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Answer Capsule:This study analyzes the dual-credit legislative landscape of the United States federal and Iowa state Research and Development (R&D) tax credits through the lens of Des Moines’s unique industrial heritage. It outlines eligibility criteria, case law, and strategic applications across five key sectors: Insurance and Financial Services, Agricultural Technology and Bioscience, Advanced Manufacturing, Data Centers, and Medical Innovation. Key legislative shifts include the upcoming 2026 Senate File 657, which transitions Iowa’s historic Research Activities Credit into a highly competitive, capped $40 million R&D Tax Credit Program requiring strict documentation and independent CPA verification. Federal compliance similarly demands rigorous substantiation to pass the four-part statutory test under Internal Revenue Code Section 41.

The United States federal and Iowa state research and development tax credits offer substantial financial incentives for qualifying innovation, though recent Iowa legislative overhauls and stringent internal revenue service substantiation requirements demand rigorous compliance. This study analyzes the dual-credit legislative landscape through the lens of Des Moines’s unique industrial heritage, detailing eligibility, case law, and strategic application across five key regional sectors.

Industry Case Studies and Application of Tax Jurisprudence

The city of Des Moines serves as the economic epicenter of the State of Iowa. Founded at the confluence of the Des Moines and Raccoon rivers in 1843 as a military fort and incorporated as a municipality in 1851, the city transitioned from a frontier outpost dependent on precarious steamboat navigation to a modern metropolis. This economic evolution was catalyzed by the arrival of the railroads in the mid-nineteenth century, which transformed the city into a central hub for agriculture, manufacturing, and subsequently, financial services. The following five case studies demonstrate how the unique historical development of Des Moines fostered specific industries, and how those industries execute research and development that qualifies under both the federal Internal Revenue Code Section 41 and the stringent Iowa Code 422.33 requirements.

Case Study 1: Insurance and Financial Services Innovation

The global prominence of Des Moines as an insurance powerhouse—often referred to as the “Hartford of the West”—is a direct result of nineteenth-century frontier challenges and strategic legislative frameworks. The foundation of this industry was laid in the mid-1800s in response to devastating frontier fires, such as the 1837 blaze that destroyed the territorial capitol in Burlington, the 1858 destruction of the St. Cloud Hotel in Dubuque, and the 1889 inferno that consumed downtown Grinnell. Furthermore, the treacherous currents and sandbars of the Mississippi River necessitated insurance to ease the risk of loss for steamboat owners and merchants. Iowans, particularly the agrarian population, favored locally owned mutual insurance companies over eastern corporate entities, as mutuals charged policyholders only after a loss occurred.

The industry coalesced in Des Moines when Frederick Hubbell founded the Equitable Life Insurance Company of Iowa in 1867, becoming the first life insurance company in the state. The demand for life insurance surged following the Civil War and the devastating Spanish Flu pandemic of 1918, which caused a massive drop in American life expectancy. Concurrently, the proliferation of unsafe factory machinery led to the 1913 Employer’s Liability and Workmen’s Compensation Act, requiring employers to purchase liability coverage. State regulators in Des Moines fostered a favorable tax and regulatory environment, overseen by the State Auditor starting in 1856 and later the Commissioner of Insurance in 1913, which enticed national conglomerates to relocate operations away from the heavily taxed East Coast. Today, the industry employs approximately 47,000 Iowans, heavily concentrated in Polk and Dallas counties, giving the region a staggering employment location quotient exceeding 6.0.

Within this historical context, a Des Moines-based casualty insurance provider sought to modernize its legacy mainframe systems by developing a proprietary, cloud-native data model and a machine-learning underwriting algorithm intended to automate claims processing. This scenario presents a complex analysis under the United States federal research and development tax credit. The project qualifies under the Internal Use Software provisions of the Internal Revenue Code. The Internal Revenue Service final regulations stipulate that internal use software is held to a higher standard than other types of research, requiring the taxpayer to pass a High Threshold of Innovation test. The software must be highly innovative, meaning it results in a substantial reduction in cost or improvement in speed, it must involve significant economic risk, and it must not be commercially available. The Des Moines insurer met this burden by developing an entirely new backend protocol for seamlessly exchanging data across disconnected medical billing networks, facing high technical uncertainty regarding system latency and data security under peak computational load. The coding, iterative testing of the algorithm, and system architecture design successfully met the federal four-part test, allowing the capture of software engineering wages.

