DRS: Online filing Methods

TSC Online

ATTENTION: Taxpayers Expecting Refunds
The agency is implementing enhanced screening of all income tax refund requests in the wake of recent, wide-spread data breaches. The additional screening may delay some refunds or cause some direct deposit refunds to be issued as a check instead. Click here for the press release.

(Click on the link for details)

New to the TSC?

The TSC gives you the ability to:

  • file tax returns;
  • make payments;
  • view tax account information;
  • register a new business;
  • add additional taxes to an existing business;

TSC is easy, secure and FREE!

Login to the 
Taxpayer Service Center

Use the login buttons below to access the TSC platform you need.  Ex. A business owner would enter through the Business platform.  Bulk filers would use the Tax Preparer platform.

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TSC Resources

Never Registered?

If you are starting a new business in Connecticut and you do not have a CT Registration number, you can apply for one right now electronically through the TSC.

New Business Registrations

Already Registered!

If you have already obtained a CT Registration number, and this is your first time logging into the TSC, then follow the steps in your PIN Notification letter to create your online profile.