Hawaii’s Research Credit Gatekeeper: An Exhaustive Analysis of the Certification of Credits (HRS §235-110.91) and the Impact of Act 139
The Certification of Credits represents the mandatory administrative verification, issued by the Department of Business, Economic Development, and Tourism (DBEDT), confirming a Qualified High Technology Business (QHTB) is eligible for and has correctly quantified the Hawaii Tax Credit for Research Activities (TCRA). This certification is a non-negotiable prerequisite that must be obtained and attached to the taxpayer’s final Hawaii income tax return to validate the refundable credit claim under Hawaii Revised Statutes (HRS) §235-110.91.1
I. Executive Summary: The Certification Mandate and Strategic Compliance
The strategic challenge for businesses seeking the Hawaii TCRA lies not merely in calculating the credit but in successfully navigating the administrative process controlled by DBEDT. The certification process, which culminates in the issuance of the signed Form N-346A, is the critical administrative bottleneck in claiming the refundable credit.2 Failure to secure this certification prior to the exhaustion of the state’s annual aggregate cap renders an otherwise valid claim useless.
Strategic compliance requires a company to master the requirements of two distinct state agencies simultaneously: DBEDT and the Department of Taxation (DOTax). DBEDT acts as the economic policy gatekeeper, verifying QHTB status and credit calculation accuracy, while allocating the credit on a first-come, first-served basis against the $5 million annual cap.3 DOTax, conversely, handles the final income tax return submission and manages subsequent compliance and audit activity, relying heavily on the certified N-346A provided by DBEDT.4 Therefore, successful attainment of the credit hinges on pre-emptive preparation and administrative speed, rather than solely on meeting the statutory tax filing deadlines.
II. Statutory and Regulatory Foundation (HRS §235-110.91)
2.1. Legislative Intent and Statute Overview
The Tax Credit for Research Activities (TCRA), codified in HRS §235-110.91, was established to foster economic diversification by incentivizing research and development (R&D) investment within the state.1 The core mechanism of this incentive is a refundable credit against Hawaii income tax.3 Refundability means that if the calculated credit exceeds the taxpayer’s state tax liability, the excess amount is paid out as cash. This feature provides vital cash liquidity, making the credit particularly attractive and economically impactful for early-stage companies, which often have high research expenses but little to no taxable income.3 Data gathered by DBEDT confirms the program’s efficacy in fostering local high-tech employment; fully 50% of QHTBs surveyed reported they would have either significantly reduced or entirely ceased their research spending in Hawaii without the state tax credit.5
The program, however, is not permanent. Following an extension enacted by Act 139, Session Laws of Hawaii (SLH) 2024, the credit’s sunset provision dictates that it will not apply for tax years beginning after December 31, 2029.4
2.2. Critical Analysis of Act 139 (SLH 2024) Amendments
Act 139, effective for taxable years beginning after December 31, 2023, introduced major changes to both the calculation methodology and the eligibility criteria for the TCRA.4 These amendments reflect a legislative effort to align the state credit more closely with federal tax standards and to focus the benefit on truly local, small enterprises.
The most significant modification was the repeal of the provision that previously allowed the credit to be taken without regard to expenses incurred in previous years. Prior to Act 139, the state allowed credits based on the total qualified research expenditures (QREs) incurred in Hawaii. Now, the statutory base amount provision in Internal Revenue Code (IRC) Section 41 must be applied.4 This change mandates that the Hawaii TCRA must be calculated based on incremental research expenditures above a historical base amount, mirroring the federal R&D credit methodology.6
This reinstatement of the incremental calculation structure has a profound effect on program integrity and cost management for the state. By requiring the use of the IRC §41 base amount, the legislature substantially moderated the potential financial outflow. This move reduced the average claimed credit per QHTB from an average of over $450,000 during the 2020-2023 period (when the total expense method was allowed) to approximately $160,000 in 2024.5 This structural reduction in individual claim size ensures that the program can sustain more participants without exceeding the $5 million annual cap, thereby mitigating the risk of immediate oversubscription and ensuring the longevity of the program as a reliable incentive for a broader number of small, consistently growing firms.
III. The Eligibility Gate: Defining the Qualified High Technology Business (QHTB)
The ability to claim the TCRA is strictly contingent upon meeting the definition of a Qualified High Technology Business (QHTB). This determination involves satisfying both a federal prerequisite and rigorous state-specific criteria established by Act 139.
