Smith v. Commissioner

The United States Tax Court’s memorandum decision in Adrian D. Smith and Nancy W. Smith, et al. v. Commissioner, T.C. Memo. 2026-50 (consolidated Docket Nos. 13382-17, 13385-17, 13387-17), represents a watershed moment in corporate tax jurisprudence, particularly for the architecture and engineering (A&E) sectors. Filed on June 16, 2026, the opinion authored by Judge Christian N. Weiler addresses a multi-million-dollar tax dispute regarding the research and development (R&D) tax credit under Internal Revenue Code (I.R.C.) Section 41 and the immediate deductibility of research expenditures under I.R.C. Section 174.

The Smith decision navigates a complex, high-stakes matrix of statutory interpretation, administrative law, and partnership taxation. It establishes binding frameworks for evaluating the "funded research" exclusion under Treas. Reg. § 1.41-4A(d), defines the parameters of "reasonable compensation" for pass-through partners under Section 174(e), and serves as the Tax Court's first major post-Loper Bright defense of longstanding Treasury regulations. By juxtaposing the Smith decision against contemporary rulings like Meyer, Borgman & Johnson and Phoenix Design Group, alongside the legislative overhaul introduced by the One Big Beautiful Bill Act (OBBBA), a comprehensive operational roadmap emerges for professional services firms seeking to substantiate and defend highly lucrative innovation incentives.

The Legislative Architecture of the Federal R&D Tax Credit

To fully comprehend the stakes and the legal reasoning in Smith v. Commissioner, it is essential to first contextualize the statutory evolution of the federal R&D tax credit. Codified under Title 26 of the United States Code, the credit was initially enacted in 1981 under the predecessor to I.R.C. Section 41. The explicit legislative intent was to reward businesses that undertake severe technical challenges and incur the financial risks inherently associated with domestic innovation, thereby preventing the erosion of the United States' technological superiority. The credit functions as a dollar-for-dollar reduction in federal income tax liability for Qualified Research Expenses (QREs), which typically encompass employee wages, experimental supplies, and contracted research services.

However, shortly after its inception, Congress observed that taxpayers were interpreting the 1981 provisions far too broadly, attempting to claim the credit for virtually any expense tangentially related to product development or standard business operations. To curtail these abuses, the Tax Reform Act of 1986 instituted a stringent statutory framework to limit eligible research activities. This framework, which forms the bedrock of modern Section 41 compliance, demands that taxpayers satisfy a rigorous, multi-tiered qualification process before any expenses can be monetized.

The Four-Part Statutory Test for Qualified Research

Under current law, activities must strictly satisfy a four-part test to constitute "qualified research". Table 1 delineates the specific requirements of this statutory gauntlet.

Even if an entity successfully navigates the four-part test, the activities must not fall into one of the eight statutory exclusions outlined in Section 41(d)(4), which include research after commercial production, adaptation of existing components, internal-use software (subject to specific exceptions), foreign research, and most critically for the A&E sector, funded research.

In an incredibly rare pre-trial maneuver for a professional services audit, the IRS formally conceded that the architectural firm in Smith satisfied the fundamental four-part test for the projects at issue, and that no standard exclusions applied other than the funded research exclusion. Furthermore, the parties stipulated to a fixed-base percentage of 3.00%. This unique concession isolated the ensuing litigation entirely to the highly contentious boundaries of contract interpretation (funding) and the statutory limits of reasonable compensation.

Factual Matrix: AS+GG and the Pursuit of Supertall Innovation

The petitioners in this consolidated case are the founding partners of Adrian Smith + Gordon Gill Architecture, LLP (AS+GG), alongside their respective spouses, who reported the flow-through research credits on their joint personal income tax returns. Established in Chicago, Illinois, as a limited liability partnership on November 2, 2006, AS+GG occupies a highly specialized, elite echelon within the global architectural and engineering market.

The professional pedigrees of the partners are paramount to understanding the aggressive financial and tax postures taken by the firm, particularly concerning the compensation disputes that would later arise. Adrian D. Smith, possessing approximately four decades of high-level architectural design experience by the 2008 tax year in question, previously served as a principal at the globally renowned firm Skidmore, Owings & Merrill (SOM). During his tenure at SOM, Smith was the lead visionary behind some of the world's most recognizable supertall structures, including the Burj Khalifa in Dubai (the world’s tallest building at 828 meters), the Jin Mao Tower, the Pearl Water Tower, and the Nanjing Greenland Financial Center.