The application of Iowa state law introduces significant constraints. To claim the Iowa Research Activities Credit, the insurer must isolate the wages of the software engineers located physically within the Des Moines corporate campus. While general financial services are excluded under the new 2026 Iowa Research and Development Tax Credit Program, “Insurance and Finance” entities remain eligible if they are developing specialized software. The Iowa Department of Revenue explicitly defines eligible software engineering as the detailed study of the design, development, operation, and maintenance of software. However, pursuant to the legislative overhaul in House File 2317, the company cannot claim the substantial cloud-hosting computing costs utilized during the development phase, as computer leasing is now explicitly disallowed in Iowa. Furthermore, the company must ensure that the software developers spend at least fifty percent of their total annual hours strictly on this qualified project to include any of their wages under the state’s Majority Work limitation. Finally, only the time strictly spent on the process of experimentation, such as coding and compiling, can be captured, as Iowa’s departure from the federal substantially all rule strictly strips away the ability to claim general supervisory or administrative support time. The intersection of corporate structure and tax eligibility in Iowa was also heavily litigated in Myria Holdings, Inc. v. Iowa Department of Revenue, where the Iowa Supreme Court affirmed that a holding company without a taxable nexus or direct taxable income derived from within Iowa cannot join a consolidated tax return to leverage state tax credits, requiring local insurers to carefully structure their research entities.

Des Moines Insurance Industry Employment Metrics Value
Total State Insurance Employment 47,000 workers
Percentage of Total State Workforce 3.0%
Polk County Employment Location Quotient 6.26
Dallas County Employment Location Quotient 10.77
National Rank for Insurance Employment as Share of Total 2nd & 4th (Dallas & Polk Counties)

Case Study 2: Agricultural Technology and Bioscience Engineering

The state of Iowa is the premier agricultural producer in the United States, ranking first in the production of corn, pork, and biofuel. Des Moines acts as the geographic and economic anchor for America’s Cultivation Corridor, an internationally recognized hub for agricultural innovation, food technology, and bioproducts. This dominance traces directly back to Henry A. Wallace, an Iowa native, future United States Vice President, and pioneering geneticist. Guided in his youth by the renowned scientist George Washington Carver at Iowa State College, Wallace began crossbreeding open-pollinated corn on the outskirts of Des Moines in 1904. Wallace famously rejected the conventional agrarian wisdom of the era, which incorrectly assumed that a corn ear’s physical appearance dictated its yield.

Applying early statistical modeling and the emerging science of genetics, Wallace developed “Copper Cross” in 1923, representing the first commercial hybrid corn in the Midwestern United States. In 1926, Wallace and a group of Des Moines businessmen founded the Hi-Bred Corn Company, which would later become Pioneer Hi-Bred. The absolute superiority of hybrid seeds was irrevocably proven during the punishing agricultural disasters of the 1930s Dust Bowl. While historic droughts and dust storms devastated the Midwest and caused nearly thirty percent of Iowa’s corn acres to fail, Pioneer’s deep-rooted, drought-tolerant “307” variety thrived, delivering a lifeline to farmers facing widespread crop loss. Today, Pioneer operates as the global flagship seed brand of Corteva Agriscience, headquartered in the Des Moines suburb of Johnston, employing thousands of researchers in genomic and agronomic development.

