Personal Property Memorandum Requirements in Oklahoma

At a glance

Oklahoma uses fixed incorporation

Oklahoma's current Title 84 contains no special statute for a separate, freely updatable tangible-personal-property list. Oklahoma decisions instead recognize the narrower doctrine of incorporation by reference.

Miller v. First National Bank & Trust Co. and Hall v. Jestes state three requirements. The separate document must exist when the will is executed; the will must reasonably identify it; and the reference must show an intent to incorporate it or at least to have it operate with the will in disposing of property at death.

In Hall, the will specifically referred to an attached exhibit containing the testator's distribution instructions. The exhibit predated the will and met all three requirements, so the probate order incorporating it into the will was affirmed. The incorporated paper can therefore supply binding dispositive terms even though Oklahoma has no personal-property-list statute.

Because this is a general incorporation doctrine, Title 84 supplies no special tangible-property definition, excluded-asset list, value ceiling, handwriting condition, signature condition, date condition, or item-and-recipient formula for an ordinary separate list. The legal focus is instead on whether the fixed document existed and was adequately identified by the will.

What trips people up

The incorporated document is fixed when the will is executed. In Richardson v. First National Bank & Trust Co. of Nowata, a trust amendment made after the will was not treated as incorporated by the earlier will. The court explained that a later modification needs the formalities governing execution of a will before it can change the incorporated testamentary terms. Section 101 likewise requires an alteration of a written will or any part of it to use a will-formal writing unless one of the section's stated physical-act routes applies.

Section 301 creates a separate exception for a devise to the trustee of a qualifying trust. For wills of testators dying on or after November 1, 2022, the trust terms may be set out before, with, or after the will, and the trust may be amended later. That statute concerns a devise to a trustee and administration under a trust instrument. It does not create a freely changeable ordinary list of personal-property recipients.

Section 154 says several testamentary instruments executed by the same testator are construed together. It does not remove the incorporation requirements for an extraneous paper that was not itself executed as a testamentary instrument.

Common questions

Must the separate writing be signed, witnessed, handwritten, or dated?

Oklahoma has no memorandum statute imposing independent formalities on the separate paper. The incorporation cases instead ask whether the paper existed when the will was executed, whether the will reasonably identified it, and whether the will showed the required intent. A later binding change must use the applicable will-formal route.

Can the writing be prepared after the will?

Not through the general incorporation route described in Miller and Hall. The document must already exist when the will is executed. Section 301's different timing rule is limited to a qualifying trust pour-over.

Can a new signed list simply say it supersedes the old one?

Not by itself. Richardson treats a later document as outside the earlier incorporation when it did not exist at will execution. A binding replacement must be brought into the testamentary plan through the formal route required by Oklahoma will law, unless a separate statute such as the trust rule in § 301 actually applies.

What happens in probate?

When all incorporation requirements are met, the separate document operates as part of the will. Hall affirmed admission of the will with the incorporated exhibit. If the paper did not exist at execution, is not reasonably identified, or is not referenced with the required intent, it is not incorporated through that will.

Statutes and sources

• Current Title 84 chapter index — the complete wills-and-succession title, including separate chapters for trust additions and electronic estate-planning documents but no personal-property-memorandum chapter. Official Oklahoma Statutes: https://govt.westlaw.com/okjc/Browse/Home/Oklahoma/OfficialOklahomaStatutes?guid=NE9C14D00C76711DB8F04FB3E68C8F4C5 (accessed 2026-08-11).
• 84 O.S. § 101 — formal and physical-act routes for revoking or altering a written will or any part of it. Official Oklahoma Statutes: https://govt.westlaw.com/okjc/Document/NB1F20CD0C8CE11DB8F04FB3E68C8F4C5?viewType=FullText&originationContext=documenttoc&transitionType=CategoryPageItem&contextData=(sc.Default) (accessed 2026-08-11).
• 84 O.S. § 154 — several testamentary instruments executed by the same testator are construed together. Official Oklahoma Statutes: https://govt.westlaw.com/okjc/Document/NB8C3A7D0C8CE11DB8F04FB3E68C8F4C5?viewType=FullText&originationContext=documenttoc&transitionType=CategoryPageItem&contextData=(sc.Default) (accessed 2026-08-11).
• 84 O.S. § 301 — separate statutory rules for devises to qualifying trusts, including later-created and later-amended trust terms. Official Oklahoma Statutes: https://govt.westlaw.com/okjc/Document/NDD10E89016E811ED85BBB4F9F0FDFFBB?viewType=FullText&originationContext=documenttoc&transitionType=DocumentItem&contextData=%28sc.Default%29 (accessed 2026-08-11).
• Miller v. First National Bank & Trust Co., 1981 OK 133, 637 P.2d 75 — existence, reasonable identification, and incorporation intent. https://www.courtlistener.com/opinion/1168602/ (accessed 2026-08-11).
• Hall v. Jestes (In re Estate of Sneed), 1998 OK 8, 953 P.2d 1111 — the three incorporation criteria and probate treatment of the incorporated exhibit. https://www.courtlistener.com/opinion/5335543/ (accessed 2026-08-11).
• Richardson v. First National Bank & Trust Co. of Nowata, 2002 OK CIV APP 69, 50 P.3d 584 — a later document is not incorporated by an earlier will reference, and a binding later modification requires will formalities. https://www.courtlistener.com/opinion/2588247/ (accessed 2026-08-11).