Nassau County, NY


Welcome to the Nassau County Department of Assessment’s online Annual Survey of Income and Expense form.

All ASIE 2015 filings must now be submitted through our online application found here ASIE 2015.

Should you need support or to request a filing extension contact us here:  ASIE@NassauCountyNY.Gov

To request a waiver of Electronic Filing for good cause please make your request in writing to:

Department of Assessment
240 Old Country Road – 4th Floor
Mineola, NY 11501
Attn: E-File Waiver 

The filing of the Annual Survey of Income and Expense (ASIE) with the Department of Assessment is mandatory as required under Section 6-30 of the Nassau County Administrative Code.

The purpose of the survey is to gather data for statistical analysis that will help establish the full market value of all class 4 properties. The data collected will be used to analyze changes and trends in the levels of income and expense of class 4 commercial properties, countywide. The information provided will aid in the development of departmental schedules and guidelines that will result in fairer and more equitable assessed values for all Class 4 properties.


Click Here to enter for 2015 ASIE online!

Click Here to enter the 2014 ASIE online!

Click Here to enter the 2013 ASIE online!