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State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Colorado Department of Revenue
Federal/State Electronic Filing Program
1375 Sherman Street, Rm. 206
Denver, CO 80261
www.colorado.gov/revenue
Email: DOR_TaxpayerService@state.co.us
Phone: 303-866-3889
Tax Refund Inquiries: 303-238-7378
State electronic filing details
Grace period | 5 days |
E-filing mandate | No |
Accepts state-only filings | Yes |
Return types accepted |
Resident Part-year resident Nonresident Estimate payments Extension Amended |
Return types not accepted |
Superseded |
Accepts returns with these conditions |
Refund Zero balance Balance due |
Direct deposit of refunds | Yes |
Accepted forms of payment |
Direct debit (EFW) Credit card Online ePayment |
Signature requirements | ERO retains DR-8454 for 4 years |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations | See Electronic filers handbook |
State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Colorado Department of Revenue
Steve Asbell
1375 Sherman Street
Denver, CO 80261-0008
www.colorado.gov/cs/Satellite/Revenue/REVX/1251570868469
Email: stephen.asbell@state.co.us
Phone: 303-866-3889
State electronic filing details
Grace period | 10 days |
E-filing mandate | No |
Accepts state-only filings | Yes, but state prefers you send the federal at the same time. |
Return types accepted |
C Corporation S Corporation Consolidated / Combined Short year
|
Return types not accepted |
Amended Estimates Extension Composite Withholding |
Accepts returns with these conditions |
Refund Zero balance Balance due |
Direct deposit of refunds | Yes |
Accepted forms of payment |
Direct debit (EFW) Electronic funds transfer (EFT) Check by mail |
Signature requirements | ERO retains signed DR 8453-C or DR 8453-P for 4 years |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations |
State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Taxpayer Service Division
Electronic Filing Help Desk
1375 Sherman Street
Room 206
Denver, CO 80261
colorado.gov/tax/income-tax-fiduciary-file
Email: Stephen.Asbell@state.co.us
Phone: 303-866-3889
State electronic filing details
Grace period | 10 days |
E-filing mandate | No |
Accepts state-only filings | Yes |
Return types accepted |
Partnership Short year Composite (part of main return) |
Return types not accepted |
Amended Estimates Extensions Withholding |
Accepts returns with these conditions |
Refund Zero balance Balance due |
Direct deposit of refunds | Yes |
Accepted forms of payment |
Direct debit (EFW) Electronic funds transfer (EFT) Check by mail |
Signature requirements | ERO retains signed DR 8453-P for 4 years or attaches as PDF |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations |
State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
CO Department of Revenue - Electronic Filing Help Desk
Email: Stephen.Asbell@state.co.us
Phone: 303-866-3889
State electronic filing details
Grace period | 10 days |
E-Filing mandate | Yes |
Accepts state-only filings | Yes |
Return types accepted |
Resident Non-resident |
Return types not accepted |
Amended Estimate payments Extension Withholding |
Accepts return with these conditions |
Refund Zero balance Balance due |
Direct deposit of refunds | No |
Accepted forms of payment |
Direct debit (within 2 days after filing) Credit card (via Revenue Online) Check (with Form 900F) |
Signature requirements | ERO retains DR-8453F for 4 years/ |
Supports PDF attachments | Yes |
Special considerations |
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