The federal research and development (R&D) tax credit under Section 41 of the Internal Revenue Code can reduce tax liability for qualifying research expenditures. Eligibility depends on the activities performed, the expenses claimed, and the evidence supporting both. Technical complexity or commercial novelty alone does not establish entitlement to the credit.
The Statutory and Regulatory Foundation of Section 41
Section 41 provides an incremental research credit, with regular and alternative simplified calculation methods and additional statutory rules. A credit reduces tax liability; it does not reimburse every dollar spent on research. The four-part test applies separately to each business component, together with the statutory exclusions and expense requirements.
The Research Expenditure Test: The Threshold of Uncertainty
The historical cases discussed in this study applied the Section 174 expenditure requirement then in force. For tax years beginning after December 31, 2024, Section 41 refers to domestic research or experimental expenditures under Section 174A. The relevant uncertainty concerns capability, method, or appropriate design, based on information available when the research begins.
| Element of Uncertainty | Legal Definition and Application |
|---|---|
| Capability | Whether the taxpayer can develop or improve the product to achieve the intended technical result. |
| Method | How the taxpayer can develop or improve the product to achieve that result. |
| Design | What design is appropriate for the product or improvement. |
Recording the unresolved technical questions at the outset makes later substantiation easier. Ordinary professional work is not automatically excluded, but routine calculations or implementation of established solutions do not, by themselves, demonstrate qualifying uncertainty or experimentation.
Phoenix Design Group, Inc. v. Commissioner, T.C. Memo. 2024-113, illustrates the distinction. The court found that none of the three trial projects entailed qualified research. Complex engineering work and a general design process did not establish the required uncertainty and experimentation on the evidence presented.
The Technological Information Test
The experimentation must fundamentally rely on physical or biological science, engineering, or computer science. Research in the social sciences, arts, or humanities is excluded. The taxpayer need not prove an advance beyond the knowledge generally available in its industry.
The Business Component Test
A business component may be a product, process, software, technique, formula, or invention held for sale, lease, or license, or used in the taxpayer’s business. In Harper v. Commissioner, T.C. Memo. 2023-57, the Tax Court rejected the IRS’s categorical business-component arguments at partial summary judgment. That procedural ruling did not establish that every design project satisfied all credit requirements.
The Process of Experimentation Test
The activities must evaluate alternatives to resolve technical uncertainty for a new or improved function, performance, reliability, or quality. Modeling, simulation, and systematic trial and error can support this analysis. Merely labeling work “iterative” does not establish what was evaluated or why.
Documentation Failures and the Limits of the Cited Case Narrative
The source study attributed an R&D credit decision to “Kuzmo v. Commissioner, T.C. Memo. 2022-35.” That attribution is incorrect: the cited opinion is Pediatric Impressions Home Health, Inc. v. Commissioner, a worker-classification and employment-tax case. The alleged consultant facts and R&D holdings attributed to Kuzmo could not be verified and should not be treated as judicial authority. The documentation analysis below instead draws on the governing rules and identifiable research-credit decisions.
The Core Documentation Deficiencies
Section 6001 and Treasury Regulation Section 1.41-4(d) require records sufficient to substantiate the credit. Useful evidence connects technical work with particular projects, employees, dates, and expenses. A payroll total establishes compensation but may say little about the tasks performed.
Contemporaneous records are valuable, but the rules do not universally mandate one particular timesheet system or a prescribed technical study. Retrospective allocations need a credible factual foundation. A polished narrative cannot cure an inability to establish that qualifying activities occurred or to determine the related expenses.
The Nexus Requirement and the Consultant’s Dilemma
Consultants and other service businesses should distinguish research from sales, administration, and ordinary delivery work. Wage claims concern employees’ qualified services; supplies and contract research have separate requirements. A defensible allocation explains the connection between an expense and the qualifying work, rather than treating every project dollar as employee research time.
| Documentation Failure | Implications for Future Claims |
|---|---|
| Insufficient activity records | Support reconstructed estimates with reliable evidence; unsupported recollection may be inadequate. |
| Failure to define business components | Identify the specific product, process, or other component being developed or improved. |
| Inadequate evidence of experimentation | Explain the technical uncertainty, alternatives, evaluation, and results. |
| Expense-to-activity nexus failure | Reconcile claimed costs with the applicable expense category and qualifying activities. |
Comparative Analysis of Moore and Little Sandy Coal
These decisions illustrate failures of proof under existing requirements. They do not establish that every research-credit claim requires a newly invented documentation standard or that taxpayers inevitably lose disputed claims.
