Self-Proving Affidavit for Wills Requirements in Kansas

At a glance

Requirements one by one

Availability and governing law

Kansas places execution, self-proof, the statutory affidavit form, and the affidavit's effect together in K.S.A. § 59-606. The same method can self-prove a codicil or a spouse's consent to take under the will. Section 59-2224 supplies the ordinary probate-proof route when the instrument is not uncontested and self-proved.

Who signs or swears

The testator acknowledges and signs, and both attesting witnesses make affidavits and sign. The statutory form has three separate signature lines. Kansas therefore does not use a witness-only statement or allow one witness to self-prove the whole instrument.

When it may be made

The will may be self-proved at execution or at a later date, but the later option exists only during the lifetimes of the testator and the witnesses. It is not a post-death cure.

Kansas adds an important execution-time benefit. If the substantially conforming affidavit is executed when the will is executed, no other witness signatures or separate attestation clause are required. A later affidavit does not retroactively excuse the original will's ordinary signing formalities.

Officer, oath and seal

The participants act before an officer who has both powers: authority to take acknowledgments to deeds of conveyance and authority to administer oaths. The officer must issue a certificate with the official seal affixed. A notary will usually fill this role, but the statute defines the authority functionally.

Required recitals and form

The form need only be substantially followed, but Kansas prescribes a detailed set of facts. The testator declares that the instrument is the will and was made willingly as a free and voluntary act. Each witness states—within the testator's presence and hearing—that the testator declared and executed the will and wanted the witness to sign. The witnesses further state that they signed in one another's and the testator's presence, at the testator's request, and that the testator possessed the rights of majority, was of sound mind, and was under no restraint.

Attachment to the will

The officer's sealed certificate must be attached or annexed to the will. The statutory form identifies the participants as the people whose names are subscribed to the annexed or foregoing instrument. Kansas states no loose-page or electronic logical-association alternative.

Electronic, remote and out-of-state rules

The cited provisions create no electronic-will or remote self-proof procedure. They require a written will, signatures, presence, acknowledgments, affidavits, and an attached or annexed sealed certificate.

Section 59-609 may validate a written, subscribed will executed under Kansas law, the law of the place of execution, or the law of the testator's residence at execution or death. It addresses legal execution, not a blanket rule that a foreign self-proof clause automatically eliminates Kansas probate testimony.

Probate effect and exceptions

An uncontested self-proved will must be admitted without the testimony of any subscribing witness. Kansas then draws the boundary expressly: otherwise the will is treated no differently from a will that is not self-proved. It may be contested, revoked, or amended by codicil in the same fashion.

The affidavit therefore eliminates routine execution testimony; it does not make the will immune from a contest or conclusively establish every substantive validity issue.

If there is no affidavit

Unless the will is both uncontested and self-proved, § 59-2224 calls for the testimony of at least two subscribing witnesses in person, by affidavit, or by deposition. The court may waive that requirement upon a proper showing that the witnesses are unavailable or cannot be located. It may then use other witnesses to prove capacity and due execution and may receive handwriting proof.

What trips people up

Later means while everyone is alive

Kansas allows later self-proof, but only during the lifetimes of the testator and witnesses. A personal representative cannot complete the statutory form after the testator's death.

The execution-time affidavit can carry the witness signatures

When completed during the will ceremony, a substantially conforming affidavit means no other witness signatures or attestation clause are needed. This makes the affidavit part of execution itself, not merely a probate convenience.

Common questions

Can a Kansas will be made self-proving years after it was signed?

Yes, if the testator and both witnesses are still alive and all complete the acknowledgments and affidavits before the authorized officer.

Does a Kansas self-proved will still face a contest?

Yes. Section 59-606 expressly says it may be contested and otherwise is treated no differently from a will that is not self-proved.

Statutes and sources

• K.S.A. § 59-606 — signer set, timing, officer, seal, substantial form, execution-time signature substitution, probate effect, codicils, and spouse consent: official Kansas Revisor text (accessed 2026-08-01)
• K.S.A. § 59-2224 — two-witness ordinary proof and unavailable-witness alternatives: official Kansas Revisor text (accessed 2026-08-01)
• K.S.A. § 59-609 — foreign execution validity: official Kansas Revisor text (accessed 2026-08-01)