C-Corporation Income
Technical Support and Helpful Documents
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2D Bar Code -- Not supported.
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Federal/State Electronic Filing -- Steve Asbell, (303) 866-3889 or stephen.asbell@state.co.us
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Forms Development -- DOR_Forms_Development@state.co.us
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Form Information and Specifications for Tax Professionals | PDF
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DR 5315, Tax Payment Coupon Specifications--No Scan Line | PDF
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DR 5317, Specifications for Validation Area | PDF
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DR 5325, Tax Payment Coupons--With Scan Line | PDF
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DR 5325G, 6 x 10 Payment Coupons Grid | PDF
Draft Forms Links
Corporate E-file Software Developer Information
Colorado's corporate e-file program follows the rules and guidelines established by the Internal Revenue Service in their Publication 4164 (Modernized e-file). Below are links to our XML schema and other documentation that can be used by software developers for Colorado Form 112 corporate e-file. Requests for the Colorado test package and questions can be directed to Steve Asbell at 303-866-3889 or by email.
2012
Software Developer Handbook Final 11-21-12
MeF Business Schema 2012 v4.02
Corp Form 112 Schema Map 2012 v4.02
Form DR 1305 Schema Map
Form DR 1366 Schema Map
DR 1366 approved
Form 112 Rules Error Codes
PDF Attachment Names
Business Income 2012 Test Package Final 12-19-12
Accepted Software
2011
Form 112 Schema map (xls)
Colo Business Schema v2.62 (zip)
Business Income Test Package (zip)
Form 112 Rules Error Codes (xls)
Accepted Software