When Does Colorado Start Accepting Tax Returns?

Understanding the timeline for filing your Colorado state income tax return is important for managing personal finances. Knowing when tax season officially begins allows taxpayers to plan effectively, gather necessary documents, and avoid potential delays or penalties. This guide provides key information for timely and accurate submission of tax returns.

Colorado Tax Filing Season Commencement

Colorado generally begins accepting state income tax returns shortly after the Internal Revenue Service (IRS) opens its federal tax filing season. The IRS typically starts processing federal returns in late January. While the Colorado Department of Revenue (CDOR) aims to open its filing system around this time, slight delays can occur as the state implements tax code changes.

Taxpayers cannot submit their Colorado state return before the state’s system is ready to accept it. Official announcements regarding the exact opening dates are made by the CDOR and can be found on their official website.

Important Filing Deadlines

The primary deadline for filing Colorado state income tax returns aligns with the federal deadline, typically April 15th. If April 15th falls on a weekend or holiday, the deadline shifts to the next business day. This date applies to most individual taxpayers.

Taxpayers needing additional time can obtain an automatic extension. If a federal extension is filed with the IRS, it also applies to the Colorado state return, moving the filing deadline to October 15th. Remember, an extension to file is not an extension to pay; any taxes owed are still due by the original April 15th deadline to avoid interest and penalties.

Methods for Submitting Your Return

Taxpayers have two primary options for submitting a Colorado state income tax return: electronic filing (e-filing) or paper filing. E-filing is often the preferred method due to its speed and efficiency. Taxpayers can e-file through commercial tax software providers, professional tax preparers, or free file options if they meet income requirements. E-filing provides confirmation of submission and can expedite refund processing.

For those who prefer to mail a paper return, the Colorado Department of Revenue provides specific mailing addresses. For returns where a refund is due or no payment is made, the mailing address is Colorado Department of Revenue, Denver, CO 80261-0005. If a payment is included with the return, the address is Colorado Department of Revenue, Denver, CO 80261-0006.

Checking Your Return Status

After submitting a Colorado state income tax return, taxpayers can monitor its processing status online. The Colorado Department of Revenue offers an online tool called “Revenue Online.” To access the status, individuals need to provide their Social Security Number or Individual Taxpayer Identification Number, the exact refund amount from their original return, and the tax year.

The online system provides status updates. E-filed returns usually show a status within a few days, while paper-filed returns can take longer to appear in the system and process. If there are delays or questions regarding a return’s status, taxpayers can contact the Colorado Department of Revenue directly.