In a modern manifestation of this legacy, an agricultural technology firm in Des Moines initiated a multi-year research project to develop a new hybrid soybean seed with enhanced resistance to extended drought conditions. Under the federal Internal Revenue Code Section 41, this research fundamentally relies on the biological sciences, including genetics and botany, satisfying the technological in nature test. The technical uncertainty lies in the unpredictable phenotypic expression of specific gene sequences when exposed to varied soil moisture profiles over prolonged periods. The process of experimentation involves complex genome editing, cultivating thousands of variant plants in environmentally controlled greenhouses, and subjecting them to systematic drought stress to identify the highest-yielding survivors. The wages of the botanists, agronomists, and laboratory technicians, along with the substantial cost of greenhouse supplies such as sterile soil, chemical reagents, and specialized targeted fertilizers, perfectly qualify as in-house research expenses.

The application of the Iowa state tax credit requires careful navigation of the state’s aggressive phase-out mechanisms. The firm operates a sprawling research campus within Greater Des Moines. Under the traditional Research Activities Credit rules applicable prior to 2026, the firm can claim a 6.5 percent credit on the incremental wages and supplies utilized physically within Iowa. However, as the 2026 legislative transition approaches under House File 2317, the firm must prepare for the total phase-out of supply expenditures. The allowable percentage of actual supply costs drops from eighty percent in 2023 to zero percent in 2026. By 2026, the massive cost of the biological reagents and greenhouse supplies will yield absolutely no tax benefit in Iowa, forcing the firm to rely purely on the wages of its Iowa-based geneticists. Fortunately for the taxpayer, this specific firm aligns perfectly with the “Crop Protection” and “Hybrid Seed Technologies” targeted sectors codified in Senate File 657. Therefore, the firm is highly positioned to successfully navigate the new mandatory pre-application process and win approval from the Iowa Economic Development Authority for a portion of the newly capped forty million dollar statewide credit pool.

Case Study 3: Advanced Manufacturing and Heavy Machinery

Advanced manufacturing constitutes Iowa’s largest economic sector by gross domestic product, accounting for over thirty-one billion dollars annually and representing nearly nineteen percent of the state’s total economic output. Des Moines evolved into a manufacturing powerhouse in a symbiotic relationship with its agricultural hinterland. As farmers aggressively expanded across the fertile plains in the nineteenth century, they required robust, localized manufacturing to supply plows, tractors, and mechanized harvesting equipment. This demand was facilitated by the rapid construction of railroads, marking a transportation revolution in the heartland. In 1860, the state possessed only 655 miles of track, but by 1870, this exploded to 2,683 miles, eventually peaking at over 10,500 miles by 1917. The completion of the Chicago, Rock Island and Pacific Railroad in 1867, alongside the Des Moines and Central Iowa Railway, provided the critical logistics infrastructure to export heavy machinery globally.

Today, the Greater Des Moines laborshed features over 72,000 manufacturing workers. The region boasts a fourteen percent lower cost of doing business and twenty-three percent lower energy costs compared to the national average, alongside zero property tax on manufacturing machinery and equipment. This favorable environment has fostered massive reinvestments from industry titans such as John Deere, Vermeer Corporation, and Clow Valve.

A prime example of qualifying research in this sector involves a heavy machinery manufacturer operating a large fabrication plant near Des Moines that sought to develop a fully autonomous, global positioning system-guided combine harvester. The engineering team faced severe technological uncertainties regarding the integration of light detection and ranging sensors with the hydraulic steering systems in high-dust, high-vibration field environments. To eliminate this uncertainty, the company designed, fabricated, and field-tested a physical pilot model. Under federal tax law, the precedent established by the United States Tax Court in Intermountain Electronics, Inc. v. Commissioner is highly relevant. The court’s order provided critical guidance on the inclusion of production staff wages and production supply costs when developing a pilot model, affirming that physical manufacturing processes can qualify if they are fundamentally experimental. The taxpayer successfully tracked the wages of not just the design engineers, but also the specialized union fabrication staff, including welders and machinists, who constructed the pilot model. The raw steel, custom circuitry, and mechanical components consumed in building the prototype, which was ultimately scrapped after destructive testing, were successfully captured as supply expenses.

