A notary certificate is the official statement a notary public writes on or attaches to a document to confirm they watched you sign it
When you sign a document in front of a notary, they do not just watch and leave. They write a formal statement—the notary certificate—that says who you are, what document you signed, when it happened, and how the notary confirmed your identity. This certificate is the proof that a notary was actually there and saw the signing happen. Without it, the notary's involvement means nothing to whoever receives the document later.
The certificate is usually printed on the same page as your signature, or on a separate page attached to the document. It includes the notary's signature, their official seal (a stamp or embosser), and their commission number. Banks, courts, government offices, and title companies look for this certificate to know the document is legitimate.
Key Takeaways
- A notary certificate is the written statement a notary adds to a document after watching you sign it, confirming your identity and the signing date.
- The certificate must include the notary's signature, official seal, and commission number to be valid.
- Different types of notarization—acknowledgment, jurat, and others—have different certificate wording and requirements.
- The certificate is what makes the notarized document acceptable to banks, courts, and government agencies; without it, the notary's presence proves nothing.
- Each state sets its own rules for what must appear on a notary certificate, so wording varies by location.
The three main types of notary certificates
Not all notary certificates look the same. The wording and what the notary must do before signing depend on the type of notarization the document needs.
An acknowledgment certificate is the most common. The notary watches you sign the document and confirms they know who you are or have checked your ID. The certificate says something like "I certify that [your name] personally appeared before me and acknowledged signing this document." The notary does not need to know why you are signing or what the document says—just that you signed it willingly.
A jurat certificate requires more. You sign the document in front of the notary, and then you swear or affirm under oath that everything in the document is true. The certificate says "I certify that [your name] appeared before me and swore under oath that the contents of this document are true." Jurats are common for affidavits and court documents.
A copy certification is different again. You bring an original document, the notary compares a copy to it, and the certificate says the copy is a true and accurate reproduction of the original. This is used for things like birth certificates or diplomas.
What information must appear on a notary certificate
State law sets out exactly what has to be on the certificate. Most states require the notary to include your name, the date the signing happened, the notary's name, their commission number, and the county where they are commissioned. The notary's official seal must also appear—either a rubber stamp, an embosser that creates a raised impression, or an ink stamp, depending on state rules.
Some states require the certificate to say how the notary confirmed your identity—for example, "based on satisfactory evidence of identification consisting of a driver's license" or "based on personal knowledge." Others require the notary to state the document's title or a description of it. A few states now allow electronic notarizations, and those certificates include a statement that the signing happened remotely.
If the certificate is missing required information or the notary's seal is not there, the document may not be accepted by the organization that needs it. Some will ask you to get it notarized again; others will reject it outright.
Why organizations require notary certificates
A notary certificate serves as proof that a real person with government training and a legal obligation watched you sign. It creates a chain of accountability: if you later claim you never signed the document, or that someone forged your signature, the notary can be held responsible for lying. This makes people less likely to forge documents, and it makes organizations more confident the signature is genuine.
Banks use notary certificates on mortgage documents and loan papers. Courts require them on affidavits and sworn statements. Title companies need them on property deeds. Government agencies ask for them on power of attorney forms and passport applications. In each case, the organization is saying: "We need to know this person actually signed this, and we trust a notary to have checked."
How to read a notary certificate
When you receive a notarized document, look for the certificate section. It should have the notary's printed name, their commission number, and the county they work in. Check that the date on the certificate matches when you actually signed—if it is off by days or weeks, something went wrong. Make sure the notary's seal is clear and complete; a faded or partial seal can cause problems later.
Read the wording to confirm it matches what you did. If you signed an acknowledgment, the certificate should say "acknowledged." If you swore an oath, it should say "swore" or "affirmed." If the wording does not match the type of notarization you received, the document may not be accepted by whoever needs it.
If the certificate is missing the notary's signature, seal, commission number, or the date, ask the notary to correct it before you leave. Once you walk out, fixing it is much harder.
Notary certificates and remote notarization
Some states now allow notaries to notarize documents while you are in a different location, using video call technology. When this happens, the certificate must say the notarization was done remotely. The wording might read "remotely notarized" or "notarized via audio-visual communication." The notary still adds their seal and signature, but the certificate makes clear they did not see you in person.
Remote notarization is faster and more convenient, but not all states allow it, and not all organizations accept remotely notarized documents. Before you use a remote notary, check whether the organization that will receive the document accepts remote certificates. Some banks and government agencies still require in-person notarization.
Common mistakes on notary certificates
Notaries sometimes misspell names, write the wrong date, or forget to include their commission number. These errors can cause the document to be rejected. If you spot a mistake before you leave the notary's office, ask them to issue a corrected certificate right away—either by redoing the page or by issuing a separate corrective certificate.
Another common problem is using the wrong type of certificate. If a bank asks for an acknowledgment and the notary gives you a jurat instead, the bank may not accept it. Before you go to the notary, ask the organization that needs the document which type of certificate they require. Bring that information with you so the notary knows what to do.
Some people try to notarize documents they did not sign in front of the notary, or they ask the notary to backdate the certificate. Both are illegal. A notary who does this can lose their commission and face criminal charges. If a notary refuses to notarize something, it is because the law does not allow it.
Frequently Asked Questions
Can a notary certificate be added to a document after I sign it?
No. You must sign the document in front of the notary. The notary watches you sign, then adds the certificate. If you sign first and bring it to a notary later, they cannot notarize it—they did not see you sign it. The only exception is a copy certification, where you bring an already-signed original and the notary certifies that a copy matches it.
What if I lose the document with the notary certificate?
You will need to get it notarized again. The notary keeps a record of the notarization in their journal, but they cannot issue a duplicate certificate without seeing you sign a new copy. Some organizations may accept a certified copy of the notary's journal entry, but this is rare and varies by state.
Do all states use the same notary certificate wording?
No. Each state sets its own rules for what must appear on a notary certificate. The basic information—your name, the date, the notary's signature and seal—is standard everywhere, but the exact wording and required details vary. If a document will be used in a different state, check that state's rules before you have it notarized.
Is a notary certificate the same as a notarized document?
A notarized document is the original document plus the notary certificate. The certificate is the part the notary adds. You cannot have one without the other—the document alone is not notarized, and the certificate alone is not useful. Together, they make the document notarized.
Can I notarize a document myself if I am a notary?
No. A notary cannot notarize their own documents or documents for close family members. The whole point of a notary is that they are an independent third party. If a notary notarizes their own document, it is invalid and they can lose their commission.