Process of Experimentation

The Process of Experimentation is a systematic evaluative methodology requiring the identification and testing of alternative solutions to resolve technical uncertainties in the development of a business component. It mandates that substantially all activities must rely on the principles of the hard sciences to achieve improved functionality, performance, or quality.

The broader analytical meaning of the Process of Experimentation (PoE) in the context of the Oregon Research and Development (R&D) tax credit resides in its function as a qualitative and quantitative filter that separates routine engineering from genuine innovation. While the foundational requirements for the credit are codified under Internal Revenue Code (IRC) Section 41 and adopted by the Oregon Revised Statutes (ORS), the PoE remains the most scrutinized element during both the certification process and subsequent state revenue audits. This requirement demands a departure from linear design processes, mandating instead a structured, hypothesis-driven cycle that mirrors the scientific method. In the Oregon regulatory environment, particularly under the modernized semiconductor-specific incentives, the PoE represents a rigorous hurdle that taxpayers must overcome by providing contemporaneous evidence of iterative testing, modeling, and the systematic evaluation of alternatives.

Statutory Foundations and the Evolution of Oregon R&D Incentives

The landscape of Oregon’s R&D tax incentives has undergone a significant transformation, evolving from a broad-based corporate benefit to a highly targeted program designed to bolster the state’s position as a global leader in advanced manufacturing and semiconductor technology. To fully grasp the application of the Process of Experimentation, one must examine the statutory history and the state’s specific adoption of federal standards.

Historical Perspective: ORS 317.152 and 317.154

From 1989 until its expiration at the end of 2017, Oregon offered two primary corporate tax credits for qualified research activities. These credits, codified under ORS 317.152 and ORS 317.154, were designed to promote a level of research activity in the state higher than what would exist without such incentives. During this era, the PoE was established as a core requirement through Oregon’s direct tie to the federal definition of qualified research under IRC § 41(d).

The historical credits were structured to reward incremental increases in research spending. ORS 317.152 provided a credit equal to 5% of excess qualified research expenses (QREs) over a base amount, while ORS 317.154 offered an alternative calculation for companies whose research expenses exceeded 10% of their Oregon sales. Even though these general credits sunset on January 1, 2018, the legal definitions and administrative rules established during this period—such as the requirement that research must be conducted in Oregon—continue to inform the state’s interpretation of the PoE for ongoing litigation and new programs.

The Modern Framework: House Bill 2009 and the Semiconductor Credit

In response to global shifts in the semiconductor industry and federal initiatives like the CHIPS Act, the Oregon Legislative Assembly introduced House Bill 2009 (HB 2009) in 2023. This landmark legislation established the Research and Development Tax Credit for Semiconductors, codified in ORS 315.518, effective for tax years beginning on or after January 1, 2024.

The new credit is significantly more potent and targeted than its predecessors. It focuses exclusively on qualified semiconductor companies and their research conducted within Oregon. Crucially, the statute reaffirms Oregon’s reliance on IRC § 41, stating that the credit shall be determined in accordance with the federal code, except for specific state modifications. This means the federal Four-Part Test, including the PoE, remains the primary gatekeeper for credit eligibility in Oregon.

Statutory Element	Historical Credit (ORS 317.152)	Semiconductor Credit (ORS 315.518)
Credit Rate	5% of excess QREs	15% of excess QREs
Annual Cap	$1 million per taxpayer	$4 million per taxpayer
Refundability	Non-refundable; 3-year carryforward	Partially refundable based on headcount
PoE Basis	IRC § 41(d) standards	IRC § 41(d) standards
Sunset Date	December 31, 2017	December 31, 2029

The Meaning of Process of Experimentation within the Four-Part Test

To satisfy the Oregon R&D credit requirements, a research project must meet four distinct criteria. The PoE is the final and often most technical component of this test. Understanding how the PoE interacts with the other three tests is essential for local compliance and audit defense.

The Interdependency of the Tests

The first requirement is the Permitted Purpose test, which mandates that the research be conducted to improve the functionality, performance, reliability, or quality of a business component. The second requirement is the Technical Uncertainty test under Section 174, which requires the taxpayer to show that, at the outset of the project, they did not know the capability, the method, or the appropriate design for achieving the desired result.

