The short answer
A document needs a notary in New York when a law or an official form requires an acknowledgment or a sworn statement, or when whoever receives it asks for one. These are the ones New York law names that people run into most:
- Deeds, mortgages and anything else you record with the City Register or a county clerk.
- Powers of attorney for money and property, which also need two witnesses.
- Prenups, postnups and separation agreements, and a waiver of a spouse's right of election.
- Lifetime trusts, unless two witnesses sign instead.
- A few family papers, like a parent's written consent to a private adoption, or a designation of someone to care for a child for more than 30 days.
Wills and health care proxies need witnesses, not a notary. Affidavits depend on where they go: New York courts and most state agency hearings accept a signed affirmation instead, while anyone else who wants a sworn statement gets one sworn before a notary. Contracts, leases, bills of sale and New York car titles need nothing unless the other side insists, and the chart further down sorts out the rest.
Every common document, and what New York requires
Most rows link to the statute or agency page they come from, all checked in October 2026.
| Document | Notary? | What New York requires |
|---|---|---|
| Deed or mortgage | Yes | The City Register or county clerk will record it only if it is acknowledged before a notary or another officer who takes acknowledgments, or proved as the Real Property Law provides (Real Property Law §291). |
| Power of attorney for money and property | Yes | Acknowledged before a notary and signed by two witnesses who are not agents or gift recipients; the notary may be one of them (GOL §5-1501B). Each agent signs before a notary too. Business powers and government agency forms follow their own rules (§5-1501C). The full signing recipe. |
| Prenup, postnup or separation agreement | Yes | Signed and acknowledged or proven like a deed to be valid and enforceable in a matrimonial action (DRL §236(B)(3)). The acknowledgment has to be made at or near the signing (Anderson v. Anderson). |
| Waiver of a spouse's right of election (elective share) | Yes | A waiver of the right of election must be acknowledged or proved like a deed (EPTL §5-1.1-A, as applied in Matter of Koegel). |
| Lifetime trust | Yes, or witnesses | Acknowledged by the person creating it and, unless they are the sole trustee, a trustee; or signed in front of two witnesses instead (EPTL §7-1.17). |
| Will | Witnesses | Two attesting witnesses, no notary (EPTL §3-2.1). The witnesses can also swear an affidavit before a notary or another officer who gives oaths, which usually spares them a trip to court later (SCPA §1406). |
| Health care proxy | Witnesses | Two adult witnesses, and the person you name as agent cannot be one (Public Health Law §2981). Bedside signings. |
| Living will | Optional | No New York statute covers it. The Attorney General recommends two witnesses and a notary so other states recognize it. |
| Caregiver designation for a child, over 30 days | Yes | A parent's designation of a person in parental relation for more than 30 days must be notarized (GOL §5-1552). |
| Consent to a private or stepparent adoption | Yes | A consent signed outside court is executed or acknowledged before a notary or another officer who takes proof of deeds (DRL §115-b). Agency adoptions use a surrender with its own rules. |
| Affidavit for a New York court case or state agency hearing | Usually no | Sign an affirmation under penalty of perjury instead, in the wording the rule sets out (CPLR 2106; SAPA §302 for most state agency hearings). |
| Affidavit for anywhere else | Their call | If the receiver wants a sworn affidavit, you swear it before a notary or another officer who can give oaths. For federal matters, including federal courts, an unsworn declaration usually works instead (28 U.S.C. §1746). |
| Divorce papers | Partly | A settlement or separation agreement must be acknowledged or proven like a deed (DRL §236(B)(3)). Sworn court forms can generally be affirmed under CPLR 2106 instead. |
| Child passport consent, Form DS-3053 | Yes | Signed in front of a notary, with a copy of the front and back of your ID, and sent within 90 days (U.S. Department of State). |
| Travel consent letter for a child | Recommended | No U.S. or New York law requires it, but USAGov says notarized is preferred, and some countries require it. |
| NYC birth certificate ordered by mail | Yes | Both of the city's mail applications must be notarized: Section Four of the premium form, Section Five of the standard one. Online and in person orders need no notary. How to order an NYC birth certificate. |
