Intermountain Electronics Inc. v. Commissioner

The jurisprudence surrounding the United States federal research and development (R&D) tax credit is currently undergoing a period of profound reevaluation, driven by aggressive administrative enforcement, evolving statutory requirements, and increasingly nuanced judicial interpretations. At the center of this shifting landscape is the United States Tax Court’s pivotal order in Intermountain Electronics, Inc. v. Commissioner, Docket No. 11019-19, issued in the spring of 2024. By denying the Internal Revenue Service’s (IRS) motion for partial summary judgment, the Tax Court addressed a critical and highly contested question of statutory interpretation: whether the expenses incurred by production personnel in the physical fabrication of a functional "pilot model" are categorically excluded from the numerator of the "substantially all" fraction utilized to evaluate the process of experimentation under Internal Revenue Code (IRC) Section 41.

The IRS has long sought to restrict the definition of qualified research expenses (QREs), frequently arguing that heavy manufacturing and production activities—even those purportedly necessary to test a hypothesis or resolve technical uncertainty—constitute routine commercial fabrication rather than genuine scientific research. In the Intermountain Electronics litigation, the IRS attempted to establish a definitive, unassailable legal boundary, positing that production expenses cannot, as a matter of law, constitute active elements of a process of experimentation. The Tax Court’s explicit rejection of this premise not only clarifies its own prior, heavily debated precedent but also fundamentally alters the strategic posture of corporate taxpayers engaged in custom fabrication, precision engineering, and proprietary product development.

The exhaustive analysis presented herein deconstructs the Intermountain Electronics litigation in its entirety, contextualized within the broader statutory framework of IRC Section 41 and the amortization mandates of IRC Section 174. Furthermore, this report integrates extensive commentary from leading tax advisory institutions and examines parallel judicial developments in contemporary cases such as Little Sandy Coal Co., Phoenix Design Group, and System Technologies, to provide a definitive assessment of the modern R&D tax controversy environment.

Part I: The Statutory and Regulatory Architecture of the Research Credit

The federal research credit, codified under IRC Section 41, was originally enacted on a temporary basis by the Economic Recovery Tax Act of 1981. Congress introduced this legislative mechanism to stimulate domestic business investment in technological innovation, seeking to reverse a perceived decline in American research and experimentation and thereby enhance the competitive economic stance of the United States. Over the subsequent decades, the credit underwent numerous legislative modifications and temporary extensions before being permanently enshrined in the tax code by the Protecting Americans from Tax Hikes (PATH) Act of 2015. Despite its permanence, the ambiguity inherent in the statutory language has generated decades of persistent friction between corporate taxpayers and the IRS regarding the precise definitional boundaries of "qualified research".

The Four-Part Test for Qualified Research

To successfully claim the research credit, a taxpayer bears the burden of demonstrating that its activities satisfy a rigorous, conjunctive four-part test defined in IRC Section 41(d). Activities that satisfy these criteria are considered qualified research unless they fall into one of eight specific statutorily excluded categories, such as research conducted after commercial production, the adaptation of existing business components, the duplication of existing components, surveys and studies, internal-use computer software (subject to specific regulatory exceptions), foreign research, research in the social sciences, or funded research.

The crux of modern R&D tax controversy, including the core dispute in the Intermountain Electronics litigation, centers almost exclusively on the fourth element: the process of experimentation test and its accompanying "substantially all" mathematical requirement.

The Mathematical Mechanics of the "Substantially All" Fraction

In accordance with IRC Section 41(d)(1)(C) and Treasury Regulation Section 1.41-4(a)(6), taxpayers must establish that 80 percent or more of their research activities for a given business component constitute a process of experimentation. The Treasury regulations dictate that this 80 percent threshold is measured on a cost basis or other consistently applied reasonable basis, such as labor hours.

The "substantially all" test is fundamentally an exercise in fractions and allocations. For a taxpayer to pass this test and qualify a business component, the mathematical equation must yield a result of 0.80 or higher.