Scott Moore v. Commissioner: Executive Compensation and Direct Supervision
Moore v. Commissioner, T.C. Memo. 2023-20, involved compensation of Nevco’s president and chief operating officer. The Seventh Circuit affirmed on April 30, 2024. The evidence did not establish what fraction of his work involved qualified research. The appellate court stressed that the problem extended beyond missing written records: the witness could not reliably estimate the amount of qualifying experimentation.
General involvement in product development is not enough to quantify qualifying wages. Under Treasury Regulation Section 1.41-2(c), direct supervision means immediate supervision of qualified research; higher-level management alone is insufficient. Direct support is a separate category. Executive status neither automatically qualifies nor categorically disqualifies a person’s own research activities.
Little Sandy Coal and the Mathematics of “Substantially All”
In Little Sandy Coal Co. v. Commissioner, 62 F.4th 287 (7th Cir. 2023), the disputed claim concerned shipbuilding activities, with a tanker barge and dry dock selected as representative vessels. The court affirmed denial because the taxpayer failed to substantiate the required activity allocation. Newness of the vessels and arbitrary estimates did not establish experimentation.
The activity-based threshold can be expressed as:
Research activities constituting elements of a process of experimentation ÷ total research activities for the business component ≥ 80%.
Use costs or another consistently applied reasonable basis. This is not a test of what percentage of the finished vessel is new, nor is it simply a percentage of all company spending.
The Seventh Circuit rejected a categorical exclusion of direct support and direct supervision from the experimentation numerator. Their inclusion depends on the activities actually performed, not their labels. This interpretation does not dispense with proof.
The Shrink-Back Rule as a Compliance Safeguard
When the four-part test is not met for an entire business component, the regulations provide for applying it to the most significant subset of elements, and progressively smaller subsets where appropriate. Shrink-back does not rescue activities that themselves fail the requirements.
Application in the Shipbuilder Context
Little Sandy Coal also illustrates the need for evidence identifying qualifying subsets. The court could not construct a defensible narrower claim from unsupported allocations. Its decision should not be reduced to a finding that ordinary assembly necessarily exceeded an established 20% threshold across every vessel.
Strategic Implications for Future Applications
A practical documentation approach is to:
- Identify the business component and its technically meaningful subsets.
- Record the uncertainties and alternative approaches considered for each relevant subset.
- Link activity evidence and reasonable cost allocations to those subsets.
- Evaluate shrink-back where the overall component fails, without assuming a narrower claim will automatically qualify.
The Changing Regulatory Environment: Research Deductions and Filing Requirements
The source study’s statement that domestic research costs can no longer be deducted immediately is outdated. For tax years beginning in 2022 through 2024, the Tax Cuts and Jobs Act generally required five-year amortization of domestic research costs and 15-year amortization of foreign research costs, using the applicable midpoint convention.
The Value of the Credit Under Section 174A
The 2025 legislation added Section 174A, generally restoring immediate deductions for domestic research or experimental expenditures in tax years beginning after December 31, 2024. Taxpayers may instead elect capitalization and amortization over at least 60 months under the statutory conditions. Foreign research expenditures generally remain subject to 15-year amortization under Section 174.
Transition provisions address previously capitalized domestic expenditures and certain eligible small businesses. Elections, deadlines, and accounting-method procedures require separate analysis. The research deduction and research credit remain distinct: failure to satisfy the credit’s experimentation requirement does not automatically eliminate otherwise proper research-expenditure treatment.
Section 280C and the Election to Reduce the Credit
For the current domestic research regime, Section 280C coordinates the Section 174A deduction with the Section 41 credit to prevent a double benefit. The reduced-credit election is now in Section 280C(c)(2); older references to paragraph (3) reflect prior numbering.
Reduced credit = otherwise determined credit × (1 − maximum corporate income tax rate).
At a 21% maximum corporate rate, the reduced credit is 79% of the otherwise determined amount. A valid election avoids the corresponding deduction adjustment. The choice depends on the taxpayer’s circumstances and ordinarily must be made on a timely filed original return, including extensions. Net operating losses do not automatically make the election preferable.
IRS Procedural Changes: Form 6765 and Refund-Claim Review
Filing sufficiency and substantive eligibility are different questions. Acceptance of a filing does not establish that the underlying activities qualify, and a technically eligible project still requires a procedurally valid claim.
Form 6765 and Business-Component Information
The form is no longer merely the June 2024 proposal described in the source study. The December 2025 instructions make Section G optional for tax years beginning before 2026 and generally required for tax years beginning after 2025, with exceptions.
Exceptions include qualifying small businesses making the specified payroll-tax-credit election, and qualifying original-return filers with controlled-group QREs no greater than $1.5 million and average annual gross receipts no greater than $50 million under the prescribed rules. Required component detail generally follows the 80%/top-50 convention. That filing convention is separate from the substantive 80% experimentation test.
