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.

2019 Informational Publications

IP 2019(1), Connecticut Circular CT Employer's Withholding Guide

IP 2019(2), Q & A on the Connecticut Use Tax for Businesses and Professions

IP 2019(3), Q & A on the Connecticut Individual Use Tax

IP 2019(4), Q & A: The Dues Tax

IP 2019(5), Connecticut Income Tax Information for Armed Forces Personnel and Veterans

IP 2019(6), The "Buy Connecticut" Provision

IP 2019(7), Is My Connecticut Withholding Correct?

IP 2019(9), 2019 Q & A on Estimated Corporation Business Tax and Worksheet CT-1120AE

IP 2019(12), Forms 1099-R, 1099-MISC, 1099-K, and W-2G Electronic Filing Requirements for Tax Year 2019

IP 2019(13), Form W-2 Electronic Filing Requirements for Tax Year 2019

IP 2019 (14), 2019 Taxable Year Federal/State Electronic Filing Handbook