| Spousal consent for a pension or 401(k) | Yes, or plan rep | When a spouse waives survivor benefits or agrees to another beneficiary, a notary or a plan representative witnesses it (26 U.S.C. §417). |
| Lease | No | Valid without a notary, and recording is optional. To record a lease over three years, the lease or a memorandum of it is acknowledged (Real Property Law §291-c). |
| Contract, IOU or bill of sale | No | No New York rule requires it for an ordinary contract. Notarize only if the other side asks. |
| Car title and bill of sale (MV-912) | No | A New York title transfers without a notary (NY DMV). Some out of state titles and the deceased owner affidavit (MV-349.1) do need one. |
| Documents going abroad | Usually | If the receiving country wants an apostille: notarized, then certified by the county clerk where the notary qualified, then the apostille from the Department of State. Countries outside the Hague Convention get an authentication instead, often with more steps before the consulate. How we handle it. |
| Birth or death certificate going abroad | No | No notary. The issuing office certifies it, and it reaches the Department of State directly or through a county clerk, depending on who issued it. The NYC route. |
| Stock transfer with a Medallion guarantee | No | A Medallion guarantee comes from a financial institution in a Medallion program, such as a bank, credit union or broker dealer, and Investor.gov lists no other source. Ask your bank or broker. |
| Form I-864 or a certified translation for USCIS | No | USCIS takes the I-864 without a notary, and the translator certifies a translation (8 CFR 103.2). |
Not on the list? Ask who receives it
When no statute names your document, the receiver decides. A bank, a school, an insurer, a consulate or a court in another state can require a notary for its own forms, and nothing in New York law overrides that. The paper itself usually tells you: a notary block at the bottom, with lines like “Sworn to before me” or “State of New York, County of,” means yes.
Still unsure? Ask the receiver one question in writing: “Does this need to be notarized, or is a signature enough?” A written answer helps if the paper comes back.
What a notary actually does, and what notarized means
A document is notarized when a commissioned notary public confirms who signed it, and either that they signed willingly or that they swore the contents are true, then completes and signs a certificate on the page. It is evidence of who signed and that they meant to. It does not make the contents true or legal, and a notary cannot give legal advice unless they are also a lawyer.
New York notaries do two main things:
- Acknowledgments. You confirm to the notary that the signature is yours and that you signed willingly. Deeds, powers of attorney, trusts and prenups work this way. The Department of State says you do not have to sign in front of the notary for an acknowledgment, but you do have to appear before them, in person or, with a notary set up for electronic notarization, on a live video call; an acknowledgment over the phone is illegal. Most people simply sign at the visit.
- Oaths and affirmations. You swear or affirm that what you wrote is true, and the notary signs a jurat (“Sworn to before me”). Affidavits work this way.
Either way, the notary has to be sure who you are: Real Property Law §303 requires it for acknowledgments, and Department of State rules require it for every notarial act. A current government photo ID is the usual proof; the rules also allow credible witnesses who know you, under set conditions. A notary also has to step aside from any document they are a party to or stand to gain from, and a New York notary cannot issue certified copies of documents.
The wording matters more than people expect. In 2013, New York's highest court held a prenup unenforceable because the husband's certificate left out the language confirming the notary knew him or had proof of who he was, and the notary's later affidavit was too vague to fix it (Galetta v. Galetta). Since 2021, a slip like that can sometimes be cured with solid proof, but for a marital agreement an acknowledgment added years after the signing does not count (Matter of Koegel; Anderson v. Anderson). The statutory form, filled in completely at the signing, avoids the fight.
Before you get anything notarized
- Check the paper. A notary block, or the word sworn or acknowledged, means yes. No block and no instruction usually means no.
- Ask the receiver if you are unsure, and get the answer in writing.
- Fill in everything except the signature lines, and sign at the visit.
- Bring current government photo ID for every signer, and witnesses if the document calls for them. Wills, health care proxies and powers of attorney all do.
- Going abroad? Ask whether it needs an apostille before you sign, so the notarization and the county clerk step line up.
