~ct-department-of-revenue-services
What are the contact options for DRS?
How is a unitary business defined?
What are the requirements for filing a Connecticut income tax return if you have wage income and federally-exempt interest?
When can taxpayers start filing their individual state income tax returns for taxable year 2023?
What is the extension period for the corporation business surtax?
Who must file a Connecticut resident income tax return?
How long does it take for the income tax subtraction modification for IRA distributions to fully phase in?
What is the new rate for the earned income tax credit?
How can I determine if my return meets the timely filed and timely payment rules?
What should I do if I haven't received my ITIN by April 15?
When does the new filing frequency for the highway use fee start?
What are the criteria for filing a Connecticut resident income tax return?
What happens if the due date falls on a Saturday, Sunday, or legal holiday?
What is the income threshold for married individuals filing separately?
What is the effective date of the legislation?
