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Tax Collector

PO Box 240, 4052 State Route 42, Monticello, NY 12701

845-794-2500 Ext. 320


Office Hours
Tax Season Hours
Monday-Friday 9am-3pm

The Tax Receiver collects the General Property Taxes in January. The bills are mailed in early January. The failure to mail a statement or the failure of a property owner to receive a statement will not affect the validity of the taxes or interest prescribed by law (NYS Real Property Tax Law 922). If you have not received a bill during the first week of January, please contact this office for a duplicate bill. The tax bill covers the period of January 1st – December 31st. Payments can be made upon receipt of bill through January 31st, without penalty. If they are paid on/or after February 1st, there is a penalty, see below:

  • February 1%
  • March 2% plus $2 second notice fee

After March 31st, all unpaid parcels are turned over to Sullivan County for collection. You may contact the County Treasurer’s Office at 845-807-0200 to inquire about the tax amount due. You can mail your payments after April to:

Sullivan County Treasurer
100 North Street
Monticello, New York 12701

The Tax Receiver is also responsible for the collection of the Town of Thompson’s water and sewer districts’ bills that are distributed separately. Collection is ongoing from February until September 30 annually.

Tax Collector Contacts

Heather Berg
Tax Receiver
845-794-2500 Ext. 320

Additional Information

Property tax information is available on the web (this site is maintained by my office until April 15th).  New owners, subdivisions, or property merges are not shown until the following year.  To access your tax bill, log into www.Taxlookup.net. Once you reach the website, select Sullivan County and then the Town of Thompson.  You can then access the tax bill by entering owner name, section, block, lot #, tax bill number or property address.

Credit card and debit card online payments can be made paid in full for the amount due according to your tax bill. Log into http://www. Taxlookup.net.  You can then access the tax bill by entering owner name, section, block, lot #, tax bill number or property address. You will see a button at the bottom of your property information page marked “Proceed to Payment”.  There is a service fee of 2.65% on the full tax amount. Note: Partial payments cannot be made using this method.  Partial payments by credit or debit card can be made in person at the Town Hall or by calling the Tax Receiver at 845.794.2500, extension 320.

Payments may be made in person by check or cash and are accepted during the hours listed above.  Payments can also be made by mail to: Town of Thompson Tax Receiver, PO Box 240, Monticello, New York 12701.  Please reference your SBL# (Section, Block and Lot) on your check.

Payments may be made by ACH or Wire.  Please email the Tax Collector at taxcollector@townofthompson.com or call  845-794-2500, extension 320 for the banking information. If you elect to pay by wire, you must pay any fees associated with this method of payment.

The property tax bill contains levies for the Town, County, Fire District and any special districts.  In addition, if school or sewer bills are unpaid, they will be re-levied on the Property Tax Bill.

The Town of Thompson Tax Office does not collect School Taxes for the School District.  School tax bills are mailed in early September.  The due date is specified on the bill.  Please contact your school tax office with any questions you may have; Monticello Central School District at 845-794-1515 or online at Monticello, Liberty Central School District at 84