Archive of IRS 990 Tax Returns and Impact Reports
Many supporters donate to Save Mount Diablo’s land preservation programs. We are very thankful for their generosity and strive to use their gifts as intended to protect, defend, and restore natural lands on and around the mountain, and to connect it to the rest of the Diablo Range. Our archive of financial documents includes links below to our public 990 forms and published annual impact reports. For additional information or audited financial reports, please call our office at 925-947-3535.
Latest Financial Reports
Current Impact Report
April 1, 2024–March 31, 2025
*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.
Current 990 Form
April 1, 2024–March 31, 2025
Save Mount Diablo’s fully audited IRS 990 forms for our 2024–2025 fiscal year, which covers April 1, 2024 to March 31, 2025.
Past Financials
Impact 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.
990 Form
April 1, 2023–March 31, 2024
Save Mount Diablo’s fully audited IRS 990 forms for our 2023–2024 fiscal year, which covers April 1, 2023 to March 31, 2024.
