Instructions for Form CT-1120, CT-1120 ATT, CT-1120A, CT-1120K, CT-1120 EXT - Connecticut

Form CT-1120 Corporation Business Tax Return - Connecticut Form CT-1120A Corporation Business Tax Return Apportionment Computation - Connecticut Form CT-1120K Business Tax Credit Summary - Connecticut Form CT-1120 EXT Application for Extension of Time to File Connecticut Corporation Business Tax Return - Connecticut

This document contains official instructions for Form CT-1120 , Form CT-1120 ATT , Form CT-1120A , Form CT-1120K , and Form CT-1120 EXT . All forms are released and collected by the Connecticut Department of Revenue Services. An up-to-date fillable Form CT-1120 is available for download through this link. The latest available Form CT-1120A can be downloaded through this link. Form CT-1120K can be found here. The newest Form CT-1120 EXT can be downloaded here.

FAQ

Q: What are these forms for?
A: These forms are used for filing taxes in the state of Connecticut.

Q: What is Form CT-1120?
A: Form CT-1120 is the Connecticut Corporation Business Tax Return.

Q: What is Form CT-1120 ATT?
A: Form CT-1120 ATT is the Attachment to CT-1120, used for providing additional information.

Q: What is Form CT-1120A?
A: Form CT-1120A is the Annual Report of Income and Expense.

Q: What is Form CT-1120K?
A: Form CT-1120K is the Connecticut Composite Income Tax Return.

Q: What is Form CT-1120 EXT?
A: Form CT-1120 EXT is the Application for Extension of Time to File Connecticut Corporation Tax Return.

Q: Are these forms specific to Connecticut?
A: Yes, these forms are specifically for filing taxes in the state of Connecticut.

Q: Do I need to fill out all of these forms?
A: No, you only need to fill out the forms that are relevant to your tax situation.

Q: When are these forms due?
A: The due dates for these forms vary, so it is important to check the instructions or consult with a tax professional.