Colorado

State of Colorado Business Income Tax Extensions

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IRS Form 7004

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General Instructions

Choose your state from the list below to access detailed instructions for both business and personal tax extensions.

Businesses must file their Colorado tax return by April 15 — or within 3½ months following the close of the taxable year (for fiscal year filers).

Colorado offers a 6-month extension, which moves the filing deadline to October 15 (for calendar year taxpayers).

Colorado’s tax extension is automatic, which means there is no application to submit unless you have tax liability.

An extension of time to file is not an extension of time to pay. If you owe Colorado tax, at least 90% of your net tax liability must be paid by the original due date, or penalties and interest will apply.

C corporations can make an extension payment using Colorado Form 0158-C. S corporations and partnerships can make a Colorado extension payment using Form 0158-N. Extension payments can also be made electronically via the “Revenue Online” system.

If your Colorado tax liability is zero, you do not need to file anything to get a state extension.

Colorado State Income Tax Extension Forms

Extend your business tax return due date by 6 months in minutes! Use FileLater to e-file Form 7004 for IRS Forms 1120, 1120S, 1065, and more.

Welcome

Website: Colorado Division of Taxation

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Payment Voucher for Extension of Time for Filing a Colorado C Corporation Income Tax Return Submit Form Form 0158-C
Payment Voucher for Extension of Time for Filing a Colorado Composite Nonresident Income Tax Return Submit Form Form 0158-N