California Solar Initiative (CSI) Property Tax Exclusion

State of California

Available Solar & Renewable

About This Program

Excludes the added home value from a newly constructed or installed solar energy system from property tax assessment. Applies to active solar energy systems constructed or installed between January 1, 2009, and December 31, 2026.

Prevents property tax increase from solar installation; saves approximately $500-$1,500/year

Verified against State of California'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 systems installed by December 31, 2026
  • No income requirement
  • Prevents property tax increase from solar
  • Apply through county assessor when filing building permit

How to Apply

A grant-savvy contractor in San Pablo, 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 Pablo 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 through January 1, 2027

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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