| COMMUNITY FINANCIAL SYSTEM, INC. (CBU) |
| Q1-CY2026 | Q4-CY2025 | Q3-CY2025 | Q2-CY2025 | Q1-CY2025 | Q4-CY2024 | Q3-CY2024 | Q2-CY2024 | Q1-CY2024 | Q4-CY2023 | Q3-CY2023 | Q2-CY2023 | Q1-CY2023 | Q4-CY2022 | Q3-CY2022 | Q2-CY2022 | Q1-CY2022 | Q4-CY2021 | Q3-CY2021 | Q2-CY2021 | Q1-CY2021 | Q4-CY2020 | Q3-CY2020 | Q2-CY2020 | Q1-CY2020 | Q4-CY2019 | Q3-CY2019 | Q2-CY2019 | Q1-CY2019 | Q4-CY2018 | Q3-CY2018 | Q2-CY2018 | Q1-CY2018 | Q4-CY2017 | Q3-CY2017 | Q2-CY2017 | Q1-CY2017 | Q4-CY2016 | Q3-CY2016 | Q2-CY2016 | Q1-CY2016 | Q4-CY2015 | Q3-CY2015 | Q2-CY2015 | Q1-CY2015 | Q4-CY2014 | Q3-CY2014 | Q2-CY2014 | Q1-CY2014 |
| Balance Sheet Date | | 2025-Dec-31 | 2025-Sep-30 | 2025-Jun-30 | 2025-Mar-31 | 2024-Dec-31 | 2024-Sep-30 | 2024-Jun-30 | 2024-Mar-31 | 2023-Dec-31 | 2023-Sep-30 | 2023-Jun-30 | 2023-Mar-31 | 2022-Dec-31 | 2022-Sep-30 | 2022-Jun-30 | 2022-Mar-31 | 2021-Dec-31 | 2021-Sep-30 | 2021-Jun-30 | 2021-Mar-31 | 2020-Dec-31 | 2020-Sep-30 | 2020-Jun-30 | 2020-Mar-31 | 2019-Dec-31 | 2019-Sep-30 | 2019-Jun-30 | 2019-Mar-31 | 2018-Dec-31 | 2018-Sep-30 | 2018-Jun-30 | 2018-Mar-31 | 2017-Dec-31 | 2017-Sep-30 | 2017-Jun-30 | 2017-Mar-31 | 2016-Dec-31 | 2016-Sep-30 | 2016-Jun-30 | 2016-Mar-31 | 2015-Dec-31 | 2015-Sep-30 | 2015-Jun-30 | 2015-Mar-31 | 2014-Dec-31 | 2014-Sep-30 | 2014-Jun-30 | 2014-Mar-31 |
| Fiscal Period | | Q4-FY2025 | Q3-FY2025 | Q2-FY2025 | Q1-FY2025 | Q4-FY2024 | Q3-FY2024 | Q2-FY2024 | Q1-FY2024 | Q4-FY2023 | Q3-FY2023 | Q2-FY2023 | Q1-FY2023 | Q4-FY2022 | Q3-FY2022 | Q2-FY2022 | Q1-FY2022 | Q4-FY2021 | Q3-FY2021 | Q2-FY2021 | Q1-FY2021 | Q4-FY2020 | Q3-FY2020 | Q2-FY2020 | Q1-FY2020 | Q4-FY2019 | Q3-FY2019 | Q2-FY2019 | Q1-FY2019 | Q4-FY2018 | Q3-FY2018 | Q2-FY2018 | Q1-FY2018 | Q4-FY2017 | Q3-FY2017 | Q2-FY2017 | Q1-FY2017 | Q4-FY2016 | Q3-FY2016 | Q2-FY2016 | Q1-FY2016 | Q4-FY2015 | Q3-FY2015 | Q2-FY2015 | Q1-FY2015 | Q4-FY2014 | Q3-FY2014 | Q2-FY2014 | Q1-FY2014 |
| Total Assets | | 17,303,296,000$ | 16,957,804,000$ | 16,665,018,000$ | 16,764,296,000$ | 16,386,044,000$ | 16,404,700,000$ | 15,906,816,000$ | 15,858,670,000$ | 15,555,753,000$ | 15,386,322,000$ | 15,108,050,000$ | 15,255,953,000$ | 15,835,651,000$ | 15,594,547,000$ | 15,487,833,000$ | 15,625,883,000$ | 15,552,657,000$ | 15,331,098,000$ | 14,801,287,000$ | 14,620,181,000$ | 13,931,094,000$ | 13,845,325,000$ | 13,444,217,000$ | 11,808,983,000$ | 11,410,295,000$ | 11,597,297,000$ | 10,745,388,000$ | 10,916,467,000$ | 10,607,295,000$ | 10,659,567,000$ | 10,633,094,000$ | 10,966,555,000$ | 10,746,198,000$ | 10,850,218,000$ | 10,884,046,000$ | 8,913,860,000$ | 8,666,437,000$ | 8,727,746,000$ | 8,742,111,000$ | 8,615,901,000$ | 8,552,669,000$ | 7,997,166,000$ | 7,908,771,000$ | 7,576,039,000$ | 7,489,440,000$ | 7,502,643,000$ | 7,461,343,000$ | 7,397,228,000$ |
