This version of the form is not currently in use and is provided for reference only. Download this version of Form CT-1120 for the current year.
This is a legal form that was released by the Connecticut Department of Revenue Services - a government authority operating within Connecticut. Check the official instructions before completing and submitting the form.
Q: What is Form CT-1120?
A: Form CT-1120 is the Corporation Business Tax Return for the state of Connecticut.
Q: Who needs to file Form CT-1120?
A: All corporations doing business in Connecticut, including non-profit organizations, must file Form CT-1120.
Q: When is the deadline to file Form CT-1120?
A: The deadline to file Form CT-1120 is the 15th day of the fourth month following the close of the tax year.
Q: Are there any extensions available for filing Form CT-1120?
A: Yes, corporations can request a six-month extension to file Form CT-1120.
Q: What information is required to complete Form CT-1120?
A: Some of the information required to complete Form CT-1120 includes the corporation's income, expenses, credits, and tax liability.
Q: Are there any penalties for not filing Form CT-1120?
A: Yes, there are penalties for not filing Form CT-1120, including late filing penalties and interest on any unpaid tax amounts.
Q: Can I e-file Form CT-1120?
A: Yes, Connecticut allows corporations to e-file Form CT-1120.
Q: How can I pay the tax due with Form CT-1120?
A: You can pay the tax due with Form CT-1120 by electronic funds transfer, credit card, or by mailing a check or money order.
Form Details:
Download a printable version of Form CT-1120 by clicking the link below or browse more documents and templates provided by the Connecticut Department of Revenue Services.