Daniel Horst, Assessor
488 State Route 295
Chatham, NY 12037
Tel: (518) 392-2550
Fax: (518) 392-4934
Additional Hours Available by Appointment
Upcoming Dates for 2020
Update for Agricultural Exemption:ASAP
Only property owners who receive a letter in the mail from the Assessor's Office are required to fill out a new RP-305.
Application deadline for all exemptions: March 1
Grievance Day May 26, 2020 (Hearings at 2-5PM and 7-9PM)
Please do not think that you need to wait until May to grieve your assessment! Property owners are encouraged to contact the Assessor at any time to discuss their concerns.
Helpful Forms and Information
Assessment vs. Taxes: What's the difference? NYS Pub 1110
Agricultural Assessment Application Form: RP-305
Grievance Form: RP-524
See other forms on the Exemption Information page.
Real Property Tax Assessments: Link
Columbia County Real Property Tax Service Agency: Link
New York State Department of Taxation and Finance: Link