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.

This information is not current and is being provided for reference purposes only

IP 99(12)

Calculating Annualized Estimated Corporation Business Tax Installments and Worksheet CT-1120 AE

This publication has been replaced by IP 99(12.1)