Connecticut State Department of Revenue Services

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Sales and Use Tax Returns

Name  Description  Revised Date  Due Date 
OS-114 Sales and Use Tax Return  12/2018  Varies 
O-88 Instructions for OS-114  12/2018  N/A 

Tax Chart

Name  Description  Revised Date  Due Date 
OR-149  Sales and Use Tax Rate Chart  06/2011  N/A


Other Sales Tax Forms