Hawaii: Will Execution Requirements
The short answer
To sign a valid witnessed will in Hawaii you must be at least 18 and of sound mind, put the will in writing, sign it (or have someone sign for you in your conscious presence and at your direction), and have at least two witnesses who each sign within a reasonable time after watching you sign or hearing you acknowledge the will. Notarization is not required. Hawaii also recognizes a handwritten (holographic) will — valid with no witnesses if the signature and material portions are in your own handwriting — and, unusually, has a harmless-error rule that can save a will that missed a formality if there is clear and convincing evidence you meant it as your will. Hawaii does not allow electronic wills.
Ask Ezel about your situation
This is the general rule in Hawaii. Ezel applies current Hawaii law to your specific facts and answers with citations to the statutes.
| Governing law | Hawaii Uniform Probate Code, HRS Chapter 560, Article II, Part 5. The core execution statute is § 560:2-502; § 560:2-501 sets who may make a will, § 560:2-503 is the harmless-error provision, § 560:2-504 the self-proving affidavit, and § 560:2-505 who may witness. Hawaii adopted the modern Uniform Probate Code, so it recognizes holographic wills, uses the 'reasonable time' witnessing rule, and has a harmless-error escape hatch. It has NOT adopted electronic wills |
|---|---|
| Minimum age & capacity | Any individual 18 or older who is of sound mind may make a will (§ 560:2-501). There is no emancipated-minor exception. 'Sound mind' is not defined by statute; Hawaii case law supplies the test — the testator must know the nature and extent of their estate, know the beneficiaries and their relationship (the natural objects of their bounty), and understand the disposition they are making. Capacity is measured at the time of signing |
| Writing & signature | Must be in writing and 'signed by the testator or in the testator's name by some other individual in the testator's conscious presence and by the testator's direction' (§ 560:2-502(a)). If you cannot sign, another person may sign for you, but only in your conscious presence (you must be aware it is happening) and at your direction. There is no signature-at-the-end rule |
| Witnesses required | At least two witnesses under the modern Uniform Probate Code rule: each witness must sign 'within a reasonable time after' witnessing either the signing of the will or the testator's acknowledgment of the signature or of the will (§ 560:2-502(a)(3)). The witnesses need not be present at the same time, and a witness may sign somewhat later. A witness need only be 'generally competent' (§ 560:2-505(a)). Interested witness: signing by an interested witness 'does not invalidate the will or any provision of it, including any gift' — the modern no-effect rule (§ 560:2-505(b)) |
| Notarization & self-proving | Notarization is NOT required to sign a will — a notary is not a witness. A self-proving affidavit is available under § 560:2-504, executed with the will or later before an officer authorized to administer oaths, letting the will be admitted without live witness testimony. Hawaii adds that a signature on the self-proving affidavit counts as a signature on the will itself if needed to prove due execution (§ 560:2-504(c)) |
| Handwritten (holographic) wills | Yes. A will is valid as a holographic will, with or without witnesses, 'if the signature and material portions of the document are in the testator's handwriting' (§ 560:2-502(b)). Only the signature and the material (dispositive) provisions must be handwritten; preprinted or typed portions are allowed, and intent may be shown by extrinsic evidence, including the non-handwritten parts (§ 560:2-502(c)). There is no date requirement |
| Electronic & remote wills | Not permitted. Hawaii has not enacted the Uniform Electronic Wills Act or any electronic-wills statute; § 560:2-502 requires a physically signed writing witnessed by two people. A will signed or witnessed only electronically or over video is not a valid Hawaii will — though a fully handwritten one may qualify as a holographic will, and Hawaii's harmless-error rule can sometimes save a nonconforming document |
| Harmless-error / curative doctrine | Yes. Under § 560:2-503, a document not executed in compliance with § 560:2-502 is still treated as validly executed if its proponent proves 'by clear and convincing evidence' that the decedent intended it as their will (or as a revocation, alteration, or revival of a will). This is a genuine escape hatch for a will that missed an execution formality, though the clear-and-convincing standard is demanding, and there must still be a document or writing |
Compare this rule across all 50 states + DC →
Requirements one by one
Governing law
Hawaii's will-execution rules are in the Hawaii Uniform Probate Code, HRS Chapter 560,
Article II, Part 5. The core statute is § 560:2-502 (writing, signature, two witnesses);
§ 560:2-501 says who may make a will; § 560:2-503 is the harmless-error provision; § 560:2-504
provides the self-proving affidavit; and § 560:2-505 covers who may witness and the
interested-witness rule. Hawaii adopted the modern Uniform Probate Code in 1996, which gives
it three features many states lack together: holographic wills, a relaxed "reasonable time"
witnessing rule, and a harmless-error escape hatch. Hawaii has not, however, adopted
electronic wills.
