Federal State Employment Tax (FSET) information for software developers
New York State participates in the Fed/State Employment Taxes (FSET) program for quarterly withholding tax and unemployment insurance filings and payments.
Publication 120 helps software developers implement the FSET program with New York State. (Updated May 13, 2015)
FSET Error Codes
See the reject codes that can cause New York State to reject FSET filings. (Updated December 15, 2015)
NYS FSET Field Definitions and Rules
NYS FSET spreadsheet (Updated August 17, 2016)
E-File Signature Document (TR-579-WT)
The ERO will complete this document. Tax preparation software must provide this document.
Use the FSET schema to develop your tax preparation software. (Updated October 25, 2013)
FSET Approved Vendors
For a current list of vendors approved by New York State, please view the FSET Approved Vendors pages.
Send all questions to NYSTAXFSET@tax.ny.gov