The Hawaii Tax Credit for Research Activities (HRS §235-110.91) incentivizes qualified high technology businesses (QHTBs) to invest in innovative research conducted within the state, offering a refundable credit against Hawaii income tax, certified by the Department of Business, Economic Development, and Tourism (DBEDT) and claimed with the Department of Taxation. Updated in 2024 by Act 139 (from SB 2497), the credit aligns closely with federal provisions under IRC §41, including the base amount calculation, and supports key sectors like biotechnology, software development, and ocean sciences through 2029.
Eligibility centers on QHTB status, requiring businesses to perform qualified research activities (QRAs) in Hawaii that meet or exceed federal IRC §41 standards, expanded to include state-specific high-tech fields. Certification from DBEDT is mandatory.
Hawaii uses a federal-aligned method, calculating the credit as a pro-rata share of the federal R&D credit based on Hawaii-sourced QREs. Per 2024 updates (Act 139), the federal base amount under IRC §41 applies—only incremental QREs qualify. Only in-state QREs count toward the ratio
Hawaii's R&D credit emphasizes high-tech innovation with strict certification and compliance to allocate the limited cap effectively.
The Hawaii Tax Credit for Research Activities provides a refundable credit equal to the federal R&D credit under IRC §41, pro-rated by the ratio of Hawaii QREs to total federal QREs, for certified QHTBs through 2029.
Qualified research must occur in Hawaii and include IRC §41 activities plus state-specific fields like commercial software design, biotechnology, sensor technologies, ocean sciences, astronomy, or non-fossil energy. Strike Tax verifies eligibility for QHTB status.
Savings equal your federal credit times the Hawaii ratio—e.g., a $200K federal credit with 50% Hawaii QREs yields $100K refundable. Stack with federal for e.g., up to 40% effective relief in maximum cases. Use Strike Tax’s calculator for personalized estimates.
Fully refundable—excess over liability paid as cash refund. No carryforward provision, but refunds process with your return (amendable within 12 months of year-end).
Submit Form N-346A and DBEDT questionnaire March 3–31, 2025, for certification. Attach the approved certificate to Form N-346 with your Hawaii tax return. Strike Tax handles documentation and filing compliance.
Yes, the state credit is a share of the federal credit for the same QREs, allowing full stacking without duplication. Strike Tax optimizes claims across both for maximum refunds.
A QHTB is a Hawaii-registered business with <500 employees conducting >50% of activities in qualified research. Certification required annually; focuses on high-tech sectors like biotech and software.
Application fee waived; base amount under IRC §41 reinstated (per Act 139, 2024). Cap remains $5M first-come; extended through 2029. Survey deadline June 30 unchanged.
Yes, QHTBs must have no more than 500 employees to qualify for certification and credit allocation.
Strike Tax ensures QHTB certification, maximizes your federal-state ratio, and navigates the competitive cap for high-tech firms in astronomy or ocean sciences.
Use our calculator to estimate your potential federal and state benefits
Schedule a consultation to structure your row crop research activities
Connect with us to find out how R&D tax credits can boost your organization’s bottom line.
Hawaii's Tax Credit for Research Activities (§235-110.91) is similar to the federal R&D tax credit provided by IRC § 41, but research activities must be conducted in Hawaii.
Hawaii provides a refundable income tax credit for qualified high technology businesses (QHTBs) with Hawaii research activities subject to an annual cap of $5 million. To comply with this restriction, the Department of Business, Economic Development, and Tourism (DBEDT) shall certify credits on a first-come, first-served basis. With references to the base amount under IRC § 41 no longer applying after 2019, credit for all qualified research expenses may be taken without regard to the amount of expenses for previous years. The credit equals the federal credit claimed on Form 6765 multiplied by the ratio of expenses between Hawaii and the federal total.
Every QHTB claiming the R&D credit shall submit a written, certified statement to the department of business, economic development, and tourism identifying:
(1) Qualified expenditures, if any, expended in the previous taxable year; and
(2) The amount of tax credits claimed pursuant to this section, if any, in the previous taxable year.
The DBEDT will issue a certificate to the taxpayer after reviewing the QRE amounts, the credit amount certified for each taxable year, and the cumulative amount of the tax credit during the credit period. This certificate must be filed with the taxpayer's tax return with the Department of Taxation.
The 2022 Hawaii Form N-346A must be filed by i) March 30, 2023, if you are a calendar year filer or (ii) the day before the last day of the third month following the close of the taxable year, if you are a fiscal year filer. At the time Form N-346A is submitted, a “best estimate” is acceptable if the actual amounts or final numbers are not available. Upon completion, the Department will mail Part II to the QHTB at the address reported on the face of Form N-346A. The taxpayer claiming the credit shall attach the completed Part II of Form N-346A to Form N-346.
Requests for refunds must be completed on or before the end of the 12th month following the close of the taxable year for which the credit may be claimed (i.e. within 1 year).
A “Qualified High Technology Business” means a business that conducts more than 50% of its activities in qualified research, which means:
Learn more about Hawaii's R&D Tax Credit law here or in this Hawaiian government tax pdf. Here you can read frequently asked questions.
R&D Tax Credit Available:
Yes
Eligible Entities:
C-Corporation, S-Corporations, LLCs, Partnerships
Deadline for Tax Filing:
Due with Hawaii Tax Return
Data Required to Compute Credit:
Claim Period Hawaii Qualified R&D Expenses (QREs)
What Information is needed?
Claim Period Federal Qualified R&D Expenses (QREs)
Credit Carryforward:
None - excess is refundable
To get an estimate of the potential value of your unclaimed R&D Tax Credits, try out our credit calculator.

Download our R&D Tax Credit Calculator for Android to see how much you can receive from your qualified R&D tax credit expenses.
The Hawaii Tax Credit for Research Activities provides a refundable credit equal to the federal R&D credit under IRC §41, pro-rated by the ratio of Hawaii QREs to total federal QREs, for certified QHTBs through 2029.
Qualified research must occur in Hawaii and include IRC §41 activities plus state-specific fields like commercial software design, biotechnology, sensor technologies, ocean sciences, astronomy, or non-fossil energy. Strike Tax verifies eligibility for QHTB status.
Savings equal your federal credit times the Hawaii ratio—e.g., a $200K federal credit with 50% Hawaii QREs yields $100K refundable. Stack with federal for e.g., up to 40% effective relief in maximum cases. Use Strike Tax’s calculator for personalized estimates.
Fully refundable—excess over liability paid as cash refund. No carryforward provision, but refunds process with your return (amendable within 12 months of year-end).
Submit Form N-346A and DBEDT questionnaire March 3–31, 2025, for certification. Attach the approved certificate to Form N-346 with your Hawaii tax return. Strike Tax handles documentation and filing compliance.
Yes, the state credit is a share of the federal credit for the same QREs, allowing full stacking without duplication. Strike Tax optimizes claims across both for maximum refunds.
A QHTB is a Hawaii-registered business with <500 employees conducting >50% of activities in qualified research. Certification required annually; focuses on high-tech sectors like biotech and software.
Application fee waived; base amount under IRC §41 reinstated (per Act 139, 2024). Cap remains $5M first-come; extended through 2029. Survey deadline June 30 unchanged.
Yes, QHTBs must have no more than 500 employees to qualify for certification and credit allocation.
Strike Tax ensures QHTB certification, maximizes your federal-state ratio, and navigates the competitive cap for high-tech firms in astronomy or ocean sciences.