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Guide · Updated October 12, 2026

Notarizing a Business Contract: What the Notary Does

Most business contracts are valid with signatures alone. A notary adds an independent check that the signers are who they claim to be. That can matter when parties are far apart or the deal is large.

Quick answer. Most business contracts are valid with signatures alone. Notarizing adds an independent check on identity and makes a signature harder to deny, which can matter for a bank or investor requirement, public recording, use abroad or parties who are far apart. It does not make a bad contract good.

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Related: NJ notary fees · How long a notary keeps the journal · Who can witness a signing

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