If the threshold is successfully met, the regulation operates as a powerful safe harbor mechanism: the remaining 20 percent or less of the research activities are absorbed and deemed qualified, provided they meet the baseline requirements of Section 174 and are not otherwise statutorily excluded. The process of experimentation must be an evaluative endeavor designed to assess one or more alternatives to achieve a result where the capability, method, or appropriate design is uncertain as of the beginning of the research activities. A taxpayer may undertake a process of experimentation even if there is no uncertainty regarding their fundamental capability or method of achieving the desired result, so long as the appropriate design of the end product remains uncertain at the outset of the research activities.

The Shrinking-Back Rule and Business Component Granularity

The process of experimentation requirement is applied separately to each individual business component. However, if the overall product or process fails the substantially all test, the IRS regulations deploy the "shrinking-back" rule. Under this vital doctrine, the evaluative framework shrinks back to the next largest subset of the business component until a sub-component is identified that independently satisfies all elements of the four-part test, including the stringent 80 percent threshold.

If all activities relating to the entire product constitute a process of experimentation, the entire development cost of the product is creditable. Conversely, if the research and experimentation activities are undertaken to produce substantial technological improvements only with respect to a highly specific component part, and the taxpayer incurs more than an insignificant amount of costs for non-research activities on the rest of the product, the credit shrinks back to encompass only the QREs associated with the improved subsystem. Tax advisory institutions, including Grant Thornton, consistently advise that strategic definition of the business component and aggressive application of the shrinking-back rule are paramount for maintaining high numerators in the substantially all fraction.

The Evolution of IRC Section 174 and the Definition of Pilot Models

The interplay between IRC Section 41 and IRC Section 174 is central to the legal theory deployed by Intermountain Electronics and virtually all heavy manufacturers claiming the credit. Concurrently, Section 174 dictates the specific financial accounting and tax treatment of research and experimental (R&E) expenditures. Historically, Section 174 allowed taxpayers to immediately deduct these expenses in the year they were incurred. However, the Tax Cuts and Jobs Act (TCJA) amended Section 174, requiring that R&E costs paid or incurred in tax years beginning in 2022 and later be charged to a capital account and amortized ratably over a period of not less than five years (or 15 years for foreign research). To facilitate this massive shift in tax accounting, the IRS issued Revenue Procedure 2024-23, providing automatic consent for taxpayers to change their accounting methods to comply with the new capitalization rules, regardless of whether they made previous changes in 2022 or 2023.

While the tax years at issue in the Intermountain Electronics litigation (2012 through 2015) predated these capitalization mandates and thus allowed for immediate expensing, Section 174 remains highly relevant because it provides the definitional framework for "pilot models". Under Treasury Regulation Section 1.174-2(a)(4), a pilot model is explicitly defined as "any representation or model of a product that is produced to evaluate and resolve uncertainty concerning the product during the development or improvement of the product." The regulation crucially adds that the term "includes a fully functional representation or model of the product".

This definition creates an inherent, structural tension between taxpayers and revenue agents. Heavy manufacturers, fabricators, and custom engineers rarely test their hypotheses on abstract, non-functional, or scaled-down prototypes. The required evaluative testing must occur on a full-scale, fully functional asset that, upon successful validation, may ultimately be sold to a commercial customer. The physical fabrication of such a pilot model strictly necessitates the deployment of production employees—welders, pipefitters, electricians, and heavy assembly technicians. The legal controversy arises when determining whether the wages paid to these production employees, who are actively building the functional representation utilized for scientific testing, constitute elements of a "process of experimentation" under Section 41, or whether their labor is merely routine manufacturing categorized as ineligible support.

Part II: The Procedural Antecedents—Refund Claims and the Specificity Doctrine

The Intermountain Electronics litigation encompasses multiple layers of procedural complexity that preceded the substantive debate over the process of experimentation. Before reaching the 2024 summary judgment dispute in the Tax Court, the taxpayer was embroiled in a prolonged jurisdictional and procedural battle in the federal district court regarding the fundamental validity of its refund claims.