| Total Current Assets | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Cash and Cash Equivalents | | 301,755,000$ | 245,247,000$ | 237,248,000$ | 518,021,000$ | 197,004,000$ | 346,110,000$ | 201,493,000$ | 338,381,000$ | 190,962,000$ | 455,807,000$ | 222,779,000$ | 189,298,000$ | 209,896,000$ | 247,391,000$ | 197,628,000$ | 1,020,926,000$ | 1,875,064,000$ | 2,322,661,000$ | 2,205,926,000$ | 2,151,347,000$ | 1,645,805,000$ | 1,836,521,000$ | 1,319,880,000$ | 529,336,000$ | 205,030,000$ | 1,014,042,000$ | 874,836,000$ | 508,364,000$ | 211,834,000$ | 256,838,000$ | 250,154,000$ | 543,899,000$ | 221,038,000$ | 241,480,000$ | 219,695,000$ | 291,186,000$ | 173,857,000$ | 161,542,000$ | 161,634,000$ | 138,513,000$ | 153,210,000$ | 156,836,000$ | 143,047,000$ | 150,533,000$ | 138,396,000$ | 157,500,000$ | 161,903,000$ | 153,417,000$ |
| Receivables | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Other Current Assets | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Assets Held for Sale in Short Term | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Total Noncurrent Assets | | 17,303,296,000$ | 16,957,804,000$ | 16,665,018,000$ | 16,764,296,000$ | 16,386,044,000$ | 16,404,700,000$ | 15,906,816,000$ | 15,858,670,000$ | 15,555,753,000$ | 15,386,322,000$ | 15,108,050,000$ | 15,255,953,000$ | 15,835,651,000$ | 15,594,547,000$ | 15,487,833,000$ | 15,625,883,000$ | 15,552,657,000$ | 15,331,098,000$ | 14,801,287,000$ | 14,620,181,000$ | 13,931,094,000$ | 13,845,325,000$ | 13,444,217,000$ | 11,808,983,000$ | 11,410,295,000$ | 11,597,297,000$ | 10,745,388,000$ | 10,916,467,000$ | 10,607,295,000$ | 10,659,567,000$ | 10,633,094,000$ | 10,966,555,000$ | 10,746,198,000$ | 10,850,218,000$ | 10,884,046,000$ | 8,913,860,000$ | 8,666,437,000$ | 8,727,746,000$ | 8,742,111,000$ | 8,615,901,000$ | 8,552,669,000$ | 7,997,166,000$ | 7,908,771,000$ | 7,576,039,000$ | 7,489,440,000$ | 7,502,643,000$ | 7,461,343,000$ | 7,397,228,000$ |
| Goodwill | | 887,975,000$ | 855,790,000$ | 854,817,000$ | 854,522,000$ | 853,225,000$ | 852,493,000$ | 852,258,000$ | 849,790,000$ | 845,396,000$ | 845,396,000$ | 843,960,000$ | 842,936,000$ | 841,841,000$ | 844,984,000$ | 849,813,000$ | 799,080,000$ | 799,109,000$ | 799,127,000$ | 794,892,000$ | 793,456,000$ | 793,708,000$ | 793,749,000$ | 792,715,000$ | 773,473,000$ | 773,810,000$ | 39,970,000$ | 733,503,000$ | 733,503,000$ | 733,503,000$ | 733,479,000$ | 733,479,000$ | 733,625,000$ | 734,430,000$ | 731,505,000$ | 733,604,000$ | 542,986,000$ | 465,142,000$ | 465,142,000$ | 465,142,000$ | 465,142,000$ | 463,252,000$ | 375,174,000$ | 375,174,000$ | 375,174,000$ | 375,174,000$ | 375,174,000$ | 375,174,000$ | 375,174,000$ |
