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Tax Installment Agreements


The Sullivan County Treasurer, as the Enforcing Officer for the County of Sullivan, has the authority to prepare and execute Installment Agreements with eligible owners for the payment of eligible delinquent taxes on residential properties over an extended period (24 months) in accordance with §1146 and §1184 of the Real Property Tax Law and Local Law of the County of Sullivan.

Any owner of residential property with a tax delinquency greater than $500.00 but less than $30,000.00 shall be permitted to enter into an Installment Agreement to cure a tax delinquency at any time until the date of redemption, subject to the restrictions set forth by Law.


  • Once a property is subject to an Installment Agreement, the Agreement cannot be modified to add future unpaid taxes or past-due payments. Entering into an Installment Agreement should be considered a final course of action and used only when all other options have failed.
  • Only delinquent taxes on residential properties may be included in an Installment Agreement.  Current taxes that are due and payable to the Town during January, February and March cannot be included in an Installment Agreement.
  • If a property owner owns more than one parcel within the tax district in which there is a delinquent tax lien, the owner shall be required to address all of said parcels with delinquent taxes by entering into an Installment Agreement for each parcel or paying the taxes in full.
  • Eligible owners shall be permitted to include no more than five (5) parcels in Installment Agreements at any one time and the total delinquent taxes shall not exceed $30,000.00.  An individual may not sign more than five (5) Installment Agreements with the County, regardless of the form of ownership.
  • Installment Agreements made by the County of Sullivan are for County/Town taxes only. If your property is located within a village in Sullivan County, you must contact the village for tax information. County Installment Agreements do not include Village taxes.
  • The required down payment is 15-25% of the total delinquent taxes and must be paid with guaranteed funds only (cash, bank check, money order, Visa, MasterCard or Discover). Personal checks will not be accepted. Down payments paid by credit card are subject to a 2.75% convenience fee charged by credit card provider.
  • The balance of delinquent taxes, after the down payment, shall be due and payable in twenty four (24) monthly installments until paid in full, together with interest (currently 12% per annum).
  • Each installment payment shall be due on the last day of the month. If any installment is not paid by the 15th calendar day after the payment due date, a late charge of 5% of the overdue payment shall be added.
  • All taxes must remain current on all properties owned by the taxpayer, whether or not the property is included in the taxpayer’s Installment Agreement. School taxes must be paid on time to the respective School (bills are issued in September each year) and Town/County taxes must be paid on time to the respective Town (bills are issued in January each year).
  • Failure to stay current with all future taxes and monthly payments may result in foreclosure or other legal remedy authorized by law.
  • If a property owner enters into an Installment Agreement for the current year’s tax lien prior to November 1 of that year, the $250.00 court-ordered foreclosure search fee shall be added at the signing of the Agreement. The parcel(s) will be included in the foreclosure proceeding to be commenced for that lien year pursuant to RPTL §1123 (generally October of the following year) but the County will not foreclose on the parcel(s), so long as the Agreement is in good standing and is not in default.

For further information on installment agreements, contact the Treasurer’s Office at (845) 807-0200 or by email: