HB2329 - Conformity to the Internal Revenue Code
Summary
Hawaii House Bill HB2329 passed the Senate and House, conforming state income, estate, and generation-skipping transfer tax laws to the Internal Revenue Code of 1986 as amended through December 31, 2025. The bill was sponsored by Representative Nadine Nakamura and passed the Senate Ways and Means Committee with a 12-0 vote. Taxpayers, estate planners, and tax professionals in Hawaii must ensure compliance with updated IRC provisions for 2025 tax filings.
What changed
Hawaii HB2329 enacts comprehensive tax conformity legislation, updating Hawaii Revised Statutes to reference the Internal Revenue Code as amended through December 31, 2025. This affects income tax provisions, estate tax calculations, and generation-skipping transfer tax rules for Hawaii taxpayers. The bill passed with bipartisan support through the Finance Committee and Senate Ways and Means Committee before final passage.
For affected parties including Hawaii residents, estate planners, and businesses, this conformity bill means federal tax law changes enacted through end of 2025 now apply for state tax purposes. Tax practitioners should review client portfolios for impacts from updated depreciation rules, retirement contribution limits, business deduction provisions, and estate tax exclusion amounts. The bill's passage ensures Hawaii taxpayers can rely on familiar federal tax treatment for state purposes.
What to do next
- Review Hawaii HB2329 to identify which IRC amendments affect your tax situation
- Update tax compliance procedures to reflect IRC conformity through December 31, 2025
- Consult with tax professionals regarding estate and generation-skipping transfer tax changes
Source document (simplified)
ChangeBridge / Hawaii / HB2329 Passed HB2329 House Bill Passed 2026-03-10
Relating To Conformity To The Internal Revenue Code.
Conforms Hawaii income and estate and generation-skipping transfer tax laws to the Internal Revenue Code of 1986, as amended as of December 31, 2025. Effective 7/1/3000. (HD1)
Bill Details
State Hawaii
Session 2026 Regular Session
Chamber House
Official Source www.capitol.hawaii.gov/session/measure_ind...
LegiScan View on LegiScan
Sponsors
Nadine Nakamura (Rep - D)
Action History
2026-04-06 S The committee(s) on WAM recommend(s) that the measure be PASSED, WITH AMENDMENTS. The votes in WAM were as follows: 12 Aye(s): Senator(s) Dela Cruz, Moriwaki, DeCoite, Elefante, Hashimoto, Inouye, Kanuha, Kidani, Kim, Richards, Wakai, Fevella; Aye(s) with reservations: none ; 0 No(es): none; and 1 Excused: Senator(s) Lee, C.. 2026-03-30 S The committee(s) on WAM deferred the measure until 04-06-26 10:30AM; Conference Room 211 & Videoconference. 2026-03-27 S The committee(s) on WAM has rescheduled its public hearing to 03-30-26 10:30AM; CR 211 & Videoconference. 2026-03-25 S The committee(s) on WAM has scheduled a public hearing on 03-30-26 10:00AM; CR 211 & Videoconference. 2026-03-12 S Referred to WAM. 2026-03-12 S Passed First Reading. 2026-03-12 S Received from House (Hse. Com. No. 400). 2026-03-10 H Passed Third Reading with none voting aye with reservations; Representative(s) Garcia, Pierick, Shimizu voting no (3) and none excused (0). Transmitted to Senate. 2026-03-06 H Passed Second Reading as amended in HD 1; placed on the calendar for Third Reading with none voting aye with reservations; none voting no (0) and Representative(s) Hashem, Perruso, Quinlan, Sayama excused (4). 2026-03-06 H Reported from FIN (Stand. Com. Rep. No. 1012-26) as amended in HD 1, recommending passage on Second Reading and placement on the calendar for Third Reading. 2026-02-25 H The committee on FIN recommend that the measure be PASSED, WITH AMENDMENTS. The votes were as follows: 16 Ayes: Representative(s) Todd, Takenouchi, Hartsfield, Hussey, Keohokapu-Lee Loy, Kitagawa, Kusch, Lee, M., Miyake, Morikawa, Perruso, Templo, Yamashita, Alcos, Gedeon, Reyes Oda; Ayes with reservations: none; Noes: none; and Excused: none. 2026-02-23 H Bill scheduled to be heard by FIN on Wednesday, 02-25-26 2:00PM in House conference room 308 VIA VIDEOCONFERENCE. 2026-02-02 H Referred to FIN, referral sheet 6 2026-01-28 H Introduced and Pass First Reading. 2026-01-26 H Pending introduction.
Votes
2026-04-06 Senate Ways and Means: Passed, With Amendments Yea: 12 Nay: 0
Committee Referrals
2026-02-02 H Finance 2026-03-12 S Ways and Means
Bill Text Versions
2026-01-29 Introduced 2026-03-06 Amended
Subjects
Conformity to the Internal Revenue Code for 2025 Income Tax Estate and Generation-skipping Transfer Tax Legislative data powered by LegiScan (CC BY 4.0)
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