Federal/State Employment Tax (FSET) information for software developers
Changes to withholding tax and wage reporting forms and Web File applications are here!
We’ve updated our website, publications, and other content to reflect these changes. For an overview of what’s different, see March 2025 changes to withholding tax and wage reporting.
New York State participates in the Federal/State Employment Taxes (FSET) program for quarterly withholding tax and unemployment insurance filings and payments.
Documentation
FSET handbook
Publication 120 helps software developers implement the FSET program with New York State. (updated January 2025)
FSET error codes
See the reject codes that can cause New York State to reject FSET filings. (updated March 26, 2025)
NYS FSET field definitions and rules
See the NYS FSET spreadsheet for help completing fields. (updated March 6, 2025)
E-file signature document
The ERO will complete document TR-579-WT and tax preparation software must provide this document as well.
FSET schema
Use the FSET schema to develop your tax preparation software. (updated October 24, 2024)
FSET-approved vendors
For a list of FSET software products you may use, see Approved vendors for FSET.
Questions?
Send all questions to NYSTAXFSET@tax.ny.gov