Corporate taxpayers frequently claim the research credit via an amended tax return after conducting retroactive R&D studies that identify previously unclaimed QREs. To manage a massive influx of such refund claims, the IRS released Chief Counsel Memorandum (CCM) FAA 20214101F in October 2021, announcing new, highly burdensome specificity requirements for valid research credit claims.

The Five Specificity Requirements

The 2021 memorandum, anchored in the specificity requirements of Treasury Regulation Section 301.6402-2, mandated that taxpayers must set forth in detail each ground upon which a credit is claimed and provide facts sufficient to apprise the IRS of the exact basis for the refund. The IRS declared that a valid refund claim must explicitly identify five distinct items:

• All business components to which the research credit claim relates for that specific year.
• All research activities performed for each business component.
• The names of all individuals who performed each research activity.
• All specific information each individual sought to discover.
• The total qualified employee wages, qualified supply expenses, and qualified contract research expenses.

The IRS announced that these requirements would apply to all research credit refund claims postmarked on or after January 10, 2022. The agency established an administrative transition period, during which the IRS would issue a letter for claims deemed deficient, allowing taxpayers 45 days to "perfect" or correct their claims. This transition period has since been extended to claims filed through January 10, 2026, providing critical relief to taxpayers concerned about the statute of limitations for refund claims.

Notably, according to KPMG's analysis of recent developments in R&D audits, the IRS recently modified these requirements. On June 18, 2024, the IRS added question 21 to its list of Section 41 frequently asked questions, announcing it would waive two of the five requirements found in FAA 20214101F: the names of the individuals who performed the research, and the specific information each individual sought to discover. This waiver applies to claims postmarked June 18, 2024, and onward, though the IRS retains the right to request this granular information during an active audit.

The Waiver Doctrine and the 2021 District Court Litigation

Prior to the issuance of the 2021 memorandum, the IRS attempted to defeat Intermountain Electronics' refund claims on these very procedural grounds. Intermountain had filed amended tax returns that included Form 6765, Credit for Increasing Research Activities, providing the amounts of qualified research expenses and the calculations of the refund amount. The IRS selected the claim for examination and audited the company for a period of five years before ultimately denying the claim on its substantive merits. When Intermountain filed a complaint in federal court alleging the IRS erroneously disallowed the claim, the government moved to dismiss, arguing that the original amended return lacked the requisite factual specificity.

In Intermountain Electronics, Inc. v. United States (Fed. Dist. Ct. Utah, July 16, 2021), decided just one day after a virtually identical case involving Premier Tech, Inc., the federal district court ruled firmly in the taxpayer's favor. The court finessed the specificity issue by applying the "waiver doctrine." The court held that because the IRS had issued numerous Information Document Requests (IDRs) during a five-year audit and exhaustively examined the substance of the claim, the agency had effectively waived its right to challenge any initial procedural defect in the filing of the claim. The court concluded that the IRS was clearly on notice of the nature of the claim and unmistakably took action on it without initially requiring the taxpayer to perfect the filing.

Having survived the procedural motion to dismiss, the litigation advanced toward a trial on the substantive merits, setting the stage for the highly anticipated 2024 Tax Court order regarding the process of experimentation.

Ongoing Compliance: The Evolution of Form 6765

The administrative friction surrounding specificity has also driven sweeping changes to IRS Form 6765. In an effort to capture the data demanded by the 2021 memorandum at the time of filing, the IRS introduced new mandatory sections for the 2024 and 2025 tax years.

• Section E: Mandatory for the 2024 tax year, requesting information on business components, officers' wages claimed as QREs, and new QRE sources, alongside check-the-box questions concerning ASC 730 reporting.
• Section F: Breaks down QREs by specific type, aligning with initial IRS proposals.
• Section G: Optional for 2024 but mandatory for 2025, this section requests highly detailed information by business component. To reduce reporting burdens, the IRS streamlined the requirement, mandating that taxpayers report 80 percent of total QREs in descending order by business component, capped at a maximum of 50 components.

