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  Roxy Huber, Executive Director      John Vecchiarelli, Senior Director 
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Colorado Department of Revenue - Taxes

Tax Professionals


Welcome to the Colorado Department of Revenue’s Tax Information Web page for Tax Professionals. Here, you’ll find information on classes conducted by the department as well as online services to help make it easier for you to serve your clients while ensuring they are complying with tax laws. As we continue to add more service options for tax professionals, you’ll find them here.

Electronic Filing and Services

Colorado Corporation Income Tax eFile

Colorado Online Tax Payment -- Pay state personal income tax by electronic check or credit card.  Not available for extension payments.

Online Tax Payment Poster for Tax Professionals' Use (8 1/2 x 11 size)

Extension of Time to File Information

Colorado e-file Options
Colorado e-file for your clients

E-file Poster for Tax Professionals' Use (8 1/2 x 11 size)

Direct Deposit for Individual Income Tax Refunds
Forms Approval Process/Information for Software Developers 

2D Barcode

Refund Status -- Income Tax Account Information Service

Check on an Agreement to Pay Plan -- Income Tax Account Information Service

Collection Agencies Authorized by the Department to Contact Taxpayers
Electronic Payment (EFT)

Local Taxes by Address -- A listing of companies that provide this service.

Sales Tax Account History

Sales Tax ZeroFile System

Special Events Fill-in Forms

Wage Withholding Annual Reconciliation On-line

Wage Withholding Tax ZeroFile System

Retailer's Use Tax ZeroFile -- Easy filing when out-of-state retailers have no use tax to report.

Publications / Reference

CDOR Tax InfoEmail

Tax Information Index
FYIs

Newsletters

Statutes
Regulations

Revenue Bulletins and Determinations
Colorado General Assembly -- for current regular session information

Legislation -- prior year legislation involving the Department of Revenue

Free Tax Classes

Online CPE Credit

Tax Statistics

Appeals Procedures

Interest and Penalty-Interest

Forms

Forms Approval Process/Information for Software Developers

Bulk Income Tax Order Form
Top Ten Forms

Property Tax/Rent/Heat (PTC) Rebate Forms (for low-income seniors and disabled persons)
Forms by DOR Number
Income and Estate
Business Registration
Sales and Use
Wage Withholding

Fuel Tax and International Fuel Tax Agreement (IFTA)

Cigarette and Tobacco
Liquor Excise
Severance Tax 
Where to Mail Forms 
IRS Forms 
Other States' Tax Information and Forms (Federation of Tax Administrators Web site)

For Frequently Asked Tax Questions and to Send E-mail to Us: See our Customer Support Site.


last reviewed: September 23, 2008


  Roxy Huber, Executive Director      John Vecchiarelli, Senior Director 
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