To establish a payment plan for unpaid state taxes in Colorado, it is recommended to first gather all relevant information regarding the taxes owed, including the total amount, any relevant tax years, and personal financial information. The Colorado Department of Revenue offers the option to create a payment plan for individuals who are unable to pay their taxes in full. Typically, taxpayers can apply for a payment plan online through the department's website, where they may find a specific section dedicated to payment arrangements. Generally, one must complete the necessary application forms, which detail the proposed payment terms and schedule. It is important to note that the department may require a down payment or set a minimum monthly payment amount. Once the payment plan is established, it is crucial for taxpayers to adhere to the agreed-upon terms to avoid additional penalties or enforcement actions. For more specific details and guidance, the Colorado Department of Revenue's current web page should be a valuable resource, as it provides up-to-date information on the application process and requirements for establishing a payment plan.