IMPORTANT - FOR PARCELS SOLD AT THE SEPTEMBER 2026 AUCTION
Information regarding potential surplus funds can be found by clicking here: 2026 Tax Auction Information | Sullivan County NY
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DELINQUENT COUNTY/TOWN TAXES ARE AVAILABLE FOR VIEWING ONLINE.
The Sullivan County Treasurer is now collecting 2026 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:
SULLIVAN COUNTY REAL PROPERTY INFORMATION
Provides in-depth information on Sullivan County properties, including assessment information and tax maps.
