Connecticut payroll tax form information

Alerts and notices

Select a state from the drop-down list or visit the State-specific payroll tax form information topic to view payroll tax form information for that state.

Unemployment forms

Agency: Connecticut Department of Labor

Website: http://www.ctdol.state.ct.us/index.htm

Description Approval Information Filing Methods Web fill-in Form Due Date
UC2 Approved Web fill-in, Electronic No Last day of the following month*
UC5A Approved Web fill-in, Electronic No Last day of the following month*
UC-5B Approved Web fill-in, Electronic No Last day of the following month*

* Due date adjusts for non-banking days

Withholding forms

Agency: Department of Revenue Services

Website: http://www.ct.gov/drs/site/default.asp

Description Approval Information Filing Methods Web fill-in Form Due Date
CT-941 Non-submittable only Web fill-in, Electronic No Last day of the following month*
CT-W3 (drs) Approved Paper, Internet No January 31st*
W-2 Copy 1 Available up to 2020 (No approval required) Paper, Internet No January 31st*

* Due date adjusts for non-banking days

Other forms

1099 forms

Description Approval Information Filing Methods Web fill-in Form Due Date
1099-MISC No approval required Internet No January 31st
1099-R No approval required Internet No January 31st
W-2G No approval required Internet No January 31st

See also: State 1099 files overview

Notes:

  • 1099-MISC is created when client or recipient is located within the state.
  • 1099-R is created only when the forms include state withholding amounts.
  • W-2G is created when recipient is located within the state.

State website: www.ct.gov/drs/

E-filing notes

Forms CT-UC2, CT-UC5A, UC-5B, CT-941, and CT-WH

Registration required - No

File format - FSET

Note: The per-return transmission cost for electronically filing federal 94x forms is $7; enrollment files do not accrue a fee.There is no additional transmission cost for electronically filing state forms. For more information, see Common questions about FSET.

Form CT-W3

  • Registration with the State of Connecticut is required to become a bulk filer prior to sending CT-W3 files.
  • File format - comma-delimited
  • Navigate to the Connecticut Department of Revenue website, choose Taxpayer Service Center, and then click the Tax Preparer link to log in and upload your file.

State ID formats

Unemployment ID: 7 digits formatted as ##-###-## (Example: 12-345-67)

Withholding ID: You can use one of the following formats.

  • 10 digits formatted as #######-###
  • 11 digits formatted as ########-###
  • 13 digits formatted as ##########-### (Example: 1234567-890)

New hire reporting

Reporting methods

File Upload Type: Magnetic

General reporting requirements

Electronic filing required: No
Filing frequency: 20 days from hire date
Registration required: No

Website:

Related topics

State-specific payroll tax form information

Processing state payroll tax forms

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