Part III: The Factual Matrix and Summary Judgment Motion in Intermountain Electronics

Intermountain Electronics Inc. is a corporate taxpayer operating in the complex industrial manufacturing sector. The company specializes in the design, engineering, manufacture, and ongoing servicing of bespoke electrical distribution and control equipment. The company’s sophisticated product portfolio includes specialized controls, switchgears, electrical houses (e-houses), transformers, and other highly specialized electrical components designed to operate in extreme, demanding, or hazardous environments, such as underground and surface mining operations, large-scale power generation facilities, oil and gas refineries, and customized installations for federal and state governments.

The development lifecycle for Intermountain's bespoke products involves a highly iterative, multi-stage trajectory. It begins with intensive initial engineering design and progresses through in-house part manufacturing, physical assembly, and rigorous final product testing, culminating only upon obtaining final customer approval following successful capability validation. Because each unit is custom-engineered to address unique spatial constraints, harsh environmental variables, and extreme electrical load-bearing requirements, the company maintained that substantial technological uncertainty existed at the outset of each project regarding the appropriate design of the final equipment.

For the tax years spanning 2012 through 2015, Intermountain claimed R&D tax credits under Section 41 for the expenses associated with the iterative development and manufacturing of these custom products. The company’s R&D methodology classified its initial, first-in-class custom products as "pilot models" under the Section 174 definition. Consequently, Intermountain computed its QREs by capturing the wages of both non-production staff (e.g., design engineers, project managers, systems architects) and production staff (e.g., fabricators, welders, assemblers, field technicians), alongside the cost of associated supplies utilized directly in the construction of the pilot models.

The IRS Motion for Summary Judgment: The Argument for Categorical Exclusion

In preparation for trial in the Tax Court, the IRS filed a motion for partial summary judgment, asking the court to rule as a matter of law that Intermountain was ineligible for the Section 41 research credit. A motion for summary judgment is a procedural device that may only be granted if the moving party can definitively demonstrate that there is no genuine dispute as to any material fact, and that the movant is entitled to judgment as a matter of law.

The IRS constructed its aggressive summary judgment argument on two alternative legal theories:

• Intermountain’s pilot models mathematically failed to satisfy the "substantially all" test for the process of experimentation under Section 41(d).
• Alternatively, Intermountain improperly and inappropriately treated production expenses as Section 174 experimental expenditures.

The core of the IRS’s attack relied on a rigid, highly mathematical interpretation of the 80 percent "substantially all" fraction. The IRS did not necessarily dispute the dollar value of the wages paid to the production workers; rather, it challenged their legal placement within the statutory fraction. The Commissioner argued that production expenses—the wages paid to the fabricators constructing the switchgears and e-houses—are categorically excluded from the numerator of the equation as a matter of law.

The mathematical implications of this IRS argument are inherently devastating to heavy manufacturers. If production costs are barred from the numerator (meaning they are not legally recognized as elements of a process of experimentation) but remain in the denominator (representing the total research activities), the fraction is drastically diluted. The IRS demonstrated that because the proportion of Intermountain's non-production costs (e.g., engineering and architectural wages) to all other research costs (the denominator) did not mathematically exceed 80 percent of the total expenses paid, the taxpayer would automatically fail the statutory test, regardless of the qualitative, empirical nature of the activities.

To anchor this assertion in established precedent, the IRS relied heavily on the Tax Court's prior memorandum decision in Little Sandy Coal Co. v. Commissioner (T.C. Memo. 2021-15).

Part IV: The Jurisprudential Pivot—Deconstructing Little Sandy Coal

The trajectory and significance of the Intermountain Electronics order cannot be fully comprehended without a detailed structural analysis of the Little Sandy Coal litigation, which serves as the jurisprudential fulcrum for the modern treatment of pilot model production costs.

