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Variable interest entities and asset securitizations
 9 Months Ended
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Variable interest entities and asset securitizations
12. Variable interest entities and asset securitizations
The Company’s securitization activities include securitizing loans originated for sale into government-issued or guaranteed mortgage-backed securities. Additionally, M&T Bank and its subsidiaries have issued asset-backed notes secured by either equipment finance loans and leases or by automobile loans. Those loans and leases were sold into special purpose trusts which in turn issued asset-backed notes to investors. The loans and leases continue to be serviced by the Company. The senior-most notes in those securitizations were purchased by third parties whereas the residual interests of the trusts were retained by the Company. As a result of the retention of the residual interests and its continued role as servicer of the loans and leases, the Company is considered to be the primary beneficiary of the securitization trusts and, accordingly, the trusts have been included in the Company's consolidated financial statements. Assets held in each special purpose trust may only be used to settle the respective obligations of the asset-backed notes issued by that trust and the holders of the asset-backed notes have no recourse to the Company. The outstanding balances of those asset-backed notes issued to third party investors are included in Long-term borrowings in the Company's Consolidated Balance Sheet. Information about the asset-backed notes issued to investors and the respective special purpose trust at September 30, 2025 and December 31, 2024 are included in the following table.
(Dollars in millions)
September 30, 2025
December 31, 2024
Issue DateCollateral TypeRemaining Loan Collateral BalanceAsset-Backed Notes to InvestorsWeighted-Average Life (In years)Weighted-Average RateRemaining Loan Collateral BalanceAsset-Backed Notes to Investors
August 2023Equipment finance loans and leases$284 $177 0.75.74 %$416 $297 
March 2024Automobile loans282 269 1.35.25 383371
August 2024Equipment finance loans and leases536 437 1.54.87 691561
February 2025Automobile loans583 568 1.54.74 — — 
May 2025Equipment finance loans and leases591 478 1.94.75 — — 
$1,929 $1,229 
M&T has issued Junior Subordinated Debentures payable to various trusts that have issued Preferred Capital Securities and Common Securities. M&T owns the Common Securities of those trust entities. The Company is not considered to be the primary beneficiary of those entities and, accordingly, the trusts are not included in the Company’s consolidated financial statements. At each of September 30, 2025 and December 31, 2024, the Company included the Junior Subordinated Debentures in Long-term borrowings in the Company's Consolidated Balance Sheet and included $16 million and $17 million, respectively, in Accrued interest and other assets for its “investment” in the Common Securities of the trusts that will be concomitantly repaid to M&T by the respective trust from the proceeds of M&T’s repayment of the Junior Subordinated Debentures associated with the Preferred Capital Securities.
The Company has invested as a limited partner in various partnerships that collectively had total assets of approximately $10.6 billion and $10.5 billion at September 30, 2025 and December 31, 2024, respectively. Those partnerships generally construct or acquire properties, including properties and facilities that produce renewable energy, for which the investing partners are eligible to receive certain federal income tax credits in accordance with government guidelines. Such investments may also provide tax deductible losses to the partners. The partnership investments also assist the Company in achieving its community reinvestment initiatives. The Company, in its position as a limited partner, does not direct the activities that most significantly impact the economic performance of the partnerships and, therefore, the partnership entities are not included in the Company's consolidated financial
statements. The Company’s investments in qualified affordable housing projects are accounted for using the proportional amortization method whereby those investments are amortized to Income taxes in the Company's Consolidated Statement of Income as tax credits and other tax benefits resulting from deductible losses associated with the projects are received. The Company has elected to apply the proportional amortization method to eligible renewable energy and certain other tax credit investments in addition to the low income housing tax credit investments for which the proportional amortization method had previously been applied. Information on the Company's carrying amount of its investments in tax equity partnerships and its related future funding commitments are presented in the following table:
(Dollars in millions)September 30, 2025December 31, 2024
Affordable housing projects:
Carrying amount (a)$1,598 $1,384 
Amount of future funding commitments included in carrying amount (b)658 467 
Contingent commitments88 69 
Renewable energy:
Carrying amount (a)115 135 
Amount of future funding commitments included in carrying amount (b)65 46 
Other:
Carrying amount (a)34 37 
Amount of future funding commitments included in carrying amount— — 
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(a)Included in Accrued interest and other assets in the Company's Consolidated Balance Sheet.
(b)Included in Accrued interest and other liabilities in the Company's Consolidated Balance Sheet.

The reduction to income tax expense recognized from the Company's investments in partnerships accounted for using the proportional amortization method was $9 million (net of $49 million of investment amortization) and $10 million (net of $47 million of investment amortization) for the three months ended September 30, 2025 and 2024, respectively, and $29 million (net of $138 million of investment amortization) and $25 million (net of $135 million of investment amortization) for the nine months ended September 30, 2025 and 2024, respectively. The net reduction to income tax expense has been reported in Net change in other accrued income and expense in the Company's Consolidated Statement of Cash Flows. While the Company has elected to apply the proportional amortization method for renewable energy credit investments, at September 30, 2025 no such investments met the eligibility criteria for application of that method. The reduction to income tax expense recognized from renewable energy credit investments was $1 million and $13 million for the three-month and nine-month periods ended September 30, 2025, respectively, and $8 million and $28 million for the three-month and nine-month periods ended September 30, 2024, respectively. As a limited partner, there is no recourse to the Company by creditors of the partnerships. However, the tax credits that result from the Company’s investments in such partnerships are generally subject to recapture should a partnership fail to comply with the respective government regulations. The Company has not provided financial or other support to the partnerships that was not contractually required. Although the Company currently estimates that no material losses are probable, its maximum exposure to loss from its investments in such partnerships as of September 30, 2025 was $2.2 billion, including possible recapture of certain tax credits.
The Company serves as investment advisor for certain registered money-market funds. The Company has no explicit arrangement to provide support to those funds, but may waive portions of its allowable management fees as a result of market conditions.