The Geographic Constraint: Analysis of the Research Expenses Incurred Outside of the State (Exclusion) in Hawaii’s R&D Tax Credit
Research Expenses Incurred Outside of the State (Exclusion) refers to the principle that Hawaii’s Tax Credit for Research Activities (TCRA) is strictly limited to Qualified Research Expenses (QREs) physically conducted within the state’s geographic boundaries. This limitation is enforced through a mandatory proration formula applied to the calculated federal research credit, diluting the state benefit by the proportion of research activity performed elsewhere.
I. Executive Summary: The Geographic Principle of the Hawaii R&D Credit
The Hawaii Tax Credit for Research Activities (TCRA), codified under Hawaii Revised Statutes (HRS) § 235-110.91 1, is fundamentally structured as a geographically restrictive incentive. The exclusion of out-of-state expenses is central to the state’s economic development strategy, ensuring that significant tax relief, particularly the refundable component, is directly correlated with investment in Hawaii’s local economy.
1.1. Key Policy Drivers and Statutory Context
The TCRA’s primary objective is to foster innovation and technological advancement within the state.2 Unlike some state credits that offer simple parity with the federal credit, Hawaii mandates that the benefit be tied to activities conducted specifically “in the previous taxable year” within the islands.1 This strict geographic sourcing requirement is not merely a technical compliance point; it reflects a legislative intent to utilize the refundable tax credit as a precise mechanism for direct local investment, primarily through generating local wages, supporting local supply chains, and driving employment growth.
The Hawaii Revised Statutes incorporate federal IRC Section 41 (regarding research activity eligibility) and Section 280C(c) (regarding the required expense adjustment).1 However, the state law immediately qualifies these adoptions by explicitly requiring the exclusion of research expenses incurred outside of the State.1 This critical modification underscores Hawaii’s determination to adopt the federal definition of qualified research (e.g., the four-part test) but maintain absolute control over the location where those activities must occur to receive state support.4
1.2. Summary of Exclusion Mechanism and Compliance Requirements
The calculation methodology for the Hawaii credit is designed to operationalize this geographic exclusion. Taxpayers must first calculate their federal R&D credit (the “credit pool”), and then apply a proportional ratio to determine the Hawaii benefit.
$$\text{Hawaii Credit} = \text{Federal Credit} \times \left( \frac{\text{Hawaii QREs}}{\text{Total Federal QREs}} \right)$$
This mechanism ensures that the state credit is claimed only for the percentage of qualified research expenses (QREs) physically performed and sourced within Hawaii.
Compliance is subject to dual-agency oversight. The taxpayer must not only satisfy the Department of Taxation (DOTAX) requirements for filing Form N-346 and supporting documentation (including a copy of the federally filed Form 6765) 5, but must also receive certification from the Department of Business, Economic Development, and Tourism (DBEDT) via Form N-346A.5 This coordination between DOTAX and DBEDT increases administrative rigor but tightens accountability regarding the economic output associated with the credit, ensuring that data on local employment and expenditures is collected and reviewed.1
II. Statutory Foundation: HRS § 235-110.91 and Geographic Limitation
The foundation for the geographic exclusion rests on the specific language of HRS § 235-110.91.
2.1. Legislative Mandate for In-State Activity
Although Hawaii adopts IRC Section 41, the state’s application is customized. The credit applies only to qualified research expenses that are local in origin. Recent legislation, Act 139 of 2024, significantly amended the TCRA for taxable years beginning after December 31, 2023, by repealing the prior provision that disregarded the federal base amount.5 Now, the federal incremental method must be used.6
The mandatory use of the federal base amount computation requires tracking historical gross receipts and calculating the fixed-base percentage to determine excess QREs eligible for the federal credit.6 Since the Hawaii credit is derived directly from this calculated federal “pool,” the taxpayer must accurately execute the complex federal calculation. If a multi-state taxpayer makes an error in calculating their total federal base or QREs—even those incurred outside Hawaii—that error inherently propagates and impacts the resulting Hawaii allocation. This structure imposes the full burden of complex federal compliance directly onto the state filing process, increasing audit exposure for the base calculation itself.
