California Solar Tax Credits & Incentives
2026 Guide
Complete guide to every federal and state tax benefit, rebate, and exemption available to California solar homeowners in 2026.
Federal Solar Tax Credit Update — 2026
The 30% federal ITC (Section 25D) expired for homeowner-owned systems on December 31, 2025.
If you installed solar by Dec 31, 2025, you can still claim the 30% credit on your 2025 tax return (due April 15, 2026). For new installations in 2026, only third-party lease/PPA arrangements can access federal credits through Section 48E.
California Solar Tax Credits & Incentives
Every credit, exemption, and rebate available in CA
Federal ITC Carryforward
30% of system cost
If you installed solar before 2026, you can still claim the full 30% Residential Clean Energy Credit. The credit is nonrefundable but unused amounts carry forward.
Eligibility
- Installed solar/battery by December 31, 2025
- File 2025 tax return by April 15, 2026
- Nonrefundable — excess carries forward to future years
SGIP Battery Rebate (Equity)
$850–$1,000/kWh
California's Self-Generation Incentive Program offers massive rebates for battery storage. Equity Resiliency tier can cover 80–100% of battery costs. General market receives ~15% rebate.
Eligibility
- PG&E, SCE, SoCalGas, or SDG&E customer
- Income-qualifying or equity resiliency category
- Battery storage installation
Property Tax Exemption
100% of added value excluded
100% of the added home value from your solar installation is excluded from property tax assessments. This saves hundreds per year on a typical system.
Eligibility
- Any California homeowner with solar
- Residential property only
- Automatic — no separate application needed
Third-Party Lease/PPA Federal Credit
Up to 30% passed through
Third-party solar providers can still claim the 30% ITC under Section 48E and pass savings to you through lower monthly payments.
Eligibility
- New solar/battery through lease or PPA arrangement
- Provider must begin construction by July 4, 2026
- System placed in service by December 31, 2027
Key Deadlines for California Solar Owners
Don't miss these time-sensitive opportunities
April 15, 2026CRITICAL
Last day to file 2025 taxes and claim the 30% federal ITC for systems installed by Dec 31, 2025
July 1, 2026CRITICAL
AB 942 could force NEM 1.0/2.0 customers with 10+ years on tariff to transition to NEM 3.0
July 4, 2026
Deadline for third-party providers to begin construction to qualify for Section 48E credits
Battery Storage — The #1 Opportunity in California
SGIP equity rebates of $850–$1,000/kWh can cover most or all battery costs. Adding battery to existing solar generally preserves NEM grandfathering and allows you to capture more value from self-consumption.
Net Metering in California
NEM 3.0 reduced export value ~75% for new customers. Existing NEM 1.0/2.0 customers are grandfathered for 20 years from PTO date. Battery storage is increasingly important to maximize self-consumption value.
Frequently Asked Questions
Common questions about solar tax credits in California
Is there a California state solar tax credit in 2026?
No, California does not offer a state income tax credit for solar installations. However, California provides a 100% property tax exemption for solar and significant battery storage rebates through SGIP that can be worth thousands more than a tax credit.
Can I still claim the federal solar tax credit in California in 2026?
Only if you installed your system by December 31, 2025. You can claim the 30% federal ITC on your 2025 tax return, due April 15, 2026. For new installations in 2026, only third-party lease/PPA arrangements can access federal credits.
Will adding a battery affect my NEM 1.0/2.0 grandfathered rate?
Generally no. Adding battery storage typically does NOT force you off your grandfathered NEM rate, as long as the modification is under 10% capacity increase. However, monitor AB 942 which could force NEM 1.0/2.0 customers with 10+ years on tariff to transition to NEM 3.0 starting July 1, 2026.
What is the SGIP battery rebate worth in California?
For the equity resiliency category, SGIP pays $1,000/kWh, which can cover 80–100% of battery costs. The standard equity category pays $850/kWh. General market customers receive approximately 15% of battery installation costs. Note: All RSSE AB 209 funding has been reserved — new applications go on a waitlist.
What solar tax exemptions are available in California?
California offers a 100% property tax exemption for solar installations, meaning the added value from your solar system is completely excluded from property tax assessments. There is no state sales tax exemption specifically for solar.
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