Montana: Inheritance Disclaimer and Renunciation Requirements
The short answer
Montana permits an adult beneficiary to disclaim all or part of an interest or power through a signed writing or other retrievable record that declares the disclaimer, describes the interest or power, and follows the asset-specific delivery or filing route. Current Montana law has no fixed ordinary state-law deadline, but a written waiver, acceptance, transfer conduct, judicial sale, or another-law limit can bar the disclaimer before it becomes effective; the federal qualified-disclaimer nine-month rule is separate. Real-property recording is generally optional, except that a disclaimer of real property under an already irrevocable beneficiary designation must be recorded with the county recorder.
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This is the general rule in Montana. Ask about your specific facts and see which parts of current Montana law apply, with citations to the statutes.
| Governing law and covered interests | Mont. Code Ann. §§ 72-2-817 to -833, Uniform Disclaimer of Property Interests Act; any interest in or power over property whenever created, with routes for will/intestacy, trusts, beneficiary designations, survivorship property, and powers of appointment (§§ 72-2-817, -819) |
|---|---|
| Whole, partial, and conditional disclaimer | Whole or partial; partial form may use a fraction, percentage, monetary amount, term of years, power limitation, or another interest/estate. The Act does not expressly authorize a conditional disclaimer (§ 72-2-821(1), (4)) |
| Writing or record and required contents | Writing or other tangible/electronic retrievable record that declares the disclaimer and describes the interest or power; no original, tax statement, or legal description in the general contents rule (§ 72-2-821(3)) |
| Signature, witnesses, acknowledgment, and notary | Signed by the person making the disclaimer, including a qualifying electronic signature; no witness, acknowledgment, oath, or notarization stated in the validity rule (§ 72-2-821(3)) |
| State deadline, irrevocability, and federal-tax overlay | No fixed ordinary state deadline; pre-effectiveness bars apply. Irrevocable at the later of required delivery/filing and statutory effectiveness. Federal 9-month tax-qualified rule remains separate (§§ 72-2-821(5), -829, -830; 26 U.S.C. § 2518) |
| Delivery, filing, and recipient | Personal delivery, first-class mail, or another method likely to result in receipt; recipient varies among personal representative, trustee, settlor/transferor, distribution obligor, successor taker, or power holder/fiduciary, with court fallbacks (§ 72-2-828) |
| Real-property recording and notice | Generally optional when the underlying instrument may/must be recorded; omission preserves between-party validity. Mandatory county-recorder filing for real property from an already irrevocable beneficiary designation (§§ 72-2-828(7)(b), -831) |
| Acceptance, transfer, insolvency, and creditor bars | Written waiver; pre-effectiveness acceptance, voluntary assignment/conveyance/encumbrance/pledge/transfer or contract; judicial sale; and any other-law limit. Barred interest disclaimer operates as a transfer to the same statutory takers; no express insolvency/general creditor bar (§ 72-2-829) |
| Effective date and destination | Effective when the creating instrument becomes irrevocable or at intestate death; instrument controls first, otherwise individual treated as dying immediately before distribution, subject to descendant, estate-destination, remarried-spouse, and future-interest rules (§ 72-2-822) |
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Requirements one by one
Governing law and covered interests
Montana's current Uniform Disclaimer of Property Interests Act begins at MCA
§ 72-2-817 and runs through § 72-2-833. MCA § 72-2-819 applies it to any interest in or
power over property, whenever created. The delivery provision separately addresses
wills and intestacy, testamentary and inter vivos trusts, beneficiary designations,
jointly held property, and powers of appointment.
Whole, partial, and conditional disclaimer
Section 72-2-821(1) allows a disclaimer in whole or part, even if a spendthrift or
similar restriction attempts to limit transfer or disclaimer. A partial disclaimer
may use a fraction, percentage, dollar amount, term of years, limitation of a power,
or another interest or estate. The current Act does not separately authorize a
conditional form.
Writing or other record and required contents
The disclaimer may be a writing or another record stored on a tangible, electronic,
or other medium and retrievable in perceivable form. It must declare the disclaimer,
describe the interest or power, and be signed. Section 72-2-821(3) does not require an
original, legal description, affidavit, or tax recital as part of the general contents
rule.
Signature and other execution formalities
The person making the disclaimer must sign it. Section 72-2-821 defines signing to
include a tangible symbol or an electronic sound, symbol, or process attached or
logically associated with the record with present intent to authenticate or adopt it.
The general validity rule states no witness, acknowledgment, oath, or notarization
requirement.
State timing, irrevocability, and federal tax
The current Act has no fixed ordinary state-law deadline. Instead, § 72-2-829 bars or
limits the route when a listed event occurs before effectiveness or another law
supplies a limit. Under § 72-2-821(5), the disclaimer becomes irrevocable at the later
of delivery or filing and statutory effectiveness for the relevant interest.
Section 72-2-830 recognizes a disclaimer or transfer treated under federal tax law as
never transferred to the disclaimant. Federal qualification remains separate:
26 U.S.C. § 2518(b) supplies a nine-month receipt deadline, nonacceptance condition,
and no-direction rule. The federal tax clock is not Montana's ordinary state deadline.
