Voluntary contributions (Checkoff Colorado) summary.
Colorado Department of Revenue
REV1/30.22/INTERNET
Library has January 2017-
2024
| January (PDF) | ||
2023
| January & February (PDF) | March (PDF) | |
| April (PDF) | May (PDF) | June (PDF) |
| July (PDF) | August (PDF) | September (PDF) |
2022
| January (PDF) | February (PDF) | March (PDF) |
| April (PDF) | May (PDF) | June (PDF) |
| July (PDF) | August (PDF) | September (PDF) |
2021
| February (PDF) | March (PDF) | |
| April (PDF) | May (PDF) | June (PDF) |
| July (PDF) | August (PDF) | September (PDF) |
2020
| January (PDF) | February (PDF) | March (PDF) |
| April (PDF) | May (PDF) | June (PDF) |
| July (PDF) | August (PDF) | September (PDF) |
2019
| January (PDF) | February (PDF) | March (PDF) |
| April (PDF) | May (PDF) | June (PDF) |
| July (PDF) | August (PDF) | September (PDF) |
2018
| January (PDF) | February (PDF) | March (PDF) |
| April (PDF) | May (PDF) | June (PDF) |
| July (PDF) | August (PDF) | September (PDF) |
2017
| January (PDF) | February (PDF) | March (PDF) |
| April (PDF) | May (PDF) | June (PDF) |
| July (PDF) | August (PDF) | September (PDF) |