SOFTWARE DEVELOPER - CURRENT YEAR
CORPORATE INCOME TAX VOUCHERS
The following forms are provided for software developers intending to produce Delaware Corporate Income Tax Returns.
Please Note: The forms on this website are available in PDF format. This requires the use of an Acrobat Reader version 6.0 or higher, which may be downloaded free of charge from Adobe Systems.
• Form 1100T Delaware Corporate Tentative Tax Return
• Form 1100T-EXT Corporation Income Tax Request for Extension
• Form 1100T-REQ Corporation Income Tax Request for Change
• Form 1100P Delaware "S" Corporation Personal Income Tax
• Form 1100P-EXT Delaware "S" Corporation Request for Extension
• Form 1100P-REQ Delaware "S" Corporation Income Tax Request for Change
The following worksheets are not required for submission; however, some developers have found them helpful to include in their software packages:
• Taxpayers Worksheet and Record of Payments for 1100T• Taxpayers Worksheet and Record of Payments for 1100P
