California Solar Initiative (CSI) Property Tax Exclusion

California State Board of Equalization

Available Solar & Renewable

About This Program

California law excludes the added home value of solar energy systems from property tax assessment. Active solar systems installed on residential properties are exempt from property tax increases through 2025-2026.

Solar system value excluded from property tax assessment

Verified against California State Board of Equalization's official page on 2026-06-17.

Data last verified 2026-06-09. How we verify our data.

Key Details

  • Solar system value excluded from property taxes
  • Applies to active solar energy systems
  • Reduces annual property tax burden
  • Available to all California homeowners
  • Exclusion active through 2025-2026

How to Apply

A grant-savvy contractor in San Ramon, CA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in San Ramon early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • A recent utility bill for the home (energy and weatherization programs use it to confirm service and usage).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Ongoing, active solar system exclusion

Questions about this program?

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Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

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