Colorado form co 2026

1. Click ‘Get Form’ to open the Colorado Form CO in the editor.
2. Begin by entering your corporation's name, Colorado Account Number, and FEIN in the designated fields at the top of the form.
3. In Section A, select your apportionment method. Choose from options like 'Not Apportioning' or 'Receipts Factor' based on your business activities.
4. Proceed to Section B to indicate whether you are filing a separate, consolidated, or combined return. Mark the appropriate box.
5. Fill out the federal taxable income section by entering figures from your federal return. Ensure accuracy as this will affect your Colorado tax calculations.
6. Complete the additions and subtractions sections carefully, providing explanations where necessary for any adjustments made.
7. Finally, review all entries for accuracy before submitting electronically through our platform or printing for mailing.

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