CT UC-2/5A/5B - Bulk File Upload Support

Greg Hatfield Updated by Greg Hatfield

Effective July 5, 2022, the old website for filing UI returns was replaced with the new system ReEmployCT. See the information and links below.

All employers must file UI tax and wage reports and make UI payments electronically.

In order to comply with this mandate, several options are available and are outlined below.

Connecticut's online filing system (ReEmployCT); this system allows you to file and pay your quarterly returns one of two ways:

1. File Tax and Wage Report. This option is preferred by employers filing for their own company and agents filing for a small number of employers with a few employees each. This method requires that you manually enter quarterly wage detail (names and SS#s reported in the previous quarter will be brought up automatically) and the system will calculate any taxes due (or you can override if necessary). The benefit of this method is that there are a number of built-in safeguards that prevent errors such as use of an incorrect registration number, which can result in delays in the posting of the return and subject you to additional fees, as well as payment at an incorrect tax rate; underpayments are subject to interest and penalty charges.

2. Upload Tax and Wage Report File. CFS supports this option. This option is generally preferred by agents filing for multiple employers and employers with more than 20 employees as it eliminates manual entry. This is a bulk filing option so employers should be combined into as few files as possible and not filed separately. This method requires registering on ReEmployCT as a Third-Party-Agent.

For further information regarding the differences between the two methods, as well as other services available through ReEmployCT, please use the links below:

See the TPA User Guide on the following link.



CFS supports the bulk filing method by creating a file according to the Connecticut specifications at this link.

Register with ReEmployCT. Follow the steps below to create and submit files containing Form UC-2/5A/5B files for uploading.

Zero Returns - Zero or No Payroll returns CAN now be filed using bulk files. See the specifications link above.

STEP 1 - First create and save Form UC-2/5A/5B data files as if you were submitting them on paper using the module on the Module Library labeled CT Form UC-2/5A/5B - Employer's Quarterly Contribution Return and Earnings Report. Verify that the forms are complete and correct. 

STEP 2 - Create a bulk file for uploading. On the CT UI Bulk Filing screen, select the filing quarter in the dropdown list. Employers with saved Form UC-2/5A/5B data files will be marked "Ready" (see later under Status Column for an explanation) and automatically checked to be included in the file. Uncheck the box next to the employers you do NOT want to include in the file. Click the ''Create File'' button to create the file. The file name and path will automatically be established for you using a default file name. CFS recommends that you use the default file name and path, but the file must end in .txt.

When the file is successfully created, the correct file name will be copied to the computer clipboard. This allows you to use CTRL+V to paste the file name into the browse window when selecting the file to upload. To use this shortcut, the file must be created right before uploading it.

STEP 3 - If desired, you can review the files by double-clicking the file name displayed next to the employer name in the list. The file will be displayed in Notepad. Close the Notepad file when finished.

STEP 4 - If you want to have the program enter your login information automatically on the CT website, then first click the Store Login Info button and enter your CT ID and Password. Then click the Login button to load the ReEmployCT login website into your internet browser. Do not click the screen or type any characters. After a 5 second delay the program will automatically attempt to type your login information into the login screen. If the program does not successfully enter the login information into the login screen, there could be several reasons. 1) The screen loaded too slowly. The user can try to lengthen the default 5 second delay. Click the Store Login Info button and change the delay seconds number. 2) The user inadvertently clicked something on the screen or pressed a key before the login information was sent. Try it again. 3) The web page is starting at an unexpected place. The user may have to manually enter the login information. Always be sure that the login information works manually before storing it for automatic login. Once the login information is entered on the website, the user must check the "I'm not a robot." box and click "Log in".

STEP 5 – Once logged in, follow the CT instructions for submitting a file via file upload. When browsing for the file to submit, if you created the file immediately before logging in, then you can press CTRL+V to copy the filename into the browse window. Be sure to follow the CT directions to complete the process.

STEP 6 - Payments must be made separately on ReEmployeCT. An agent can make an electronic payment on behalf of each of their clients using the Single Employer option. If the agent makes a payment, they must include receipt of payment with the transmittal form in Step 7. If the agent does not make a payment, then be sure to advise the employers to make their own electronic payments on ReEmployCT. CAUTION: Using a bulk payment makes the payment for all uploaded employers from the same account.

Explanation of Status Column

The column labeled Status next to the employer's name tracks the status of the corresponding employer's UC-2/5A/5B data files. Following is an explanation of the status labels.

Ready – A single Form UC-2/5A/5B data file for the quarter was found for the employer. This employer's data is ready to be processed into a file.

Duplicate – More than one Form UC-2/5A/5B data file for the quarter was found for the employer. In order to process a file for this quarter the user must delete any duplicate files for the quarter.

None – No Form UC-2/5A/5B data files were found for the quarter for the employer.

Date – File name – The Form UC-2/5A/5B data file for the quarter for the employer has been processed into a file.

Resetting the Status for Employers

Once an employer's UC-2/5A/5B data has been processed into a file for a given quarter, the file name appears in the status column and the employer's data cannot be processed (or reprocessed) into another file unless the status is reset. This feature is to safeguard the possibility of submitting the same data twice. To reset the employer for a given quarter, first select the quarter from the dropdown list. Check the box next to the employers that have already been processed into files. Click the Reset Status button to reset the selected employers. The status for the employers should then be Ready and they can be processed into another file.

How did we do?

CT Form UC-2/5A/5B - Employer Contribution Return and Quarterly Earnings Report

FL Form RT-6 - Electronic Filing Instructions