The 30% federal Investment Tax Credit (Section 25D) applies to cash-purchased California ADU solar systems through 2032. HDM-financed systems use Section 48E commercial credit, passed through as price reduction.
Cash-purchased ADU solar qualifies for the 30% federal Investment Tax Credit (Section 25D) through 2032. HDM-financed systems pass through the commercial Section 48E credit as a ~40% price reduction.
Below: full details, common edge cases, and how to get instant pricing for your specific California ADU project.
For most California ADU owners, what is the adu solar tax credit in 2026? comes up at one of three points: planning, permitting, or post-installation. Each phase has its own answer below.
If you'd rather skip the reading and see a real number for your project, our calculator delivers instant pricing without a sales call.
Easy ADU Solar is a referral platform — we negotiate with multiple licensed C-46 California installers to get you fixed pricing. We surface this question because it's one of the top-asked items by California ADU owners researching solar.
Cash-purchased ADU solar qualifies for the 30% federal Investment Tax Credit (Section 25D) through 2032. HDM-financed systems pass through the commercial Section 48E credit as a ~40% price reduction.
Under 30 seconds via our calculator — no phone or email required.
Garage conversions and JADUs are usually exempt from Title 24 solar but follow the same answer for voluntary installs.