To satisfy Iowa’s rigorous statutory standards, the firm must implement advanced accounting procedures. The Iowa Department of Revenue explicitly includes the combining of different materials and the production of machinery within its definition of eligible manufacturing. However, the firm must guarantee that the fabrication staff’s time claimed as qualified research expenses was strictly dedicated to the experimental build of the prototype, isolating it entirely from standard commercial production runs. The firm must navigate the state’s departure from the federal eighty percent substantially all rule, which allows the Internal Revenue Service to capture one hundred percent of an employee’s wages if eighty percent of their time is spent on research. Iowa’s newly enacted requirement dictates that strictly one hundred percent of the claimed activities must involve a direct process of experimentation. Furthermore, because the state phased out the inclusion of supply costs, the massive expenditure on raw steel and electronic components used to build the harvester prototype in Des Moines will be excluded from the state credit calculation, significantly reducing the state-level tax benefit compared to the federal level. This forces manufacturers to rely almost exclusively on the wages of their engineering and fabrication workforce when calculating their state tax incentives.

Qualified Research Expense Category Federal Treatment (IRC Section 41) Iowa Treatment (Post-2026 SF 657)
Engineering Wages Fully Eligible Eligible (Subject to 50% Majority Work Rule)
Supervisory/Support Wages Eligible under Substantially All safe harbor Ineligible (Strict 100% Experimentation Rule)
Raw Materials (Steel, Wiring) Fully Eligible Ineligible (Supply Phase-Out Complete)
Destructive Testing Prototypes Fully Eligible Ineligible (Supply Phase-Out Complete)
Computer Rental (Cloud Servers) Fully Eligible Ineligible (Explicitly Disallowed)

Case Study 4: Data Centers and Technology Infrastructure

While traditionally rooted in agriculture and insurance, the Greater Des Moines region has aggressively diversified into digital infrastructure and information technology over the past two decades. Recognizing the exact same structural advantages that built its historic manufacturing base—abundant geographic space, a notably low incidence of natural disasters, cheap and highly reliable utility power, and a highly educated workforce—global technology conglomerates identified the region as a strategic sanctuary. The state’s energy grid, heavily bolstered by MidAmerican Energy’s massive investments in renewable wind farms, provides the immense, stable power required for digital operations. Consequently, major technology companies including Apple, Meta, and Microsoft have poured billions of dollars into sprawling data center campuses in the Des Moines metropolitan area. This massive influx of hardware has spawned a secondary ecosystem of networking startups, cybersecurity firms, and cloud architecture consultancies operating within the city’s burgeoning “Silicon Prairie” technology accelerators.

A mid-sized cybersecurity and cloud-architecture firm based in downtown Des Moines engaged in the intensive development of a proprietary representational state transfer application programming interface designed to encrypt and route massive datasets between regional data centers with near-zero latency. This development effort qualifies extensively under the federal Internal Revenue Code Section 41. The firm faced distinct technical uncertainties related to backend protocol development and overcoming severe bandwidth bottlenecks during high-load encryption events. The process of experimentation involved drafting complex network architecture, coding the interface in Python and C++, and conducting rigorous load testing against simulated cyber-attacks within virtual sandboxes. The wages of the software engineers and the substantial costs paid to third-party server farms to host the experimental virtual environments were properly captured under federal law. Recent tax court jurisprudence, specifically Phoenix Design Group, Inc. v. Commissioner, underscores that the Internal Revenue Service now strictly enforces the requirement for contemporaneous documentation of technological uncertainty at the outset of a project, disqualifying claims based on general, post-hoc assertions of routine design challenges. The Des Moines firm avoided this pitfall by instituting rigorous agile project management software that documented technical roadblocks prior to the commencement of coding sprints.

This case study illustrates a critical divergence between federal and state law that significantly impacts technology firms. While the Internal Revenue Service explicitly permits the inclusion of cloud-hosting costs utilized for software development, Iowa legislative action explicitly prohibits it. Therefore, the firm can only claim the wages of its Des Moines-based software engineers for the state credit. Software and Technology, alongside Chip Technology and Microelectronics, are explicitly designated as protected sectors for the upcoming Iowa Research and Development Tax Credit Program. However, under the incoming Senate File 657 regulations, the firm must hire an independent certified public accountant to verify their qualified research expenses before submitting a competitive application to the Iowa Economic Development Authority. Rather than an automatic entitlement claimed on a tax return, the firm is now competing for a slice of the capped forty million dollar statewide pool. If approved by the state authority, they will receive a non-transferable, refundable credit of up to 3.5 percent of those localized wages, a sharp reduction from the historical 6.5 percent rate.

