Welcome to Real Property
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Our department is designed to function as an advisory and assessment arm of the County Government, providing a multitude of administrative, training, and technical services to local government, assessing officials, and the general public. All responses are directed towards customer satisfaction with the objective of providing an understanding of how NYS Real Property Tax Law is to be applied equitably and uniformly. 


The New York State Department of Taxation and Finance has revised the current RP-5217 form. The new form is a down-loadable, bar-coded form. All filers should begin submitting the new PDF version of the RP-5217 form with their deed transaction. The form will need to be created on your computer using the link below in order for the bar code to be generated. It should not be handwritten or typed. You must print the form as an 8.5 X 14 inch legal size document.  Effective April 1, 2014 the Niagara County Clerk's Office will only accept the new RP-5217-PDF form.  The old 4-part forms will NOT be accepted.

Further instructions can be obtained from the State's website - NYS Department of Taxation RP-5217-PDF

NEW - Niagara County has adopted the Green Buildings Exemption (LEED), it will be effective for the 2015 Tax Roll.  Details and application are in the "COUNTY EXEMPTIONS" link below.

Parcel Information

Tax Mapping 


County Exemptions 

Tax Statistics Report




Tentative Assessment Roll 

Final Assessment Roll

Scholarship Information

Archived Documents 

Tax Auctions


RPT Services



 Tax Rates

Tax Rates


Real property tax Building

We are located on the first floor of the Philo J. Brooks Building
59 Park Avenue, Lockport, NY 14094.

Telephone: 716.439.7077
Fax: 716.439.7067

Normal Hours: 8:30 AM to 4:30 PM EST
Monday through Friday

For Delinquent Tax amounts,
please call the Niagara County
Treasurer's Office at 439-7007.

For information regarding the REAL PROPERTY TAX CAP,              see the NYS Comptrollers website for details. 


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