NOTE: The Sullivan County Treasurer has recently commenced the In Rem Tax Foreclosure proceeding for unpaid 2024 and earlier taxes. A copy of the Petition and Notice of Foreclosure can be found by clicking this link: Petition and Notice of Foreclosure
If you are a homeowner and are in danger of foreclosure, please visit the following link for important information: Important Information for Homeowners
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Click here if you received a letter concerning your short-term rental.
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DELINQUENT COUNTY/TOWN TAXES ARE AVAILABLE FOR VIEWING ONLINE.
The Sullivan County Treasurer is now collecting 2025 and earlier County/Town taxes. Payments cannot be made online and must be made directly to the Sullivan County Treasurer's Office.
User Name: sullivan-public
Password: public
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Payment of taxes due can be made by check or money order via:
Mail – payable to the Sullivan County Treasurer, PO Box 5012, Monticello, NY 12701
In person at the Treasurer’s Office on the first floor of the Government Center
For any further questions contact our office: 845-807-0200
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Useful Links:
IMAGE MATE ONLINE
Provides in-depth information on Sullivan County properties, including assessment information and tax maps.
