Notary glossary
Affiant
An affiant is the person who makes a sworn statement: the one who swears or affirms that an affidavit is true, and who signs it. If your name appears above the signature line on an affidavit, you are the affiant. Some documents and courts use “deponent” or “declarant” for the same role.
What the affiant is actually doing
The affiant is vouching for the facts. Before signing, you take an oath or affirmation in front of the notary that everything in the document is true to the best of your knowledge. That is what separates an affidavit from an ordinary signed letter.
Because the statement is sworn, making one you know to be false carries legal consequences. The exact offence and penalty are set by state law, but the principle is universal: an affidavit is evidence, and courts and agencies treat it that way.
The affiant is not the notary
This is the most common mix-up on notarized forms, and it matters because the two roles are deliberately separate. The affiant is the person making the statement. The notary is an impartial official who confirms the affiant's identity, administers the oath, and completes a certificate recording that it happened.
A notary never swears to the truth of what your document says — they have no way of knowing whether it is true, and certifying it would defeat the point of being impartial. If a form has one signature line for the affiant and another for the notary, they are for two different people and cannot be the same person.
Who can be an affiant
Generally anyone with personal knowledge of the facts, who understands the oath and signs willingly. Affidavits regularly come from property owners, contractors, parents, executors, employees and witnesses — no particular qualification is required.
A document can have more than one affiant when several people swear to the same facts. Each one appears, takes the oath and signs, and the notary completes a certificate covering everyone who appeared.
Affiant, deponent, declarant
The three words describe substantially the same role and the right one depends on the document. “Affiant” is the standard term on an affidavit. “Deponent” usually appears where testimony is given under oath in a legal proceeding. “Declarant” belongs to a declaration, which in some jurisdictions is signed under penalty of perjury without a notary at all.
If your form uses one of these words, use it consistently — mixing terms between the body and the signature block is a common reason paperwork comes back for correction.
Common questions
- Is the affiant the notary?
- No, and they cannot be the same person. The affiant makes and swears to the statement; the notary is an impartial official who verifies the affiant's identity, administers the oath, and completes the certificate. Separate signature lines on the form are for two different people.
- Who is the affiant on a document?
- The person making the sworn statement — the one whose name appears in the body of the affidavit and who signs it. If you are the one swearing the contents are true, you are the affiant.
- Can a document have more than one affiant?
- Yes. Where several people swear to the same facts, each appears before the notary, takes the oath and signs. The notarial certificate records everyone who appeared.
Related terms
Affidavit
A written statement of facts that the signer swears or affirms is true in front of a notary. City permit packets are full of them: owner-builder affidavits, roofing affidavits, survey affidavits. An affidavit needs a jurat, not an acknowledgment.
Jurat
A notarial act where you sign the document in the notary's presence and swear or affirm that its contents are true. The certificate reads "sworn to (or affirmed) and subscribed before me". Affidavits and sworn applications use a jurat.
General notary practice, not legal advice — rules on identification, witnesses and which documents may be notarized online are set by each state. See the requirements page for your state, browse the full notary glossary, or ask us.