The Colorado Department of Revenue anticipates it will begin processing individual tax filings this week after a delayed rollout of e-filing for the 2025 tax season.

As of Tuesday, the Department of Revenue’s website still said that the “2024 return links for individual income tax, fiduciary income tax, and business income tax are coming soon. Please check in early February 2025.”

The department typically begins accepting state tax returns by late January. But this year, it has been working to implement 26 major changes to the tax code, said Derek Kuhn, a department spokesperson.

“We are taking lessons learned from this iteration so that we can be as efficient as possible next year,” he said.