- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
After you file
If you've filled you can not change it on your tax return.
- Your only alternative is to contact the Connecticut Department of Revenue.
- Department of Revenue Services
- 450 Columbus Blvd.
Suite 1
Hartford CT 06103
Phone Number: 860-297-5962
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
**Mark the post that answers your question by clicking on "Mark as Best Answer"
March 28, 2025
6:02 AM