Downloaded from the Colorado Department of Revenue website.
REV10.9/INTERNET
Library has July 2006-
2025
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2024
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2023
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2022
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2021
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2020
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2019
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2018
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2017
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2016
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2015
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2014
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2013
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2012
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2011
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2010
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2009
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2008
January (PDF) | February | March | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2007
January (PDF) | February (PDF) | March (PDF) | April (PDF) |
May (PDF) | June (PDF) | July (PDF) | August (PDF) |
September (PDF) | October (PDF) | November (PDF) | December (PDF) |
2006
July (PDF) | August (PDF) | ||
September (PDF) | October (PDF) | November (PDF) | December (PDF) |