An Overview of Colorado State Business Income Tax Extension Forms

- Updated Mar 10, 2022 - 8.00 AM by Admin, ExpressExtension

Does Colorado support tax extension for business tax returns?


Yes. The state of Colorado supports the automatic extension of time to file business income tax returns with the state.

What Form does the state of Colorado require to apply for an extension?


There is no state-specific form to request an extension, as the state of Colorado automatically provides the extension for up to 6 months for businesses to file an income tax return with the state. If you owe money to the state, you must file Colorado Form 0158-C & 0158-N.

How do I pay my balance due to the state of Colorado with my extension?


You can choose to pay your balance due along with your return by using any one of the following options:

  • Electronically via the Revenue Online system.
  • Check or money order
    • Colorado C Corporation Income Tax Return - Use Payment
      Form 0158-C.
    • Colorado Composite Nonresident Income Tax Return - Use Payment
      Form 0158-N.

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

When is the deadline to file a business tax return with Colorado?


Colorado Businesses must file their Colorado business tax return by April 15 or within 3½ months following the close of the taxable year (for fiscal year filers) and Colorado business tax extension offers an automatic 6 months tax extension, which moves the filing deadline to October 15 (for calendar year).

Where to mail payment Form 0158-C & 0158-N?


Mail Colorado Form 0158-C & 0158-N with payment voucher to the
following address:

Colorado Department of Revenue,
1375 Sherman Street,
Denver, CO 80261-0008.