Archive of IRS-990 Tax Returns and Annual Reports
Latest Financial Reports
![](https://savemountdiablo.org/wp-content/uploads/2024/06/2024-Impact-Report-Cover-300x216.jpg)
Current Annual Report
April 1, 2023–March 31, 2024
*Numbers are based on unaudited April 1, 2023–March 31, 2024 financials. Financial information is updated annually. View past audited 990 forms and annual reports below.
Past Financials
![hiking through Mangini preserve](https://savemountdiablo.org/wp-content/uploads/2023/06/2022-2023-Annual-Report-Cover-231x300.png)
Annual Report
April 1, 2022–March 31, 2023
Save Mount Diablo has changed from a calendar year to an April 1 to March 31 fiscal year-end. *Numbers are based on unaudited April 1, 2022–March 31, 2023 financials. Financial information is updated annually. View past audited 990 forms and annual reports below.
![2022 to 2023 form 990 page 1 for Save Mount Diablo](https://savemountdiablo.org/wp-content/uploads/2024/02/2022-to-2023-form-990-page-1-for-Save-Mount-Diablo-239x300.jpg)
990 Form
April 1, 2022–March 31, 2023
Save Mount Diablo’s fully audited IRS 990 forms for our 2022–2023 fiscal year, which covers April 1, 2020 to March 31, 2021.
![Map of the Diablo Range](https://savemountdiablo.org/wp-content/uploads/2022/06/DIABLO-AR-2021-Cover-232x300.jpg)
Annual Report
April 1, 2021–March 31, 2022
Save Mount Diablo has changed from a calendar year to an April 1 to March 31 fiscal year-end. *Numbers are based on unaudited April 1, 2021–March 31, 2022 financials. Financial information is updated annually. View past audited 990 forms and annual reports below.
![2021 to 2022 form 990 page 1 for Save Mount Diablo](https://savemountdiablo.org/wp-content/uploads/2022/12/Save-Mount-Diablo-2021-to-2022-Form-990-page-1-232x300.png)
990 Form
April 1, 2021–March 31, 2022
Save Mount Diablo’s fully audited IRS 990 forms for our 2021–2022 fiscal year, which covers April 1, 2020 to March 31, 2021.
![](https://savemountdiablo.org/wp-content/uploads/2022/02/Screenshot-296-232x300.webp)
Annual Report
April 1, 2020–March 31, 2021
Save Mount Diablo changed from a calendar year to an April 1 to March 31 fiscal year-end. *Numbers are based on unaudited April 1, 2020–March 31, 2021 financials. Financial information is updated annually. View past audited 990 forms and annual reports below.
![](https://savemountdiablo.org/wp-content/uploads/2022/02/Screenshot-2021-11-30-134508-e1638308992325-233x300.webp)
990 Form
April 1, 2020–March 31, 2021
Save Mount Diablo’s fully audited IRS 990 forms for our 2019–2020 fiscal year, which covers April 1, 2010 to March 31, 2021.