What a Notary Public Does (and What They Can't)
This content is educational and informational, not legal advice. A notary's exact powers are set by each state and change, so confirm specifics with your state's notary authority.
What does a notary public do?
A notary public serves as an impartial witness who confirms who signed a document and that they did so willingly and aware. The commission comes from the state, and the notary's job is to deter fraud in signings, not to judge the paperwork itself. The core acts fall into a short list, and knowing which is which explains most of what a notary is for.
| Act | What it confirms |
|---|---|
| Acknowledgment | The signer appeared and confirmed the signature is theirs |
| Jurat | The signer swore the contents are true and signed in front of the notary |
| Oath or affirmation | A spoken promise of truthfulness |
| Copy certification | A copy is a true reproduction of an original |
| Signature witnessing | The notary watched the signer sign |
What can a notary public not do?
A notary public cannot verify that a document is true, legal, or wise, and cannot give legal advice or choose which certificate you need unless they are also an attorney. They cannot notarize their own signature, notarize for someone who is not present, or proceed when the signer seems confused or coerced. This limit is the point: a notary confirms the signing, not the substance, which is why a notarized document is not automatically a legal or accurate one.
What is on a notary's seal?
A notary's seal identifies the notary and their authority, and most states require a specific set of elements so the stamp can be trusted and photocopied. The exact layout varies, but the parts below appear on almost every seal, which is why a missing element can invalidate an otherwise good notarization.
| Element on the seal | Purpose |
|---|---|
| Notary's name | Identifies the commissioned officer |
| "Notary Public" | States the office held |
| State (and sometimes county) | Shows the jurisdiction of the commission |
| Commission number | Links the act to the public record (where issued) |
| Commission expiration | Confirms the commission was active on the date |
How do you become a notary public?
You become a notary public by applying to your state, meeting its requirements, and getting commissioned, and the exact path varies a lot by state. Some states require a bond, an exam, or training; others require none of these. The term usually runs four to ten years depending on the state. If you want the full process for a specific state, our state-by-state guide covers each one's fees, bond, and steps.
Notary public: frequently asked questions
- Does a notarized document mean it is legal or true?
- No. A notary confirms the identity and willingness of the signer, not that the document's contents are true, legal, or enforceable.
- Can a notary give legal advice?
- No, not unless they are also a licensed attorney. Choosing your certificate or advising on the document would be the unauthorized practice of law.
- What is the difference between an acknowledgment and a jurat?
- An acknowledgment confirms a willing signature; a jurat adds a sworn oath that the contents are true and requires signing in front of the notary.
- Can a notary refuse to notarize?
- Yes, and sometimes must, if the signer is not present, cannot be identified, seems coerced or confused, or the document is incomplete.
- How long does a notary commission last?
- Usually four to ten years, depending on the state. Some states run shorter two-year terms, and each sets its own renewal process.
Published June 13, 2026 by the Trámites Notariales US editorial team. Sources: Revised Uniform Law on Notarial Acts and state notary handbooks (2026). Confirm your state's specific powers and seal requirements before relying on them.