Need it notarized today? A New York notary comes to you, 7am to midnight in all five boroughs. The visit is the borough flat rate, $125 in Manhattan to $245 on Staten Island, plus $2 per notarized signature, with set extras for same day, evening and weekend visits shown before you book.
Book a visitSee every priceThis guide is general information, not legal advice. For a document with real money or family stakes, a lawyer is worth the call.
For the cheapest route, see where to get something notarized for free in NYC. Signing for someone else under a power of attorney? Here is how an agent signs in New York.
Common questions
Does a will need to be notarized in New York?
No. A New York will needs your signature at the end and two attesting witnesses (EPTL §3-2.1), not a notary. The witnesses can also sign an affidavit in front of a notary, often called a self proving affidavit, so the Surrogate's Court can usually accept the will without calling them in later (SCPA §1406).
Does a health care proxy need to be notarized in New York?
No. It needs two adult witnesses, and the person you name as your agent cannot be one of them (Public Health Law §2981). A financial power of attorney is different: that one does need a notary, plus two witnesses.
Does a lease need to be notarized in New York?
No. A lease is valid once both sides sign. A notary only comes in if you choose to record a lease longer than three years, which is done by acknowledging the lease or a memorandum of it (Real Property Law §291-c).
Does a contract need to be notarized to be legal?
Not an ordinary contract. The exceptions are agreements a statute names, such as prenups and separation agreements, which must be acknowledged or proven like a deed. Some people notarize an important contract anyway, so no one can later claim the signature was forged; that is a choice, not a rule.
Does a car title need to be notarized in New York?
No. For a New York title, the seller completes the transfer section and signs a bill of sale (MV-912), with no notary (NY DMV). The exceptions are titles from certain other states, whose transfer section must be notarized, and the affidavit for transferring a car whose owner has died (MV-349.1).
Do affidavits still need a notary in New York?
Not for a New York court case or most New York State agency hearings. Since January 1, 2024, CPLR 2106 lets anyone sign an affirmation under penalty of perjury, in the wording the rule sets out, in place of an affidavit in a court case. A December 2024 amendment let pleadings be verified by affirmation, and a November 2025 amendment extended CPLR 2106 to any other sworn statement. Most state agency hearings have accepted affirmations since December 2024 (SAPA §302). In court cases, the exceptions are depositions, oaths of office, oaths that must be taken before a specific official other than a notary, and marital agreements. Anywhere else, the receiver decides: if they want an affidavit, it is sworn before a notary or another officer who can give oaths.
Does a prenup need to be notarized in New York?
Yes. A prenup, postnup or separation agreement must be in writing, signed and acknowledged or proven like a deed to be valid and enforceable in a divorce (DRL §236(B)(3)). Timing matters: in 2021 the Court of Appeals held that the acknowledgment has to be made at or near the time of signing, not added years later (Anderson v. Anderson).
Can a notary certify a copy of a document in New York?
No. The Department of State says a New York notary has no authority to issue certified copies. Get a certified copy from the office that keeps the original, such as the Health Department for a birth certificate or the City Register or county clerk for a recorded deed. In a New York court case, an attorney can certify a copy (CPLR 2105). For a private paper, ask the receiver whether a statement you swear to before a notary, saying the copy is true and complete, will do. The one narrow exception: a notary may certify a paper copy of the signature page of a record that same notary notarized electronically (Executive Law §135-c).
What happens if a document that needed a notary was not notarized?
It depends on the document. A deed will not be recorded until it is acknowledged, though the signer can acknowledge an existing signature later. A power of attorney is not properly executed, so a bank can refuse it. A marital agreement without a proper acknowledgment is unenforceable, and for those agreements courts have refused acknowledgments added years after the signing. When in doubt, sign and acknowledge again, correctly.
How much does it cost to get a document notarized in New York?
State law caps a paper notarization at $2 per signer for an acknowledgment and $2 per oath (Executive Law §136), and an electronic notarization at $25 per act. Many banks do it free for customers. A mobile notary also charges for the visit; ours is a flat rate by borough, from $125 in Manhattan, and every fee shows before you book. Full price guide.