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FSET (Federal/State Employment Taxes)

A partnership among the Internal Revenue Service (IRS), the Connecticut Department of Labor (DOL), the Connecticut Department of Revenue Services (DRS), and the desktop payroll software community resulted in the Federal/State Employment Taxes (FSET) program which supports payment and filing of employment taxes over the Internet.


The mission of the FSET program is to reduce employer burden by simplifying the process for the quarterly filing of state and federal tax and wage reports and making employment tax payments. The program seeks to facilitate the development of commercial software applications for the single point electronic transmission of employer quarterly tax and wage reports that satisfy both state and federal obligations.


The program is open to software developers, transmitters, and payroll service providers who will act as "reporting agents."


Use FSET to file the following returns safely and securely:

  • Federal Payroll taxes (Forms 940 and 941)

  • CT Payroll Withholding taxes (Forms CT-941 and CT-W3),

  • CT Unemployment taxes (Forms UC-2 and UC-5a)

  • Payments associated with Withholding and Unemployment taxes

If you have a question, comment, or suggestion regarding the FSET Program, e-mail us at:


Click here to see Approved FSET Vendors.



FSET Frequently Asked Questions


Why should I use FSET?

  • Fast - "One-stop shopping" for filing your returns!

  • Easy - Your payroll provider will seamlessly transmit all payroll tax information to the IRS, DRS, and DOL without reentering the data.

  • Economical - Elimination of printing and submitting of tax documents to the taxing authorities.

  • Secure - FSET uses the highest levels of security available to protect the confidentiality of taxpayer information.

  • Error free - Eliminates duplication and manual processes which greatly reduces the chance of error.

  • On-line navigation and help tools available.

  • Convenient - FSET is available for filing returns 24 hours a day, 7 days a week.

  • Approved FSET Vendors

What returns can I file using FSET?


FSET allows taxpayers to file to following returns:

  • Form CT-941, DRS Connecticut Quarterly Reconciliation of Withholding

  • Form CT -W3, DRS Connecticut Annual Reconciliation of Withholding

  • Form UC-2, DOL Employer Contribution Return
  • Form UC-5a, DOL Employee Quarterly Earning Report

  • Form 941, IRS Employer's Quarterly Federal Tax Return

  • Form 940, IRS Employer's Annual Federal Unemployment Tax Return (FUTA)

  • Associated Payments for Above Forms

  • Bulk Electronic Payments

How do I make payments using FSET?


All balances due must be paid electronically using direct payment.  Direct payment allows you to file returns at your convenience and have payments "warehoused" until a later date.  Payment can be transferred from your bank account to DRS or DOL any day up to the legal due date of the return. If you are currently a registered user of the Connecticut Electronic Funds Transfer (EFT) program, you may make FSET payments using EFT.

Who is eligible to use FSET?


The FSET schemas and standards are designed to be used by software developers, transmitters, and payroll service providers to enable any business to file its payroll tax returns and payments.

Transmission using FSET may be either by an individual employer or a third party, using the required XML record format.


If your company is interested in using FSET for the quarterly filing of state and federal tax and wage reports and making employment tax payments ask your payroll company to contact the DRS to get involved or contact an Approved FSET Vendor.


What is required to use FSET?


Both the DOL and DRS must approve the transmitter responsible for submitting FSET data to the State of Connecticut as well as the software that generates the files.  The FSET XML schemas and the State User Guide as well as information for IRS e-file for Business Software Developers and Transmitters  are housed on the IRS Web site.


Who offers FSET?

  • For Employers: Approved FSET Vendors.

  • For Software Developers and Payroll Service Providers interested in participating in the FSET program, please contact the Tax Automation Unit at 860-263-6375 or by e-mail

200 Folly Brook Boulevard, Wethersfield, CT 06109 / Phone: 860-263-6000

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