According to the Colorado Department of Revenue, "Income tax refunds are issued in 2-4 weeks when a paper return is filed in January or February. Processing time is considerably shorter when an electronic filing is submitted. The later in the tax season you file a paper return, the longer it could take to receive your refund. Refund requests on paper returns received in April can take 8-12 weeks to process. (Electronic filings process within two weeks and help avoid errors."
Taxpayers who wish to check the status of their tax refund are requested to click on the following link that will provide them the Tax Refund Status. https://www.myincometax.state.co.us/index.asp