Self-Proving Affidavit
Also called: self-proving will, self-proving clause
Updated June 7, 2026
How it works
At the time the will is signed, the testator and witnesses appear before a notary and swear that all the signing formalities were properly observed. The notary attaches their seal. When the will is later presented for probate, this affidavit stands in for live witness testimony — speeding up the process and removing a potential obstacle if witnesses have moved, died, or become difficult to locate.
State variation
Most states recognize self-proving affidavits, but the specific form and requirements vary. Some states allow the affidavit to be added after the will is initially signed; others require it at the time of execution. An estate planning attorney in your state can confirm the correct procedure.
Related terms
- Executor — An executor is the person named in a will to carry out its instructions — gathering the deceased's assets, paying debts and taxes, and distributing what remains to the beneficiaries. The executor is accountable to the probate court and must act in the interest of the estate, not their own.
- Holographic Will — A holographic will is a will written entirely in the testator's own handwriting and signed by them, with no witnesses required. Holographic wills are recognized as valid in roughly half of U.S. states; in states that do not recognize them, such a document may have no legal effect.
- Codicil — A codicil is a formal written amendment to an existing will. It modifies, adds to, or revokes specific provisions without replacing the entire will. A codicil must meet the same signing and witness requirements as a will to be legally valid.
- Probate — Probate is the court-supervised process of proving a will is valid, settling the deceased's debts and taxes, and distributing what remains to the people entitled to it. It applies whether or not there is a will, and it is overseen by a probate court in the county where the person lived.
- Letters Testamentary — Letters testamentary is a document issued by a probate court that officially authorizes the executor named in a will to act on behalf of the estate — to access accounts, transfer property, and conduct the business of settling the estate. Without it, banks and institutions will not cooperate with an executor.
Legatus Vault keeps your wills, trusts, and estate documents in one secure place and releases them — only when the time comes, and only after careful verification — to the people you choose.