Connecticut State Department of Revenue Services

Upcoming CT DRS webinar: Select to register for the upcoming Withholding Forms W-2 and 1099 Annual Filing Webinar on Wednesday, December 4, 2024, at 10:00 a.m.

AN 91(4)

Important Information About Connecticut Corporation Business Tax

Recently enacted legislation changes the Connecticut Corporation Business Tax. Please refer to the enclosed notice for further information on these changes.

PLEASE NOTE THE FOLLOWING NEW INFORMATION ABOUT DRS.

FOR FURTHER INFORMATION: To order forms and publications or for further information, call the Department of Revenue Services at 860-297-5962 (Hartford area or out-of-state) or 1-800-382-9463 (in-state). Forms and publications may be ordered through voice-mail 24-hours a day by choosing Option 3 on your touch tone telephone.

Telecommunications Device for the Deaf (TDD/TT) users only call 860-297-4911 during business hours.

AN 91(4)
Corporation Business Tax
Issued 7/91
TPS/0013/791