Despite his monumental contributions to global architecture, Smith experienced profound friction regarding his compensation at SOM. Historical testimony revealed that while his designs generated an estimated $6 million to $8 million in annual profits for the firm, his personal compensation was capped between $800,000 and $1.3 million. Driven by a desire for both creative independence and equitable financial remuneration, Smith departed SOM to establish his own practice.

He was joined by Carlisle Gordon Gill, a design partner with over 31 years of experience and a master's degree from Harvard University. Gill also possessed an elite pedigree from SOM, where he collaborated on the Pearl River Tower, recognized as the world's first net-zero energy supertall building. Completing the leadership triad was Robert J. Forest, who was admitted as the management partner in December 2006. Forest, who sacrificed a lucrative, impending partnership at SOM to join what he described as the "Dream Team," assumed responsibility for the firm's technical execution, global client relations, consultant selection, and the negotiation of complex international fee structures.

Rather than executing standard commercial or residential designs, AS+GG focused almost exclusively on designing highly innovative, sustainable, and supertall structures (buildings generally exceeding 300 meters in height). The firm's methodology eschewed the traditional linear approach of architecture—where a conceptual design is subsequently handed off to external engineers to force into structural compliance. Instead, AS+GG integrated a holistic, iterative approach, intertwining architectural vision, structural engineering, and mechanical systems from the initial conceptual phase. This rigorous process of experimentation was necessary to achieve their signature net-zero carbon and net-zero energy efficiencies at unprecedented vertical scales.

The Disputed Tax Years and the Statutory Notices of Deficiency

The litigation centered on massive R&D tax credits claimed by AS+GG for the 2008, 2009, and 2010 tax years. Due to the partnership structure, these credits flowed through to the individual partners. For the 2008 tax year alone, the firm faced a catastrophic tax exposure exceeding $3.1 million in disallowed research credits, with compounding financial liabilities stretching into the subsequent years. Following a comprehensive audit, the IRS issued Statutory Notices of Deficiency (SNOD) to the partners, triggering the petition to the United States Tax Court for relief.

Before addressing the substantive tax law regarding the R&D credit, the Tax Court had to resolve a vital procedural dispute regarding the burden of proof. Under Tax Court Rule 142(a)(1), the Commissioner's determinations in a SNOD are generally granted a presumption of correctness, placing the burden of proof squarely on the taxpayer to demonstrate error. The petitioners attempted an aggressive procedural maneuver to shift this burden, arguing that mathematical discrepancies existed between their originally filed returns and the calculations within the SNODs. Relying on Seventh Circuit precedent in Pittman v. Commissioner, the taxpayers argued these discrepancies rendered the IRS's determinations "arbitrary and excessive," which would strip the government of its presumption of correctness.

Judge Weiler rejected this procedural tactic. The court's analysis clarified that the numerical discrepancies did not stem from arbitrary or capricious government action. Rather, they were the direct result of an undisputed accounting method adjustment that the IRS initiated during the examination phase. Because the petitioners consciously chose not to challenge this specific accounting method change in the consolidated cases, the foundational mathematics of the SNOD possessed a rational and legally sound basis. Consequently, the presumption of correctness remained fully intact, leaving the evidentiary burden on the taxpayers to prove their entitlement to the credits.

The Six Sample Projects

Given the sheer volume of AS+GG's portfolio—comprising 48 distinct and massive architectural projects during the years at issue—the parties agreed to a pretrial stipulation limiting the judicial review to six representative sample projects. This streamlining maneuver was essential for judicial economy, allowing the court to evaluate the contractual nuances of massive international developments without being bogged down by redundant evidentiary discovery.

Table 2 outlines the six sample projects evaluated to determine the applicability of the funded research exclusion.

