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Connecticut Individual Income Tax Filing deadlines and extensions for 2024 for tax professionals to reference when working with clients.
If your client is a resident or has been involved in significant business operations within Connecticut, then they might be required to file Connecticut State Taxes. This document explores the most crucial tax deadlines and tax extensions for Connecticut in 2024.
Connecticut Individual Income Tax Filing deadlines and extensions for 2024 for tax professionals to reference when working with clients.
If your client is a resident or has been involved in significant business operations within Connecticut, then they might be required to file Connecticut State Taxes. This document explores the most crucial tax deadlines and tax extensions for Connecticut in 2024.
You must file & pay Corporate Income Taxes in Connecticut on behalf of your clients by May 15, 2025.
You must send payment for taxes in Connecticut for the fiscal year 2024 on behalf of your clients by May 15, 2025.
The Extension Deadline is November 15, 2025, to file your Connecticut corporate income tax return.
Connecticut automatically grants a 6-month extension for filing corporate income tax returns. This means you do not need to file for an extension in Connecticut.
This is an extension to FILE, not an extension to PAY – payment is still due May 15, 2025.
You must file in Connecticut on behalf of your clients by March 15, 2025.
You must send payment for taxes in Connecticut for the fiscal year 2024 on behalf of your clients by March 15, 2025.
The Extension Deadline is September 15, 2025, to file your Connecticut S Corporation & Partnership income tax return.
Connecticut automatically grants a 6-month extension for filing pass-through entity tax returns. This means you do not need to file for an extension in Connecticut.
This is an extension to FILE, not an extension to PAY – payment is still due March 15, 2025.
Estimated tax payments are made:
See Form CT-1040ES for the amount to pay with each voucher.
You must file & pay Individual Income Taxes in Connecticut on behalf of your clients by April 15, 2025.
You must send payment for taxes in Connecticut for the fiscal year 2024 on behalf of your clients by April 15, 2025.
The Extension Deadline is October 15, 2025, to file your Connecticut Individual Income tax return.
Connecticut automatically grants a 6-month extension for filing personal income taxes. This means you do not need to file for an extension in Connecticut.
This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.
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The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.
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