Connecticut State Department of Revenue Services

Individual Income Tax Filers:  DRS will be holding a webinar on Wednesday, April 2, at 10:00 a.m.  This session will provide information for filing 2024 Connecticut income tax returns and helpful tips for electronically filing such returns. Select here to register.

New Businesses:  DRS will be holding a webinar on Wednesday, April 16, at 10:00 a.m. This session will provide an overview of the requirements for registering a new business with DRS. Select here to register.

This information is not current and is being provided for reference purposes only

IP 2010(10)

Q & A on Estimated Corporation Business Tax and Worksheet CT-1120AE

This publication is available in pdf format

This publication has been superseded by IP 2011(21)