Online ASIE Forms

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.