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CIT Due Dates for Tax Year 2023

Year End Month Start Date End Date Q1 Estimated
Payment
Q2 Estimated
Payment
Q3 Estimated
Payment
Q4 Estimated
Payment
Return Return
With Extension
December 1/1/2023 12/31/2023 4/15/2023 7/15/2023 10/15/2023 1/15/2024 4/30/2024 12/31/2024
January 2/1/2023 1/31/2024 5/15/2023 8/15/2023 11/15/2023 2/15/2024 5/31/2024 1/31/2025
February 3/1/2023 2/29/2024 6/15/2023 9/15/2023 12/15/2023 3/15/2024 6/30/2024 2/28/2025
March 4/1/2023 3/31/2024 7/15/2023 10/15/2023 1/15/2024 4/15/2024 7/31/2024 3/31/2025
April 5/1/2023 4/30/2024 8/15/2023 11/15/2023 2/15/2024 5/15/2024 8/31/2024 4/30/2025
May 6/1/2023 5/31/2024 9/15/2023 12/15/2023 3/15/2024 6/15/2024 9/30/2024 5/31/2025
June 7/1/2023 6/30/2024 10/15/2023 1/15/2024 4/15/2024 7/15/2024 10/31/2024 6/30/2025
July 8/1/2023 7/31/2024 11/15/2023 2/15/2024 5/15/2024 8/15/2024 11/30/2024 7/31/2025
August 9/1/2023 8/31/2024 12/15/2023 3/15/2024 6/15/2024 9/15/2024 12/31/2024 8/31/2025
September 10/1/2023 9/30/2024 1/15/2024 4/15/2024 7/15/2024 10/15/2024 1/31/2025 9/30/2025
October 11/1/2023 10/31/2024 2/15/2024 5/15/2024 8/15/2024 11/15/2024 2/28/2025 10/31/2025
November 12/1/2023 11/30/2024 3/15/2024 6/15/2024 9/15/2024 12/15/2024 3/31/2025 11/30/2025

Download a PDF copy of the CIT Due Dates for Tax Year 2023