What Is a Notary Public, and When Do You Need One?

A plain-English guide to what a notary public actually does, which documents require one, and how to get notarized without leaving your house.

What Does a Notary Public Actually Do?

A notary public is a state-commissioned official authorized to witness signatures
and administer oaths, with the goal of deterring fraud. When a notary public
notarizes your document, they are confirming three things:

• You are who you say you are — verified against a government-issued photo ID.
• You signed willingly — not under duress or confusion.
• You understood what you signed — at least that you knowingly executed the document, not necessarily its legal contents.

A notary public doesn't give legal advice, doesn't draft your document, and
doesn't review it for accuracy. Their role is narrow and specific: verify
identity, witness the signature, and apply their official seal.

When Do You Need a Notary Public?

Common documents that require a notary public:

• Power of attorney
• Affidavits and sworn statements
• Real estate deeds and mortgage documents
• Loan and refinance paperwork
• Parental or travel consent letters
• Business contracts that specify notarization

How a Notary Public Seals a Document

Every notary public completes a notarial certificate — standardized language
stating what act was performed, where, and when — then signs and applies their
official seal or stamp. That seal, tied to the notary's state commission, is what
makes the document admissible as properly notarized.

Finding a Notary Public Without Leaving Home

NY Notary connects you with a commissioned New York State notary public over live
video. You upload your document, verify your identity, and sign with the notary
public watching live — no appointment at a bank or law office required.

Connect With a Notary Public Now