STATEWIDE — More than 84 percent of taxpayers submitted their Colorado individual income tax returns electronically last year. The Colorado Department of Revenue (CDOR) encourages taxpayers to file their Colorado income taxes electronically again this year.

Electronic filing, or “e-filing,” has revolutionized filing state and federal income tax returns. Preparing and submitting returns can be easier and less time-consuming than ever before and may result in quicker refunds. Various online and tax preparation services provide individuals with choices to fit their lifestyles, including CDOR’s free online tax filing system, Colorado.gov/RevenueOnline. Whether they prepare forms themselves or use a tax professional, taxpayers can find an electronic filing option that’s right for them.

What are the Benefits of Filing Electronically?

• Save time: No need to mail the tax return or visit us in person.
• Avoid mistakes: Filing errors and missing documentation will be identified before a return is submitted, so taxpayers can avoid re-doing returns and potential processing delays.
• Quicker return processing: Returns are more efficient when e-filed.
• Easy Math: Software will calculate how much tax is owed.
• Convenient: Use any device to e-file from anywhere with internet service. 

How Can I File Electronically?

• Revenue Online - Taxpayers can file and pay their taxes, monitor their refund status, access their filing history, and send secure messages with questions about their tax records through CDOR’s Revenue Online service at Colorado.gov/RevenueOnline. Revenue Online is a free, convenient and safe way to interact with the Department. Taxpayers can complete the following steps in Revenue Online for free without a Login ID:
• File a tax return
• Check refund status.
• Upload electronic copies of tax documentation.
• Make a payment. Online payments reduce errors and provide instant payment confirmation. A nominal fee for e-check and credit card transactions will apply.

Due to security measures, Revenue Online is not available to taxpayers who are filing Colorado taxes for the first time. Also please remember that filing a tax return on Revenue Online does not automatically set up an account.

• Federal & State Electronic Filing - To file electronically, taxpayers also have the option of utilizing tax software or hiring a tax professional. There is a list of accepted tax software on the Individual Income Tax File webpage at Colorado.gov/Tax.

The Colorado Department of Revenue’s Taxation Division is committed to protecting personal taxpayer information and providing quality customer service to assist in voluntary compliance with state tax laws.