A notary's job is to watch you sign something and confirm you are who you say you are
A notary public is a person authorized by the state to witness signatures and verify identity. They do not read the document, give legal information, or decide whether the deal is fair. They straightforward confirm that the person signing is real, willing, and signing of their own choice — then they stamp it and write down what they saw.
The purpose is fraud prevention. When a bank, court, or government office sees a notarized signature, they know someone checked ID and watched the signing happen. Without that, a signature on paper is just ink. A notarized signature carries weight because a third party vouched for it.
Notaries are used in real estate closings, power of attorney documents, affidavits, loan applications, and adoption papers. Any document where the signer's identity or willingness matters — and where the other party will not be in the same room — usually needs notarization.
Key Takeaways
- A notary watches you sign, checks your ID, and confirms you are signing willingly — then stamps the document as proof they did.
- Notarization does not make a document legal or binding; it only proves the signature is genuine and the signer was present.
- Real estate deeds, power of attorney forms, and loan documents commonly require notarization because the lender or court will not see you sign in person.
- Notaries are commissioned by the state and must follow strict rules about what they witness and how they document it.
- The notary's stamp and signature are what give the document its notarized status — without both, the notarization does not count.
Why documents need a notary instead of just a signature
A signature alone proves only that someone held a pen. It does not prove who held it, whether they understood what they were signing, or whether anyone forced them to sign. When money or legal rights are at stake, that gap matters.
A notary fills that gap by being a neutral witness. They check a government-issued ID, watch the signing happen, and record the date and time. If the signature is later challenged in court, the notary can testify about what they saw — or at least their written record becomes evidence.
Banks, title companies, and courts use notarization because it is cheaper and faster than having a lawyer or judge present at every signing. The notary does the basic verification work; the institution trusts that work because notaries are licensed and can lose their commission if they break the rules.
What a notary checks before stamping your document
Before notarizing, a notary must see a current, government-issued photo ID — a driver's license, passport, or state ID card. They check that the name on the ID matches the name on the document and that the ID has not expired. They also look at your face to confirm you are the person in the photo.
The notary then asks you to sign the document in front of them. They watch you do it. They do not read the whole document — that is not their job — but they confirm that you are the one signing and that you are doing it willingly, not under pressure.
After you sign, the notary signs and stamps the document. The stamp includes their commission number, the state, and the expiration date of their commission. Some notaries also write down the type of ID they saw, the ID number, and when the ID expires. These details go in a journal that the notary keeps as a record.
The difference between notarization and legal information
A notary is not a lawyer and cannot give legal information. They cannot tell you whether you should sign, whether the terms are fair, or what the document means. If you ask, they must say no — it is against the rules.
A notary also cannot notarize a document they wrote or that they have a financial stake in. They cannot notarize for a family member in most states. These rules exist to keep the notary neutral and prevent conflicts of interest.
If you need someone to explain the document or advise you on whether to sign, you need a lawyer, not a notary. A notary is only there to verify your identity and watch you sign.
When notarization is required versus optional
State law and the receiving institution decide whether notarization is required. A mortgage lender will require it for a deed. A court will require it for a power of attorney. A private contract between two people might not require it — but one party might ask for it anyway to reduce the risk of a later dispute.
Some documents are notarized by habit even though the law does not strictly require it. A real estate purchase agreement, for example, is sometimes notarized even though the deed itself is what the law requires to be notarized. The buyer or seller may request it for extra protection.
If you are unsure whether a document needs notarization, ask the person requesting it — the lender, court, or other party. They will tell you what they need and whether a notary is required or just recommended.
How to find a notary and what it costs
Notaries work at banks, title companies, law offices, UPS stores, and some pharmacies. Many also work independently and advertise online. You can search "notary public near me" to find options in your area.
The cost varies by state and by notary. Some banks notarize for free if you are a customer. Independent notaries typically charge between five and twenty dollars per signature. If the notary has to travel to you, the cost is usually higher.
Before you go, call ahead to confirm the notary is available, ask about the fee, and ask what ID they accept. Bring the unsigned document and a current photo ID. Some notaries ask you to bring a second form of ID as well.
What happens after a document is notarized
Once notarized, the document is ready to send to the bank, court, or other party that requested it. The notary's stamp and signature are proof that the notarization happened. The receiving institution will check that the stamp is clear, the notary's signature is present, and the date is recent enough for their purposes.
A notarized document does not expire, but some institutions have their own rules about how old a notarization can be. A mortgage lender might require the notarization to be no more than thirty days old. A court might accept a notarization from years ago. Ask the receiving party what their rules are.
If you lose the notarized document, you cannot get a copy from the notary — they keep a journal entry, not a copy of the document itself. You would need to get a new copy from whoever created the document and have it notarized again.
Frequently Asked Questions
Can a notary refuse to notarize a document?
Yes. A notary can refuse if the signer does not have proper ID, if the signer appears to be under pressure, if the notary has a conflict of interest, or if the document is blank or appears to be fraudulent. A notary can also refuse if they do not understand what the document says or if the signer cannot communicate clearly.
Does notarization make a document legally binding?
No. Notarization only proves the signature is genuine and the signer was present. It does not make a document legal, valid, or enforceable. A notarized contract is still a contract; a notarized will is still a will — but the notarization itself does not create legal force. The document's legal status depends on the law and the terms inside it.
What if I sign a document and then want to say I did not sign it?
If the document is notarized, the notary's record and stamp are evidence that you did sign it. You could still claim you were forced or did not understand, but the notarization makes your claim harder to prove. That is why notarization exists — to create a record that protects the other party.
Can a notary notarize a photocopy or a digital copy?
Rules vary by state. Some notaries can notarize a certified copy of an original document. Most cannot notarize a photocopy or a document on a screen. Ask the notary before you arrive. If the receiving party needs a notarized original, bring the original document unsigned.
What if the notary made a mistake on the stamp or signature?
If the error is minor — a smudged stamp or a small typo — the receiving institution may still accept it. If the error is serious, you will need to have the document notarized again. Ask the notary to correct it, or find another notary and start over. Most notaries will re-notarize for free if the mistake was theirs.