PLEASE NOTE: Some information on this website is provided in PDF format. This requires the use of an Acrobat Reader version 7.0 or higher, which may be downloaded free of charge from Adobe Systems.

The following forms are provided for software developers intending to produce Delaware Corporate Income Tax forms software.

DO NOT DISTRIBUTE YOUR SOFTWARE UNTIL YOUR SOFTWARE VERSION OF OUR FORMS HAVE BEEN APPROVED.

Contact: Ron Kuhn, (302) 327-8354, ron.kuhn@state.de.us

For current business tax information and forms, access the Business Taxpayers section of our website.


As current-year information becomes available, the links will be activated.

Please note: we are not supporting 2D barcode for the Tax Year 2016 Form 1100.


The CIT Specs have not changed; please use these specs but update the dates as necessary:


2011 CORPORATE INCOME TAX SPECIFICATIONS

DELAWARE CIT TAX TEST PACKET FOR 2D BARCODE