Case Study 5: Medical Innovation and Animal Health Therapeutics

The state of Iowa has methodically built a reputation as a bioscience epicenter, driven by the convergence of world-class academic research institutions, a rich agricultural heritage, and a highly skilled workforce. The state features roughly 1,800 entities working to commercialize bioscience innovations, experiencing an eight percent employment growth in the sector between 2016 and 2021. The geographic proximity of Des Moines to Ames—which serves as the national epicenter for animal health research and is home to the United States Department of Agriculture National Animal Disease Center—has created a highly integrated and synergistic research cluster. Companies operating in this corridor benefit immensely from a specialized labor pool of microbiologists, epidemiologists, and biomedical engineers generated by the University of Iowa and Iowa State University. The Iowa Economic Development Authority has specifically nurtured this cluster through the creation of BioConnect Iowa, a public-private organization targeting vaccines, diagnostics, therapeutics, and broader medical innovation.

In a scenario representative of this sector, a biotechnology startup operating a laboratory in the Des Moines metropolitan area undertook the high-risk development of a rapid diagnostic assay capable of detecting a novel zoonotic pathogen in both livestock herds and human populations. Under federal guidelines, the research is deeply and fundamentally rooted in the biological sciences and biochemistry. The fundamental technical uncertainty revolved around isolating the specific antigen binding sites that would yield a statistically significant positive predictive value without cross-reacting with endemic, benign viruses commonly found in the agricultural environment. The scientific team designed molecular blueprints, synthesized custom antibodies, and conducted thousands of iterative benchtop assays to eliminate this uncertainty. The salaries of the principal investigators and laboratory technicians, the costs of the chemical reagents, petri dishes, and biological samples, and the significant fees paid to a third-party contract research organization for independent validation testing were all captured as qualified research expenses. When utilizing third-party testing, taxpayers must be acutely aware of the funded research exclusion scrutinized in Meyer, Borgman & Johnson, Inc. v. Commissioner. The ruling underscored that if a taxpayer’s payment to a contractor is not strictly contingent on the success of the research, the research may be considered funded and therefore ineligible. The Des Moines startup ensured that their contracts with the research organization stipulated payment based strictly on the successful delivery of validated diagnostic results, preserving their federal eligibility.

The application of Iowa state law to clinical and outsourced testing requires strict geographic accounting. Because the contract research organization testing occurred in a specialized facility in neighboring Illinois, those contract research expenses must be strictly excluded from the Iowa tax credit calculation. Iowa Code mandates that the research must physically occur within the borders of the state of Iowa to be apportioned for the credit. Consequently, the firm will compute its Iowa credit strictly utilizing the wages of its Des Moines staff. Due to the firm’s direct alignment with the “Diagnostic Analytics and Immunotherapies” and “Pharmaceuticals” targeted sectors, it is perfectly positioned to apply for the Iowa Economic Development Authority’s new Research and Development Tax Credit Program in 2026. Furthermore, because the startup currently generates under twenty million dollars in gross revenue and participates in the High Quality Jobs Program, they historically qualified for the massive Supplemental Research Activities Tax Credit, adding up to an additional ten percent onto their base credit, serving as a critical source of non-dilutive capital during their pre-revenue clinical phases.

Detailed Analysis: The United States Federal Tax Credit Framework

The United States federal Research and Development tax credit, permanently codified under Internal Revenue Code Section 41, remains one of the most complex yet lucrative incentives available to domestic businesses. It provides a direct, dollar-for-dollar reduction in federal income tax liability for expenditures incurred in the development of new or improved products, processes, software, techniques, formulas, or inventions. Navigating the statutory requirements demands a sophisticated understanding of legal definitions, accounting principles, and scientific methodologies.