2.2. Defining the Qualified High Technology Business (QHTB): The 50% In-State Test
The eligibility requirement for the TCRA adds another layer of geographic scrutiny through the definition of a Qualified High Technology Business (QHTB). To qualify for the credit, a business must meet several criteria, including being registered in Hawaii, having no more than five hundred employees, and, crucially, conducting more than 50 percent of its activities in qualified research in Hawaii.5
This 50% QHTB status test functions as a gatekeeper, distinct from the credit calculation. It verifies whether the company’s core business purpose is centered within the state’s designated high-tech sectors, such as biotechnology, software development, or ocean sciences.6 For example, a company conducting 51% of its QREs in Hawaii satisfies the eligibility threshold, yet the subsequent calculation of the credit remains subject to proration. If that company had $100,000 in QREs, it would only claim the credit on the 51% portion sourced to Hawaii. The exclusion mechanism thus reinforces that while the business must be “local enough” to qualify, the resulting subsidy is only provided to expenses deemed “local enough” to be allocated.
III. The Mechanism of Exclusion: Proportional Allocation Methodology
The exclusion is not handled through a separate subtraction form; rather, it is embedded within the proportional allocation formula, resulting in a direct dilution of the available credit pool.
3.1. Understanding the Dilution Effect of Out-of-State Expenses
The primary function of the allocation formula is to isolate the portion of the federal credit that corresponds precisely to the activities performed in Hawaii.
The calculation requires the identification of two key expense totals 6:
- Total Federal QREs (Denominator): This figure includes all QREs reported on Federal Form 6765, regardless of geographic source. It incorporates research activities conducted nationally or globally.5
- Hawaii QREs (Numerator): This figure is limited strictly to QREs attributable to activities physically conducted in Hawaii.5
If a multi-state taxpayer incurs significant out-of-state QREs, those expenses boost the denominator without increasing the numerator. This process mathematically reduces the allocation ratio and, consequently, the final Hawaii credit amount. The inclusion of out-of-state QREs in the federal calculation thus exerts a direct economic dilution factor on the state benefit.
3.2. Geographic Sourcing Rules for QRE Categories
Accurate compliance with the geographic exclusion requires precise sourcing of the three main categories of QREs—wages, supplies, and contract research expenses. The sourcing determination focuses on the physical location of performance or consumption.
3.2.1. Qualified Wages
Wages for qualified services (research, direct supervision, or direct support) are sourced based on where the services are physically rendered.1 For employees who travel or split time between Hawaii and mainland facilities, only the proportionate amount of wages corresponding to services rendered in Hawaii can be included in the numerator. This necessitates detailed, auditable records, such as time sheets and travel expense logs, to substantiate the physical location of the researcher’s activities.
3.2.2. Qualified Supplies
The cost of supplies used or consumed in the research process is sourced to the location of consumption. If materials are purchased in Hawaii but subsequently shipped and used at a laboratory outside the state, the expense must be excluded from the Hawaii QREs.
3.2.3. Contract Research Expenses
Contract research expenses (65% of the payment) must be sourced to the location where the third-party contractor actually performs the qualified research activity. The location where the contract is signed, or where the research results are delivered, is irrelevant for sourcing purposes. If a Hawaii QHTB contracts a university or a consulting firm on the mainland to perform 65% of the qualified research, that portion of the expense must be excluded from the Hawaii QREs numerator.
Hawaii QRE Geographic Sourcing Requirements
| QRE Category | Federal Inclusion Basis (IRC § 41) | Hawaii Exclusion Principle | Required Sourcing Determination | Compliance Documentation |
| Qualified Wages | Compensation for qualified services (research, direct supervision, direct support) | Exclude wages for services performed outside Hawaii | Location of Service Delivery | Payroll records, time sheets, travel expense reports |
| Qualified Supplies | Tangible property used or consumed in the research | Exclude supplies consumed outside Hawaii | Location of Consumption | Inventory records, purchase orders linked to project sites |
| Contract Research Expenses | 65% of amounts paid for qualified research | Exclude expenses where the research is performed by the contractor outside Hawaii | Location of Research Performance by Contractor | Contract terms, contractor invoices, internal QRE allocation documentation |
IV. Hawaii Department of Taxation (DOTAX) Guidance and Compliance
The enforcement of the geographic exclusion is systematically managed through mandatory reporting and certification procedures overseen by DOTAX and DBEDT.
4.1. Formal Reporting Requirements (Form N-346)
Form N-346, used to figure and claim the TCRA under HRS § 235-110.91, is the primary mechanism for DOTAX to verify the exclusion.5 The form mandates a clear segregation of expenses, requiring taxpayers to report expenses in two distinct columns on Line 2 5:
- Column A: Requires entry of the total eligible research expenses reported on Federal Form 6765, representing the denominator of the allocation ratio.