Deep Dive: The Funded Research Exclusion in Smith v. Commissioner

With the four-part test conceded by the IRS, the primary battlefield in Smith became the "funded research" exclusion under I.R.C. § 41(d)(4)(H). The fundamental legislative intent behind the R&D credit is to reward the specific corporate entity that actually bears the financial risk of innovation. If a taxpayer is merely performing research on behalf of a client who is footing the bill and retaining the intellectual property, the taxpayer is acting as an insulated contractor, not an innovator risking capital. Consequently, the statute explicitly excludes from the definition of qualified research "[a]ny research to the extent funded by any grant, contract, or otherwise by another person".

Because the statutory text of Section 41 does not specifically define the mechanics of what constitutes "funded," the Treasury promulgated Treas. Reg. § 1.41-4A(d). This regulation establishes a stringent, two-pronged standard to determine if research is funded. To avoid the exclusion and claim the credit, a taxpayer must prove both of the following conditions:

• The taxpayer must retain substantial rights in the results of the research.
• Payment to the taxpayer must be contingent on the success of the research, thereby forcing the taxpayer to bear the true economic risk of experimental failure.

Failing either prong fundamentally disqualifies the research expenses from credit eligibility. The Tax Court applied this framework systematically to the six AS+GG sample projects, resulting in a bifurcated, highly nuanced ruling.

Prong One: Retaining Substantial Rights and the Role of Foreign Law

The "substantial rights" doctrine dictates that if a client contract retains exclusive ownership of the intellectual property, or restricts the researcher's ability to use the resulting technological information in their broader trade or business, the researcher is merely performing a service for hire.

In evaluating the six contracts, Judge Weiler relied heavily on a triad of established precedents: Tangel v. Commissioner, Lockheed Martin Corp. v. United States, and Dynetics, Inc. v. United States. In Tangel, the contract explicitly restricted the developer from using the buyer-funded technical information, designs, or tooling to develop or sell similar substitute products to anyone other than the buyer without prior written consent. The Tax Court held that such a clause completely prevents the developer from retaining substantial rights because they cannot freely monetize or utilize the results of their own research.

Applying this logic to AS+GG, the court found that for two of the six sample projects, the architectural firm completely failed the substantial rights test. The fatal flaw was entirely contractual. The agreements for these two projects explicitly designated the architectural and engineering work product as "works made for hire" under U.S. copyright law (and equivalent international doctrines). The language stipulated that all project data, schematics, and models were the "absolute property" of the client. Furthermore, mirroring the fatal flaw in Tangel, the contracts required AS+GG to obtain "express prior written approval" from the developer before reusing any project information for any outside purposes.

In a desperate attempt to salvage these two projects, the petitioners mounted a novel defense based on the acquisition of intangible expertise. They argued that by engaging in the grueling, unprecedented R&D required to engineer supertall structures, the partners and staff acquired highly specialized "institutional knowledge" and skills that the firm could deploy on future global projects. They posited that this retained knowledge constituted a "substantial right" sufficient to satisfy the regulation.

The Tax Court swiftly dismantled this argument, citing the explicit text of Treas. Reg. § 1.41-4A(d)(2). The court categorized enhanced institutional expertise and residual skill acquisition as a mere "incidental benefit" of performing contracted services. While AS+GG undeniably became better architects by performing the work, an incidental benefit does not rise to the legal level of a retained substantial right in the actual, tangible research deliverables.

However, for the remaining four sample projects (including the Atrium City Tower and Masdar HQ), AS+GG secured a vital victory on the first prong, largely due to a fascinating intersection of tax law and international copyright law. The research contracts for these projects were governed by the laws of Dubai and the United Arab Emirates (UAE). The taxpayers utilized Tax Court Rule 146, which grants the court broad discretion to consider any relevant material regarding foreign law. The court analyzed the Berne Convention for the Protection of Literary and Artistic Works, alongside UAE legal standards, which automatically grant copyright and reproduction rights to the creators of architectural designs unless those rights are explicitly and unequivocally waived in writing. Because the contracts for these four projects lacked the draconian "work for hire" language found in the other two, the default protections of foreign law applied, supporting AS+GG's claim that they retained substantial rights.

Prong Two: Contingent on Success and the Economic Risk Test

Passing the substantial rights prong for four projects merely advanced the analysis to the more perilous second prong: Was payment to AS+GG truly contingent on the success of the research?

