In most states, a notary can also serve as a witness on the same document, but nearly every major notary organization recommends against it, and a handful of states either prohibit the dual role outright or restrict it heavily. Whether you should take on both jobs on a single signing depends on your state’s rules, your relationship to the signer and the transaction, and the type of document in front of you. The safe default is to serve as either the notary or the witness, not both.
First, What Kind of Witness Is Being Asked For?
“Witness” means two different things in notary practice, and the answer to the dual-role question depends on which one someone has in mind.
A document witness, sometimes called a subscribing witness, physically watches the signer put pen to paper and then signs the document to confirm they saw it happen. Wills, some deeds, and certain powers of attorney require this kind of witness.
A credible identifying witness is a different animal entirely. This person personally knows the signer and vouches for the signer’s identity when the signer lacks acceptable photo ID. They function as a human ID card. They don’t need to watch the signing, and their role usually gets recorded in the notary’s journal rather than on the face of the document.
The dual-role concern in this article is about the first type. If someone asks you to “be a witness,” clarify which they mean before agreeing to anything.
When You Clearly Cannot Do Both
Even in states that permit dual service, several circumstances take it off the table.
You Have a Financial or Beneficial Interest
A notary must be a genuinely disinterested party. If you stand to gain money, property, or legal rights from the document, you cannot notarize or witness it. That rules out being named as a beneficiary in a will, receiving proceeds from a real estate transfer, or holding any interest in the transaction beyond your standard statutory notary fee. Receiving compensation above the state-set fee for a particular act can itself be treated as evidence of an improper interest.
You Are Related to the Signer
States that follow the Revised Uniform Law on Notarial Acts generally disqualify a notary when the notary, their spouse, or their civil-union partner is a party named in the document, or when the notary’s spouse, ancestor, descendant, or sibling would receive a direct benefit from the notarization beyond the standard fee. Some states cast a wider net to include parents, grandparents, stepparents, in-laws, or domestic partners. Other states have no explicit family rule but apply a general disqualifying-interest test that can still reach close relatives.
The Witness Signatures Themselves Must Be Notarized
Some documents require the witnesses’ signatures to be notarized. If you sign as a witness on that kind of document and then try to notarize it, you are notarizing your own signature. That is a criminal violation of notary law in every state, with no exceptions.
Your State Prohibits It
At least one state’s secretary of state has formally interpreted its notary statute to prohibit a notary from acting as both witness and notarizing officer on the same document. Many other states are silent on the question. Silence is not permission. When a statute doesn’t address dual service, legality falls to administrative interpretation or common law, and a recording office or probate court can reject the document years later. Before you serve in both roles, check your notary statute and any guidance from your commissioning authority. Don’t rely on what you’ve heard from other notaries or read in generic guides.
Why the Question Keeps Coming Up
Certain high-stakes documents require both a notary seal and separate witness signatures, which is where people start wondering whether one person can fill both slots.
- Wills and self-proving affidavits. Most states require two witnesses to a will’s signing. A self-proving affidavit lets those witnesses swear to the validity of the signing before a notary, eliminating the need to testify in person during probate. This is where the dual-role question comes up most often, and also where it is most dangerous: a probate judge reviewing the will years later may question whether the notary’s signature counts as a valid witness signature, a valid notarization, or neither.
- Real estate deeds. Many states require deeds to be witnessed in addition to being notarized before they can be recorded. Some recording offices accept documents where the notary also served as a witness; others reject them, with no reliable way to predict the outcome.
- Durable powers of attorney. Several states require these to be witnessed and notarized. Some specifically prohibit the notary from also witnessing a power of attorney, particularly if the notary is named as an agent.
Most of these documents call for at least two witnesses. If the notary fills one witness slot, only one additional outside witness is needed. That math only works if your state actually permits the notary to count as a witness. Otherwise you end up with a document that looks complete but is legally deficient.
If You Are Going to Serve in Both Roles
Sometimes you really are the only option. The signer shows up without witnesses, the document has to be executed that day, and no one else is around. If your state allows dual service and you have no disqualifying interest, handle it like this.
Before the Signing
Confirm, in writing if possible, that your state permits dual service. Review the document itself. Verify that separate signature lines exist for witnesses and for the notary’s official capacity. If there’s only one line, the document probably isn’t designed for dual service. Check the witness attestation clause to make sure the language matches what you’ll actually be observing. If it’s a will, verify that a self-proving affidavit is attached. Confirm every blank is filled in; empty spaces invite post-signing alterations that will land back on you.
During the Signing
The signer applies their signature first, in the presence of all witnesses. Any additional witnesses sign next on the designated witness lines, providing both signatures and printed names. You then sign the document twice: once as a private individual on the witness line, and a second time in your official capacity as a notary. Affix your official seal next to the notarial signature only. The two signatures serve entirely different functions and must appear in the correct spots. Collect valid identification from the signer, and from any other witnesses if the document requires it, before anything is signed. Dates on the witness attestation and the notarial certificate have to match. A discrepancy there is one of the first things a challenger will look for.
Your Journal Entry
Roughly half the states require notaries to maintain a journal, though scope varies. Even in states that don’t mandate one, keeping a journal is the single best protection you have if a document you touched is ever challenged. When you’ve served in a dual capacity, your entry should clearly reflect both roles: date and time, type of document, type of notarial act performed, the signer’s name and identification type, and a note that you also served as a document witness. Record the names and contact information of any additional witnesses. California, as one example, requires the signer’s signature or mark in the journal along with the signature of any subscribing witness, and several states require witness addresses and ID types. Check your state’s specific requirements rather than relying on a generic template.
Remote Online Notarization
Remote online notarization, where the signer and notary connect through a live audio-video session rather than meeting in person, is now authorized in the majority of states. Each state sets its own technology and procedural rules, and whether witnesses can participate remotely varies. Some states require witnesses to be physically present with the signer; others allow witnesses to appear through the same audio-video platform.
The dual-role question gets harder in the remote context. If your state’s remote notarization rules don’t specifically address whether the online notary can also serve as a witness, assume the answer is no. The audio-video recording that most states require will capture exactly what happened, which means any procedural shortcut is preserved for a future challenger to review.
When to Decline, and What to Offer Instead
Decline if your state prohibits dual service or if your commissioning authority has issued guidance against it. Decline if you have any financial or beneficial interest in the transaction, however remote. Decline if the signer is a family member within the degrees of relationship your state restricts, and if your state is silent on family restrictions, decline anyway unless the signer has no connection to your finances or inheritance. Decline if the document requires the witnesses’ signatures to be notarized. Decline if something feels off: a signer who appears confused, coerced, or unable to understand what they’re signing is grounds for refusal under most notary statutes.
When you decline, offer an alternative. Many banks, shipping stores, and law offices have notaries on staff who can handle the notarization while you serve as a witness, or vice versa. Separating the two roles is almost always possible with a little planning, and it eliminates the whole category of challenge. A few minutes spent finding a second person is worth far more than hours spent defending a document that someone claims was improperly executed.