3.1. Federal Prerequisite and Definition of QREs
A foundational requirement for the Hawaii TCRA is that the taxpayer must also claim the federal R&D tax credit under IRC Section 41.4 If the business cannot substantiate and claim the federal credit, the state credit is immediately unavailable.4
Qualified Research Expenses (QREs) for the purpose of this credit adhere to federal definitions, generally encompassing costs related to wages, supplies, and contract research performed in connection with qualified research activities (QRAs).3 In Hawaii, the nature of certified QREs is heavily concentrated in labor costs; research data indicates that over 80% of QREs incurred in the 2024 tax year were attributable to wages paid for employees performing, supervising, or directly supporting qualified high-tech research.3
3.2. Strict QHTB Criteria Post-Act 139
The amended definition of a QHTB is highly restrictive, serving to focus the tax benefit on local enterprises with a deep commitment to Hawaii-based research.4 To qualify, the business must meet all of the following criteria:
- Small Business Limitation: The QHTB must be classified as a small business, explicitly defined as a company with no more than five hundred employees.3
- Majority Local Activity: The business must conduct more than 50 percent of its activities in qualified research in Hawaii.4
- Registration: The entity must be registered to do business in the State of Hawaii.4
The combination of the employee limit ($\le 500$) and the majority local activity threshold ($>50\%$) establishes a significant barrier to entry for large, multi-state corporations. This structural barrier is not merely administrative; it serves a crucial economic purpose by ensuring the tax expenditure is directed toward local small businesses, thereby maximizing the return on investment for the state by funding indigenous economic stimulation. The 2024 tax year data reflects the success of this policy, as all eighteen certified QHTBs were local companies headquartered in Hawaii.5
The mandatory QHTB criteria are summarized below:
Hawaii QHTB Eligibility Criteria (Post-Act 139)
| Requirement | Description | Source/Statute |
| Employee Count | Must be a small business, defined as having no more than 500 employees. | HRS §235-110.91 (as amended by Act 139) 4 |
| Local Activity | Must conduct >50% of its qualified research activities within the State of Hawaii. | HRS §235-110.91 (as amended by Act 139) 4 |
| Federal Prerequisite | Must claim the federal tax credit for increasing research activities under IRC Section 41. | Form N-346 Instructions 4 |
| Registration | Must be registered to do business in Hawaii. | HRS §235-110.91 4 |
IV. DBEDT’s Administrative Role: The Certification of Credits
The Department of Business, Economic Development, and Tourism (DBEDT) holds the authoritative role in certifying the credit, an essential step prior to filing the tax return with DOTax.
4.1. Certification Mechanism and Form N-346A
The certification process formally validates the QHTB’s status and verifies the accuracy of the calculated credit amount.2 The QHTB must submit the required information to DBEDT, primarily through Form N-346A, which details the qualified expenditures and the resulting credit claimed during the taxable year.2 Upon approval, DBEDT issues a signed Part II of Form N-346A, which is the official certificate verifying the maximum amount of credit that may be claimed.2 This certificate is mandatory and must be attached to the final Hawaii income tax return.4
4.2. The $5 Million Annual Aggregate Cap: The Scarcity Principle
The State of Hawaii imposes a critical constraint on the TCRA: the total certified tax credits are limited to $5,000,000 in the aggregate for all taxpayers in every taxable year.4 This limitation introduces a scarcity principle that heavily influences the compliance strategy.
Historically, before Act 139 mandated the incremental calculation, the program was severely oversubscribed. Data from 2020 through 2023 shows that 17 to 30 QHTBs were not certified each year because the total claimed credits exceeded the $5 million cap.5 However, the shift to incremental calculation drastically changed the landscape. In the 2024 tax year, the total amount certified only reached $2.6 million, meaning the cap was not exhausted, and all 18 qualified applicants received their certificates.5 While this suggests a temporary reduction in administrative competition, the cap remains a statutory constraint. If research spending or QHTB participation increases, the risk of cap exhaustion will return, underscoring the enduring importance of rapid administrative filing.
4.3. The First-Come, First-Served Filing Mandate
To manage the aggregate cap, DBEDT explicitly reviews and certifies credit claims on a first-come, first-served basis.3 This administrative rule transforms the statutory deadline into a functional race.
Businesses must submit their Form N-346A via DBEDT’s online portal when it opens (typically in early March, such as March 3, 9 a.m. Hawaii Time).10 In previous highly competitive years, the $5 million maximum was reached almost immediately upon the portal’s opening.9 Therefore, the strategic submission window—the precise hour the portal opens—becomes the actual deadline that determines a company’s ability to secure the credit, effectively overriding the statutory deadline of March 31 for the initial filing.3 Preparing all required documentation and ensuring immediate electronic submission is paramount for maximizing the chance of certification.
