This Account form lists your tax debt, penalty, interest and the balance due to the State of Colorado. They may also send you a Statement when they send you correspondence.
These Statements are not necessarily accurate. Plus, the State isn't bound by their statements of the balance due. If you are on a payment plan the State will send you this notice periodically but at least once a year.
There may be credits or additions that do not appear in this notice. Make sure you agree with the amounts by reviewing your returns & the payments you've made. You may have to order your payment history from the Colorado Department of Revenue.
These Statements often accompany another Notice of Determination or Garnishment from the State. So, depending on your problem, different tactics must be explored. The Statement of Account is for information only. No response to the State is required.
Response
But, you must respond adequately & timely to Colorado notices or you will lose by default. Many people fail to respond because they don't know how. TaxHelpLaw will show you how to answer & respond to the State of Colorado with the Prep Steps for Colorado Problems.