Downloaded from the Colorado Department of Revenue website
REV1/30.21/INTERNET
Library has January 2016 - December 2021
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) |