- April 8, 2026
- 5:07 pm
Washington didn’t give the solar industry a warning. On July 4, 2025, the homeowner tax credit was gone — eliminated overnight, mid-market, with no phase-down. For many companies, that was the end of the conversation.
For others, it was the starting gun.
For others, it was the starting gun.
The TPO Structure: Simple, Powerful, and Available Right Now
The mechanism that makes this work is called Third-Party Ownership — TPO. A qualified financial company installs and owns your solar system on your property. Because they are the legal owner, they claim the federal investment tax credit (Section 48E) and pass the savings directly to you in the form of a dramatically reduced cost. You don’t need to earn a certain income. You don’t need a tax liability. You don’t need to file anything special. The company absorbs all of that. You absorb the savings.
The 30% ITC is the reason monthly payments through TPO arrangements run 20–40% lower than they otherwise would. Without it, rates would be significantly higher. The savings are passed through to you — that’s the entire business model.
In real numbers, that can translate to a reduction of $100 or more per month compared to what a financed solar payment would look like without the credit applied. For most Long Island homeowners, that single adjustment is the difference between a solar payment that exceeds the electric bill they’re replacing and one that comfortably beats it.
The one IRS requirement: the TPO company must own the system for a minimum of five years to be recognized as the legitimate owner and claim the credit. For anyone planning to stay in their home for five years or longer — which describes the overwhelming majority of homeowners — this is a complete non-issue. After the five-year period, the TPO company closes out its interest in the system and removes itself entirely. From that point forward, you simply enjoy the savings.
The mechanism that makes this work is called Third-Party Ownership — TPO. A qualified financial company installs and owns your solar system on your property. Because they are the legal owner, they claim the federal investment tax credit (Section 48E) and pass the savings directly to you in the form of a dramatically reduced cost. You don’t need to earn a certain income. You don’t need a tax liability. You don’t need to file anything special. The company absorbs all of that. You absorb the savings.
The 30% ITC is the reason monthly payments through TPO arrangements run 20–40% lower than they otherwise would. Without it, rates would be significantly higher. The savings are passed through to you — that’s the entire business model.
In real numbers, that can translate to a reduction of $100 or more per month compared to what a financed solar payment would look like without the credit applied. For most Long Island homeowners, that single adjustment is the difference between a solar payment that exceeds the electric bill they’re replacing and one that comfortably beats it.
The one IRS requirement: the TPO company must own the system for a minimum of five years to be recognized as the legitimate owner and claim the credit. For anyone planning to stay in their home for five years or longer — which describes the overwhelming majority of homeowners — this is a complete non-issue. After the five-year period, the TPO company closes out its interest in the system and removes itself entirely. From that point forward, you simply enjoy the savings.
Domestic Content: Why the Equipment You Choose Changes Everything
To support U.S. manufacturing, commercial solar projects can qualify for an additional 10% investment tax credit bonus if they meet domestic content requirements. In practice, this means qualifying systems using American-made components — specifically, racking, panels, and inverters sourced from non-prohibited manufacturers — allow the TPO company to claim up to 35% of the total project cost rather than the standard 30%. That additional 5% comes back to you in the form of a lower cost basis, a lower financed amount, and lower monthly payments.
This is where equipment selection matters enormously — and where the differences between solar companies become impossible to ignore.
Some competitors are cutting costs by deploying substandard inverter technology: repurposed battery units retrofitted to function as inverters, marketed with inflated claims about backup capability, and notorious in the industry for high failure and return-to-manufacturer rates. These are not purpose-built solar inverters. They are compromised components in a system that’s supposed to last 25 years — and they disqualify a project from the domestic content bonus entirely, meaning their TPO partners can only offer the base 30% credit, not 35%.
At Solar Pro Roofing, we use Enphase microinverters — the same technology trusted by the most respected solar installers in the country for over a decade. Enphase microinverters are purpose-built, individually mounted per panel, carry an industry-leading reliability record, and qualify under domestic content requirements. We pair them with Tier 1 domestic solar panels and critter guards for a complete, professionally installed system that holds its value, qualifies for the maximum available credit, and is built to perform for the life of your home.
