DOR Taxation web site

Common Income Tax Filing Errors

Posted: January 19, 2010
The Colorado Department of Revenue has updated its income tax accounting system.  The system is in place for tax returns filed beginning September 2009.  The system will stop processing a filing until all the necessary pieces of information are included with a return.  Taxpayers will receive letters that information is missing and must be submitted before processing will continue. 


Therefore, it is important for taxpayers and tax professionals to pay close attention to the points listed on our new  Common Income Tax Filing Errors Web page.