The Classifier Review System
For research-credit refund claims postmarked on or after June 18, 2024, the IRS waived two previously required initial submission items: the individuals performing each activity and the information each individual sought to discover. The initial claim must still identify the business components and research activities for each component, and provide total qualified wage, supply, and contract-research expenses.
The declaration under penalties of perjury remains a general refund-claim requirement; it was not a replacement for expense totals in the former five-item list. During the transition period extended through January 10, 2027, taxpayers generally receive 45 days to perfect a deficient claim before a final determination. The IRS may request more detail during examination.
| Audit and Filing Issue | Risky Approach | Supported Approach |
|---|---|---|
| Documentation timing | Reconstructing activities years later without a factual foundation. | Preserve existing technical records and review allocations while participants can explain them. |
| Burden of proof | Relying only on a broad technical narrative. | Connect activities, business components, and claimed expenses. |
| Executive time | Using an unsupported salary percentage. | Substantiate research, immediate supervision, or direct support actually performed. |
| Claim screening | Assuming a completed credit calculation establishes refund-claim sufficiency. | Include the required claim information and respond within applicable correction periods. |
The Role of Subject Matter Experts
Employees and technical leaders with firsthand knowledge can explain a project’s technical uncertainties and development history. Their contribution is most useful when it connects the business records to the activities underlying the claim.
SME Testimony and Corroborative Records
Credible testimony can help explain records and support reasonable allocations; it is not an automatic substitute for proof. Conversely, incomplete formal time tracking does not invariably defeat a claim. The relevant question is whether the evidence as a whole establishes qualifying work and a reliable basis for the claimed amount. Moore demonstrates the weakness of testimony that cannot distinguish broad research involvement from qualifying experimentation.
Fudim v. Commissioner, T.C. Memo. 1994-235, provides a contrasting, fact-specific example. The court accepted some research expenses and work allocations while rejecting inadequately supported amounts. It does not establish blanket acceptance of retrospective estimates or of every family member’s wages.
Best Practices for SME Integration
- Have knowledgeable participants review project narratives for technical accuracy.
- Check time and expense allocations periodically against calendars, design history, test records, and project systems.
- Separate firsthand factual testimony from formal expert opinion; academic credentials are not a universal requirement for an employee to describe work personally performed.
- Record both successful evaluations and unsuccessful alternatives where they help explain the experimentation.
Funded Research and Retention of Rights
Section 41 excludes research to the extent funded by another person or government. Under Treasury Regulation Section 1.41-4A(d), the analysis examines payment contingencies and substantial rights in the results. Receiving customer payments does not automatically make every expense ineligible.
The Smith and System Technologies Decisions
In System Technologies, Inc. v. Commissioner, docket No. 12211-21, the Tax Court denied the IRS’s motion for partial summary judgment in December 2024. The analysis considered Indiana law and potential customer remedies if the promised product could not be delivered. Denial of summary judgment was not a final determination that all claimed research qualified.
Smith also involved an earlier summary-judgment dispute, but its subsequent merits opinion, T.C. Memo. 2026-50, must be considered. The court found insufficient retained rights for two sample projects; for four others, retained rights did not make all expenditures creditable because payments were not contingent on research success. Potentially eligible expenses were limited by the funding received. A payment milestone alone is therefore not conclusive evidence of qualifying financial risk.
Retention of Substantial Rights
A taxpayer performing research for another party must examine whether it retains substantial rights to use the research results. Exclusive ownership is not always necessary, while incidental experience gained from performing a contract is insufficient. Where rights are retained but payments constitute funding, the exclusion may apply only to the funded portion. Contract terms, governing law, and actual payment arrangements should be reviewed together.
Implications for Future R&D Tax Credit Applications
A defensible claim combines technical evidence, expense analysis, and compliance with the rules for the relevant year. Adverse cases should guide that work without being portrayed as an inevitable outcome for an entire industry.
Engineering and Tax Collaboration
Technical teams can explain uncertainties, alternatives, and testing; finance teams can reconcile costs; tax specialists can apply eligibility rules and exclusions. A practical process brings these functions together. It should preserve usable evidence without imposing administrative steps that do not help establish the claim.
