Sullivan County Treasurer & Tax Collector

Find Sullivan County New York treasurer, tax collector, tax assessor, and property assessor. Treasurers and tax collectors provide information on property searches, tax bills, property liens, tax assessed values, and deductions.


Harleysville Collector 8 Brickman Road Fallsburg NY 12733 845-434-8810


Liberty Town Tax Collector 120 North Main Street Liberty NY 12754 845-292-5744

Sullivan County Treasurer's Office PO Box 5012 Monticello NY 12701 845-807-0200

White Lake Tax Collector 3454 State Route 55 White Lake NY 12786 845-583-4740

Treasurers & Tax Collectors by City

What forms of payment are accepted by Tax Collectors?

Tax Collectors will generally accept cash, personal checks, and credit card payments. Many will also offer online payments using electronic checks, credit cards, or PayPal. It is common for a convenience charge to be added to online payments.

What are special assessments?

Special assessments are additional charges on a property, which are usually associated with a public improvement that benefits certain property owners, such as a sewer assessment. Special assessments are usually added to the owner's property tax bill.

What are supplemental tax bills?

Supplemental tax bills are additional property tax bills that result from a re-appraisal of a property, usually because of a transfer of ownership or a physical improvement or expansion to the property. If the reappraisal determines that additional taxes are owed, a supplemental tax bill is issued.