A notary certifies the signer. An apostille certifies the notary. Most documents used abroad need both — first the notarization, then the apostille from the state where the notary is commissioned.
What a notary actually does
A notary public is a state-commissioned officer whose main job is to verify the identity of a signer and witness that the signature was made freely. The notary's stamp and signature give the document a layer of trust — but only within the country where the notary is commissioned.
What an apostille adds
An apostille is a state or federal certificate that verifies the notary or issuing officer is genuine. It converts a domestic notarization into something a foreign government will accept.
Without the apostille, a notarized U.S. document has no standing abroad. With it, the document is treated as authentic in every Hague Convention member country.
Side-by-side comparison
| Feature | Notary | Apostille |
|---|---|---|
| Purpose | Verify signer identity | Verify notary or officer authority |
| Issued by | State-commissioned notary | State or U.S. Dept. of State |
| Recognition | Within the U.S. | In all Hague Convention countries |
| Cost | $5–$25 per signature | $15–$30 per document |
| Time | Minutes | Days to weeks |
When you need both
- •Power of attorney used in another country.
- •Affidavits and consent letters for foreign adoption.
- •Diplomas signed by the school registrar.
- •Business agreements executed in the U.S. for foreign filing.
When you only need one
Some documents are already public records issued by a government office — birth certificates, marriage certificates, court orders. Those do not need a notary. They only need the apostille attached to the certified copy.
Some domestic transactions only need a notary and never leave the U.S. — refinance packets, DMV filings, and estate documents used inside the country.
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