| Other Intangible Assets | | 54,741,000$ | 44,177,000$ | 43,564,000$ | 45,810,000$ | 48,246,000$ | 48,130,000$ | 53,522,000$ | 54,649,000$ | 52,591,000$ | 55,938,000$ | 57,749,000$ | 57,978,000$ | 60,996,000$ | 64,240,000$ | 68,078,000$ | 63,958,000$ | 65,226,000$ | 68,977,000$ | 47,780,000$ | 49,589,000$ | 52,940,000$ | 56,465,000$ | 60,046,000$ | 59,446,000$ | 63,113,000$ | 67,075,000$ | 67,012,000$ | 70,916,000$ | 73,846,000$ | 78,221,000$ | 82,648,000$ | 86,959,000$ | 90,658,000$ | 92,850,000$ | 97,799,000$ | 75,991,000$ | 15,702,000$ | 16,977,000$ | 18,336,000$ | 19,739,000$ | 20,894,000$ | 9,351,000$ | 10,341,000$ | 10,880,000$ | 11,799,000$ | 12,792,000$ | 13,844,000$ | 14,945,000$ |
| Physical Assets | | 246,505,000$ | 212,667,000$ | 201,101,000$ | 189,762,000$ | 183,759,000$ | 178,429,000$ | 178,095,000$ | 170,974,000$ | 173,418,000$ | 174,749,000$ | 158,353,000$ | 158,562,000$ | 160,778,000$ | 161,966,000$ | 169,015,000$ | 158,404,000$ | 160,651,000$ | 160,776,000$ | 161,007,000$ | 161,194,000$ | 165,655,000$ | 165,342,000$ | 167,301,000$ | 162,602,000$ | 164,638,000$ | 169,933,000$ | 154,592,000$ | 151,976,000$ | 119,988,000$ | 120,273,000$ | 120,715,000$ | 120,953,000$ | 123,393,000$ | 124,470,000$ | 122,872,000$ | 111,154,000$ | 112,318,000$ | 111,484,000$ | 112,803,000$ | 113,481,000$ | 114,434,000$ | 92,491,000$ | 92,543,000$ | 93,325,000$ | 93,633,000$ | 91,762,000$ | 90,999,000$ | 91,806,000$ |
| Other Noncurrent Assets | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Assets Held for Sale in Long Term | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Total Liabilities | | 15,297,262,000$ | 15,018,854,000$ | 14,781,927,000$ | 14,930,221,000$ | 14,623,209,000$ | 14,619,753,000$ | 14,236,636,000$ | 14,201,715,000$ | 13,857,816,000$ | 13,831,383,000$ | 13,490,644,000$ | 13,621,940,000$ | 14,283,946,000$ | 14,133,384,000$ | 13,826,137,000$ | 13,773,780,000$ | 13,451,850,000$ | 13,261,164,000$ | 12,740,187,000$ | 12,648,784,000$ | 11,826,987,000$ | 11,746,665,000$ | 11,362,902,000$ | 9,832,352,000$ | 9,555,061,000$ | 9,756,876,000$ | 8,935,878,000$ | 9,159,339,000$ | 8,893,512,000$ | 8,991,222,000$ | 8,976,135,000$ | 9,335,089,000$ | 9,110,883,000$ | 9,256,973,000$ | 9,311,146,000$ | 7,617,830,000$ | 7,468,337,000$ | 7,487,164,000$ | 7,505,182,000$ | 7,415,236,000$ | 7,412,022,000$ | 6,952,140,000$ | 6,908,432,000$ | 6,562,637,000$ | 6,501,536,000$ | 6,537,119,000$ | 6,506,328,000$ | 6,479,092,000$ |
