Tax base growth factors for counties
| County name | Tax base growth factor |
| Albany | 1.0054 |
| Allegany | 1.0011 |
| Broome | 1.0024 |
| Cattaraugus | 1.0044 |
| Cayuga | 2026 assessment data not reconciled |
| Chautauqua | 1.006 |
| Chemung | 1.0015 |
| Chenango | 1.0000 |
| Clinton | 1.0036 |
| Columbia | 1.0088 |
| Cortland | 1.0072 |
| Delaware | 1.0038 |
| Dutchess | 1.009 |
| Erie | 1.0053 |
| Essex | 1.0058 |
| Franklin | 1.0053 |
| Fulton | 1.0072 |
| Genesee | 1.005 |
| Greene | 1.0104 |
| Hamilton | 1.0049 |
| Herkimer | 1.0032 |
| Jefferson | 1.0072 |
| Lewis | 1.0106 |
| Livingston | 1.006 |
| Madison | 1.0062 |
| Monroe | 2026 assessment data not reconciled |
| Montgomery | 1.0184 |
| Nassau | 2026 assessment data not reconciled |
| Niagara | 1.0056 |
| Oneida | 1.0042 |
| Onondaga | 1.0044 |
| Ontario | 1.0079 |
| Orange | 1.008 |
| Orleans | 1.0033 |
| Oswego | 1.0056 |
| Otsego | 1.0042 |
| Putnam | 1.0059 |
| Rensselaer | 1.0072 |
| Rockland | 1.0061 |
| Saratoga | 1.0122 |
| Schenectady | 1.004 |
| Schoharie | 1.0048 |
| Schuyler | 1.0074 |
| Seneca | 1.0039 |
| St. Lawrence | 1.0115 |
| Steuben | 2026 assessment data not reconciled |
| Suffolk | 1.005 |
| Sullivan | 1.0092 |
| Tioga | 1.002 |
| Tompkins | 1.0083 |
| Ulster | 1.0098 |
| Warren | 1.0067 |
| Washington | 1.0097 |
| Wayne | 1.0083 |
| Westchester | 2026 assessment data not reconciled |
| Wyoming | 1.0031 |
| Yates | 1.0096 |
Updated: