Colorado Department of Revenue, Individual, Business & Other Taxes Forms - Download Print & File

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Colorado Department of Revenue, Individual, Business & Other Taxes Forms - Download Print & File

colorado.gov

Colorado Department of Revenue
1375 Sherman St.
Denver, CO 80261
Phone: +18006593656
email: taxformcomments@spike.dor.state.co.us

Colorado Department of Revenue
Division of Taxation

All Forms by Title

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Content forms and FYI publications are in an Adobe PDF Format.

Where to Mail Tax Forms?

Colorado Department of Revenue
1375 Sherman St.
Denver, CO 80261

Use the following "Plus-4" numbers to get returns and payments routed to the correct office within the department:

80261-0004 notice of deficiency, tax protests, delinquent tax payments
80261-0005 individual income tax, amended income tax, real estate conveyance forms
80261-0006 partnership, corporation, fiduciary income tax
80261-0007 severance tax
80261-0008 estimated, extension and e-file income tax payment coupons/vouchers
80261-0009 withholding tax, annual withholding reconciliations and miscellaneous business taxes (e.g., waste tire, fuel, heavy truck sales, aviation)
80261-0013 sales tax, use tax, county lodging, county short term rental, local marketing district tax
80261-0016 motor vehicle, driver licenses, motor vehicle registrations
80261-0017 driver's license Renew by Mail applications

For IRS mailing address and other contact information, see the IRS Web site.

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Error on Income Tax Return

We cannot make any modifications to an income tax filing whether paper or electronic, prior to the filing being processed. Do not mail in a second income tax form or file a second electronic version. A duplicate filing could cause problems with your income tax account.

Once your original filing is processed, you should file a paper amended income tax return (104X) to add or change information on the original filing. Please check “My Income Tax Account” on the Web or by phone at (303) 238-FAST (3278) to monitor the processing of the original filing.

To obtain the 104X Amended Income Tax Form, see our Income and Estate Form page and click on amended forms.

(c) 2009 State of Colorado, Denver, CO