| Total Current Liabilities | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Accounts Payable | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Short Term Debt | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Short Term Capital Lease Obligations | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Other Current Liabilities | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Total Noncurrent Liabilities | | 15,297,262,000$ | 15,018,854,000$ | 14,781,927,000$ | 14,930,221,000$ | 14,623,209,000$ | 14,619,753,000$ | 14,236,636,000$ | 14,201,715,000$ | 13,857,816,000$ | 13,831,383,000$ | 13,490,644,000$ | 13,621,940,000$ | 14,283,946,000$ | 14,133,384,000$ | 13,826,137,000$ | 13,773,780,000$ | 13,451,850,000$ | 13,261,164,000$ | 12,740,187,000$ | 12,648,784,000$ | 11,826,987,000$ | 11,746,665,000$ | 11,362,902,000$ | 9,832,352,000$ | 9,555,061,000$ | 9,756,876,000$ | 8,935,878,000$ | 9,159,339,000$ | 8,893,512,000$ | 8,991,222,000$ | 8,976,135,000$ | 9,335,089,000$ | 9,110,883,000$ | 9,256,973,000$ | 9,311,146,000$ | 7,617,830,000$ | 7,468,337,000$ | 7,487,164,000$ | 7,505,182,000$ | 7,415,236,000$ | 7,412,022,000$ | 6,952,140,000$ | 6,908,432,000$ | 6,562,637,000$ | 6,501,536,000$ | 6,537,119,000$ | 6,506,328,000$ | 6,479,092,000$ |
| Long Term Debt | | | | | | 990,198,000$ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Long Term Capital Lease Obligations | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Other Noncurrent Liabilities | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Total Equity | | 2,006,034,000$ | 1,938,950,000$ | 1,883,091,000$ | 1,834,075,000$ | 1,762,835,000$ | 1,784,947,000$ | 1,670,180,000$ | 1,656,955,000$ | 1,697,937,000$ | 1,554,939,000$ | 1,617,406,000$ | 1,634,013,000$ | 1,551,705,000$ | 1,461,163,000$ | 1,661,696,000$ | 1,852,103,000$ | 2,100,807,000$ | 2,069,934,000$ | 2,061,100,000$ | 1,971,397,000$ | 2,104,107,000$ | 2,098,660,000$ | 2,081,925,000$ | 1,976,631,000$ | 1,855,234,000$ | 1,840,421,000$ | 1,809,510,000$ | 1,757,128,000$ | 1,713,783,000$ | 1,668,345,000$ | 1,656,959,000$ | 1,631,466,000$ | 1,635,315,000$ | 1,593,245,000$ | 1,572,900,000$ | 1,296,030,000$ | 1,198,100,000$ | 1,240,582,000$ | 1,236,929,000$ | 1,200,665,000$ | 1,140,647,000$ | 1,045,026,000$ | 1,000,339,000$ | 1,013,402,000$ | 987,904,000$ | 965,524,000$ | 955,015,000$ | 918,136,000$ |
| Equity to Minority | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| Equity to Common Shareholders | | 2,006,034,000$ | 1,938,950,000$ | 1,883,091,000$ | 1,834,075,000$ | 1,762,835,000$ | 1,784,947,000$ | 1,670,180,000$ | 1,656,955,000$ | 1,697,937,000$ | 1,554,939,000$ | 1,617,406,000$ | 1,634,013,000$ | 1,551,705,000$ | 1,461,163,000$ | 1,661,696,000$ | 1,852,103,000$ | 2,100,807,000$ | 2,069,934,000$ | 2,061,100,000$ | 1,971,397,000$ | 2,104,107,000$ | 2,098,660,000$ | 2,081,925,000$ | 1,976,631,000$ | 1,855,234,000$ | 1,840,421,000$ | 1,809,510,000$ | 1,757,128,000$ | 1,713,783,000$ | 1,668,345,000$ | 1,656,959,000$ | 1,631,466,000$ | 1,635,315,000$ | 1,593,245,000$ | 1,572,900,000$ | 1,296,030,000$ | 1,198,100,000$ | 1,240,582,000$ | 1,236,929,000$ | 1,200,665,000$ | 1,140,647,000$ | 1,045,026,000$ | 1,000,339,000$ | 1,013,402,000$ | 987,904,000$ | 965,524,000$ | 955,015,000$ | 918,136,000$ |
