Enter Required Information
Log in to myconneCT
Locate your Sales & Use tax account on the Summary tab
Enter the listed Filing Frequency on the Return tile within your Sales & Use tax account tile on the Summary tab
Enter the 10-digit “Account ID” listed on the Account tile (format: 1234567890)
Note: This is different than the 12-digit “CT Registration No”. Please be sure to provide the 10-digit Account ID.
If you do not have online access to your account then you can alternatively provide us with either:
A Previous payment amount from one of the last three submitted Sales and Use Tax Returns (Line 14 “Total Due” from a tax return)
A Letter ID from a letter physical letter you have received from Connecticut (format L1234567890)
Letter IDs are located in the header of official correspondence from the Connecticut Department of Revenue. The ID begins with an "L" followed by a 10-digit number.
Effective Registration Date (Required for First Return Filing only)
Your effective registration date can be found in the mailed registration confirmation documents for your Sales & Use tax account.
Tip: it will fall within the period covered by our first return available in the myconneCT account.
If you do not have a letter containing your Effective Registraton Date, you can message the Connecticut DRS online to request it.
From the home page in your myconneCT account, click the More… menu tab
Click Send a Message in the Correspondence section
Click your Sales & Use tax account
Click the first (oldest) return period
Click Other
Template Subject: “Effective Date of Registration Confirmation”
Template Message: “Can you please confirm the effective registration date for this sales and use tax account?”
*Note: then regularly login to check for a responsen message.
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