The third test requires the research to be Technological in Nature, meaning it must fundamentally rely on the principles of the hard sciences—physics, biology, chemistry, engineering, or computer science. The PoE then acts as the mechanism through which the technological uncertainty is resolved for a permitted purpose. Without a PoE, the research is deemed routine; without technological nature, the experimentation is deemed non-qualified (such as marketing research); and without uncertainty, there is nothing to experiment upon.

Defining the Process in Experimentation

The PoE is defined as a process designed to evaluate one or more alternatives to achieve a result where the capability or the method of achieving that result, or the appropriate design of that result, is uncertain as of the beginning of the research activities. The use of the word process implies a structured approach. It is not sufficient to simply try things until one works. Instead, the taxpayer must demonstrate a systematic evaluative methodology.

This systematic approach generally involves the following iterative cycle:

1. Hypothesis Formation: Identifying a potential solution or design to address the technical uncertainty.
2. Evaluating Alternatives: Considering multiple designs, materials, or methods to determine which is most viable.
3. Testing and Simulation: Utilizing modeling, computer-aided design (CAD), simulation, or physical trial and error to gather data.
4. Analysis and Iteration: Reviewing the results of the tests to refine the hypothesis and initiating further rounds of experimentation if necessary.

The judicial consensus, as seen in cases like Little Sandy Coal Co. and Phoenix Design Group, is that a linear design process—where an engineer moves directly from requirements to a final product using known data—does not constitute a PoE. The process must be iterative and aimed at discovering information that was not previously available to the taxpayer.

Local State Revenue Office Guidance and Administrative Application

The Oregon Department of Revenue (DOR) and the Oregon Business Development Department (Business Oregon) provide the administrative framework for applying these laws. While Oregon follows federal standards for the definition of qualified research, the state has implemented unique procedural requirements, particularly for the modern semiconductor credit.

Business Oregon Certification and the Registration Requirement

Unlike the federal R&D credit, which is self-certified on Form 6765, the Oregon semiconductor credit requires a formal certification process. Taxpayers must apply annually to Business Oregon for certification as a qualified semiconductor company.

For the 2024 tax year, a one-time registration form was required by December 1, 2023. For all subsequent years through 2029, the deadline for annual certification is October 15 of the calendar year in which the tax year begins. The application for certification must include:

• A detailed description of how the proposed R&D activities support a business or trade directly related to semiconductors.
• An attestation that the activities meet the federal IRC § 41 criteria, specifically addressing the PoE and the resolution of technical uncertainty.
• Reports of QREs from the three preceding tax years and projections for the current year.

Failure to obtain this certification precludes a taxpayer from claiming the credit on their Oregon tax return, regardless of the technical merits of their research.

Oregon Administrative Rules (OAR) and the Department of Revenue

The Oregon DOR manages the tax reporting and auditing of the credit through several specific administrative rules. OAR 150-315-0195 provides the primary guidance for the semiconductor research credit, detailing how to calculate the credit and which federal methods are permissible.

Key administrative guidelines include:

• Election of Calculation Method: OAR 150-317-0290 states that the election to compute the credit under ORS 317.152 (or the modern semiconductor equivalent) must be made on the original return. While this can be changed on an amended return, it is subject to the strict limitations of ORS 314.410 and 314.415.
• Alternative Simplified Credit (ASC): OAR 150-315-0195(2) allows taxpayers to elect the federal ASC method under IRC § 41(c)(4) for Oregon purposes. If elected, the taxpayer must use the percentages specified in the federal code—typically 14% of the excess QREs over 50% of the three-year average—rather than the standard Oregon 15% rate.
• Oregon-Only QREs: OAR 150-315-0195(6) clarifies that qualified research expenses for Oregon purposes are limited to in-house research and contract research expenses for research actually conducted within Oregon.
• Pass-Through Treatment: For S-corporations and partnerships, the credit is allocated to owners on a pro-rata basis.