- Column B: Requires entry of the amount of those eligible research expenses that are strictly attributable to research activity conducted IN HAWAII, representing the numerator.
The instructions explicitly state that expenses attributable to research activities OUTSIDE HAWAII do not qualify for the credit.5 By requiring the direct attachment of the federally filed Form 6765, DOTAX enables auditors to perform a rapid cross-reference, ensuring that the Hawaii QREs reported (Column B) are mathematically consistent with the federal total (Column A).
4.2. Substantiation and Audit Focus
Due to the refundable nature of the Hawaii tax credit 2, the DOTAX applies a high evidentiary standard to geographic substantiation. Taxpayers must be prepared to defend the sourcing of every QRE dollar reported in Column B of Form N-346.
Because the state benefit is essentially a reimbursement of expenses, auditors require documentation beyond that required for federal purposes. This documentation must explicitly tie labor hours and supply usage to a physical address within Hawaii.5 Without rigorous, contemporaneous records demonstrating the physical location of the research performance—such as detailed logbooks for researchers splitting time between states or consumption logs for specific lab equipment—auditors are likely to classify those unverified expenses as having been incurred outside the state and subsequently exclude them from the Hawaii QRE calculation.
4.3. DBEDT Certification and Annual Survey Compliance
The DBEDT plays a critical oversight role, verifying the taxpayer’s QHTB status and monitoring the economic impact of the credit.3 Certification via Form N-346A is mandatory and must be filed annually by March 31 following the taxable year.1
Furthermore, certified QHTBs must complete an annual survey detailing specific metrics, including total expenditures, qualified expenditures, and local Hawaii employment and wage data.1 This data loop serves an important purpose: it allows DBEDT, in collaboration with DOTAX, to “study the effectiveness of the tax credit”.3 The accuracy of the Hawaii QREs reported (the numerator of the proration formula) must correlate with verifiable growth in local employment and technological output reported in the survey. If the data derived from the geographically sourced QREs fails to justify the state revenue loss, it provides the legislative rationale for allowing the credit to lapse upon its sunset date of December 31, 2029.4 Failure to file this annual survey constitutes a waiver of the right to claim the credit.5
V. Case Study: Illustrative Example of the Exclusion
This example illustrates the practical application of the geographic exclusion using the current calculation methodology required for taxable years beginning after December 31, 2023, which incorporates the mandatory federal base amount.
5.1. Scenario Setup
Aloha Robotics Inc. is a company developing new sensor technologies, registered and operating research facilities in Hawaii. The company qualifies as a QHTB, meeting the 50% in-state research activity threshold.
Summary of Incurred QREs (Tax Year 2024):
- Hawaii-Sourced QREs (Maui Lab): $1,500,000 (Wages) + $300,000 (Supplies) = $1,800,000
- Out-of-State QREs (Mainland Facilities): $1,000,000 (Wages, California) + $200,000 (Contract Research, Texas) = $1,200,000
- Total Federal QREs: $3,000,000
The company has determined its required Federal Base Amount (calculated using the four preceding years of gross receipts, as per Act 139) to be $1,500,000.
5.2. Step 1: Determining Federal Qualified Research Expenses (QREs) and Base Amount
The federal calculation determines the total pool of refundable credit.
- Total Federal QREs (reported in Form 6765 and Form N-346, Column A): $3,000,000
- Federal Base Amount (per IRC § 41 requirements): $1,500,000
- Excess QREs (Line 1 – Line 2): $1,500,000
5.3. Step 2: Calculating the Federal Credit (The Pool)
Assuming the regular 20% credit rate on excess QREs:
- Federal Credit: $1,500,000 (Excess QREs) $\times$ 20% = $300,000
This $300,000 represents the maximum potential credit before the geographic limitation is applied.
5.4. Step 3: Applying the Proration Formula to Determine the Hawaii Credit (The Exclusion)
The exclusion is enforced by the proportional allocation ratio:
- Hawaii QREs (Numerator, reported in Form N-346, Column B): $1,800,000
- Total Federal QREs (Denominator): $3,000,000
- Hawaii Allocation Ratio: $\frac{\$1,800,000}{\$3,000,000} = 60.0\%$
- Final Hawaii Credit: $300,000 (Federal Credit) $\times$ 60.0% = $180,000
In this example, the $1,200,000 in out-of-state QREs were essential for generating the initial federal credit pool but, simultaneously, they reduced the state’s allocation ratio from 100% to 60.0%. The exclusion thus mathematically limits the Hawaii benefit to the exact proportion of research physically performed within the state.