The core of the IRS's argument—an argument that has devastated the professional services sector in recent years—was that A&E firms operating under standard phased-fee or fixed-price contracts do not bear the economic risk of research failure; they merely bear the economic risk of budget mismanagement.

To illustrate, the Atrium City Tower contract segmented compensation into standard architectural phases promulgated by the American Institute of Architects (AIA): Concept Design, Schematic Design, Design Development, and Construction/Tender Documents. The taxpayers argued that because the client had to approve each design milestone before AS+GG was paid for that phase, payment was inherently contingent on the success of the design.

The court emphatically rejected this interpretation. Relying heavily on the Eighth Circuit's recent decision in Meyer, Borgman & Johnson, Judge Weiler ruled that tying payments to monthly progress or the completion of generic design phases does not constitute a contingency on success in the context of the R&D credit. To meet the regulatory standard, a contract must explicitly predicate compensation on the successful resolution of the technological uncertainty itself.

The contracts obligated AS+GG to meet stringent professional standards of care and to deliver structurally sound designs. However, as the court noted, "performing to a general standard of care does not 'mandate success'" in the experimental sense. If AS+GG delivered a complete set of schematic designs for a 1,000-meter tower, they were legally entitled to payment for that phase, regardless of whether their experimental net-zero carbon HVAC algorithms ultimately proved effective upon final construction. Because AS+GG was guaranteed compensation upon the delivery of the service—irrespective of the ultimate scientific success or failure of the innovation—they bore no actual financial risk regarding the research outcome. Consequently, the Tax Court ruled that the research for these four projects was funded, and thereby largely disqualified.

The Pro-Rata Allocation Framework: A Partial Lifeline

While the determination that the research was funded represented a severe financial blow to AS+GG, the Tax Court did not immediately reduce the credits to zero for the four projects that retained substantial rights. Instead, the court instituted a highly complex pro-rata fractional qualification system.

Under this framework, taxpayers are permitted an opportunity to prove that the QREs expended on a specific project materially exceeded the total payments received from the client for that project. For example, if an architectural firm spends $5 million in allowable employee wages and experimental supplies developing a novel structural joint, but only receives $4 million in contractual milestone payments from the developer, the $1 million deficit represents true, unfunded economic risk borne by the taxpayer. Consequently, only that excess amount is eligible to be claimed as QREs for the credit.

Given the highly lucrative profit margins typical of elite firms like AS+GG (recall Smith's assertion of generating $6-$8 million in profit annually), proving that internal costs exceeded gross client revenues is practically difficult. However, this legal mechanism remains a vital, albeit narrow, lifeline for professional services firms executing massive, over-budget R&D initiatives.

Table 3 synthesizes the Tax Court's bifurcated legal conclusions regarding the six sample projects.

Evaluating Reasonable Compensation for Partners Under Section 174(e)

While the funded research exclusion dominated the analysis of eligibility, the secondary, yet equally financially critical, issue in Smith involved the absolute limits of the quantum of the credit. This required a deep dive into the concept of "reasonable compensation" under I.R.C. Section 174.

When Congress enacted the research credit, it tethered eligibility directly to Section 174; an expense must be deductible under Section 174 to be eligible for the Section 41 credit. Historically, taxpayers struggled with the proper treatment of R&D expenditures, and the IRS heavily scrutinized massive executive salaries masquerading as research costs. The seminal case addressing this was Driggs, where a physician attempted to offset massive R&E expenses incurred by a typesetting software joint venture against his medical income. The IRS challenged the deduction, arguing the amounts were unreasonable, but the district court initially ruled that because Section 174 did not contain an explicit reasonableness standard, any expenditure falling within the definition of R&E was fully deductible regardless of the amount.

In direct response to Driggs, Congress incorporated a strict reasonableness standard into Section 174 through the Omnibus Budget Reconciliation Act (OBRA) of 1989. The newly minted Section 174(e) mandated that a research or experimental expenditure is deductible "only to the extent that the amount thereof is reasonable under the circumstances".

