After you file

You will need to submit all schedules and supporting documentation for the changes on your amended return, even if those schedules do not have any changes in values. Please see the excerpt below from the Colorado 104 book instructions.

If your state amendment is a result of an IRS notice, you will need to attach the amended federal return as part of the supporting documentation for your Colorado amended return.  You would also need to include a copy of the federal revenue's agent report per the instructions for Form DR 0104X.