GUIDE · UPDATED NOVEMBER 2026
Acknowledgment vs. Jurat: What Is the Difference?
The two most common notarial acts, side by side: what each one confirms, when you sign, and how to tell which one your document needs.
The short answer
An acknowledgment confirms that you are who you say you are and that you signed the document voluntarily. A jurat confirms that you signed in front of the notary and swore or affirmed that the contents are true. Acknowledgments are used for deeds, powers of attorney, trusts and contracts. Jurats are used for affidavits and sworn statements. The document or the office receiving it decides which one is needed; a notary cannot choose it for you.
Side by side
| Acknowledgment | Jurat | |
|---|---|---|
| What it confirms | Your identity, and that you signed voluntarily | Your identity, and that you swore or affirmed the contents are true |
| When you sign | Before the appointment or in front of the notary | In front of the notary |
| Oath or affirmation | No | Yes |
| Typical documents | Deeds, powers of attorney, trusts, contracts, consent letters | Affidavits, sworn statements, applications made under penalty of perjury |
| Key phrase on the document | "Acknowledged before me" | "Subscribed and sworn to" or "sworn to or affirmed before me" |
The Massachusetts acknowledgment
Under Chapter 222 of the Massachusetts General Laws, a Massachusetts acknowledgment states that the signer personally appeared before the notary, was identified through satisfactory evidence of identity, and acknowledged signing the document voluntarily for its stated purpose. If you have already signed, you will confirm the signature is yours. A representative capacity, such as an officer of a company or a trustee, can be stated in the certificate.
The Massachusetts jurat
A Massachusetts jurat states that the signer appeared before the notary, was identified, signed in the notary's presence, and swore or affirmed that the contents of the document are truthful and accurate to the best of the signer's knowledge and belief. Because you are signing under oath, do not sign the document before your appointment.
How to tell which one your document needs
- Look at the wording near the signature line or notary block.
- Words such as "acknowledged," "personally appeared and acknowledged" or "free act and deed" indicate an acknowledgment.
- Words such as "sworn," "subscribed and sworn," "under oath" or "affirmed" indicate a jurat.
- If the document has no notary wording, ask whoever prepared it or the office receiving it. A notary is not permitted to choose the act for you, because that would be legal advice.
What about documents going abroad?
Foreign offices often send documents with their own notarial wording, sometimes in another language. A Massachusetts notary must complete a certificate that complies with Massachusetts law, so we may attach a Massachusetts acknowledgment or jurat that matches what the document requests. The Secretary of the Commonwealth then apostilles the notarization. See Massachusetts Notarial Acts.
Mistakes we see
- Signing an affidavit before the appointment. A jurat requires you to sign in front of the notary.
- Asking the notary to pick. The document or recipient decides.
- Mismatched wording. A sworn statement with an acknowledgment certificate can be rejected.
- Missing capacity. When signing for a company or trust, the capacity should be clear.
Two other notarial acts
Massachusetts notaries perform two additional acts. A signature witnessing confirms the notary watched the signer sign, without an oath. A copy certification confirms that a copy the notary made or supervised is a true copy of an original presented in person. Copy certification is not available for public records such as birth certificates, which must be obtained as certified copies from the issuing office. See Certified Copies.
Examples
| Document | Usual act |
|---|---|
| Deed or mortgage | Acknowledgment |
| Power of attorney | Acknowledgment |
| Trust or trust amendment | Acknowledgment |
| Affidavit of support or sworn statement | Jurat |
| Single status affidavit | Jurat |
| One and the same person affidavit | Jurat |
| Self-proving affidavit for a will | Oath before a notary |
| Copy of a passport or diploma | Copy certification, where accepted |
These are typical patterns. The wording on your document controls.
Good to know
Acknowledgment
Identity plus voluntary signing.
Jurat
Identity plus an oath or affirmation, signed in person.
Not the notary's choice
The document or recipient decides.
Certificates
Official sources
This guide summarizes Massachusetts law for general information. It is not legal advice, and notaries public are not attorneys.
Frequently asked questions
What is the difference between an acknowledgment and a jurat?
An acknowledgment confirms identity and voluntary signing. A jurat confirms the signer swore or affirmed the contents are true and signed in front of the notary.
Can I sign before I meet the notary?
For an acknowledgment, yes. For a jurat, no.
Can the notary decide which one I need?
No. That would be legal advice. The document or the receiving office decides.
Which one does an affidavit need?
Usually a jurat, because the signer swears to the contents.
What is the difference between an oath and an affirmation?
An oath is a solemn promise that may refer to a higher power; an affirmation is the same promise without a religious reference. Both carry the same legal weight.
Can one document have both?
Yes. Some documents have several signers or sections that call for different acts.
Need a document notarized?
We come to you anywhere in Greater Boston and complete the correct act every time.