NEW Highway Use Fee - Registration is now open for certain carriers to register for the new Connecticut Highway Use Fee - Click here for more information.

IMPORTANT INFORMATION - the following tax types are now available in myconneCT: Individual Income Tax, Attorney Occupational Tax, Unified Gift and Estate Tax, Controlling Interest Transfer Tax, and Alcoholic Beverage Tax. - Click here for the latest information.

Register for the NEW Connecticut Software Developer’s Site

  1. Go to,
  2. Click on ‘Practitioners’
  3. Click on ‘Software & Payroll Companies’
  4. To complete the registration process you must have a Microsoft account for Office 365.
  5. If you do NOT have a Microsoft account for Office 365 you must create one.If you already have a Microsoft account for Office 365, go to step 6.
    1. In a web browser, go to
    2. Select ‘Create a Microsoft account’
    3. Enter your current email address (same as registration request)
    4. Microsoft login image

    5. Click ‘Next’ and follow the instructions to create the account.
  6. Once you have your Microsoft account ID, click on the link to the Registration Form.
  7. Complete the registration form and click the ‘Submit/Email’ button at the top of the form.
  8. Once the form is received you will receive and email indicating you have been registered for the NEW Software Developer’s site.
  9. In your browser, go to
  10. Login using your Microsoft account ID and password.

If you have any questions, comments or suggestions please contact John Dumin by email at or telephone at 860-297-5813.