Minimum age & capacity
"An individual eighteen or more years of age who is of sound mind may make a will"
(§ 560:2-501). You must be at least 18 — there is no emancipated-minor exception — and of
sound mind. The statute does not define "sound mind"; Hawaii courts apply the familiar test:
you must know the nature and extent of your estate, know your beneficiaries and how they
relate to you (the natural objects of your bounty), and understand the disposition you are
making, as a rational plan. Capacity is judged at the moment of signing.
Writing & signature
A Hawaii will must be in writing and "signed by the testator or in the testator's name by
some other individual in the testator's conscious presence and by the testator's direction"
(§ 560:2-502(a)). If you cannot sign yourself, someone may sign for you — but only in your
conscious presence, meaning you are aware it is happening, and at your direction. (If you were
asleep, the conscious-presence requirement would not be met.) There is no rule that the
signature appear at the end of the document.
Witnesses required
A Hawaii will needs at least two witnesses, and Hawaii uses the modern Uniform Probate Code
timing rule: each witness must sign "within a reasonable time after" witnessing either the
signing of the will or the testator's acknowledgment of the signature or of the will
(§ 560:2-502(a)(3)). Two things follow. First, the witnesses do not have to be present at the
same time — Hawaii does not use the stricter "present at the same time" rule some states
impose. Second, a witness can sign a little later, so long as it is within a reasonable time
after witnessing. A witness need only be "generally competent" (§ 560:2-505(a)).
On interested witnesses, Hawaii uses the modern no-effect rule: "The signing of a will by an
interested witness does not invalidate the will or any provision of it, including any gift to
or appointment of the witness" (§ 560:2-505(b)). A beneficiary who also serves as a witness
keeps the gift, and the will stands. Using disinterested witnesses is still good practice
because it removes an argument for undue influence, but it is not required for validity.
Notarization & self-proving
A Hawaii will does not have to be notarized to be valid — a notary is not one of the two
required witnesses. What a notary supports is the self-proving affidavit under § 560:2-504,
which the testator and witnesses may sign with the will or later before an officer authorized
to administer oaths. A self-proved will can be admitted to probate without bringing the
witnesses back to testify. Hawaii adds a useful backstop: a signature on the self-proving
affidavit "is considered a signature affixed to the will, if necessary to prove the will's due
execution" (§ 560:2-504(c)), so an affidavit signature can shore up a will whose signing is
questioned.
Handwritten (holographic) wills
Hawaii recognizes holographic wills. Under § 560:2-502(b), a will is valid "whether or not
witnessed, if the signature and material portions of the document are in the testator's
handwriting." Only the signature and the material (dispositive) provisions must be in your own
hand; preprinted or typed portions are allowed, and § 560:2-502(c) lets a court use extrinsic
evidence — including the non-handwritten parts — to establish that you intended the document as
your will. There is no date requirement, though dating a handwritten will is still sensible.
Electronic & remote wills
Hawaii does not permit electronic wills. It has not enacted the Uniform Electronic Wills Act or
any electronic-wills statute, so § 560:2-502's requirement of a physically signed writing
witnessed by two people still controls. A will that exists only as a computer file, that was
"signed" by typing a name, or that was witnessed only over video is not a valid Hawaii will.
Two Hawaii features can still help when a signing goes wrong, though: a fully handwritten
document may qualify as a holographic will, and the harmless-error rule below can sometimes
rescue a nonconforming document.
Harmless-error / curative doctrine
Hawaii has a harmless-error rule — one of the reasons its law is comparatively forgiving. Under
§ 560:2-503, a document not executed in compliance with § 560:2-502 is nonetheless "treated as
if it had been executed in compliance" if the proponent establishes "by clear and convincing
evidence" that the decedent intended it as their will (or as a revocation, alteration, or
revival of a will). That can save a will that missed a formality — for example, one signed by
only one witness. But the clear-and-convincing standard is demanding, there must still be a
document or writing, and relying on it means a contested, expensive probate. Meeting the
ordinary formalities is far safer.