The Substantially All Rule and its Oregon Implications

Under IRC § 41(d)(3) and Treasury Regulation § 1.41-4(a)(6), which are adopted by Oregon, a project qualifies only if substantially all of the research activities constitute elements of a PoE. The term substantially all is defined as 80% or more, measured on a cost or other consistently applied reasonable basis, such as time spent.

This 80% threshold is a significant audit risk. If a project involves significant routine activity—such as debugging, style changes, or routine quality control—that exceeds 20% of the total effort, the entire project may be disqualified. However, if the 80% threshold is met, the remaining 20% of non-experimental activities can still be included in the QRE calculation.

In the event that a broad project fails the 80% test, taxpayers may utilize the shrinking-back rule. This allows the taxpayer to apply the Four-Part Test to a more discreet subcomponent of the business component. For example, if the development of an entire semiconductor manufacturing machine does not meet the 80% PoE threshold, the taxpayer may shrink back to experimentations conducted on a specific new lithography lens within that machine.

Deep Dive into the Systematic Evaluative Methodology

The Process of Experimentation is fundamentally distinct from the general concept of research and development. In a tax context, it is a narrow, technical definition that excludes many activities commonly labeled as innovation.

Iterative, Hypothesis-Driven Testing

A valid PoE must be hypothesis-driven. This means the research begins with a technical theory or a proposed solution to a specific uncertainty. If an engineering firm simply adapts an old design to a new client’s specifications without testing new theories, it fails the PoE test. As highlighted in Phoenix Design Group, routine calculations on available data do not constitute experimentation because the necessary information was effectively already known through the application of standard engineering principles.

To satisfy the Oregon DOR, the PoE should look like one of the following classic models:

• Iterative Experimentation: Revisions based on theoretical results, often using CAD or computer modeling to predict behaviors before physical fabrication.
• Trial-and-Error Experimentation: Revisions based on empirical results from testing physical prototypes or pilot models.
• Scientific Method: A formal process of observation, hypothesis formation, experimentation, data analysis, and conclusion drawing.

The Role of Modeling and Simulation

In modern high-tech industries, physical trial and error is often preceded or replaced by sophisticated digital modeling. Oregon guidance, following federal regulations like T.D. 9786, explicitly recognizes that modeling and simulation are valid elements of a PoE, provided they are used to evaluate alternatives and resolve uncertainty. For a semiconductor company, this might involve using thermal simulation software to determine the optimal placement of transistors to prevent overheating—a process that is systematic, relies on the principles of physics and computer science, and evaluates multiple architectural alternatives.

Direct Supervision and Support Activities

A critical insight from the 2023 Little Sandy Coal Co. appeal is that the PoE is not limited to the individual holding the pipette or writing the code. Activities that constitute the PoE include:

• Direct Conduct: The actual performance of the experiments or the creation of the alternative designs.
• Direct Supervision: The immediate oversight of the research process, such as a lab manager who reviews experimental results and directs the next set of tests.
• Direct Support: Services that are essential to the conduct or supervision of the research. Examples include a machinist who fabricates a one-of-a-kind part for a test rig, or a clerk who compiles data from different experimental trials into a master research report.

Category	Examples of Qualified Activities (PoE)	Examples of Non-Qualified Activities
Direct Conduct	Designing a new chip architecture; testing a prototype wafer.	Routine quality control; debugging after commercial release.
Direct Supervision	A lead engineer reviewing test results to select a final design.	Administrative HR management; general project budgeting.
Direct Support	Fabricating specialized tools for a lab experiment.	General janitorial services; preparing marketing materials.

Documentation and Audit Defense: The Burden of Proof

The single greatest challenge for Oregon taxpayers claiming the R&D credit is substantiation. Under ORS 315.061 and standard DOR audit practices, the burden of proof rests entirely on the taxpayer to provide evidence that a Process of Experimentation occurred.

Contemporaneous Recordkeeping

The IRS and Oregon DOR have increasingly rejected retrospective studies—reports created years after the research was performed to justify a credit claim. Instead, the authorities demand contemporaneous documentation—records created at the time the research was happening.