In Little Sandy Coal Co., the taxpayer constructed a massive apex marine vessel—specifically, a dry dock—and treated it for tax purposes as a pilot model. The taxpayer claimed the research credit, arguing that the vessel’s novel design required extensive testing to ensure structural integrity and proper buoyancy. Thus, the taxpayer argued, the wages paid to the shipbuilders and welders who physically constructed the vessel should be included in the process of experimentation fraction, as their labor was necessary to create the model upon which the hypotheses were tested.

In its 2021 memorandum decision, the Tax Court ruled firmly in favor of the IRS and disallowed the research credits. The Tax Court provided two primary reasons for its holding: first, the taxpayer failed to provide sufficient documentary evidence linking the physical labor of the production workers to the scientific resolution of design uncertainties; and second, the production costs were explicitly excluded from the numerator of the "substantially all" fraction.

The Tax Court’s reasoning in 2021 appeared to hinge dangerously on the distinction between "direct research" and "direct support" under Section 41(b). The court suggested that while constructing the marine vessel might constitute an activity that directly supported the research (thus making it a QRE if the 80% threshold were otherwise met by other activities), the physical fabrication lacked a sufficient nexus to the actual testing of the vessel itself. Without this direct testing nexus, the wages could not be deemed active elements of an experimentation process. This led practitioners and the IRS alike to interpret the ruling as a categorical legal bar against placing direct support production activities in the numerator.

The Seventh Circuit Intervention and Reversal of Rationale

Unwilling to accept the evisceration of its credit claims, the taxpayer appealed the Tax Court's decision, elevating the case to the United States Court of Appeals for the Seventh Circuit (Little Sandy Coal Co. v. Commissioner, 62 F.4th 287 (7th Cir. 2023)). The appellate review resulted in a highly nuanced outcome that fundamentally shifted the legal landscape for the manufacturing sector.

Ultimately, the Seventh Circuit upheld the Tax Court's final conclusion to disallow the credit. The appellate court affirmed that the taxpayer had wholly failed to substantiate, through contemporaneous documentation, that the activities conducted by the production employees actually constituted elements of a process of experimentation. The taxpayer simply did not possess the empirical, project-based records required to prove its case, serving as a critical warning regarding substantiation standards.

However, the Seventh Circuit strongly and explicitly disagreed with what appeared to be the Tax Court’s underlying legal rationale regarding the categorical exclusion of production costs. The appellate court rejected the notion that activities constituting "direct support" or "direct supervision" of research are inherently barred from the numerator of the 80 percent fraction. The Seventh Circuit ruled that because a pilot model is statutorily defined under Section 174 as a product produced specifically to evaluate and resolve uncertainty, the physical construction of that model is intrinsically and legally tied to the experimental process. Therefore, the Seventh Circuit described the 80% equation as accommodating research activities—whether direct research, direct supervision, or direct support—that constitute elements of experimentation. Consequently, production activities may legally constitute a process of experimentation and can be included in both the numerator and the denominator, provided the taxpayer furnishes sufficient empirical proof.

Part V: The Tax Court’s 2024 Order in Intermountain Electronics

It was against this complex, multi-jurisdictional backdrop that the Tax Court evaluated the IRS's motion for summary judgment in Intermountain Electronics. In its order dated March 14, 2024, the Tax Court denied the Commissioner's motion, delivering a substantial procedural and theoretical victory to the taxpayer.

The Tax Court directly addressed the IRS’s reliance on the 2021 Little Sandy Coal memorandum decision. The IRS argued that Little Sandy established a binding legal precedent categorically excluding production expenses from the numerator. The Tax Court, interpreting its own prior ruling, explicitly rejected the IRS’s narrow and highly restrictive reading.