The Intersection of Section 174(e) and Partnership Pass-Throughs

The application of Section 174(e) becomes mechanically complex within a partnership context. Partners in service partnerships (such as LLPs) are not technically W-2 "employees" of their own firm; they do not pay themselves a standard salary, but rather receive guaranteed payments or distributive shares of net partnership income. Recognizing that partners would be unjustly locked out of the R&D credit if only W-2 wages qualified, Congress enacted a special definition under Section 41, stipulating that for a partner performing qualified research, "wages" equates to the partner's net income from self-employment.

In Smith, the calculation of these wages operated sequentially: First, the IRS and each partner stipulated to the percentage of time during the taxable year that the partner actually engaged in qualified research activities (e.g., conceptualizing the supertall designs). Second, each partner multiplied this stipulated percentage by their total share of partnership income treated as self-employment income. Because AS+GG was phenomenally profitable, the resulting wage QREs claimed for the 2008 tax year were staggering:

• Adrian Smith: Claimed approximately $16.2 million in wage QREs (The IRS conceded only $1.2 million as reasonable).
• Gordon Gill: Claimed approximately $5.9 million in wage QREs (The IRS conceded only $813,150 as reasonable).
• Robert Forest: Claimed approximately $2.6 million in wage QREs (The IRS conceded only $408,593 as reasonable).

The IRS vehemently argued that these amounts vastly exceeded the fair market value of the actual scientific research services performed. In related Field Attorney Advice and internal memoranda, the IRS has consistently maintained that Section 174(e) prohibits taxpayers from claiming full deductions for massive distributions when the actual value of the scientific labor is worth far less, effectively characterizing the excess payments as standard distributions of business profit (the general cost of doing business) rather than compensation for R&D.

The Golsen Rule and the Independent Investor Test

To adjudicate this immense discrepancy, Judge Weiler was bound by the Golsen rule (Golsen v. Commissioner, 54 T.C. 742 (1970)), which requires the Tax Court to follow the established precedent of the judicial circuit to which the case would be appealed. Because AS+GG is headquartered in Chicago, Illinois, the case falls squarely under the jurisdiction of the United States Court of Appeals for the Seventh Circuit.

The Seventh Circuit occupies a unique and highly taxpayer-favorable position in compensation jurisprudence. For decades, courts utilized the multi-factor Mayson test to determine reasonable compensation, evaluating subjective factors such as industry averages, employee qualifications, economic conditions, and the complexity of the business. However, in the landmark decision Exacto Spring Corp. v. Commissioner, Judge Richard Posner explicitly rejected the Mayson test for the Seventh Circuit. Posner criticized the multi-factor test as hopelessly ambiguous, arbitrary, and inherently subjective, replacing it entirely with the independent investor test.

Table 4 compares the two predominant legal standards for evaluating compensation.

The independent investor test establishes a rebuttable presumption of reasonableness if the entity's owner-managers generate a "far higher return than [investors] had any reason to expect". The underlying economic agency theory dictates that prime managers are hired specifically to maximize the value of assets entrusted to them. If the managers succeed in delivering astronomical rates of return on equity, it becomes logically implausible to argue that those managers are being overpaid; a rational independent investor would gladly pay an executive $16 million if that executive's labor produced $50 million in profit. The only way the IRS can rebut this presumption is by proving that the extraordinary financial return was triggered by a purely extraneous macroeconomic event (e.g., a sudden, unpredicted surge in global commodity prices), disconnected from the executives' actual labor.

Application to the AS+GG Partners

Applying the independent investor test to AS+GG fundamentally favored the taxpayers. The architectural firm generated tens of millions in profits almost entirely due to the unparalleled reputation, highly specialized expertise, and relentless creative labor of Smith, Gill, and Forest.

The parties did not dispute the underlying mathematics; the return on equity generated by AS+GG during the 2008 tax year easily satisfied the threshold of a highly satisfied independent investor. Consequently, the Tax Court ruled that the entirety of the compensation claimed by the partners for 2008—including Smith's monumental $16.2 million calculation—was entirely reasonable under Section 174(e). While the funded research exclusion ultimately curtailed the allowable credits based on contract language, this victory on compensation limits provides a vital, impenetrable shield for highly compensated founders in pass-through entities across the Seventh Circuit.