The Statutory Four-Part Test

To qualify for the federal credit, the underlying research activities must satisfy a rigorous, cumulative four-part test applied separately to each discrete business component of the taxpayer. Failure to meet any single prong of this test completely disqualifies the activity from the credit calculation.

The first hurdle is the Section 174 Test, also known as the Permitted Purpose test. In order to meet this requirement, the expenditure must be eligible to be treated as an expense under Internal Revenue Code Section 174. This section mandates that expenditures must be incurred in connection with the taxpayer’s active trade or business and represent research and development costs in the experimental or laboratory sense. The statute explicitly excludes expenditures for the acquisition of land, depreciable property, and the exploration of minerals, including oil, gas, and ore. Historically, Section 174 allowed taxpayers to immediately deduct these expenses in the year they were incurred. However, following the enactment of the Tax Cuts and Jobs Act of 2017, Section 174 was fundamentally altered to require the mandatory amortization of domestic research and development costs over a five-year period. This significantly impacted corporate cash flows. Recently, the legislative landscape shifted again with the One Big Beautiful Bill Act and the introduction of Section 174A. This new provision provides a retroactive election allowing certain eligible small businesses, defined as those with average annual gross receipts under thirty-one million dollars, to expense all remaining domestic research costs incurred in 2022, 2023, and 2024, subject to complex amended return procedures.

The second requirement is the Technological in Nature test. The research must fundamentally rely on the principles of the hard sciences, specifically physical sciences, biological sciences, computer science, or engineering. The statute explicitly prohibits research based on the social sciences, psychology, humanities, or economics. Routine data collection, market research, or aesthetic design modifications do not meet this threshold.

The third requirement is the Elimination of Uncertainty test. The activities must be intended to discover information that eliminates technical uncertainty concerning the development or improvement of a business component. Under the treasury regulations, uncertainty exists if the information available to the taxpayer at the outset of the project does not establish the capability of developing the component, the method of developing the component, or the appropriate design of the component. The Internal Revenue Service has aggressively enforced this provision in recent years. As demonstrated in Phoenix Design Group, Inc. v. Commissioner, the United States Tax Court ruled that a taxpayer who failed to identify specific technical uncertainties before commencing research activities forfeited their claim. The court mandated that clear, contemporaneous documentation of technological uncertainty must exist at the outset of a project, striking down claims based merely on general, post-hoc assertions of routine design challenges.

The fourth and final requirement is the Process of Experimentation test. The statute dictates that substantially all of the research activities must constitute elements of a process of experimentation. For federal tax purposes, the treasury regulations define “substantially all” as eighty percent or more. If this threshold is met, the entirety of the employee’s time can be captured. The process of experimentation involves identifying the technical uncertainty, formulating one or more hypotheses designed to resolve the uncertainty, and conducting evaluative testing—such as computational modeling, physical simulation, or systematic trial and error—to validate or reject the hypotheses.

Qualified Research Expenses and Administrative Scrutiny

Under Internal Revenue Code Section 41, Qualified Research Expenses are strictly defined as the sum of in-house research expenses and contract research expenses. In-house expenses include the wages paid to employees directly engaging in, supervising, or directly supporting qualified research; the cost of supplies used in the conduct of qualified research; and the rental or lease costs of computers for cloud-hosted development environments.

The Internal Revenue Service has recently deployed its advanced Classifier review system to aggressively deny refund claims before they even reach a human examiner, highlighting the critical need for bulletproof documentation. Furthermore, the agency has mandated drastic revisions to Form 6765, the form used to claim the credit. Originally slated for 2024 but delayed to the 2025 tax year, the revised form will require unprecedented granular, project-by-project documentation of qualified research expenses, forcing claimants to maintain exhaustive time-tracking and qualitative narratives to substantiate their eligibility. This shifts the burden heavily onto corporate tax departments and their external certified public accountants to meticulously map every dollar claimed to a specific experimental hypothesis.