The court clarified that the precedent established in Little Sandy Coal was based purely on a failure of factual proof, not a rigid conclusion of law. In the earlier case, the taxpayer had simply failed to establish a factual nexus between the shipbuilding activities and the evaluative testing process. The Tax Court stated unequivocally that its prior decision "does not foreclose production expenses from being included in the numerator of the substantially all equation".

Furthermore, the Tax Court emphasized that, "Nothing in that statement [from Little Sandy Coal] forecloses a finding that a production worker is directly engaged in qualified research".

Intermountain maintained that its production processes were not rote manufacturing, but rather integral components of an evaluative process utilized to address specific, identified uncertainties relating to the thermal, electrical, and physical load capabilities of its custom equipment. Because production costs are not categorically excluded from the numerator as a matter of law, the classification of these costs reverts to a question of fact. The Tax Court concluded that genuine disputes of material fact remain regarding whether Intermountain’s specific production activities actually constituted a process of experimentation. Thus, summary judgment was inappropriate, and the case must proceed to a trial on the substantive merits.

Analytical Implications and Tax Advisory Commentary

The Tax Court's order in Intermountain Electronics is highly consequential, drawing intense scrutiny from major tax advisory institutions.

Grant Thornton's Perspective: Analysts at Grant Thornton highlight that the Tax Court's interpretation of its own Little Sandy decision is highly "unexpected" and indicates a significant theoretical pivot. Grant Thornton observes that the Tax Court appears to be leaning toward a more taxpayer-friendly interpretation of the "substantially all" test, one that seamlessly aligns with the appellate ruling of the Seventh Circuit. By recognizing that production activities can mathematically support the fraction, the court has preserved the viability of the credit for heavy manufacturers. Remarkably, Grant Thornton notes that the Tax Court reached this alignment without explicitly citing or relying upon the Seventh Circuit's appellate decision in its order, choosing instead to clarify its original intent. However, Grant Thornton warns that despite this procedural win, the IRS remains highly aggressive in challenging claims based on the experimentation test.

Ernst & Young's (EY) Perspective: EY provides a more cautious structural analysis, focusing on a subtle but vital linguistic nuance in the court's order. EY observes that the Tax Court specifically stated that a production worker can be "directly engaged in qualified research". EY theorizes that by using this specific terminology, the Tax Court may still attempt to limit the numerator exclusively to "direct research" activities, rather than broadening it to explicitly include "direct support" activities as the Seventh Circuit permitted. This distinction—whether a production worker is performing direct research (e.g., actively fabricating a novel, uncertain component during a live scientific test) versus direct support (e.g., standard, rote welding on the non-experimental chassis holding the experimental component)—will likely form the primary evidentiary battleground during the impending trial.

Part VI: The Broader R&D Controversy Landscape—Discovery, Engineering, and Funded Research

The Intermountain Electronics order does not exist in a vacuum; it is part of a broader judicial trend in which the Tax Court is systematically refining the evidentiary, definitional, and procedural boundaries of the research credit. A comparative analysis of contemporary dockets illustrates the multi-front nature of modern R&D tax controversy.

Phoenix Design Group and the Bounds of Engineering

In Phoenix Design Group, Inc. v. Commissioner, No. 4759-22, the Tax Court addressed the application of the research credit to a multidisciplinary engineering and consulting firm specializing in mechanical, electrical, plumbing, and fire protection systems for medical laboratories and research facilities. The taxpayer initially claimed credits for over 200 projects between 2013 and 2016, eventually narrowing the focus to a nonbinding three-project sample for trial.

The core substantive issue was whether the firm's design process involved genuine technical uncertainty and a structured process of experimentation, or whether the engineers were merely applying standard engineering practices and professional judgment. For example, one of the primary decisions Phoenix Design engineers faced was whether to install a constant air volume system or a variable air volume system in a facility. The Tax Court ruled firmly against the taxpayer, holding that standard mechanical design choices do not constitute a process of experimentation. The court noted that simply encountering typical engineering challenges and utilizing professional experience to solve them does not meet the legal threshold for qualified research unless accompanied by a systematic, evaluative testing mechanism designed to resolve fundamental capability or design uncertainties. As a result, the court not only denied the credits but upheld accuracy-related penalties against the firm.

