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Sullivan Launches New Tax Lookup Site

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Monticello, NY – Sullivan County Treasurer Nancy Buck is pleased to announce a new way for the public to access tax records.

“We’ve worked closely with Total Collection Solution, an upstate-based company, to create and test this web-based platform,” explained Buck. “It’s a truly ‘live’ system, with real-time updating of data, including recent payments.”

Accessible at, the site replaces as the go-to location for Sullivan County tax data. To log in, type “sullivan-public” in the username field, and “public” in the password field.

Properties in all 15 townships are available to review. ( information will no longer be updated for Sullivan County, though historical records may continue to be available.)

Note that the County Treasurer’s Office only collects delinquent taxes (taxes from 2023 and earlier). Taxpayers should pay their 2024 County/Town taxes directly to the Town in which their property is located.

“Most towns are also setting up their own web-based portals to this new system,” noted Deputy County Treasurer Kathleen Lara, “so that property owners can more directly access their data through their respective town websites.”

The County Treasurer’s Office welcomes questions at 845-807-0200 or by visiting the office.