If you’re running a CPA firm, you’ve almost certainly had clients who qualify for R&D tax credits but never claim them. That’s not a failure of awareness on your part — it’s a function of how specialized R&D credit work has become. The four-part test, the QRE allocation, the funded research analysis, the base amount calculations, the Section 280C coordination, and now the Form 6765 Section G component-level reporting — this isn’t something you layer on top of an already packed busy season.
But your clients are leaving real money on the table. Industry data suggests that approximately 90% of eligible businesses never claim the R&D credit — often because their CPA firm doesn’t offer the service and hasn’t connected them with someone who does.
The solution isn’t building an in-house R&D practice from scratch. It’s partnering with a specialist who handles the technical study while you maintain the client relationship and earn referral revenue. Here’s why this model works, what to look for in a specialist partner, and how the 2026 Form 6765 changes make the partnership conversation more urgent than ever.
Key Takeaways
- Most CPA firms don’t have the engineering + tax hybrid expertise to prepare defensible R&D studies — and shouldn’t try to build it from scratch when partners exist
- A specialist partnership model lets your firm deliver a new service to existing clients without hiring, training, or risking quality issues on complex technical studies
- Form 6765 Section G (mandatory 2026) raises the compliance bar dramatically — clients without specialist-prepared studies face higher examination risk
- A well-structured referral arrangement generates recurring revenue for your firm while deepening client relationships through a service the client values highly
Why Most CPA Firms Don’t Offer R&D Credits In-House
R&D tax credit studies sit at the intersection of tax law and technical engineering — a combination most CPA firms aren’t staffed for. A defensible study requires someone who can walk a manufacturing floor and identify qualifying process engineering activities, sit with software developers and map their Agile sprints to the four-part test, or analyze construction contracts for the funded research exclusion.
That’s not a knock on CPA firms. It’s an acknowledgment that the R&D credit has become a specialty practice requiring a specific skill set — just as transfer pricing, international tax, and forensic accounting are specialties. Trying to perform R&D studies without the technical background creates real risk:
Underclaimimg
Without deep technical knowledge, generalist firms routinely miss qualifying activities — especially in manufacturing, construction, and industries where R&D doesn’t look like “research.” Clients get a fraction of their eligible credit.
Overclaiming
Equally dangerous — including non-qualifying activities, applying the four-part test incorrectly, or missing the funded research exclusion. This leads to IRS disallowance and damages the firm’s credibility with the client.
Audit Exposure
A poorly documented study invites IRS examination. If the credit is disallowed, the CPA firm that prepared it faces professional liability questions — and the client loses trust in the relationship.
The Partnership Model: How It Works
A CPA-specialist partnership is straightforward. The CPA firm identifies clients with potential R&D credit eligibility, makes the introduction, and the specialist handles the technical study. The CPA firm continues to own the client relationship, file the tax return, and coordinate with the specialist on credit calculations and return preparation.
You identify the opportunity
During regular client interaction — tax planning meetings, quarterly reviews, annual return preparation — you spot clients with engineering, product development, or technical problem-solving activities. You don’t need to know whether they qualify; you just need to recognize the indicators.
We evaluate and scope the engagement
We perform the initial feasibility analysis at no cost to the client. If the projected credit doesn’t justify a study, we tell you — and you’ve still delivered value by connecting the client with an expert who gave them a straight answer.
We conduct the R&D study
We handle the technical interviews, activity identification, QRE calculation, four-part test documentation, and report preparation. The client’s engineering and finance teams work with us directly, while you stay in the loop throughout.
We deliver the report and credit calculations to you
You receive a complete R&D study report with credit calculations, Form 6765 inputs, Section G data (if applicable), and supporting documentation. You file the return with the credit included. The client sees you as the firm that delivered a valuable new benefit.
You earn referral revenue — year after year
R&D studies are annual engagements. Once a client starts claiming the credit, they claim it every year. Your referral arrangement generates recurring revenue from the initial introduction — compounding as you identify more clients.
How we protect the CPA-client relationship: We never solicit your clients directly. We don’t cross-sell tax preparation, audit, advisory, or any other service that competes with your firm. The client remains yours. We’re a technical resource behind the scenes — your firm gets the credit (literally and figuratively) for delivering a service the client didn’t know they could access.
Which of Your Clients Should You Be Looking At?
