NOTICE: DRS offices will be closed Monday, February 18, 2019, in observance of Washington's Birthday

Search Department of Revenue Services Filtered Topic Search

Business Help

Connecticut business taxpayers can electronically file most Connecticut business tax returns using the Taxpayer Service Center (TSC-BUS). The TSC is an interactive tool that provides a free, fast, easy, and secure way to conduct business with DRS.

Some of the features of the TSC include the ability to:

  • view current balances,
  • schedule payments with tax returns,
  • make bill payments, and
  • amend certain business tax returns. 

Using our FAQs, you can easily get answers to the most frequently asked questions and you can also exchange confidential information with DRS through a "secure" mailbox.

Download the TSC Electronic Filing Flyer and keep it beside your computer for additional help in using the TSC-BUS.  This flyer provides information about:

  • logging on to the TSC
  • filing returns
  • making business tax payment-only transactions (including bill payments)

Helpful Hints:

Ready to begin?  Access the Login Page