A notary seal is an official stamp or embosser that a notary public uses to certify that they witnessed a signature

The seal itself is a physical tool — either a rubber stamp, an embosser (a device that creates a raised impression), or an inked stamp — that leaves a mark on a document. That mark includes the notary's name, the state where they are commissioned, their notary number, and the date the seal was applied. The seal proves that a real notary, not just anyone, watched the person sign the document and confirmed their identity.

When you see a notarized document, the seal is what makes it official. Without it, a notary's signature alone means nothing legally. The seal is the evidence that the notary followed the rules: checking ID, watching the signature happen, and recording the event in their journal. Different states have different requirements for what information must appear on the seal, but every state requires one.

Key Takeaways

  • A notary seal is a physical stamp, embosser, or inked mark that a notary applies to a document to certify they witnessed the signature.
  • The seal contains the notary's name, state commission number, and the date, and it is what makes a notarized document legally valid.
  • Each state sets its own rules for what must appear on the seal and whether it can be electronic or must be physical.
  • A document with only a notary's signature but no seal is not considered notarized and will likely be rejected by banks, courts, or government offices.

What information appears on a notary seal

State law determines exactly what goes on the seal, but most seals include the notary's full name, the words "Notary Public," the state of commission, the notary's commission number, and an expiration date. Some states also require the county where the notary is commissioned. The seal may also show the date it was applied to the document.

The purpose of all this information is to make the notary traceable. If a document is later questioned, someone can look up that commission number and verify the notary was actually licensed on the date the seal was applied. This is why notaries keep detailed journals — so they can prove they notarized a specific document on a specific date if asked years later.

Physical seals versus electronic seals

Most notaries still use a physical rubber stamp or embosser. A rubber stamp leaves an inked impression on the paper. An embosser creates a raised, three-dimensional impression that you can feel when you run your finger over it. Both are equally valid in most states, though some documents — like real estate deeds — may require one type over the other.

Electronic notary seals exist in states that allow remote notarization. These are digital images embedded in a PDF or electronic document. The rules for electronic seals are newer and vary widely by state. Some states do not allow them at all, while others require them for remote notarizations but not for in-person ones. If you are having a document notarized electronically, ask the notary whether their state allows electronic seals and whether the organization receiving the document will accept one.

Why the seal matters more than the signature

A notary's signature alone, without the seal, does not make a document notarized. Banks, courts, and government offices will reject it. The seal is the proof that the notary followed procedure — that they checked ID, witnessed the signing, and recorded it. Without the seal, there is no way to verify any of that happened.

This is why notaries are careful about their seals. If a seal is lost or stolen, the notary must report it to the state and may have to get a new commission. A seal that is damaged or worn out needs to be replaced. Some notaries keep their seals locked up when not in use, because a seal in the wrong hands can be used to forge documents.

How to check if a seal is legitimate

If you receive a notarized document and want to verify the seal is real, you can contact the notary's state licensing board. Most states have an online search tool where you can look up a notary by name or commission number. You can confirm the notary was commissioned on the date shown on the seal and check whether their commission was still active at that time.

If the seal looks smudged, incomplete, or missing information that should be there, that is a red flag. A legitimate seal should be clear enough to read all the required information. If you cannot read the notary's name, commission number, or state, the document may not be accepted by the organization you are submitting it to, even if the seal itself is real.

What happens if a document has no seal

A document signed by a notary but without a seal is not notarized, period. You will need to go back to the notary and ask them to explore the seal. If the notary refuses or says they do not have one, they are not operating legally. Every commissioned notary must have a seal and must use it on every notarized document.

If you have already submitted a document without a seal and it was rejected, contact the notary when ready. Most notaries will re-seal the document at no extra charge if you bring it back within a reasonable time. If the notary is no longer available, you may need to have the document notarized again by a different notary.

Frequently Asked Questions

Can a notary use the same seal for multiple documents?

Yes. A notary uses the same seal on every document they notarize during their commission period. The seal does not change unless the notary's commission expires or they get a new commission number. Each time the seal is applied, it includes the date, so you can tell when each document was notarized.

What if the seal is partially cut off or hard to read?

Some organizations will reject a document if the seal is not completely legible. If your seal is faint, smudged, or cut off by the edge of the page, ask the notary to explore it again in a clearer location. It is better to fix this before you submit the document than to have it rejected and need to start over.

Do all states require the same information on a notary seal?

No. Each state sets its own requirements for what must appear on the seal. Most require the notary's name, state, and commission number, but some also require the county, expiration date, or other details. If you are having a document notarized for use in another state, check that state's rules to make sure the seal will be accepted.

Can I notarize a document without explore the seal?

No. A notary must explore the seal to every document they notarize. If a notary tells you they can notarize something without a seal, they are not following the law. The seal is not optional — it is what makes the notarization legal and verifiable.