A bulletproof R&D file should include:

• Project Narrative: A document clearly stating the technical uncertainties and the permitted purpose at the start of the project.
• Iteration Logs: A record showing the different alternatives evaluated, why they were chosen, and what the results of the tests were.
• Lab Notes and Meeting Minutes: Contemporaneous notes from researchers discussing the technical challenges and experimental failures.
• Personnel Time Records: Documentation (such as timesheets or project logs) linking employee wages specifically to qualifying R&D activities rather than general work.
• Photographs and Prototypes: Visual evidence of the physical objects used in the experimentation process.

The Patent Safe Harbor Provision

IRC Section 41 and 26 C.F.R. § 1.41-4(a)(3)(iii) include a Patent Safe Harbor provision, which Oregon follows. This rule states that the issuance of a U.S. patent is conclusive evidence that the taxpayer discovered information that is technological in nature and intended to eliminate uncertainty. However, the taxpayer must still demonstrate that the patent was the result of a valid PoE. Documentation collected during the patent application process—such as technical drawings, descriptions of the prior art, and records of the novel steps taken—can be repurposed to support the R&D tax credit claim.

Example: Semiconductor Fabrication Process Improvement

To clarify the application of the Process of Experimentation in an Oregon context, consider a detailed example of an Oregon semiconductor firm, Willamette Wafer Tech.

The Permitted Purpose and Uncertainty

Willamette Wafer Tech aims to improve its chip fabrication process by reducing the defect rate of its 7nm wafers by 15%. At the start of the project, the engineering team is uncertain whether a new chemical vapor deposition (CVD) technique using an experimental precursor gas will resolve the issue of uneven film thickness. This uncertainty concerns the method and the appropriate design of the fabrication step.

The Systematic Process of Experimentation

The team initiates a PoE in their Oregon-based cleanroom:

1. Phase 1 (Modeling): Engineers use fluid dynamics software to model the flow of the precursor gas over the wafer surface. They identify three potential gas flow rates as alternatives.
2. Phase 2 (Prototyping): The team fabricates 20 test wafers using the first flow rate. Initial tests show that while the film is even, the adhesion is poor.
3. Phase 3 (Iteration): Based on the failure of the first flow rate, the team hypothesizes that adding a plasma-enhanced step will improve adhesion. They modify the equipment and run a second set of tests using the remaining two flow rate alternatives.
4. Phase 4 (Final Analysis): The data from the plasma-enhanced trials is analyzed, leading to a finalized process that achieves the desired 15% reduction in defects.

Oregon Credit Application

Because the research was conducted in Oregon, Willamette Wafer Tech applies to Business Oregon for certification by October 15. They document the project narrative, the modeling reports, the wafer test results, and the wages for the cleanroom technicians (direct conduct) and the lead process engineer (direct supervision). They calculate their credit using the 15% rate on excess QREs provided by ORS 315.518 and claim it on Schedule OR-RESEARCH with their corporate excise tax return (Form OR-20).

Economic and Financial Mechanics of the Oregon Credit

The PoE requirement directly impacts the financial value of the credit. Any expense that cannot be linked to an activity meeting the PoE definition must be excluded from the credit calculation, which in turn reduces the excess QRE amount.

Credit Calculation Formulas

Oregon follows the federal incremental credit calculation methodology, with state-specific rates and caps.

Regular Method Calculation:

The credit is 15% of the current-year Oregon QREs that exceed a base amount. The base amount is calculated by multiplying the taxpayer’s fixed-base percentage (their historical research intensity) by their average Oregon gross receipts for the prior four years.

$$Credit = 0.15 \times$$

Alternative Simplified Credit (ASC) Method:

If a company lacks historical data to calculate a fixed-base percentage, they may elect the ASC method. Under OAR 150-315-0195, the ASC rate is effectively the federal rate of 14%.

$$Credit = 0.14 \times$$

If the taxpayer has no research expenses in the three preceding years, the ASC rate is reduced to 6% of the current-year QREs.

Refundability and Cash Flow Implications

A key distinction for the modern Oregon credit is partial refundability, which is designed to support smaller, pre-revenue, or growing companies that may not have enough tax liability to use a non-refundable credit. This refundability is tiered based on the number of Oregon employees at the close of the tax year.

