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Assessor's Office
Town Hall Annex - brick building with white trimResponsibilities of the Office
My staff and I welcome you. Our office is available to assist you in any way possible with the assessment policies and procedures governed by the New York State Real Property Tax Law.

Our department is responsible for determining and maintaining assessments, property inventory records, and identifying ownership interest on approximately 43,000 parcels. The office annually processes over 3,000 deeds or property transfers. This process involves reviewing deeds, adjusting parcel sizes, and transferring ownership interest on our records. Our staff provides this information to taxpayers, appraisers, bankers, realtors, attorneys, and others. We also administer various real property tax exemptions available to eligible property owners.

Reviewing Building Permits
In addition, we are advised of all building permits issued by the Town of Smithtown and local villages. Our appraisal staff reviews and evaluates each of these permits for either inventory or assessment changes. This process also requires our appraisal staff to produce a supportable and defensible estimate of value from each permit. This value then becomes the new assessment. Homeowners receive notification of any change in assessment by the issuance of assessment certificates in connection with the certificates of occupancy issued by the Building Department.

We pride ourselves on providing friendly service for each and every individual.

Monday - Friday
9:00 am - 5:00 pm 

Summer Hours
(July 1 - August 31)
Monday - Friday
9:00 am - 4:00 pm

Peter D. Johnson Esq. IAO


Town Hall Annex
40 Maple Ave.
Smithtown, NY 11787 

Ph: (631) 360-7560
Fax: (631) 360-1704