Connecticut State Department of Revenue Services

WEBINAR: Next up in the Summer Series of Sales and Use Tax Webinars, DRS will be holding a webinar on Wednesday, July 16, 2025, at 10:00 a.m.  This session will provide an overview of the sales and use tax requirements pertaining to Janitorial Services and Maintenance Services. Select here to register.

Prior Years Sales Tax Return

Name Type Description Revised
 OS-114  Form Sales and Use Tax Return 07/2021 
 O-88  Instructions Instructions for OS-114  07/2021