California homeowners and businesses seeking to take advantage of rebates, credits, and other clean energy incentives should be aware that stacking multiple benefits can offset the cost of solar panels, battery storage, electric cars, heat pumps, and more. However, “stacking” can be complicated by eligibility requirements, timing, the difference between tax credits and rebates, and the interaction of various programs.
One thing you should avoid when pursuing rebates and incentives is the assumption that any combination of them is possible. Talk to a tax expert who can help you with the sales tax audit process.
To help navigate these challenges, here’s an overview of common clean-energy incentives and how to evaluate them:
Federal Rules Are Changing
The 2025 federal tax law ended the residential clean energy credit for expenses incurred after December 31, 2025, and also eliminated the energy-efficient home improvement credit after that date. Note that California generally doesn’t adopt federal tax credits.
That means California taxpayers should be especially mindful of timing when it comes to energy improvements.
Before signing a contract, check the federal tax code for your intended equipment and its installation date.
Solar Panels and Battery Storage Can Be Combined
Solar plus battery storage can be a winning combination for California taxpayers seeking to reduce their electricity costs. Various utility companies also offer rebates or other incentives for solar panel installations, battery storage purchases, and efficiency improvements, depending on your income, the equipment, and your location.
However, the key point is that you shouldn’t assume that a utility rebate or a federal tax credit are equivalent.
Create a budget spreadsheet that reflects equipment costs, applicable rebates, tax benefits, financing options, and other expenses for the project.
Heat Pumps Can Provide an Additional Layer of Tax Benefits
Heat pump HVAC systems and water heaters are increasingly important in California, where the state is promoting deep building electrification
The Equitable Building Decarbonization programs, for example, offer incentives for eligible heat pump HVAC and water heating equipment, as well as insulation, smart thermostats, EV chargers, solar plus battery storage, and more, depending on the program. Eligibility for these incentives may depend on your location and household income.
These programs represent additional opportunities for California taxpayers who want to decarbonize their homes with heat pumps in addition to solar panels or battery storage.
Don’t Forget EV Infrastructure
In addition to solar panels, battery storage, and heat pumps, California taxpayers can take advantage of incentives for EV purchases, home chargers, and other electrification projects
Business owners should be aware that a wide range of federal, state, utility, and local programs can apply to commercial clean energy projects, depending on the taxpayer’s situation and the details of the equipment.
Key variables include whether the vehicle is for personal or business use, applicable charger equipment, the taxpayer’s location, and their personal or business income. Get a tax professional (like an IRS tax debt attorney) if you don’t want to deal with these matters on your own.
Get More Opportunities
For businesses, clean energy projects often encompass a variety of clean energy, transportation, and building efficiency improvements that can be eligible for a range of tax incentives.
Although California doesn’t have as many commercial tax credit programs as the federal government does, businesses need to consider tax credits, deductions, and depreciation when evaluating clean energy and electrification projects.
It’s crucial for businesses to understand how different incentives interact with one another, as well as with capitalization, ownership structure, and tax laws. In general, businesses should analyse clean energy projects using an overall tax model rather than considering each component separately.
Although the FTB generally follows the federal tax code, California often differs when it comes to clean energy incentives for businesses. The FTB warns that California does not adopt certain federal clean energy incentives and deductions, so a separate analysis of your situation is necessary.
How to Take Advantage of Multiple Incentives?
Before starting your clean energy project, remember these key tips:
- Confirm eligibility. If you purchase equipment first, you may end up ineligible for certain rebates or incentives.
- Consider deadlines. Different federal and state incentives may have different deadlines, so you need to understand how soon you need to complete the installation and/or purchase.
- Make sure credits and rebates are compatible. Depending on your situation, one might reduce the value of the other.
- Keep records. Maintain paper or electronic records of your project for tax purposes.
- Check your local utility company programs. Many utility companies offer rebates, credits, or other incentives for clean energy and electrification projects.
- Separate personal and business expenses. Expenses for personal use and equipment purchases for your business generally have very different tax implications.
- Consider the bottom-line costs. Instead of comparing advertised incentives, analyze the overall tax implications and net costs.
There are numerous opportunities for California homeowners and businesses to reduce the costs of clean energy and electrification projects by leveraging rebates, tax credits, and other incentives. However, it’s essential to understand the eligibility requirements and deadlines and evaluate how different incentives interact with one another.
The most important consideration is the fact that the new federal tax law ended several residential clean energy credits after 2025, and California generally doesn’t adopt federal tax credits. Therefore, it’s crucial to carefully evaluate your situation before making any major clean energy or electrification purchases.