The Loper Bright Challenge: Administrative Law at a Crossroads

Beyond the intricate mechanics of tax accounting and contract law, Smith v. Commissioner represents one of the earliest and most consequential tests of federal administrative power following the Supreme Court's 2024 decision in Loper Bright Enterprises v. Raimondo, 144 S. Ct. 2244 (2024).

Loper Bright effectively dismantled the four-decade-old Chevron deference doctrine, which previously commanded federal courts to defer to an agency's reasonable interpretation of ambiguous statutory text. Under the new paradigm, courts are directed to exercise independent judgment and ascertain the "single best reading" of a statute, removing the automatic judicial thumb from the scale in favor of government agencies like the IRS.

The Taxpayers' Assault on Treas. Reg. § 1.41-4A(d)

Sensing severe vulnerability in the Treasury's regulatory framework in this newly deregulated environment, the petitioners in Smith launched a direct, existential assault on the validity of Treas. Reg. § 1.41-4A(d). They argued that the two-pronged test created by the IRS (requiring both substantial rights and economic risk) was an unauthorized, burdensome expansion of the bare statutory text of Section 41(d)(4)(H), which simply states that research is excluded to the extent "funded" by another person.

The taxpayers proposed an alternative, plain-dictionary definition, suggesting "funded" simply means "a sum of money set apart for a specific objective". Under this literalist, textual interpretation, because the client payments made to AS+GG were for general architectural services rather than specifically earmarked, isolated "research grants," the projects should bypass the exclusion entirely. The petitioners asserted that post-Loper Bright, the Tax Court was obligated to adopt this superior textual reading, discard the Treasury's interpretation, and allow the credits.

Statutory Stare Decisis: A Shield for Long-Standing Precedent

Judge Weiler categorically rejected the taxpayers' administrative law challenge, utilizing a two-tiered defense that will likely serve as the Department of Justice's blueprint in all future regulatory tax litigation (a strategy echoed in contemporary DOJ analyses authored by figures such as Lindsay Clayton regarding the defense of agency actions post-Loper Bright).

First, the court invoked the doctrine of statutory stare decisis. In writing the majority opinion in Loper Bright, Chief Justice Roberts explicitly included a vital limiting principle: the overturning of Chevron did not automatically invalidate the thousands of prior judicial decisions that relied upon it. The Supreme Court noted that "the holdings of those cases that specific agency actions are lawful... are still subject to statutory stare decisis despite our change in interpretive methodology".

Judge Weiler noted that over the preceding decades, multiple appellate bodies—including the Tax Court, the Court of Federal Claims, and various Federal Circuits—had extensively analyzed and upheld Treas. Reg. § 1.41-4A(d) under Chevron. Cases such as Meyer, Borgman & Johnson, Fairchild Industries, and Geosyntec had deeply entrenched the regulation into federal common law. The court unequivocally declared, "we find that the holdings in our prior cases and the aforementioned decisions... continue to remain in effect," effectively sealing off the avenue for retroactive invalidation based purely on a shift in Supreme Court interpretive methodology.

Skidmore Deference and the Power to Persuade

Secondarily, the court evaluated the regulation under the enduring framework of Skidmore v. Swift & Co.. Even absent the mandatory Chevron deference, Loper Bright explicitly permits courts to give "careful attention to the judgment of the Executive Branch" when the agency's views represent a "body of experience and informed judgment".

The Tax Court highlighted a critical statutory distinction: Congress explicitly delegated authority to the Treasury under I.R.C. Section 7805(a) to define the criteria and issue necessary rules for the enforcement of the internal revenue laws, specifically including the funded research exclusion. Because the Treasury exercised this explicit delegation to formulate long-standing guidelines that provide clarity and systemic certainty to taxpayers across multiple industries, the regulation possessed immense persuasive weight. Furthermore, the court noted practically that adopting the taxpayers' overly simplistic dictionary definition of "funded" would severely erode the legislative intent of the statute, providing no functional benefit to the equitable administration of the tax code.

Thus, Smith firmly establishes that deeply embedded Treasury regulations governing the R&D credit will survive the Loper Bright era, shielded by the dual armor of stare decisis and congressionally delegated Skidmore persuasion.

