Connecticut State Department of Revenue Services

Walk-in services at all DRS branch office locations remain suspended. Email DRS at drs@po.state.ct.us. Email the Priority One Taxpayer Assistance Program: DRSPriorityOne_CollectionsAssist@po.state.ct.us. Please check our Frequently Asked Questions page.

Prior Years Sales Tax Return

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