Monday - Friday
8:30 - 2:00

(973) 948-3520

133 Route 645
Sandyston, NJ  07826

Tax Assessor

Tax Assessor Office

Kathleen DeKorte, Tax Assessor

973-948-3520 x203

Hours:  Tuesday 8 am to 11 am

State of New Jersey Division of Taxation

Sussex County Board of Taxation


Address:  83 Spring Street, Suite 301, Newton, NJ 07860
973-579-0970 Fax: 973-579-0977
Hours: Monday-Friday 8 a.m. - 4 p.m. except holidays

Sussex County Board of Taxation Website 

Farmland Application Forms

New Jersey's Farmland Assessment Act, administered by the New Jersey Department of Treasury, provides for lower assessment based on productivity of farmland if it meets specific eligibility criteria. To qualify for the tax assessment reduction, a landowner must have no less than five acres of farmland actively devoted to an agricultural or horticultural use for the two years immediately preceding the tax year being applied for and meet specific minimum gross income requirements based on the productivity of the land.

Farmland Assessment paperwork is due to the Office of the Assessor in Sandyston Township no later (hard deadline) by August 1 each year. 

State of New Jersey, DEP, NJ Forest Service, Farmland Assessment Info

State of New Jersey, Department of Agriculture

Application for Farmland Assessment (FA-1)

Woodland Data Form (WD-1)

Woodland Management Plan Checklist 

Supplemental Gross Sales Form 

Farmland Assessment Program Guidance (

State of New Jersey, Department of Agriculture "Jersey Grown" Program 

Change of Ownership

Tax bills should be given to the new owner or his paying agent, upon closing. 

Please be advise, the Sussex County Clerk's Office records all deeds in Sussex County and advises the Tax Assessor of all changes.  Once notified, the Tax Assessor updates the MOD-V reflecting a change of ownership in our system.  Please note, due to the abundance of home sales in Sussex County, the recording of deeds is behind and it could take several months to see this change show up in our system.  
Thank you for your patience.

Change of Address Requests

Address changes must be submitted in writing by the property owner (email Tax Assessor or email Municipal Clerk, fax (973-948-0783), or mail).

It is always best to follow up with the Tax Assessor/Municipal Clerk to be sure your request has been received and to verify that you did in fact request this change.