The provisions of this rule apply to income tax years commencing on or after January 1, 2009, but prior to January 1, 2019.
In addition to the definitions provided in § 39-22-303.5, C.R.S., the following terms are defined or further defined as follows:
(1) "Apportionment" refers to the division of business income among states by use of a formula containing apportionment factors.(2) "Allocation" refers to the assignment of nonbusiness income to one or more particular states.(3) "Business activity" refers to the transactions and activity occurring in the regular course of a particular trade or business of a taxpayer.(4) "Sales"- See 1 CCR 201-2, Rule 39-22-303.5 -4.Colorado Register, Vol 37, No. 14. July 25, 2014, effective 8/14/201437 CR 18, September 25, 2014, effective 10/15/201437 CR 19, October 10,2014, effective 10/30/201437 CR 22, November 25, 2014, effective 12/16/201438 CR 04, February 25, 2015, effective 3/17/201538 CR 07, April 10, 2015, effective 4/30/201538 CR 11, June 10, 2015, effective 6/30/201538 CR 22, November 25, 2015, effective 12/15/201538 CR 24, December 25, 2015, effective 1/14/201638 CR 24, December 25, 2015, effective 1/19/201639 CR 01, January 10, 2016, effective 1/30/201639 CR 16, August 25, 2016, effective 9/14/201640 CR 08, April 25, 2017, effective 5/15/201740 CR 12, June 25, 2017, effective 7/15/201740 CR 16, August 25, 2017, effective 9/14/201740 CR 23, December 10, 2017, effective 1/1/201841 CR 14, July 25, 2018, effective 8/14/201841 CR 20, October 25, 2018, effective 11/14/201842 CR 02, January 25, 2019, effective 12/18/201842 CR 02, January 25, 2019, effective 12/18/2018, expires 4/17/201942 CR 06, March 25, 2019, effective 4/14/201943 CR 04, February 25, 2020, effective 3/16/202043 CR 13, July 10, 2020, effective 6/2/202043 CR 17, September 10, 2020, effective 9/30/202044 CR 03, February 10, 2021, effective 3/2/202144 CR 07, April 10, 2021, effective 4/30/202144 CR 08, April 25, 2021, effective 5/15/202145 CR 01, January 10, 2022, effective 1/30/202245 CR 04, February 25, 2022, effective 3/17/202245 CR 05, March 10, 2022, effective 3/30/202246 CR 11, June 10, 2023, effective 5/2/202346 CR 09, May 10, 2023, effective 5/30/2023