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CIT Due Dates for Tax Year 2021

Year End Month Start Date End Date Q1 Estimated
Payment
Q2 Estimated
Payment
Q3 Estimated
Payment
Q4 Estimated
Payment
Return Return
With Extension
December 1/1/2021 12/31/2021 4/15/2021 7/15/2021 10/15/2021 1/15/2022 4/30/2022 12/31/2022
January 2/1/2021 1/31/2022 5/15/2021 8/15/2021 11/15/2021 2/15/2022 5/31/2022 1/31/2023
February 3/1/2021 2/28/2022 6/15/2021 9/15/2021 12/15/2021 3/15/2022 6/30/2022 2/28/2023
March 4/1/2021 3/31/2022 7/15/2021 10/15/2021 1/15/2022 4/15/2022 7/31/2022 3/31/2023
April 5/1/2021 4/30/2022 8/15/2021 11/15/2021 2/15/2022 5/15/2022 8/31/2022 4/30/2023
May 6/1/2021 5/31/2022 9/15/2021 12/15/2021 3/15/2022 6/15/2022 9/30/2022 5/31/2023
June 7/1/2021 6/30/2022 10/15/2021 1/15/2022 4/15/2022 7/15/2022 10/31/2022 6/30/2023
July 8/1/2021 7/31/2022 11/15/2021 2/15/2022 5/15/2022 8/15/2022 11/30/2022 7/31/2023
August 9/1/2021 8/31/2022 12/15/2021 3/15/2022 6/15/2022 9/15/2022 12/31/2022 8/31/2023
September 10/1/2021 9/30/2022 1/15/2022 4/15/2022 7/15/2022 10/15/2022 1/31/2023 9/30/2023
October 11/1/2021 10/31/2022 2/15/2022 5/15/2022 8/15/2022 11/15/2022 2/28/2023 10/31/2023
November 12/1/2021 11/30/2022 3/15/2022 6/15/2022 9/15/2022 12/15/2022 3/31/2023 11/30/2023

Download a PDF copy of the CIT Due Dates for Tax Year 2021