- CT filing, payment deadlines for individual income tax returns extended to May 17th. Read more.

- Please check our 2021 CT Tax Filing Season FAQ's

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- Walk-in services at all DRS branch office locations remain suspended.

Prior Years Sales Tax Return

Name  Type Description
Due Date
OS-114 Form  Sales and Use Tax Return 11/2017 varies
O-88 Instructions  Instructions for OS-114 11/2017 N/A