Accuracy-Related Penalties
Section 6662 generally provides a 20% [{“@context”:”https://schema.org”,”@type”:”VideoObject”,”name”:”What is the R&D Tax Credit?”,”description”:”The research and experimentation tax credit, most frequently known as the R&D tax credit, is a dollar-for-dollar reduction of your tax liability.”,”thumbnailUrl”:[“https://i.ytimg.com/vi/mzGRiA_MUl4/sddefault.jpg”,”https://www.dropbox.com/s/n1iyfxaeo6rm5tg/Fed%20-%20US%20Flag.jpg?raw=1″],”uploadDate”:”2019-10-14T00:00:00+00:00″,”duration”:”PT3M54S”,”contentUrl”:”https://www.youtube.com/watch?v=mzGRiA_MUl4″,”embedUrl”:”https://www.youtube.com/embed/mzGRiA_MUl4″,”publisher”:{“@type”:”Organization”,”name”:”Swanson Reed”,”url”:”https://swansonreed.com”,”logo”:{“@type”:”ImageObject”,”url”:”https://swansonreed.com/logo.png”}},”transcript”:”the research and experimentation tax credit most frequently known as the r d tax credit is a dollar for dollar reduction of your tax liability it was established in 1981 as an incentive for companies to invent create and innovate within the united states here at swanson read the biggest problem we see as specialized r d tax advisors is self-censorship companies believing they are not eligible for the r d tax credit when in reality the irs has a very broad definition of what it considers r d does your company design engineer or manufacture its own products do you look to improve the functionality performance or reliability of these products do you create new or improved processes in order to make things better faster or cheaper do you develop prototypes or computer generated models or do you develop software technology or other intellectual property if you answered yes to any of the previous questions your company may qualify for the r d tax credit congress has created a four-part test to help you identify activities that would be considered qualified research your work must satisfy these four main requirements it must be technological in nature a process of experimentation there must be technical uncertainty and a permitted purpose let’s go through these one by one one technological in nature this means the process of experimentation used to discover such information fundamentally relies on principles of the physical or biological sciences engineering or computer science two process of experimentation this is defined as a systematic process designed to evaluate one or more alternatives to achieve a result where the capability or method of achieving that result or the design of that result is uncertain the beginning of the research three technical uncertainty as a taxpayer you must intend to discover information that would eliminate uncertainty concerning the development or improvement of the business component and four permitted purpose it is a qualified purpose if research relates to a new or improved function increased performance enhanced reliability or enhanced quality it is not a qualified purpose if research relates to aesthetics meaning style taste cosmetics or seasonal design companies that are benefiting from the credit are typically receiving a minimum in the tens of thousands of dollars of federal tax credits each year so don’t pass up this chance to significantly lower your tax liability and improve your cash flow call swanson read representative today for an assessment”},{“@context”:”https://schema.org”,”@type”:”AccountingService”,”name”:”Swanson Reed”,”description”:”One of the largest Specialist R&D Tax Credit advisory firms in the United States, exclusively providing R&D Tax Credit claim preparation and audit compliance solutions for over 30 years.”,”url”:”https://www.swansonreed.com”,”logo”:”https://swansonreed.com/logo.png”,”image”:”https://www.swansonreed.com/wp-content/uploads/2025/03/Swanson-Reed-Specialist-RD-Tax-Credit-Advisors-is-the-largest-in-the-United-States.jpg”,”telephone”:”+1-800-986-4725″,”email”:”damian@swansonreed.org”,”priceRange”:”$195 – 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Who We Are: Swanson Reed is one of the largest Specialist R&D Tax Credit advisory firm in the United States. With offices nationwide, we are one of the only firms globally to exclusively provide R&D Tax Credit consulting services to our clients. We have been exclusively providing R&D Tax Credit claim preparation and audit compliance solutions for over 30 years. Swanson Reed hosts daily free webinars and provides free IRS CE and CPE credits for CPAs. What is the R&D Tax Credit? The Research & Experimentation Tax Credit (or R&D Tax Credit), is a general business tax credit under Internal Revenue Code section 41 for companies that incur research and development (R&D) costs in the United States. The credits are a tax incentive for performing qualified research in the United States, resulting in a credit to a tax return. For the first three years of R&D claims, 6% of the total qualified research expenses (QRE) form the gross credit. In the 4th year of claims and beyond, a base amount is calculated, and an adjusted expense line is multiplied times 14%. Click here to learn more. R&D Tax Credit Preparation Services Swanson Reed is one of the only companies in the United States to exclusively focus on R&D tax credit preparation. Swanson Reed provides state and federal R&D tax credit preparation and audit services to all 50 states. If you have any questions or need further assistance, please call or email our CEO, Damian Smyth on (800) 986-4725. Feel free to book a quick teleconference with one of our national R&D tax credit specialists at a time that is convenient for you. R&D Tax Credit Audit Advisory Services creditARMOR is a sophisticated R&D tax credit insurance and AI-driven risk management platform. It mitigates audit exposure by covering defense expenses, including CPA, tax attorney, and specialist consultant fees—delivering robust, compliant support for R&D credit claims. Click here for more information about R&D tax credit management and implementation. Our Fees Swanson Reed offers R&D tax credit preparation and audit services at our hourly rates of between $195 – $395 per hour. We are also able offer fixed fees and success fees in special circumstances. Learn more at https://www.swansonreed.com/services/our-fees/ Are you eligible?
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