Better equipment. More American-made materials. A higher credit for your TPO partner to pass back to you.
To support U.S. manufacturing, commercial solar projects can qualify for an additional 10% investment tax credit bonus if they meet domestic content requirements. In practice, this means qualifying systems using American-made components — specifically, racking, panels, and inverters sourced from non-prohibited manufacturers — allow the TPO company to claim up to 35% of the total project cost rather than the standard 30%. That additional 5% comes back to you in the form of a lower cost basis, a lower financed amount, and lower monthly payments.
This is where equipment selection matters enormously — and where the differences between solar companies become impossible to ignore.
Some competitors are cutting costs by deploying substandard inverter technology: repurposed battery units retrofitted to function as inverters, marketed with inflated claims about backup capability, and notorious in the industry for high failure and return-to-manufacturer rates. These are not purpose-built solar inverters. They are compromised components in a system that’s supposed to last 25 years — and they disqualify a project from the domestic content bonus entirely, meaning their TPO partners can only offer the base 30% credit, not 35%.
At Solar Pro Roofing, we use Enphase microinverters — the same technology trusted by the most respected solar installers in the country for over a decade. Enphase microinverters are purpose-built, individually mounted per panel, carry an industry-leading reliability record, and qualify under domestic content requirements. We pair them with Tier 1 domestic solar panels and critter guards for a complete, professionally installed system that holds its value, qualifies for the maximum available credit, and is built to perform for the life of your home.
Better equipment. More American-made materials. A higher credit for your TPO partner to pass back to you.
The Math for Cash Buyers
TPO isn’t just for financed systems. These programs work for cash purchases as well. On a $30,000 cash solar installation, a TPO arrangement removes $9,000 to $10,500 from the purchase price before you open your wallet — reflecting the 30–35% federal credit the TPO company claims and passes through. New York State’s $5,000 solar tax credit may reduce your net cost further, though that credit remains contingent on your state income tax liability and will be applied the following tax season after installation. For eligible homeowners, the combined result on a $30,000 system could bring the true out-of-pocket cost to approximately $15,000 to $16,000.
TPO isn’t just for financed systems. These programs work for cash purchases as well. On a $30,000 cash solar installation, a TPO arrangement removes $9,000 to $10,500 from the purchase price before you open your wallet — reflecting the 30–35% federal credit the TPO company claims and passes through. New York State’s $5,000 solar tax credit may reduce your net cost further, though that credit remains contingent on your state income tax liability and will be applied the following tax season after installation. For eligible homeowners, the combined result on a $30,000 system could bring the true out-of-pocket cost to approximately $15,000 to $16,000.
One More Conversation Worth Having
The solar industry is actively exploring whether TPO structures may, in certain circumstances, be applicable to closely related project costs — including necessary electrical upgrades and roofing work that are required to facilitate a solar installation. The legal landscape around this is still evolving and varies by situation, but it represents a potentially significant development for homeowners who need more than just panels. That’s a conversation worth having — and a subject we’ll revisit as the guidance becomes clearer.
The solar industry is actively exploring whether TPO structures may, in certain circumstances, be applicable to closely related project costs — including necessary electrical upgrades and roofing work that are required to facilitate a solar installation. The legal landscape around this is still evolving and varies by situation, but it represents a potentially significant development for homeowners who need more than just panels. That’s a conversation worth having — and a subject we’ll revisit as the guidance becomes clearer.
The bottom line is straightforward: the federal homeowner tax credit may be gone, but the savings aren’t. They’ve simply moved — to a structure that, for the first time, is available to virtually every homeowner regardless of income, employment status, or tax history.
Solar Pro Roofing is here to walk you through exactly how it applies to your home.
Solar Pro Roofing is here to walk you through exactly how it applies to your home.
