State Trust Law Guides

Hawaii Trust Law: What Every Trust Holder Needs to Know

Plain English guide to Hawaii trust requirements, the state estate tax, beneficiary deadlines, and trustee obligations under Hawaii law.

By TrustHelm Team·Published March 15, 2026· Updated July 6, 2026State Trust Law Guides
Scenic view of Hawaii

Hawaii adopted the Uniform Trust Code in 2021, and it took effect on January 1, 2022, which makes Hawaii one of the newest UTC states in the country. It did not adopt the uniform rules as a photocopy. Beneficiary deadlines, remedies for a trustee's breach, and taxes all run on Hawaii's own clock, and a few of the differences are big enough to change what you should do and when.

This guide applies to both revocable and irrevocable trusts in Hawaii.

Where Hawaii trust law lives

Hawaii's trust code is Chapter 554D of the Hawaii Revised Statutes, enacted whole by Act 32 of 2021 and effective January 1, 2022. The official text is published by the Hawaii Legislature at data.capitol.hawaii.gov. Three neighboring chapters matter to trust holders too: Chapter 236E is Hawaii's estate and generation-skipping tax, Chapter 235 covers the income tax that trusts file, and Chapter 560 holds the probate rules, including Hawaii's small-estate shortcut.

One transition note before anything else. Because the code is new, some of its rules apply prospectively. The default presumption that a trust is revocable, for example, applies to trusts created after the code took effect, and some of the notice duties carry a similar carve-out for trusts that predate 2022. If your trust was signed before 2022, the document itself and the older rules may control on a few points, so read the trust first and ask an attorney where it is unclear.

Accounting and notice requirements

Hawaii keeps the UTC's core information duties, with sixty-day clocks. Within sixty days of accepting the job, a trustee must notify the qualified beneficiaries of the acceptance and provide contact information. Within sixty days of learning that an irrevocable trust exists, or that a revocable trust has become irrevocable, which usually happens at the settlor's death, the trustee must tell the beneficiaries the trust exists, identify the settlor, and explain their right to request a copy of the trust and their right to reports.

From there, the trustee owes current beneficiaries a report at least annually covering the trust's property, liabilities, receipts, and disbursements. If you are a beneficiary and a year has gone by in silence, Hawaii law is on your side when you ask for an accounting. If you are a trustee, the calendar is not optional, and the sixty-day windows start whether or not you feel ready.

Trustee duties

The fundamentals are the ones you would expect, stated in Chapter 554D. A Hawaii trustee owes loyalty to the beneficiaries, must administer the trust prudently, and may incur only costs that are reasonable. A trustee who was chosen for special skills is held to those skills. A trustee may resign on at least thirty days' written notice to the right people, and someone named as trustee who never accepts the role is treated as having declined it.

Two provisions deserve special attention. First, a trustee who is also a beneficiary can make discretionary distributions for their own benefit only under an ascertainable standard, which is the law's way of keeping self-dealing on a leash. Second, Hawaii lets a trustee hand banks and other institutions a short certification of trust instead of the entire trust document, which protects your privacy while still proving the trustee's authority.

Trustee compensation

Your trust document controls first. Where it is silent, Hawaii's trust code points to the state's statutory fee provisions, sections 607-18 and 607-20 of the Hawaii Revised Statutes, rather than leaving compensation entirely to a general reasonableness standard. If compensation matters in your situation, read the fee statute alongside the trust document, and get advice before agreeing to a number.

What makes Hawaii different

  • Hawaii has its own estate tax, and its exclusion is frozen well below the federal one. Hawaii's exclusion is tied to the federal figure as it stood in December 2017, which is $5,490,000, and a 2025 bill to change it had not passed as of mid-2026. The federal exclusion is now far higher, so an estate can owe Hawaii estate tax while owing nothing federally. The Hawaii return is due nine months after death.
  • Beneficiary deadlines run on Hawaii time. A challenge to a revocable trust's validity must come within the earlier of five years after the settlor's death or ninety days after the trustee sends the beneficiary a copy of the trust with notice of the deadline. When a trust ends, beneficiaries get sixty days to object to the trustee's proposed distribution plan, double the uniform thirty. And a claim against a trustee for breach generally dies one year after the beneficiary receives a report that adequately disclosed it, with an outer three-year limit in other cases. Shorter than you expected is the theme, so beneficiaries should read every report they receive.
  • Punitive damages are expressly on the menu. Hawaii's remedies section for breach of trust names punitive damages among the relief a court may order, which most states leave unsaid. Trustees should hear that as a reason to document decisions carefully.
  • Small estates skip the waiting period. Personal property worth $100,000 or less can be collected by affidavit, and unlike most states, Hawaii imposes no thirty-day wait before the affidavit can be used.
  • Trust income tax runs on Hawaii's calendar. A trust with enough Hawaii income files Form N-40, due April 20 for calendar-year trusts, a few days after the federal deadline. The filing threshold is $400 of gross income, an automatic six-month extension is available, and rates run up to 11 percent.

TrustHelm tip: TrustHelm tracks Hawaii's notice windows, report duties, and tax deadlines for your specific trust, and shows you the statute behind each one, so none of these dates has to live in your head.

The most common Hawaii trust mistakes

  1. Not funding the trust. A trust only governs what it owns. Homes, accounts, and other assets have to be retitled into it, and unfunded trusts are the most common estate planning failure we see in every state, Hawaii included.
  2. Assuming a revocable trust hides assets from creditors. It does not. After the settlor dies, Hawaii law reaches revocable trust assets for the settlor's debts and estate expenses to the extent the probate estate cannot cover them.
  3. Missing the sixty-day notices after taking over as trustee. New trustees often spend their first months on logistics and forget that the notice clocks started at acceptance.
  4. Ignoring the Hawaii estate tax because the federal exemption feels comfortable. With Hawaii's exclusion frozen at $5,490,000, plenty of families owe Hawaii while owing nothing federally, and nine months arrives quickly.
  5. Sitting on a trustee's report. Because the one-year limitation can start when a report adequately discloses a problem, filing reports away unread can quietly cost a beneficiary their claim.

When to talk to an attorney

Bring in a Hawaii attorney when you are stepping into the trustee role and the notice clocks are running, when a beneficiary dispute or a distribution objection is brewing, when the estate is anywhere near the $5,490,000 exclusion, when your trust predates 2022 and you are unsure which rules carry over, or whenever the trust document and this page seem to disagree, because the document usually wins. You can find a vetted estate planning attorney through TrustHelm's Find an Attorney tool.

This guide is for educational purposes only and does not constitute legal advice. Consult a qualified attorney for decisions about your trust.

TT

Written by

TrustHelm Team

TrustHelm

The TrustHelm team creates plain-language guides to help families understand and manage their trusts. Our content is informed by real experiences with trust administration and reviewed for accuracy.

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