The Phoenix Design Group litigation also highlighted severe risks regarding statistical sampling and discovery protocols. During pre-trial maneuvering, the taxpayer attempted to secure a protective order to limit the IRS's discovery to a small subset of projects (3 to 6 out of 238). The Tax Court denied the motion, noting that the taxpayer bears the ultimate burden of demonstrating entitlement to the credits, and that restricting discovery without prior mutual agreement on a representative statistical sample prevents the IRS from adequately evaluating compliance. This underscores the critical importance of robust, project-by-project substantiation.

Furthermore, commentary from Miller Canfield regarding Phoenix Design notes a deeper statutory debate involving the legacy case Mayrath v. Commissioner. The IRS relied on Mayrath to argue that research must be of an "investigative nature" to develop a "concept". However, modern Treasury regulations (Section 1.174-2(a)) merely require activities intended to "discover information that would eliminate uncertainty". The tension between the IRS's reliance on older, more restrictive case law and the plainer language of the current regulations continues to complicate the evidentiary landscape for engineering firms.

System Technologies and the Funded Research Exclusion

Parallel to the process of experimentation disputes are controversies surrounding the "funded research" exclusion under IRC Section 41(d)(4)(H). In System Technologies, Inc. v. Commissioner, No. 12211-21, the Tax Court evaluated a taxpayer based in Indianapolis that engineered and manufactured advanced industrial finishing systems, such as robotic paint applications and ultraviolet curing systems, primarily for the automotive industry.

Treasury Regulation Section 1.41-4A(d)(1) dictates that research is considered "funded"—and therefore entirely ineligible for the credit—if payment to the taxpayer is not contingent on the success of the research, or if the taxpayer does not retain substantial rights in the results of the research. System Technologies based its 2016 credits on six specific finishing systems (e.g., the Mercury project, the Tomita project, the Finishline project, and the Wilhelm project). The IRS filed a motion for partial summary judgment, arguing that because the purchase agreements required milestone payments as the projects were underway, the research was fundamentally funded by the clients.

However, the Tax Court denied the IRS motion, carefully analyzing the purchase agreements and their choice of law provisions. The court determined that under the controlling laws of the State of Indiana, System Technologies would be legally required to refund the progress payments to the customer if it failed to deliver a functional, successful product. Because the taxpayer bore the ultimate financial risk of failure, the ultimate payment remained contingent on the success of the research, defeating the IRS's funded research argument. System Technologies reinforces the vital principle that fixed-price contracts utilizing milestone billing can still support R&D credits, provided the underlying state contract law enforces strict performance guarantees and refund obligations. In a related procedural matter, the IRS filed motions to compel interrogatories, demanding that System Technologies explicitly document the initial hypothesis, the testing utilized, and the data collected for every single project, further highlighting the IRS's intense focus on the process of experimentation documentation.

Part VII: Strategic Implications and Future Outlook for Corporate Tax Planning

The ruling in Intermountain Electronics offers a genuine "silver lining" for corporate taxpayers engaged in physical manufacturing, but it simultaneously imposes an intense, uncompromising evidentiary burden. By establishing that the inclusion of production costs in the numerator is a question of fact rather than an impossibility of law, the Tax Court has definitively shifted the battlefield from theoretical legal doctrine to contemporaneous documentation. The synthesis of these contemporary cases mandates several critical strategic realignments for corporate tax departments.

The Imperative of Contemporaneous Substantiation

As evidenced by the ultimate appellate failure in Little Sandy Coal and the penalty-inducing loss in Phoenix Design Group, theoretical legal victories are hollow without empirical, contemporaneous proof. Taxpayers asserting that production workers are engaged in a process of experimentation must rigorously document the iterative nature of the fabrication process. This requires bridging the historical communication gap between the engineering design departments and the manufacturing shop floor.