What trips people up
"Reasonable time" is a safety net, not a plan. Hawaii lets a witness sign within a
reasonable time after watching you sign or hearing your acknowledgment (§ 560:2-502(a)(3)),
but the cleanest practice is still to have both witnesses watch you sign and sign right then.
Stretching the timing invites a fight over what was "reasonable."
Notarizing a will is not the same as witnessing it. Taking a typed will to a notary does
not satisfy § 560:2-502, which requires two witnesses. Notarization matters only for the
self-proving affidavit under § 560:2-504 (which, in Hawaii, can also back up the will's
signature if execution is questioned).
Harmless error is a last resort, not a shortcut. Section 560:2-503 can rescue a defective
will, but only with clear and convincing evidence of intent, and only after a contested
proceeding. Do not rely on it as a substitute for signing correctly.
A handwritten will still needs the key terms in your hand. A holographic will requires the
signature and the material provisions to be handwritten (§ 560:2-502(b)). A typed will you
merely sign is not a holographic will — it has to meet the ordinary witnessing rules instead.
Common questions
Does my Hawaii will have to be notarized? No. Hawaii requires two witnesses, not a notary
(§ 560:2-502). Notarization only supports the optional self-proving affidavit under
§ 560:2-504, which makes probate easier but is not required for validity.
Can I handwrite my own will without witnesses? Yes. Hawaii recognizes holographic wills: if
your signature and the material provisions are in your own handwriting, the will is valid with
no witnesses (§ 560:2-502(b)). There is no date requirement, but keep the gifts clear.
What happens if only one person witnessed my will? Ordinarily that fails the two-witness
rule, but Hawaii's harmless-error statute (§ 560:2-503) can still save it if there is clear and
convincing evidence you intended the document as your will. That is an uphill, costly fight —
use two witnesses.
Can I sign my Hawaii will online or over video? No. Hawaii has not adopted electronic
wills, so a will must be a physical signed writing witnessed in person by two people
(§ 560:2-502). Signing electronically or witnessing by video does not make a valid Hawaii will.
Statutes and sources
- Haw. Rev. Stat. § 560:2-501 — who may make a will: any individual 18 or older of sound mind.
https://www.capitol.hawaii.gov/hrscurrent/Vol12_Ch0501-0588/HRS0560/HRS_0560-0002-0501.htm (accessed 2026-07-11) - Haw. Rev. Stat. § 560:2-502 — execution: writing, signature (or a proxy in the testator's conscious presence), two witnesses signing within a reasonable time; holographic wills; intent by extrinsic evidence.
https://www.capitol.hawaii.gov/hrscurrent/Vol12_Ch0501-0588/HRS0560/HRS_0560-0002-0502.htm (accessed 2026-07-11) - Haw. Rev. Stat. § 560:2-503 — harmless error: a noncompliant document is treated as a valid will on clear and convincing evidence of the decedent's intent.
https://www.capitol.hawaii.gov/hrscurrent/Vol12_Ch0501-0588/HRS0560/HRS_0560-0002-0503.htm (accessed 2026-07-11) - Haw. Rev. Stat. § 560:2-504 — self-proving affidavit; a signature on the affidavit counts as a signature on the will if needed to prove due execution.
https://www.capitol.hawaii.gov/hrscurrent/Vol12_Ch0501-0588/HRS0560/HRS_0560-0002-0504.htm (accessed 2026-07-11) - Haw. Rev. Stat. § 560:2-505 — who may witness (generally competent); an interested witness does not invalidate the will or lose the gift.
https://www.capitol.hawaii.gov/hrscurrent/Vol12_Ch0501-0588/HRS0560/HRS_0560-0002-0505.htm (accessed 2026-07-11)
Source links
Every statute quoted above, linked, with the date we checked it.
Get the answer for your situation
You just read how Hawaii handles this in general. Ezel applies current Hawaii law to your facts and answers your specific question, with citations.
Opens in Ezel Pro. Every answer cites the authority it relies on.