For income tax years commencing on or after January 1, 2009, a taxpayer may not use the provisions of article IV of the multistate tax compact to apportion and allocate income to Colorado.
C.R.S. § 24-60-1308
For income tax years commencing on or after January 1, 2009, a taxpayer may not use the provisions of article IV of the multistate tax compact to apportion and allocate income to Colorado.
C.R.S. § 24-60-1308