When a welder or assembler encounters an unworkable design schematic on the shop floor, the subsequent modifications cannot simply be resolved via undocumented, ad-hoc ingenuity. Taxpayers must structurally record the specific design failure (the hypothesis), the proposed manufacturing alternative, the fabrication of that alternative (the testing), and the subsequent quality assurance validation (the data collection). The IRS’s interrogatories in System Technologies—which aggressively demanded documentation of the initial hypothesis, the specific testing utilized, and the data collected—provide a clear, unyielding blueprint of the evidentiary standard the government expects during discovery. Documentation must isolate exactly what each production employee was doing to resolve technical challenges, moving far beyond vague job descriptions, high-level project summaries, or generalized time-tracking.

Defining the Business Component and the Shrinking-Back Doctrine

The Intermountain analysis indicates that taxpayers must be highly strategic in how they define the "business component" under Section 41(d)(2)(B). Claiming an entire e-house, switchgear assembly, or marine vessel as a single business component massively increases the denominator of the "substantially all" fraction, requiring the taxpayer to prove that 80 percent of the total costs for the entire asset were dedicated to active experimentation. If large portions of the product utilize standard, pre-existing technology or require routine fabrication, the fraction will inevitably fall below the 80 percent threshold.

Taxpayers should proactively and defensively deploy the shrinking-back rule during their R&D study calculations. By defining the business component narrowly—for example, isolating the novel thermal cooling system within the switchgear rather than analyzing the entire switchgear unit itself—the taxpayer significantly reduces the denominator. This ensures that the costs associated strictly with the experimental sub-component easily satisfy the 80 percent threshold, maximizing the defensibility of the credit under intense IRS mathematical scrutiny.

Aligning Section 174 Accounting with Section 41 Claims

Finally, the TCJA’s mandate to capitalize and amortize Section 174 expenses introduces an inescapable layer of complexity to pilot model claims. Taxpayers can no longer treat R&D aggressively for Section 41 credit purposes while simultaneously treating those same costs as standard cost of goods sold (COGS) or ordinary business deductions to avoid the Section 174 amortization schedule. The IRS will inherently and algorithmically cross-reference the Section 41 qualified research expenses against the capitalized Section 174 costs. Tax departments must ensure absolute harmony between their R&D credit models and their broader financial accounting methodologies, recognizing that claiming production costs as elements of a process of experimentation for the credit legally requires subjecting those same costs to the five-year amortization schedule.

Conclusion

The Tax Court’s 2024 order in Intermountain Electronics Inc. v. Commissioner represents a pivotal, stabilizing moment in the trajectory of the federal research and development tax credit. By definitively rejecting the IRS’s assertion that production expenses are categorically excluded from the numerator of the process of experimentation fraction, the court dismantled a highly restrictive administrative theory that fundamentally threatened the financial viability of the R&D credit for the American manufacturing sector. The harmonization of the Tax Court's rationale with the Seventh Circuit's appellate logic in Little Sandy Coal provides a more equitable, taxpayer-friendly legal framework for the treatment of functional pilot models.

However, this doctrinal victory merely serves to grant taxpayers entry into the rigorous arena of factual adjudication. The overarching lesson drawn from the comprehensive synthesis of Intermountain, Little Sandy Coal, Phoenix Design Group, and System Technologies is that the IRS will relentlessly probe the qualitative nature of the activities claimed. Standard fabrication, routine engineering decisions, and undocumented trial-and-error methodologies will not survive modern judicial scrutiny. Corporate taxpayers seeking to leverage the Section 41 credit must implement sophisticated, contemporaneous tracking mechanisms capable of proving that their production personnel are not merely building a product, but are actively engaged in the systematic, scientific elimination of technical uncertainty. As Intermountain Electronics proceeds toward a highly anticipated trial on the merits, it will undoubtedly serve as the premier case study defining the exacting evidentiary thresholds required to sustain pilot model claims in the contemporary era of tax controversy.