Delivery, filing, and recipient
Section 72-2-828 allows personal delivery, first-class mail, or another method likely
to result in receipt. The destination depends on the asset:
- A will or intestacy interest goes to the personal representative, with a court-
filing fallback if none serves. - A testamentary-trust interest goes to the trustee, then the personal representative,
with the stated court fallback. - An inter vivos trust interest goes to the trustee or court fallback; before the trust
becomes irrevocable, it goes to the settlor of a revocable trust or the transferor. - Before a beneficiary designation becomes irrevocable, delivery goes to the person
who made it. Afterward, a personal-property disclaimer goes to the distribution
obligor, while a real-property disclaimer uses the recording route below. - A survivorship disclaimer goes to the person who takes because of it.
- Power-of-appointment interests go to the holder or relevant fiduciary, personal
representative, or court fallback described in the section.
Real-property recording
Montana uses a split rule. Section 72-2-831 generally permits recording when the
instrument that transferred the disclaimed interest is required or permitted to be
recorded, and failure ordinarily does not defeat validity between the disclaimant and
successor takers. But § 72-2-828(7)(b) is mandatory for real property created by a
beneficiary designation after that designation becomes irrevocable: record in the
office of the county recorder where the property lies.
Acceptance, transfers, and barred disclaimers
A written waiver bars the disclaimer. Section 72-2-829 also bars an interest
disclaimer if, before effectiveness, the disclaimant accepts the interest; voluntarily
assigns, conveys, encumbers, pledges, transfers, or contracts to transfer it; or a
judicial sale occurs. Another law can also bar or limit the disclaimer. The Act states
no express insolvency or general creditor-claim bar.
A barred disclaimer of an interest operates as a transfer to the people who would have
taken under the Act had the disclaimer not been barred. A barred disclaimer of a power
is ineffective.
Effective time and destination
For an ordinary interest, § 72-2-822 makes the disclaimer effective when the creating
instrument becomes irrevocable or, for intestacy, at death. An express disclaimer-
destination clause in the instrument controls. Without one, an individual generally
is treated as dying immediately before distribution, with special rules for surviving
descendants.
Montana adds a further estate-destination rule: if the interest otherwise would pass
to the disclaimant's estate, it instead moves to surviving descendants by
representation, or, if none, through the transferor's hypothetical intestacy while
excluding the disclaimant and applying the statute's remarried-spouse instruction.
The disclaimant's own future interest does not accelerate.
What trips people up
The former nine-month Montana statute is not current law. The current 2025 MCA
places the general form in § 72-2-821 and the bars in § 72-2-829. Neither provision
sets an ordinary nine-month state deadline. Nine months remains part of the separate
federal qualified-disclaimer rule in 26 U.S.C. § 2518(b).
Not every real-property disclaimer has the same recording rule. General recording
under § 72-2-831 is permissive, but § 72-2-828(7)(b) requires county-recorder filing
for real property under an already irrevocable beneficiary designation.
Common questions
Can I sign electronically? Yes. Section 72-2-821(3) expressly recognizes an
electronic sound, symbol, or process attached or logically associated with the record
when used with present intent to authenticate or adopt it.
Can I use ordinary first-class mail? Yes. Section 72-2-828 permits first-class
mail, but the document must still go to the correct recipient for that asset type.
Statutes and sources
- MCA §§ 72-2-817, 72-2-819, and 72-2-821 — Act title and scope, whole and partial
form, record medium, required contents, electronic signature, irrevocability, and
nontransfer treatment.
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0170/0720-0020-0080-0170.html
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0190/0720-0020-0080-0190.html
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0210/0720-0020-0080-0210.html
(accessed 2026-08-01) - MCA § 72-2-828 — delivery methods, asset-specific recipients, court fallbacks, and
mandatory county recording for real property under an irrevocable beneficiary
designation.
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0280/0720-0020-0080-0280.html
(accessed 2026-08-01) - MCA § 72-2-829 — waiver, acceptance, transfer, judicial-sale, and other-law bars and
transfer treatment for a barred interest disclaimer.
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0290/0720-0020-0080-0290.html
(accessed 2026-08-01) - MCA §§ 72-2-830, 72-2-831 — federal tax-qualified recognition, generally optional
recording, and between-party validity after an omission.
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0300/0720-0020-0080-0300.html
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0310/0720-0020-0080-0310.html
(accessed 2026-08-01) - MCA § 72-2-822 — effective time and destination, including descendant and estate-
destination rules.
https://archive.legmt.gov/bills/mca/title_0720/chapter_0020/part_0080/section_0220/0720-0020-0080-0220.html
(accessed 2026-08-01) - 26 U.S.C. § 2518(b) — separate federal qualified-disclaimer requirements.
https://www.govinfo.gov/content/pkg/USCODE-2024-title26/html/USCODE-2024-title26-subtitleB-chap12-subchapB-sec2518.htm
(accessed 2026-08-01)
Source links
Every statute quoted above, linked, with the date we checked it.
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