4.4. The Mandatory Annual Survey and Compliance Waiver
A critical and often overlooked component of ongoing compliance is the mandatory annual economic impact survey prescribed by DBEDT.4 The QHTB must complete this survey by June 30th following the taxable year in which the research was conducted.8
Statutory requirements are explicit: failure to complete and submit this questionnaire by the June 30th deadline constitutes a formal waiver of the right to claim the credit.4 This means that even if a QHTB successfully secured certification (a signed N-346A) in March and filed their tax return with DOTax, subsequent failure to complete the mandatory economic survey will result in the forfeiture of the credit. This compliance tripwire highlights the legislative intent to tie the tax incentive directly to measurable economic impact data (such as high wages and patent activity reported in the 2024 data).5
The following table summarizes the key administrative checkpoints, emphasizing the importance of non-tax deadlines:
Critical Administrative Deadlines for TCRA Certification (Based on FYE Dec 31)
| Action | Agency | Deadline/Timing | Strategic Note |
| DBEDT Application Portal Opens | DBEDT | Early March (e.g., March 3, 9 a.m. HI Time) | Crucial for securing credit due to first-come, first-served cap allocation 10 |
| Statutory Filing Deadline (Form N-346A) | DBEDT | Before March 31 of the year following the taxable year | Statutory deadline for initial certification filing 3 |
| Mandatory Annual Survey Completion | DBEDT | June 30 following the taxable year | Mandatory compliance step; failure waives the credit 8 |
| Final Claim Submission (Form N-346) | DOTax | 12 months after the close of the taxable year | Final deadline for tax return filing and credit claim (including amendments) 4 |
V. DOTax Compliance: Claiming the Certified Credit
Once the credit amount is certified by DBEDT, the process shifts to the Department of Taxation (DOTax) for inclusion in the official income tax return. The deadline to claim the credit, including amended claims, is generally 12 months after the close of the taxable year.3
5.1. Required Forms and Attachments
The taxpayer claiming the credit must attach a comprehensive set of documents to their Hawaii income tax return (e.g., Form N-11 for individuals, N-35 for S corporations).4 Failure to attach the certified N-346A and the other required forms will result in the denial of the credit claim by DOTax.4
Required Forms Checklist for Hawaii TCRA Claim Submission
| Form Name | Purpose | Required Attachment? | Issued By |
| Form N-346 | Figure and claim the calculated Hawaii TCRA (HRS §235-110.91) | Yes, attached to state return | Taxpayer 4 |
| Form N-346A (Certified) | Part II, signed by DBEDT, verifying the certified amount of credit | Yes, attached to state return | DBEDT (upon approval) 2 |
| Federal Form 6765 | Calculation of the Federal R&D Credit (IRC §41) | Yes, copy must be attached | Taxpayer (Federal) 11 |
| Schedule K-1s | Allocation of credit to owners (if flow-through entity) | Yes, for taxpayers claiming a pro rata share | Flow-through Entity 4 |
5.2. Flow-Through Entity (PTE) Allocation and Reporting
The structure of the TCRA accommodates flow-through entities, such as partnerships, S corporations, estates, trusts, or cooperatives.4 These entities, which do not pay income tax at the entity level, must still fulfill the documentary requirements. The flow-through entity itself must attach Forms N-346, the certified N-346A, and Federal Form 6765 to its informational return.4
The credit is then allocated pro rata to the partners, shareholders, beneficiaries, or patrons.2 Individual taxpayers receiving this credit must then attach a copy of their corresponding Schedule K-1, detailing their pro rata share of the credit, to their personal Hawaii income tax return to effectuate the final claim.4
5.3. Record Retention and Substantiation Requirements
The ultimate defense of the credit rests on robust internal documentation, particularly for audit purposes by DOTax. Taxpayers must maintain detailed business records that demonstrate that the research was performed in a systematic manner, covering the scope, execution, and outcomes of the experimental activities.11
Specific documentation that should be retained includes meeting notes, progress reports, conceptual sketches, technical drawings, testing protocols, and records of analysis from trials.11 The Department of Taxation has issued specific interpretive guidance in the past, such as Tax Information Release (TIR) 2008-04, which clarified the eligibility of certain prototype costs for inclusion in QREs under HRS §235-110.91.12
Given that wage expenses account for over 80% of the QREs claimed by QHTBs 5, it is anticipated that DOTax audits focus intensely on payroll records and time tracking systems. Auditors would seek to confirm that the claimed QREs meet the “substantially all” standard, verifying that the highly paid research personnel (whose weighted average wage was approximately $117,972 in 2024) 5 allocated their time directly to qualified research, supervision, or support. Diligent time tracking and clear job descriptions are essential mitigating factors against audit risk.
VI. TCRA Calculation Mechanics (Post-Act 139)
The calculation of the Hawaii TCRA underwent a fundamental transformation with the passage of Act 139, moving away from a total expense method to an incremental method tethered to the federal system.
