Timothy McGowan
Acting Assessor
Email: assessor@townofrocklandny.com
Office of Assessor
95 Main St
Box 885
Livingston Manor, NY 12758
Phone: 845-439-3730 ext 107
Fax: 845-439-5270
Office Documents and Links
https://www.co.sullivan.ny.us
Assessment Roll (page opens in new window or tab)
Tax Maps
How the Property Tax Work (New York State Link /PDF)
What to Do If You Disagree with Your Assessment (New York State Link / PDF)
Important Dates to Remember
- March 1: Taxable Status Date – All Exemption Applications and renewals are due in the Assessor’s Office
- April 1: Inventory for Assessments are available for review
- May 1: Tentative Roll Filed
- May, Fourth Tuesday: Grievance Day – Last day to file a grievance form to be reviewed by the Board of Assessment Review
- July 1: Final Roll Filed, Valuation Date
Exemption forms may be downloaded from
The New York State Department of Taxation and Finance