Do I need to include a copy of my federal return with my Colorado state return?
No, the Colorado Department of Revenue does not require taxpayers to attach a copy of the federal return to the Colorado return.
How do I file Colorado taxes?
Go to Colorado.gov/RevenueOnline. In the Sales and Use Tax menu panel, click on File a Consumer Use Tax Return Using the drop-down, indicate the time frame when the last purchase being filed for occurred. Read the information on the page.
Do I attach w2 to state tax return?
If you are mailing in your state return, you can send in the state tax copy of your W-2 forms along with the return.
Where do I send my Colorado state tax return?
Mailing to Colorado Department of Revenue, PO Box 17087, Denver, CO 80217-0087.
When can I file Colorado state taxes?
Colorado State Income Taxes for Tax Year 2025 (January 1 - Dec. 31, 2025. can be prepared and e-Filed now along with an IRS or Federal Income Tax Return (or you can learn how to only prepare and file a CO state return). Attention. The Colorado tax filing and tax payment deadline is April 18, 2022.
Do I need to send a 1099 to the state of Colorado?
Does Colorado require the filing of Form 1099-NEC? Yes. The State of Colorado requires Form 1099-NEC to be filed only if there is state withholding.
Should I attach W-2 to state tax return?
Yes, you should attached all the Form(s) W-2 and W-2G you received to the lower front of your tax return. Also, attach any Forms(s) 1099, 592-B, and 593 showing California income tax withheld.
Where can I file my Colorado state taxes online for free?
Revenue Online. You may use the Colorado Department of Revenue's free e-file and account service Revenue Online to file your state income tax. You do not need to login to Revenue Online to File a Return.
How do I submit my w2 to Colorado?
W-2 Statements When filing a paper return, all W-2s and/or 1099s that show Colorado income tax withholding must be stapled to the front of the form where indicated. When filing an electronic return, attach scanned copies of all W-2s and/or 1099s that show Colorado income tax withholding to the e-filed tax return.
Where do I send my Colorado individual tax return?
Mailing to Colorado Department of Revenue, PO Box 17087, Denver, CO 80217-0087.
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