in the second quarter of 2025. For the nine-month periods ended September 30, 2025 and 2024, the provision for income taxes was $629 million and $521 million, respectively. The Company's effective tax rates were 22.8% and 23.4% for the quarters ended September 30, 2025 and June 30, 2025, respectively, and 23.1% and 21.5% for the nine-month periods ended September 30, 2025 and 2024, respectively. The income tax expense for the nine months ended

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September 30, 2024 reflects a $17 million net discrete tax benefit related to the resolution of an income tax matter inherited from the acquisition of People's United, and a $14 million discrete tax benefit related to certain tax credits claimed on a prior year tax return. The Company's effective tax rate is affected by the level of income earned that is exempt from tax relative to the overall level of pre-tax income, the amount of income allocated to the various state and local jurisdictions where the Company operates, because tax rates differ among such jurisdictions, and the impact of any large discrete or infrequently occurring items. The Company’s effective tax rate in future periods may also be affected by any change in income tax laws or regulations and interpretations of income tax regulations that differ from the Company’s interpretations by any of the various tax authorities that may examine tax returns filed by M&T or any of its subsidiaries. New federal tax legislation was signed into law on July 4, 2025, which includes a broad range of tax reform provisions. The Company does not expect the new legislation will have a material impact on its effective tax rate.