You don’t need to be an R&D specialist to spot potential candidates. If you see any of these patterns in your client base, there’s likely a qualifying credit waiting:
Why 2026 Makes the Partner Conversation Urgent
Form 6765 Section G becomes mandatory for most filers starting in 2026. This isn’t just a reporting change — it’s a fundamental shift in how R&D credits are documented and filed. For CPA firms filing returns that include R&D credits, Section G requires:
Business component identification by name, with QREs itemized per component for the top 80% of expenses (up to 50 components). Wage breakdowns separated into direct research, supervision, and support categories. Section E disclosures on officer wages, new expense categories, and business changes. Controlled group reporting with entity-level detail.
This level of detail requires project-level data collection, engineering interviews, and activity-by-activity QRE allocation — exactly the work a specialist prepares as part of a standard R&D study. For CPA firms without a specialist partner, preparing Section G from scratch represents a major compliance burden.
The competitive risk of not partnering: If your client has qualifying R&D activities and you’re not helping them access the credit, someone else will. R&D credit specialists regularly approach businesses directly. The difference between a proactive introduction from a trusted CPA and a cold call from an unknown vendor is the difference between strengthening and jeopardizing a client relationship.
What to Look for in a Specialist Partner
Not all R&D credit firms are created equal. The ERC debacle — where aggressive “credit mills” filed billions in questionable claims — showed what happens when tax credit work isn’t done by qualified professionals. Here’s what should matter in evaluating a specialist partner:
Technical credibility
Do they have engineering or technical staff who can conduct site inspections and evaluate qualifying activities? A study built solely from interviews and estimates is exactly what the IRS’s RCCATG flags for disallowance.
Audit defense track record
Will they stand behind their work if the IRS examines the credit? The best specialists provide audit support as part of the engagement — because a credit that doesn’t survive examination has negative value.
Respect for the CPA relationship
Will they work through your firm without soliciting the client for other services? The partnership should strengthen your client relationship, not threaten it. Clear boundaries matter.
Multi-incentive capability
Does the firm handle cost segregation, state credits, and other incentives alongside R&D? A partner who can evaluate all applicable incentives in one engagement delivers more value than a single-service vendor.
CPA Firms: Let’s Talk Partnership.
We work exclusively through CPA partnerships — never going around you. Whether you have one client with potential R&D activities or fifty, we’ll evaluate the opportunity and give you a clear picture of the revenue potential for your firm.
Frequently Asked Questions
How much time does the partnership require from our firm?
Minimal. Your role is making the introduction, sharing relevant tax return data (with client consent), and coordinating the credit filing. We handle the technical study, client interviews, QRE calculations, and report preparation. Most CPA partners tell us the time investment is a few hours per client engagement — far less than the value of the referral revenue and client goodwill.
Will you try to take our clients?
No. We provide R&D credit studies, cost segregation studies, and related incentive services. We don’t offer tax preparation, audit, bookkeeping, advisory, or any service that competes with your firm. The client remains yours. Our engagement agreement explicitly protects the referral relationship.
What happens if the IRS examines a credit we filed based on your study?
We provide audit support for every study we prepare. If the IRS issues IDRs related to the R&D credit, we respond to the technical questions, participate in examiner meetings, and defend the study methodology. Our studies are built from the IRS’s own Audit Techniques Guide — the documentation is designed to answer the questions examiners are trained to ask.
How do you handle Section G reporting?
Every study we deliver includes the data needed to complete Section G — business component identification, QRE breakdowns by component and expense type, and Section E disclosures. You receive the inputs ready to plug into the return. This is exactly the type of project-level detail that generalist firms struggle to produce on their own.
Do you also handle cost segregation for our real estate clients?
Yes. We prepare engineer-led cost segregation studies under the same partnership model — you refer the client, we perform the study, you file the return. With the OBBBA’s permanent 100% bonus depreciation, cost segregation is more valuable than ever for your commercial real estate clients. Both services generate recurring referral revenue under a single partnership arrangement.
What Should You Do Next?
Look at your client list. Start with clients in software, manufacturing, construction and engineering, aerospace, food and beverage, and life sciences. If they have employees who solve technical problems for a living, they’re probably performing qualifying activities.
Then reach out to us. We’ll walk through the partnership structure, evaluate a few of your clients at no cost, and give you a realistic picture of what the referral revenue looks like. We’re based in the Los Angeles area and work with CPA firms across California and nationwide.
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Martin Gamez
Founder, Tax Formulations
Martin is a tax credit specialist with over 25 years of experience in federal and state R&D tax credits, cost segregation, and business tax incentives. His background includes tenure at Big Four and Top 10 accounting firms, where he built and led cross-functional R&D credit practices serving clients across technology, manufacturing, aerospace, engineering, and life sciences. He now partners with CPA firms nationwide to deliver specialist tax incentive services to their clients. Read full bio →