The Short Answer: It Depends on the Document and Your State
A notary can be a witness in most situations, but not always. The rules change based on what document you are signing, which state you are in, and what the document itself requires. Some documents explicitly forbid the notary from being a witness. Others allow it but create a conflict of interest that makes it legally risky. A few states have specific rules that prevent it outright.
The safest approach is to bring a separate witness if the document allows one, and to ask the notary directly before the appointment whether they can serve both roles for your particular paperwork. Many notaries will decline even when the law permits it, because the dual role creates liability if the document is later challenged.
Key Takeaways
- Most states allow a notary to witness a signature, but some documents—particularly wills, powers of attorney, and healthcare directives—may require a witness who is not the notary.
- A notary who also witnesses a document may face legal problems later if someone contests the document, because they have a financial interest in the notarization.
- Your state's notary law and the specific document's requirements both matter; you must check both before your appointment.
- Many notaries will refuse to serve as both notary and witness even when it is legally permitted, to protect themselves from liability.
- If the document allows it and the notary agrees, have them note in writing that they are serving both roles.
When State Law Prevents a Notary From Being a Witness
A handful of states have explicit rules against a notary also serving as a witness. These states treat the two roles as incompatible because a notary's job is to verify the signer's identity and willingness, while a witness's job is to observe and later testify about what happened. Combining them creates confusion about which role the notary was actually performing.
If you live in one of these states, you will need to bring a separate witness. The notary can still notarize the document, but someone else must be the witness. Check your state's notary handbook or call your Secretary of State's office to confirm whether your state falls into this category, because the rule is not universal.
Documents That Forbid a Notary as Witness
Certain high-stakes documents have their own rules about who can witness them, and these rules often exclude the notary. Wills are the most common example. Most states require a will to be signed in front of two witnesses who are not the notary, not the attorney, and not anyone who stands to inherit from the will. If a notary is also a witness to a will, the will may be invalid or the notary's presence may be disregarded entirely.
Powers of attorney and healthcare directives have similar restrictions in many states. Some require witnesses who are unrelated to the signer and not the notary. Others require the notary but forbid additional witnesses. Read the document itself or ask the attorney who drafted it what witnesses are required before you schedule a notary appointment.
Affidavits and sworn statements typically do not require a witness at all—the notary's seal is the only verification needed. In these cases, the question does not arise.
The Conflict of Interest Problem
Even when state law and the document itself allow a notary to be a witness, many notaries will refuse. The reason is financial conflict of interest. A notary earns a fee for notarizing a document. If that same notary is also a witness and the document is later challenged in court, the notary might be called to testify about what they saw. But they also have a financial stake in the notarization being valid, which creates the appearance that they are biased.
A lawyer or judge reviewing the document later may discount the notary's testimony or question whether the notarization was truly impartial. This risk is small but real, and most professional notaries avoid it by declining to serve as both notary and witness. Some notaries will do it only if you sign a written agreement acknowledging the conflict and releasing them from liability.
What to Do Before Your Appointment
Before you book a notary, gather the document and read it carefully. Look for any language that specifies who must witness the signature. If it says "witnessed by" or "in the presence of," you need a witness. If it says "notarized" only, you do not.
Next, check your state's notary law. You can find this in your state's Secretary of State website or by calling their office. Search for "notary public" and "witness" together to see if your state has a rule against dual roles.
Once you know what the document requires and what your state allows, call the notary and ask directly: "Can you serve as both the notary and a witness for this document?" Give them the document type so they can give you an accurate answer. If they say no, bring a second person to serve as witness, or find a different notary who is willing.
How to Document the Dual Role if It Happens
If the notary agrees to serve as both notary and witness, ask them to note it clearly in their notary journal or on the document itself. The notation should say something like "Notary public [name] also served as witness." This creates a record that the dual role was intentional and known to everyone involved, which protects all parties if the document is later questioned.
Some notaries will ask you to initial or sign a separate statement acknowledging the conflict of interest. This is a good sign—it means the notary is being careful and professional. Do not view it as a red flag; view it as the notary protecting both of you.
Alternatives If You Cannot Use the Same Person
If the document requires a witness separate from the notary, or if the notary refuses to serve both roles, you have a few options. The simplest is to bring a trusted friend or family member to serve as witness. They do not need any special qualifications in most cases—they just need to be present, watch you sign, and be willing to sign their own name as a witness if the document requires it.
Some documents specify that the witness cannot be related to you or cannot stand to benefit from the document. Check the document or ask the notary whether your chosen witness meets these requirements before the appointment.
If you cannot find a suitable witness, some notaries offer witness services separately from notarization. They will observe your signature and sign as a witness, then a different notary will notarize the document. This takes longer and costs more, but it solves the conflict-of-interest problem entirely.
Frequently Asked Questions
Can a notary witness a will?
Most states do not allow a notary to serve as one of the required witnesses to a will. Wills typically need two witnesses who are not the notary, not the attorney, and not anyone who inherits under the will. Check your state's will requirements or ask the attorney who drafted it.
What if I only have one person available and they are the notary?
If the document requires both a notary and a witness, you cannot use the same person in most states. You will need to find a second person to serve as witness, or ask the notary whether they are willing to serve both roles despite the risk. If they refuse, you may need to reschedule with a different notary or bring an additional person.
Does a notary's seal count as a witness signature?
No. A notary's seal verifies that the notary watched you sign and confirmed your identity. It does not replace a witness signature. If the document requires both a notary and a witness, you need both, even though they are different things.
Can a family member be a witness if a notary is also present?
Usually yes, but it depends on the document. Some documents forbid witnesses who are related to the signer or who stand to benefit. Read the document or ask the notary whether your family member can serve as witness before the appointment.
What happens if I use a notary as a witness and the document is challenged later?
The document may still be valid, but the notary's dual role could be used to argue that the notarization was not impartial. A court might discount the notary's testimony or question whether you truly understood what you were signing. This is why most notaries avoid the dual role—it creates unnecessary legal risk.