Comparative Jurisprudence in the A&E Sector

To fully contextualize the gravity of the Smith decision, it must be analyzed alongside the recent constellation of A&E tax cases that have fundamentally reshaped the IRS audit landscape. The IRS has clearly identified professional services as an area of high audit scrutiny, deploying a rigorous "Classifier review system" to challenge claims.

Meyer, Borgman & Johnson v. Commissioner

Decided by the Eighth Circuit in 2024, Meyer, Borgman & Johnson, Inc. (MBJ) v. Commissioner, 100 F.4th 986, established the prevailing high bar for the economic risk test that doomed AS+GG. MBJ, a structural engineering firm, operated under fixed-price contracts. The firm argued that fixed-price arrangements inherently carry economic risk; if a structural design required extensive internal revisions to meet code or satisfy a client, MBJ absorbed the labor cost, thereby risking its profit margin.

The Eighth Circuit dismantled this argument. General boilerplate requirements that a design must be "structurally sound" or meet an industry "standard of care" do not mandate experimental research success. The courts demand extreme specificity: the contract must explicitly state that compensation will be withheld if the specific technological research fails to yield the intended outcome. Because MBJ merely risked budget overruns while attempting to deliver a standard engineering product, they were denied the credit. Smith directly imported this logic to invalidate the phased-billing structures of the architectural firm.

Phoenix Design Group v. Commissioner

While Smith and MBJ hinged on the funded research exclusion, Phoenix Design Group, Inc. v. Commissioner, T.C. Memo. 2024-113, attacked the A&E industry on the foundational four-part test.

Phoenix Design, a mechanical, electrical, and plumbing (MEP) firm, attempted to claim credits across over 200 projects. The IRS challenged their compliance with the Section 174 Test (which requires investigatory activity) and the Process of Experimentation Test. The firm argued that performing complex engineering calculations to optimize HVAC systems inherently resolved technological uncertainty.

The Tax Court vehemently disagreed, establishing a critical boundary for the sector: performing basic mathematical calculations on objectively available data to ensure a ducting system meets building codes is not an investigatory activity. It is merely the rote application of established engineering principles. Furthermore, performing these calculations and communicating the results to an architect does not mirror the scientific method required for a valid process of experimentation. Phoenix Design serves as a stark warning that routine A&E compliance work cannot be masqueraded as qualified research, distinguishing the rote work in Phoenix from the genuinely novel supertall structural innovations seen in Smith.

System Technologies and the Role of State Law

In contrast to the strict textual rejections seen in MBJ and Smith, System Technologies, Inc. v. Commissioner provides a glimmer of hope through the strategic application of governing law.

System Technologies designed custom finishing systems under contracts that lacked explicit refund provisions tied to research failure. However, the contracts contained a choice-of-law clause designating Indiana state law as the governing framework. The Tax Court noted that Indiana's Uniform Commercial Code (UCC) and state contract doctrines provide broad, statutory remedies for buyers if a seller fails to deliver a functional product, overriding general contract warranties. The court ruled that these state-level legal protections effectively placed System Technologies at financial risk, overriding the silence of the contract and rendering the research unfunded. This echoes the pre-trial maneuvers in Smith, where UAE law and the Berne Convention were successfully leveraged to secure the "substantial rights" prong for the foreign projects.

Table 5 provides a rapid comparison of these pivotal decisions shaping the A&E sector.

Industry Implications and Strategic Commentary: The OBBBA Era

The financial stakes underpinning cases like Smith have been radically magnified by recent macroeconomic legislative shifts, specifically the passage of the One Big Beautiful Bill Act (OBBBA).

Historically, under the Tax Cuts and Jobs Act (TCJA) starting in the 2022 tax year, taxpayers were stripped of their ability to fully deduct Section 174 research expenditures in the year they were incurred. Instead, they were forced to capitalize and amortize these costs over 5 years for domestic research and 15 years for foreign research. This severe cash-flow restriction caused many A&E firms to abandon R&D claims entirely, as the immediate tax burden of capitalizing expenses often outweighed the benefit of the Section 41 credit.

