| 2025 | The Zaphiropoulos Foundation | 990PF | President | 5 | $0 | $0 | View return |
| 2025 | Diamond Z English Shire Foundation | 990PF | President | 25 | $0 | $0 | View return |
| 2025 | Western Heritage Foundation Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2024 | Diamond Z English Shire Foundation | 990PF | President | 25 | $0 | $0 | View return |
| 2024 | Western Heritage Foundation Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2024 | Friends of the Childrens Justice Center of Iron County | 990 | Trustee | 0 | $0 | $0 | View return |
| 2023 | The Zaphiropoulos Foundation | 990PF | President | 5 | $0 | $0 | View return |
| 2023 | Western Heritage Foundation Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2023 | Diamond Z English Shire Foundation | 990PF | President | 25 | $0 | $0 | View return |
| 2022 | Western Heritage Foundation Inc. | 990EZ | Director | 3 | $0 | - | View return |
| 2022 | Diamond Z English Shire Foundation | 990PF | President | 30 | $0 | $0 | View return |
| 2022 | The Zaphiropoulos Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2021 | Western Heritage Foundation Inc. | 990EZ | Director | 5 | $0 | - | View return |
| 2021 | The Zaphiropoulos Foundation | 990PF | President | 30 | $0 | $0 | View return |
| 2021 | Diamond Z English Shire Foundation | 990PF | President | 30 | $0 | $0 | View return |
| 2020 | Diamond Z English Shire Foundation | 990PF | President | 40 | $0 | $0 | View return |
| 2020 | Western Heritage Foundation Inc. | 990EZ | Director | 5 | $0 | - | View return |
| 2020 | The Zaphiropoulos Foundation | 990PF | President | 10 | $0 | $0 | View return |
| 2019 | Diamond Z English Shire Foundation | 990PF | President | 40 | $0 | $0 | View return |
| 2019 | The Zaphiropoulos Foundation | 990PF | President | 5 | $0 | $0 | View return |
| 2019 | Western Heritage Foundation Inc. | 990EZ | Director | 5 | $0 | - | View return |
| 2018 | Western Heritage Foundation Inc. | 990EZ | Director | 0 | $0 | - | View return |
| 2018 | Diamond Z English Shire Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2018 | The Zaphiropoulos Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2018 | Diamond Z English Shire Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2018 | The Zaphiropoulos Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2017 | Diamond Z English Shire Foundation | 990PF | President | 25 | $0 | $0 | View return |
| 2017 | Western Heritage Foundation Inc. | 990EZ | Director | 2 | $0 | - | View return |
| 2017 | The Zaphiropoulos Foundation | 990PF | President | 3 | $0 | $0 | View return |
| 2016 | The Zaphiropoulos Foundation | 990PF | President | 0 | $0 | $0 | View return |
| 2016 | Western Heritage Foundation Inc. | 990EZ | Director | 2 | $0 | - | View return |
| 2016 | Diamond Z English Shire Foundation | 990PF | President | 30 | $0 | $0 | View return |
| 2015 | The Zaphiropoulos Foundation | 990PF | President | 5 | $0 | $0 | View return |
| 2015 | Diamond Z English Shire Foundation | 990PF | President | 35 | $0 | $0 | View return |
| 2015 | Western Heritage Foundation Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2014 | Diamond Z English Shire Foundation | 990PF | President | 25 | $0 | $0 | View return |
| 2014 | The Zaphiropoulos Foundation | 990PF | President | 2 | $0 | $0 | View return |
| 2014 | Western Heritage Foundation Inc. | 990EZ | Director | 2 | $0 | - | View return |
| 2013 | Diamond Z English Shire Foundation | 990PF | President | 20 | $0 | - | View return |
| 2013 | Western Heritage Foundation Inc. | 990EZ | Director | 2 | $0 | - | View return |
| 2012 | Diamond Z English Shire Foundation | 990PF | President | 20 | $0 | - | View return |
| 2012 | The Zaphiropoulos Foundation | 990PF | President | 2 | $0 | - | View return |
| 2011 | Diamond Z English Shire Foundation | 990PF | President | 20 | $0 | - | View return |
| 2011 | The Zaphiropoulos Foundation | 990PF | President | 2 | $0 | - | View return |
| 2010 | The Zaphiropoulos Foundation | 990PF | President | 2 | $0 | - | View return |
| 2010 | Diamond Z English Shire Foundation | 990PF | President | 20 | $0 | - | View return |