Detailed Analysis: The Iowa State Research Activities Credit Framework

The State of Iowa has historically maintained one of the most generous state-level research and development tax incentives in the United States, designed primarily to mirror the federal definitions of Internal Revenue Code Section 41 while rewarding research specifically conducted within the state’s geographic borders. The Iowa credit was long considered an automatic, formulaic entitlement that could be claimed by any qualified taxpayer on their annual return. However, rapidly escalating fiscal costs—which saw the credit contribute over eight hundred million dollars in subsidies to businesses over a fourteen-year period—prompted intense public scrutiny and sweeping legislative reforms to Iowa Code Section 422.33. In a single year, the state reported processing 84.6 million dollars in subsidy claims, with forty-two percent of that amount paid directly as cash refunds to firms that owed absolutely no state income tax, including massive multinational conglomerates. This dynamic triggered a fundamental paradigm shift in how Iowa incentivizes corporate research.

The Traditional Framework and House File 2317 Reforms

Until the end of the 2025 tax year, the Iowa Research Activities Credit operates as a fully or partially refundable credit calculated via two distinct methods, strictly provided that the taxpayer also claims the federal credit for the exact same tax year. The Regular Method calculates a 6.5 percent credit on the excess of qualified research expenses conducted in Iowa over a computed base amount. This base amount is calculated by multiplying a fixed-base percentage by the taxpayer’s average annual gross receipts for the four prior tax years, ensuring the credit rewards incremental increases in research spending rather than static budgets. Alternatively, taxpayers may elect the Alternative Simplified Method, which yields a 4.55 percent credit on the difference between the current year’s Iowa expenses and fifty percent of the average of the prior three years’ expenses. Taxpayers using the alternative method for federal purposes are legally mandated to mirror this election for their Iowa calculation.

In an effort to curb escalating payouts, Iowa Governor Kim Reynolds signed House File 2317 into law in 2022, initiating severe restrictions on the computation of the state credit. This legislation aggressively phased out supply expenses as eligible qualified research expenses. The allowable percentage of actual supply costs was reduced to eighty percent in 2023, sixty percent in 2024, forty percent in 2025, and will be completely excluded from the computation by 2026. Furthermore, House File 2317 explicitly disallowed the inclusion of computer lease or rental costs, entirely stripping cloud computing expenses from the state credit.

Perhaps the most disruptive change was the elimination of the federal substantially all safe harbor. While the federal government allows a company to claim one hundred percent of an employee’s wages if they spend eighty percent of their time on research, Iowa enacted a strict one hundred percent experimentation rule. The state now requires that strictly one hundred percent of the claimed activities must involve a direct process of experimentation, eliminating the ability to claim wages for routine supervision or administrative support. The legislation also introduced a Majority Work limitation, dictating that an employee must spend greater than fifty percent of their total annual hours specifically on Iowa-based research projects for any portion of their wages to be eligible. Finally, the legislation capped the refundability of the credit at eighty percent for the regular credit and ninety percent for the supplemental credit, with absolutely no provision to carry forward the unrefunded remainder.

The 2026 Paradigm Shift: Senate File 657

Recognizing that incremental restrictions were insufficient to control the budget, the Iowa legislature subsequently enacted Senate File 657, which abolishes the traditional Research Activities Credit entirely effective January 1, 2026, replacing it with the new R&D Tax Credit Program. This legislation fundamentally transmutes the incentive from an automatic, formula-based tax entitlement administered by the Department of Revenue into a highly competitive, capped grant administered by the Iowa Economic Development Authority.

The new program establishes an absolute annual statewide cap of forty million dollars. The base credit rate is slashed from 6.5 percent down to a maximum of 3.5 percent of qualifying in-state expenses. To access these funds, businesses must formally pre-apply with the economic development authority to determine their eligibility and must renew this certification every five years. Annually, approved businesses must submit detailed reports of their qualified research expenses that have been independently verified and validated by a certified public accountant. The credits will then be allocated on a pro-rata basis from the limited pool.

