| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| INTEREST AND DIVIDEND INCOME | | | | | | | | |
| Loans | 238.3 | 227.3 | 217.6 | 211.8 | 210.5 | 211.6 | 214.7 | 161.6 |
| Due from banks | 0.6 | 0.5 | 0.4 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| |
| Available-for-sale debt securities | | | | | | | | |
| Held-to-maturity securities | | | | | | | | |
| Federal Home Loan Bank and other stock | | | | | | | | |
| Interest income | 272.3 | 261.4 | 251.3 | 244.4 | 241.9 | 240.7 | 241.3 | 244.1 |
| |
| INTEREST EXPENSE | | | | | | | | |
| Time certificates of deposits of $250,000 or more | 5.8 | 3.7 | 2.3 | 1.9 | 1.8 | 2.0 | 2.2 | 1.7 |
| Federal funds purchased and securities sold under agreements to repurchase | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 |
| Total Interest Expense | 50.8 | 33.5 | 21.0 | 13.6 | 13.1 | 15.4 | 17.5 | 14.7 |
| Net Interest Income | 221.5 | 227.9 | 230.3 | 230.8 | 228.8 | 225.4 | 223.8 | 223.7 |
| |
| Less: Provision for credit loss expense | | | | | | | | |
| Net Interest Income After Credit for Credit Loss Expense | 217.7 | 225.4 | 227.5 | 225.5 | 225.8 | 226.3 | 226.0 | 172.1 |
| |
| NONINTEREST INCOME | | | | | | | | |
| Insurance commissions and fees | 36.6 | 36.4 | 36.2 | 36.4 | 35.4 | 35.0 | 34.8 | 27.1 |
| Service charges on deposit accounts | 7.2 | 7.3 | 7.4 | 7.2 | 6.9 | 6.7 | 6.3 | 6.2 |
| Card services income | 11.3 | 11.2 | 11.0 | 11.0 | 11.0 | 11.0 | 10.8 | |
| Other income | 6.8 | 6.4 | 5.9 | 5.5 | 6.3 | 6.7 | 7.2 | 5.4 |
| Total Noninterest Income | 72.1 | 78.4 | 78.0 | 78.8 | 78.9 | 78.9 | 78.8 | 78.5 |
| |
| NONINTEREST EXPENSE | | | | | | | | |
| Salaries and wages | 100.4 | 99.5 | 98.3 | 97.6 | 97.1 | 96.7 | 96.0 | 71.5 |
| |
| Other employee benefits | | | | | | | | |
| Net occupancy expense of premises | 13.0 | 12.9 | 13.1 | 13.1 | 12.8 | 13.3 | 13.2 | 10.0 |
| Furniture and fixture expense | 8.2 | 8.1 | 8.1 | 8.2 | 8.2 | 8.4 | 8.3 | 6.2 |
| Amortization of intangible assets | 0.6 | 0.7 | 0.9 | 1.0 | 1.1 | 1.2 | 1.3 | 1.4 |
| Other operating expense | 53.4 | 51.9 | 50.5 | 49.0 | 50.9 | 48.6 | 47.3 | 35.5 |
| Total Noninterest Expenses | 201.9 | 199.1 | 195.8 | 193.7 | 194.3 | 192.6 | 190.3 | 188.7 |
| Income Before Income Tax Expense | 87.8 | 104.7 | 109.7 | 110.6 | 110.4 | 112.5 | 114.6 | 89.7 |
| Income Tax Expense | 18.9 | 23.5 | 24.6 | 25.5 | 25.3 | 25.5 | 25.2 | 25.9 |
| Net Income Attributable to Noncontrolling Interests and Tompkins Financial Corporation | 68.9 | 81.3 | 85.2 | 85.1 | 85.1 | 87.0 | 89.4 | 69.9 |
| Less: Net Income Attributable to Noncontrolling Interests | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Net Income Attributable to Tompkins Financial Corporation | 68.7 | 81.1 | 85.0 | 84.9 | 84.9 | 86.9 | 89.3 | 69.8 |
| |
| Basic Earnings Per Share (in dollars per share) | $4.80 | $5.66 | $5.92 | $5.89 | $5.86 | $5.96 | $6.08 | $6.35 |
| Diluted Earnings Per Share (in dollars per share) | $4.78 | $5.64 | $5.89 | $5.86 | $5.83 | $5.92 | $6.04 | $6.32 |