The enactment of the OBBBA surgically repealed this amortization requirement for domestic costs, allowing domestic research expenses to once again be immediately deducted under Section 174. This legislative windfall effectively reopens the door to massive liquidity, permitting firms to claim both accelerated deductions and the 14%–20% federal tax credit on identical QREs (wages, supplies, contractors). Because Section 174 eligibility is the gateway to the Section 41 credit, the Smith decision’s validation of reasonable compensation limits under Section 174(e) provides massive downstream value to founders looking to leverage the OBBBA provisions.

Contractual Architecture: Drafting for the R&D Credit

The foremost insight derived from the Smith and MBJ debacles is that R&D tax credit eligibility is no longer determined solely in the laboratory, the engineering bay, or the CAD interface; it is determined in the general counsel's office prior to project commencement. The IRS scrutiny is now laser-focused on the strict interpretation of client contracts. A firm must prophylactically draft its Master Service Agreements (MSAs) and Statements of Work (SOWs) to satisfy the Treas. Reg. § 1.41-4A(d) parameters.

Strategic Imperatives for Contract Drafting:

• Explicit IP Retention: Firms must aggressively strike boilerplate clauses transferring "all discoveries, inventions, and improvements" or designating designs as "works made for hire". The contract must affirmatively state the firm retains the right to utilize the underlying engineering models, algorithms, and processes on future projects without seeking client permission.
• Severing Payment from Project Phases: Relying on standard AIA phase-billing structures (Schematic, Design Development, etc.) is fatal to the economic risk test. Contracts should incorporate specific language tying payment milestones directly to the successful resolution of technical deliverables. For high-risk, experimental components (e.g., custom curtainwall assemblies, geothermal integration), the contract should include targeted refund provisions or warranty clauses triggered specifically if the innovation fails to meet technical benchmarks, thereby isolating the financial risk on the researcher.
• Choice of Law Optimization: As demonstrated in System Technologies, firms should carefully select governing law jurisdictions that provide robust, default UCC remedies favoring the buyer, as these statutory backstops can artificially satisfy the economic risk requirement when the contract text is ambiguous.

Substantiation and Documentation Imperatives

Finally, as demonstrated by the catastrophic failure in Phoenix Design Group, contemporaneous documentation is the bedrock of IRS defense. The IRS's updated Classifier review system demands granular specificity. Furthermore, under guidelines established in IRS Field Attorney Advice (FAA 20214101F), taxpayers submitting refund claims for R&D credits must provide extremely specific information, including all business components, all research activities performed, the names of all individuals performing the research, and the specific information sought to be discovered.

Vague time-tracking entries labeled "design coordination" or "code review" are legally insufficient to prove a process of experimentation. Firms must transition to activity-based accounting, utilizing descriptors that mirror the scientific method. Acceptable documentation must capture the hypotheses formulated, the alternatives tested, and the quantitative evaluation of those models (e.g., "Iterative BIM modeling for structural fatigue," "Simulated geothermal loop sizing algorithms," or "Evaluating differential vibration responses in support columns"). Furthermore, firms must utilize the "Shrink-Back Rule" to target the specific sub-assembly where the experimentation occurred, rather than attempting to claim an entire building as a single business component.

Conclusion

The Smith v. Commissioner decision functions as a critical inflection point for the architecture and engineering industries, as well as the broader landscape of corporate tax litigation. By solidifying the stringent boundaries of the funded research exclusion, the Tax Court has effectively ended the era where professional services firms could claim R&D credits based on generalized fixed-price contracts and standard design iterations. The burden now lies entirely on proactive contractual architecture—explicitly retaining intellectual property rights and formally tethering compensation to the measurable success of specific technological innovations.

Concurrently, the court's validation of the independent investor test for evaluating reasonable compensation under Section 174(e) delivers a massive victory for highly specialized founders of pass-through entities, ensuring that their lucrative profit distributions cannot be arbitrarily suppressed by the IRS when the market dictates extraordinary returns. Finally, the court’s utilization of statutory stare decisis to shield Treas. Reg. § 1.41-4A(d) from the fallout of Loper Bright provides a clear indication that while Chevron deference may be dead at the Supreme Court, deeply entrenched administrative tax frameworks will remain firmly embedded in federal jurisprudence. As firms seek to capitalize on the restored immediate expensing rules under the OBBBA, the legal principles codified in Smith will serve as the indispensable blueprint for securing and defending American innovation capital.