Colorado State Income Tax Return Form, e-File, and Government Information

State CO Website and Contacts
State Website http://www.revenue.state.co.us/main/home.asp
Taxpayer Assistance: (303) 238 7378
Refund Status: (303) 238 3278 
Check Refund Status Online: Check Refund Status

State Return Type
Residency Return Type Also Attach Status
Resident Form 104   Available
Part-Year Form 104 Form 104 PN Available
Part-Year Resident/Nonresident Tax Calculation Schedule

Special Processing
Type Availability
State-only tax return Supported
Descendent tax return Supported
Return with foreign address Supported

PIN
Availability Type Notes
Supported State assigned Only required for PC filers. eSmartTax users are not required to obtain a PIN.

Signature Form
Form Name Instructions
DR-8454 Do not mail in DR-8454. Keep it for your own record.

Exclusion for e-file
Form Type Description
Form 104 You can not e-file your return if you claim AMT on Form 104 line 15.
Form 104 You can not e-file a return for deceased taxpayer.
Form 104 You can not e-file non-calendar returns.

State CO Amount Owe Payment Option
You have the following options to pay your tax:
  1. Mail in a check.
    You need to attach Payment Voucher (Form DR0900)

    Mail check to:
    Colorado Department of Revenue
    Denver, CO 80261-0008

  2. Send e-payment through state website.

State CO Overpayment Option
You have the following options:
  1. Apply your refund amount to next year's tax payment.
  2. Contribute your refund amount to charity.
  3. Receive your refund by check through mail.
  4. Receive your refund by direct deposit to your bank account.

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