Nobody pays full price for a tax credit without pulling back the hood first. And when the difference between the base rate and the full rate hinges entirely on prevailing wage and apprenticeship requirements, that hood gets pulled back hard.
In the transferable tax credit market created by Section 6418 of the Internal Revenue Code, buyers carry a specific and uncomfortable risk: if the IRS later determines that the credit was improperly calculated, the buyer is on the hook. Not the seller. The buyer. That single fact reshapes how every serious purchaser approaches diligence, and labor compliance sits right at the center of it.
Why PWA Compliance Is the Highest-Stakes Diligence Item
Here’s the math that makes prevailing wage and apprenticeship requirements impossible to ignore. Projects that satisfy PWA standards receive a tax credit worth five times the base amount. A solar project with a $100 million cost basis, for example, qualifies for roughly $6 million at the base ITC rate. Meet PWA requirements, and that number jumps to $30 million. That is not a rounding error. It is the entire economics of the deal.
Of the eligible IRA tax credits, most are subject to prevailing wage and apprenticeship requirements when taxpayers seek the increased credit amount, while Section 45X is not subject to these requirements. So for the vast majority of credits changing hands in today’s market, PWA diligence is not optional. It is the diligence.
What Buyers Actually Look For
Credit buyers are not checking a single box. They are working through three distinct components of the IRA’s apprenticeship rules, plus the prevailing wage layer rooted in Davis-Bacon standards.
On the apprenticeship side, the requirements break down into labor hours, ratio, and participation. For projects that began construction after December 31, 2023, at least 15% of total labor hours must be performed by qualified apprentices from registered apprenticeship programs. The ratio requirement means contractors need to maintain the correct apprentice-to-journeyworker ratio every single day on the job site. And the participation requirement demands that developers make good-faith efforts to request apprentices from registered programs before claiming an exemption.
On the wage side, every laborer and mechanic on the project, whether employed directly by the taxpayer or through a contractor or subcontractor, must be paid at rates that meet or exceed the applicable prevailing wage determination. That obligation does not end at placed-in-service. For certain credits, it extends through alteration and repair work for years after the facility starts operating.
Buyers dig into certified payroll records, apprenticeship program registrations, and contractor documentation. They want to see that these requirements were not just technically met on paper, but actually followed on the ground.
The Recapture Problem That Keeps Buyers Up at Night
If a credit gets disallowed after transfer, the buyer faces recapture of the increased credit amount, plus potential penalties and interest. That is a financial exposure most corporate tax departments take extremely seriously.
The good news (sort of) is that the final regulations published in June 2024 laid out specific circumstances that may indicate reasonable cause for avoiding the excessive credit transfer penalty. These include the buyer’s review of seller records, reasonable reliance on third-party expert reports, and review of audited financial statements. But relying solely on the seller’s own representations does not clear the bar. Buyers need independent verification.
This is why most transfer agreements now include seller indemnification clauses, annual PWA compliance certificates, and tax credit insurance policies covering PWA noncompliance risk.
How Smart Buyers Structure Their Protection
Experienced credit purchasers layer their risk mitigation. Contractual protections typically require the seller to compensate the buyer if prevailing wage and apprenticeship requirements turn out to have been violated. Post-closing covenants obligate the seller to continue meeting any ongoing PWA obligations and to notify the buyer immediately if a recapture event occurs.
Third-party diligence reports, including independent reviews of labor compliance documentation, have become standard in larger transactions. And for buyers who want belt-and-suspenders coverage, insurance products now specifically address PWA-related disallowance scenarios.
The buyers who get this right treat it less like a closing checklist and more like an ongoing compliance relationship. A comprehensive guide to complying with prevailing wage and apprenticeship requirements can help both sides understand the full scope of what is at stake.
Conclusion
Prevailing wage and apprenticeship requirements are not a footnote in credit transfer diligence. They are the reason the credit is worth five times the base rate, and they are the reason a deal can unravel after closing if compliance was sloppy. Buyers who treat PWA review as a formality are taking on risk they probably have not priced. The ones who survive an IRS audit are the ones who verified everything before the wire hit.