| Additional Paid-In Capital | | 1,088,047,000$ | 1,084,821,000$ | 1,081,954,000$ | 1,078,253,000$ | 1,075,537,000$ | 1,069,258,000$ | 1,065,937,000$ | 1,063,508,000$ | 1,060,289,000$ | 1,057,433,000$ | 1,054,871,000$ | 1,052,802,000$ | 1,050,231,000$ | 1,048,444,000$ | 1,046,303,000$ | 1,043,707,000$ | 1,041,304,000$ | 1,039,146,000$ | 1,037,088,000$ | 1,034,225,000$ | 1,025,163,000$ | 1,021,798,000$ | 1,019,291,000$ | 935,924,000$ | 927,337,000$ | 921,682,000$ | 917,855,000$ | 913,917,000$ | 911,748,000$ | 907,690,000$ | 904,913,000$ | 898,036,000$ | 894,879,000$ | 889,886,000$ | 887,305,000$ | 627,015,000$ | 545,775,000$ | 540,549,000$ | 535,568,000$ | 531,357,000$ | 528,015,000$ | | | | 409,984,000$ | | | |
| Retained Earnings | | 1,387,636,000$ | 1,357,973,000$ | 1,327,660,000$ | 1,300,658,000$ | 1,275,331,000$ | 1,249,793,000$ | 1,230,133,000$ | 1,205,994,000$ | 1,188,869,000$ | 1,179,196,000$ | 1,159,126,000$ | 1,134,527,000$ | 1,152,452,000$ | 1,123,641,000$ | 1,098,664,000$ | 1,082,107,000$ | 1,058,286,000$ | 1,037,936,000$ | 1,015,742,000$ | 990,504,000$ | 960,183,000$ | 936,273,000$ | 915,392,000$ | 902,148,000$ | 882,851,000$ | 861,254,000$ | 843,288,000$ | 817,933,000$ | 795,563,000$ | 774,403,000$ | 750,779,000$ | 723,404,000$ | 700,557,000$ | 645,180,000$ | 627,228,000$ | 626,258,000$ | 614,692,000$ | 602,513,000$ | 589,559,000$ | 577,384,000$ | 566,591,000$ | 560,021,000$ | 547,769,000$ | 536,056,000$ | 525,985,000$ | 515,040,000$ | 504,860,000$ | 492,550,000$ |
| Treasury Stock | | 110,945,000$ | 110,901,000$ | 99,867,000$ | 99,825,000$ | 100,539,000$ | 100,492,000$ | 100,446,000$ | 89,027,000$ | 55,592,000$ | 51,198,000$ | 46,038,000$ | 36,325,000$ | 26,485,000$ | 26,426,000$ | 26,369,000$ | 13,464,000$ | 10,610,000$ | 5,693,000$ | 5,632,000$ | 5,572,000$ | 6,198,000$ | 6,131,000$ | 6,066,000$ | 6,005,000$ | 6,823,000$ | 6,875,000$ | 8,797,000$ | 9,601,000$ | 11,528,000$ | 14,803,000$ | 15,334,000$ | 17,633,000$ | 21,014,000$ | 22,440,000$ | 23,523,000$ | 14,028,000$ | 15,160,000$ | 13,428,000$ | 13,929,000$ | 13,961,000$ | 17,637,000$ | 24,044,000$ | 25,453,000$ | 27,269,000$ | 20,391,000$ | 16,982,000$ | 16,982,000$ | 17,115,000$ |
| Capital Lease Obligations | | 56,728,000$ | | | | 48,947,000$ | | | | 41,409,000$ | | | | 31,091,000$ | | | | 32,833,000$ | | | | 35,857,000$ | | | | 40,913,000$ | 42,769,000$ | 38,368,000$ | 35,630,000$ | | | | | | | | | | | | | | | | | | | | |