Crucially, the new legislation weaponizes the tax code to perform economic engineering, restricting eligibility to highly specific sectors within targeted industries. General businesses are no longer eligible. To qualify, a business must be primarily engaged in advanced manufacturing, bioscience, insurance and finance, or technology. Furthermore, they must fit into narrow sub-sectors explicitly defined in the statute, such as second-generation food innovation, crop protection, hybrid seed technologies, diagnostic analytics, microelectronics, aerospace, or pharmaceuticals. The law explicitly excludes entities engaged in agricultural production, construction, general finance, real estate, retail, and transportation, effectively ending the broad applicability of the historic credit.

Iowa Research Credit Evolution Historic RAC (Pre-HF 2317) Transitional RAC (2023-2025) New R&D Program (Post-2026)
Administrative Body Department of Revenue Department of Revenue Economic Development Authority
Credit Mechanism Automatic Entitlement Automatic Entitlement Competitive Application
Annual Statewide Cap None (Unlimited) None (Unlimited) $40 Million Maximum
Base Credit Rate 6.5% 6.5% Up to 3.5%
Industry Eligibility Broad Application Limited Exclusions Strictly Targeted Sectors Only
Supply Expense Inclusion 100% Eligible Phasing down to 0% 0% Eligible
Process of Experimentation 80% Safe Harbor Allowed 100% Strict Requirement 100% Strict Requirement
Verification Requirement Standard IRS Audit Risk Heightened DOR Audit Risk Mandatory Independent CPA Audit

Taxpayers participating in the Iowa research credit ecosystem must also be acutely aware of the transparency risks inherent in state-level tax protests. In the recent case of POET DSM Project Liberty LLC v. Iowa Department of Revenue, a taxpayer protested the denial of their tax credits and subsequently moved to keep their detailed filings and supporting technical exhibits confidential as trade secrets under the Iowa Open Records Act. The Iowa Court of Appeals ruled that documents submitted in administrative tax protests are not categorically exempt from public records requests, demonstrating a severe risk that highly proprietary research and development data could be exposed to competitors or the public during a dispute with the state department of revenue. This jurisprudential reality forces companies in Des Moines to carefully weigh the financial benefits of the credit against the potential forfeiture of intellectual property confidentiality during an audit.

The information in this study is current as of the date of publication, and is provided for information purposes only. Although we do our absolute best in our attempts to avoid errors, we cannot guarantee that errors are not present in this study. Please contact a Swanson Reed member of staff, or seek independent legal advice to further understand how this information applies to your circumstances.

R&D Tax Credits for Des Moines, Iowa Businesses

Des Moines, Iowa, is a hub for industries such as finance, insurance, healthcare, and technology. Top companies in the city include Principal Financial Group, a leading financial services provider; Wells Fargo, a major banking company; UnityPoint Health, a prominent healthcare provider; Nationwide Mutual Insurance Company, a key insurance company; and Corteva Agriscience, a major agricultural technology company. The Research and Development (R&D) Tax Credit can help these industries reduce their tax liabilities, foster innovation, and enhance business performance.

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Des Moines, Iowa Patent of the Year – 2024/2025

Bristola LLC has been awarded the 2024/2025 Patent of the Year for its innovation in automated waste removal from anaerobic digesters. Their invention, detailed in U.S. Patent No. 11883863, titled ‘Auger cleaned inaccessible floor system’, introduces an auger-based cleaning system that operates without halting facility operations.

This system features a specialized auger cleaner that enters the digester through a controlled gate complex. Once inside, the auger agitates and transports waste through a connected pipe system, efficiently removing sludge without manual intervention. The design includes a boom and waste discharge pipe, ensuring continuous operation and minimal downtime.

The real-world impact is substantial. Facilities can maintain optimal performance without the risks associated with manual cleaning. By automating the waste removal process, Bristola’s system enhances safety, reduces operational interruptions, and supports sustainable energy production.

Founded in 2019 and headquartered in Des Moines, Iowa, Bristola specializes in renewable energy technology services. Their commitment to innovation is evident in this patented system, which addresses critical challenges in the maintenance of anaerobic digesters. By eliminating the need for human entry and allowing for continuous operation, Bristola sets a new standard in facility maintenance and safety.


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