Illustrative Calculation: Impact of Out-of-State QRE Exclusion (Post-Act 139)
| Calculation Parameter | Federal (Total) QREs (Form 6765, Col. A) | Hawaii (In-State) QREs (Form N-346, Col. B) | Analysis |
| 1. Total Current Year QREs | $3,000,000 | $1,800,000 | The $1,200,000 difference is the excluded out-of-state expense. |
| 2. Federal Base Amount (IRC § 41) | $1,500,000 | N/A | Mandatory calculation for federal eligibility. |
| 3. Excess QREs | $1,500,000 | N/A | The amount generating the federal credit. |
| 4. Federal Credit Allowed (20% of Excess) | $300,000 | N/A | The total refundable credit pool. |
| 5. Hawaii Allocation Ratio | N/A | $1,800,000 $\div$ $3,000,000 | 60.0% |
| 6. Final Hawaii Credit (Line 4 $\times$ Line 5) | N/A | $180,000 | The maximum refundable Hawaii credit claimed. |
VI. Conclusion and Strategic Implications
The Research Expenses Incurred Outside of the State (Exclusion) is the critical definitional element that transforms the Hawaii TCRA from a simple mirror of the federal credit into a targeted incentive for local economic activity. Businesses must approach compliance with the understanding that the state benefit is entirely dependent on proving the physical location of research performance.
6.1. Strategic Documentation and Sourcing Recommendations
For multi-state Qualified High Technology Businesses (QHTBs), proactive strategic sourcing is essential to maximizing the refundable credit. Because the ratio formula automatically penalizes interstate activity, every qualified expense dollar must be sourced to Hawaii to improve the allocation percentage.
Taxpayers should implement protocols to ensure contemporaneous documentation is maintained. This extends beyond standard tax files to include detailed time tracking and geo-location logs for researchers, especially those who travel, accurately demonstrating the percentage of service delivery performed in Hawaii. Furthermore, companies engaging in contract research must establish clear contractual terms and verification procedures to confirm that the contracted research activity itself is physically performed on Hawaiian soil, as relying merely on the location of the contract execution or result delivery is insufficient and will trigger the exclusion.
6.2. Interaction with the $5 Million Annual Aggregate Cap
The Hawaii TCRA is subject to an annual statewide aggregate cap of $5 million.4 The allocation of this limited pool is determined on a first-come, first-served basis, prioritized by the timestamp of the DBEDT application (Form N-346A).6
This financial constraint introduces a layer of regulatory pressure on top of technical compliance. Even if a business meticulously calculates its Hawaii QREs, rigorously excluding all out-of-state expenses, the resulting refundable credit may be reduced or entirely lost if the DBEDT application is not submitted promptly by the March 31 deadline.1 For QHTBs seeking substantial credits, the combination of complex geographic sourcing requirements and the competitive aggregate cap necessitates that QRE analysis be completed months ahead of the standard income tax return filing schedule.
6.3. Future Outlook and Sunset Date
The TCRA is scheduled to sunset for taxable years beginning after December 31, 2029.1 The legislature’s decision regarding potential extension will hinge on the economic efficacy of the program, which DBEDT and DOTAX study using the data collected via the annual QHTB survey.3
The exclusion of out-of-state expenses ensures that the data submitted—specifically the Hawaii QREs and corresponding wage and employment figures—is highly representative of local economic activity. This data provides the measurable proof required to justify the state’s investment in the credit. Therefore, compliance with the rigorous geographic exclusion rules serves the dual purpose of achieving tax benefits while simultaneously validating the program’s success for legislative review.
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The Research & Experimentation Tax Credit (or R&D Tax Credit), is a general business tax credit under Internal Revenue Code section 41 for companies that incur research and development (R&D) costs in the United States. The credits are a tax incentive for performing qualified research in the United States, resulting in a credit to a tax return. For the first three years of R&D claims, 6% of the total qualified research expenses (QRE) form the gross credit. In the 4th year of claims and beyond, a base amount is calculated, and an adjusted expense line is multiplied times 14%. Click here to learn more.
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