Connecticut State Department of Revenue Services

- Sunset of the single-use plastic bag fee: Read more

- Back to Work CT incentive for those returning to the workforce: Read more

- Learn more about myconneCT

Business Use Tax Returns

Name Description  Revised Date  Due Date 
OS-114BUT  Business Use Tax Return  07/2018  Varies 
O-88BUT  Instructions for OS-114BUT  07/2018  N/A