Oregon Employee Count	Refundable Portion	Non-Refundable Portion
< 150 employees	75%	25% (Carryforward for 5 years)
150 – 499 employees	50%	50% (Carryforward for 5 years)
500 – 2,999 employees	25%	75% (Carryforward for 5 years)
3,000+ employees	0%	100% (Carryforward for 5 years)

This tiered structure ensures that the state’s fiscal exposure is managed while providing significant cash-flow benefits to smaller firms engaging in the systematic Process of Experimentation.

Interaction with IRC Section 174 Capitalization

A significant development in tax law, starting in 2022, is the mandatory capitalization of R&D expenses under IRC Section 174. Previously, companies could deduct R&D costs immediately. Now, these costs must be capitalized and amortized over 5 years (for domestic research) or 15 years (for foreign research).

Oregon generally conforms to Section 174. This requirement increases current taxable income, making the R&D tax credit even more critical as a means to offset the resulting tax burden. However, there is a risk of double exclusion. If an activity does not meet the PoE test for the Section 41 credit, it may still be considered an R&D expense under Section 174, meaning the taxpayer must capitalize the cost but receives no tax credit to offset it. Meticulous documentation of the PoE is therefore required to ensure that expenses are properly classified and that the maximum available credit is claimed to mitigate the impact of capitalization.

Judicial Precedents and Evolving Standards

Federal court cases, which are highly persuasive in Oregon DOR audits, show a clear trend toward requiring more rigorous technical evidence of experimentation.

Little Sandy Coal Co. v. Commissioner (2023)

The Seventh Circuit affirmed that the 80% substantially all test is an activity-based test, not merely a cost-based test. The court ruled that if more than 20% of the activities related to a business component are routine or non-experimental, the entire project fails. This puts a premium on documenting the specific technical challenges encountered during the design of prototypes.

Phoenix Design Group, Inc. v. Commissioner (2024)

In this December 2024 ruling, the Tax Court disallowed R&D credits for several engineering projects because the firm followed a linear design process rather than an iterative one. The court noted that performing routine calculations based on historical data does not constitute a Process of Experimentation, as the results were essentially predictable. The court also upheld a 20% accuracy-related penalty because the taxpayer lacked contemporary, activity-level documentation to support its claims.

Betz v. Commissioner (2023)

The Betz case focused on the pilot model definition within the PoE. The court ruled that production costs for items that are eventually sold to customers can only be included in the PoE if they were built primarily for the purpose of testing a hypothesis and resolving a technical uncertainty.

Practical Strategies for Compliance

To successfully navigate an Oregon R&D tax credit claim, professional practitioners should implement a multi-layered compliance strategy centered on the Process of Experimentation.

1. Identify Business Components Early: Categorize work into specific products, processes, or software modules rather than broad departments or general project titles.
2. Explicitly Define Uncertainties: At the project kickoff, document exactly what the engineers do not know. Is it the capability of the material? The method of fabrication? The appropriate design to meet a performance goal?
3. Implement Iteration Tracking: Use project management software (such as Jira, Azure DevOps, or dedicated lab notebooks) to tag and track experiments, failures, and subsequent revisions.
4. Audit the Substantially All Threshold: Regularly review the time and costs associated with projects to ensure that at least 80% of the effort is dedicated to the systematic PoE. If a project is becoming too routine, use the shrinking-back rule to isolate the truly innovative subcomponents.
5. Engage Cross-Functional Teams: Ensure that engineers (who understand the PoE) are communicating effectively with finance and tax professionals (who understand the calculation and certification requirements).

The Process of Experimentation is not merely a formality; it is the definitive test of scientific and technical rigor in the Oregon tax code. As the state moves toward its 2029 sunset for the semiconductor credit, and as the DOR increases its audit capabilities, the quality of a company’s PoE documentation will be the primary determinant of its tax-advantaged success. By treating the PoE as a disciplined engineering requirement rather than a post-hoc tax calculation, Oregon firms can robustly defend their claims and contribute to the state’s reputation as an engine of genuine technological discovery.