6.1. The Incremental Calculation Reinstatement
For taxable years starting after December 31, 2023, the calculation of the credit must adhere strictly to the federal methodology under IRC Section 41.4 This requires taxpayers to determine their federal credit based on the increase in QREs above a calculated historical base amount. By repealing the previous provision that allowed credits for all qualified research expenses without regard to previous years’ expenses, the state now ensures its tax incentive program rewards only increasing levels of research investment within the state.4
6.2. The Proration Formula
Once the federal credit amount is determined (from Federal Form 6765), the Hawaii TCRA is calculated as a pro rata share. This proration mechanism ensures the state only grants credit corresponding to the research physically conducted within Hawaii.9
The calculation involves multiplying the eligible federal tax credit by a fraction 4:
$$\text{Hawaii TCRA} = \text{Federal Tax Credit} \times \frac{\text{HI QREs}}{\text{Total Federal QREs}}$$
The numerator represents the amount of eligible research expenses conducted in Hawaii, and the denominator is the total amount of expenses eligible for the federal credit.4
6.3. Refundability Feature
A primary draw of the Hawaii TCRA is its refundability.3 Any portion of the certified credit that exceeds the taxpayer’s Hawaii income tax liability is returned directly to the QHTB or its owners as a cash payment. This feature provides immediate capital, unlike non-refundable credits that only offset tax due and may require carryforward if unused.3
VII. Practical Application: A Case Study in Certification and Claiming
This case study illustrates the calculation and, more critically, the timing required to successfully secure the Certification of Credits under the post-Act 139 regime.
7.1. Company Profile and Initial Calculation
Pono Software Development, Inc. (Pono) is a C-Corporation QHTB that operates exclusively in the high-tech sector, focusing on computer software development (a popular area of research in Hawaii).5 Pono has 45 employees and conducts 80% of its qualified research activities locally, meeting the stringent QHTB criteria.4
- 2024 Tax Year Data:
- Total Federal QREs: $1,500,000
- Hawaii QREs: $1,200,000
- Federal Form 6765 Result (Incremental Calculation): $90,000 Federal Credit
- Hawaii Gross TCRA Calculation:
- Proration Ratio: $\frac{\$1,200,000}{\$1,500,000} = 80\%$
- Gross Hawaii TCRA: $\$90,000 \times 80\% = \$72,000$
7.2. Navigating the DBEDT Certification Hurdle
Pono’s maximum potential credit claim is $72,000. To realize this claim, Pono must obtain certification from DBEDT. Recognizing the first-come, first-served nature of the $5 million annual cap, Pono cannot rely on the statutory March 31 deadline.
Pono’s strategic team must prepare and submit its completed Form N-346A electronically immediately when the online portal opens (e.g., March 3, 9:00 AM HI time).10
- Scenario Outcome: Pono successfully submits its claim at 9:01 AM on March 3rd. DBEDT verifies Pono’s QHTB status and the calculated credit, issuing a signed N-346A certifying the full $72,000. In the 2024 tax year, since the cap was not exhausted 5, Pono secured the certification effectively because of its preparation and timeliness.
7.3. Final DOTax Claim Submission
Pono must now attach the required documentation to its Hawaii corporate income tax return (Form N-30) by the deadline (12 months after the close of the taxable year).4
Pono must ensure the following package is included with the return 4:
- Hawaii Form N-346 (claiming the $72,000 certified credit).
- The certified Form N-346A (signed by DBEDT).
- A copy of the Federal Form 6765.
7.4. Compliance Maintenance Tripwire
The process is not complete upon filing the tax return. Pono must subsequently ensure that it completes the mandatory annual DBEDT economic survey before the June 30th deadline of the following year. Failure to submit this survey, even with the certified N-346A already filed, legally waives Pono’s right to the $72,000 tax credit.4
VIII. Conclusion: Strategic Implications for Hawaii’s Innovators
The Hawaii Tax Credit for Research Activities (TCRA) remains a crucial incentive, extended through 2029 and specifically aimed at supporting high-wage, high-technology small businesses.4 However, claiming this refundable credit is fundamentally dependent on securing the DBEDT Certification of Credits via Form N-346A.
Strategic compliance requires a dual focus: technical accuracy and administrative agility. The return to the incremental calculation methodology following Act 139 mandates that QHTBs must maintain detailed records of historical research expenditures, mirroring the rigorous standards of the federal IRC §41.4 While this change has lowered the average claim size, potentially reducing competition for the $5 million aggregate cap, the “first-come, first-served” rule ensures that early preparation and immediate submission remain paramount.9 The submission time is, in effect, the actual deadline that determines access to the limited funds.
Furthermore, QHTBs must prioritize continuous administrative compliance, particularly satisfying the mandatory June 30th economic survey requirement, as failure to do so legally negates the entire certified credit.8 The detailed data collected through this survey, emphasizing research wages and patent activity, provides the essential justification for the legislature to maintain and extend the refundable credit program in the future.5 Ultimately, the success of a TCRA claim relies equally on comprehensive record-keeping for the Department of Taxation and swift, punctual engagement with the Department of Business, Economic Development, and Tourism.
What is the R&D Tax Credit?
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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