A notary is required when a statute or the institution receiving your document demands independent verification of your identity and signature. In practice, that means a short list: real estate deeds, powers of attorney, sworn affidavits, self-proving affidavits attached to wills, and certain business and financial filings. Most everyday contracts don’t need one. If you’re wondering when a notary is required, the quickest answer is to look at the signature page and ask the receiving agency; the document itself usually tells you.
Documents That Require a Notary
Real Estate Deeds and Mortgage Papers
Property deeds are the most universally notarized documents in the United States. Warranty deeds, quitclaim deeds, and deeds of trust all have to be notarized before the county recorder’s office will accept them for recording. An unnotarized deed won’t make it into the public land records, which means the transfer has no legal effect against third parties. Mortgage documents signed at closing, including the promissory note and deed of trust, require notarization as well.
Powers of Attorney
A power of attorney grants someone else legal authority to act for you on financial, medical, or legal matters. Most states require the principal’s signature to be notarized, though a few accept witnessed signatures as an alternative.1Justia. Power of Attorney Laws: 50-State Survey Even where notarization isn’t strictly mandatory, banks and brokerages routinely refuse to honor a power of attorney without a notary seal. If you’re drafting one, get it notarized regardless of what your state’s minimum requires.
Self-Proving Affidavits for Wills
A basic will does not need to be notarized in most states. What it needs are the signatures of two witnesses who watched the testator sign. Attaching a notarized self-proving affidavit is a separate step, and it changes the probate picture significantly. In this affidavit, the witnesses swear before a notary that they watched the signing and that the testator appeared competent and willing. All states except the District of Columbia, Maryland, Ohio, and Vermont allow self-proving wills created this way.2Legal Information Institute. Self-Proving Will
The payoff comes after the testator dies. Without a self-proving affidavit, the probate court may need the original witnesses to appear and testify that the will is authentic, which can be hard to arrange years later. With the affidavit, the notarized document substitutes for that testimony and the court can accept the will without a validity hearing.2Legal Information Institute. Self-Proving Will
Affidavits and Sworn Statements
An affidavit is a written statement made under oath. The notary’s role here goes beyond watching a signature: the notary administers the oath itself, requiring you to swear or affirm that the contents are true under penalty of perjury, and you then sign in the notary’s presence.3U.S. Department of State Foreign Affairs Manual. 7 FAM 850 Taking an Affidavit Courts, immigration proceedings, and government agencies regularly require affidavits as a way of taking sworn testimony without a courtroom appearance.
Certain Business and Financial Documents
Some business filings require notarization, and this one depends on the state. Common examples include articles of incorporation, partnership agreements, commercial loan documents, and vehicle title transfers. The common thread is that these documents create or transfer significant financial obligations, and the receiving agency wants proof the signer’s identity was verified by an impartial party.
Documents That Usually Don’t Need One
Many everyday legal documents are fully enforceable without a notary. Standard contracts between two parties, including lease agreements, employment contracts, and service agreements, are binding once both sides sign. Most court filings are submitted under penalty of perjury rather than through notarization. Insurance claims, medical consent forms, and basic business invoices also fall outside any notarization requirement.
The test is whether a statute or the receiving institution requires it. A contract doesn’t become more enforceable because it was notarized. If nobody is asking for a notary seal, you almost certainly don’t need one.
How to Tell by Looking at the Document
The fastest check is the signature page. If the document needs to be notarized, it will almost always include a preprinted notarial certificate near the signature line. Look for language like “Acknowledged before me,” “Sworn to and subscribed before me,” or “State of _____, County of _____” followed by blank spaces for the notary’s signature, seal, and commission expiration date.
The type of certificate tells you which notarial act is involved. An acknowledgment means the notary is confirming your identity and that you signed voluntarily. A jurat, sometimes labeled “verification upon oath,” means you’ll be required to swear under oath that the contents are truthful. The distinction matters because a jurat carries perjury liability; an acknowledgment does not.
If there’s no preprinted certificate and you’re unsure, contact the institution that will receive the document. The bank, court clerk, county recorder, or agency can tell you whether they’ll require a notarized original.
What to Bring and How the Signing Works
Bring the complete, unsigned document. This is the most common mistake: signing at home and then showing up expecting a stamp. A notary must watch you sign, and many will make you sign again on a fresh copy if you’ve already signed.
You’ll also need a valid, unexpired government-issued photo ID. A driver’s license, state ID card, U.S. passport, or military ID will work in every state. Some states also accept foreign passports and permanent resident cards. The ID must include your photo, your signature, and an identifying number. Social Security cards, birth certificates, and school IDs do not qualify.
The notary examines your ID, compares it to you in person, and may ask you to confirm your name and the nature of the document. You then sign while the notary watches. For a jurat, the notary administers an oath or affirmation before you sign.3U.S. Department of State Foreign Affairs Manual. 7 FAM 850 Taking an Affidavit After witnessing the signature, the notary completes the certificate, applies the official seal, and records the transaction in a journal.
Most banks and credit unions have a notary on staff and will notarize documents for account holders at no charge. Shipping stores, law offices, tax preparers, insurance agencies, public libraries, and courthouses often have notaries available as well.
When You Can’t Appear in Person
Remote online notarization lets you complete the process over a live video call instead of appearing in person. You connect with a commissioned notary through a secure platform, verify your identity with knowledge-based authentication questions and a photo of your government ID, and sign electronically while the notary watches and records the session. The notary then applies a digital seal.
As of 2025, 44 states and the District of Columbia have enacted laws permitting remote online notarization for real estate and financial transactions. The remaining states either restrict it to limited circumstances or haven’t passed enabling legislation yet. Federal legislation called the SECURE Notarization Act, which would require all states to recognize remote online notarizations performed in other states, has been introduced in Congress but has not yet been enacted.4Congress.gov. H.R.1777 – SECURE Notarization Act
Online notarization typically costs more than an in-person visit. A standard in-person notarization might run $2 to $25 per signature depending on your state; online platforms often charge $25 or more for the first seal. The convenience is often worth it for time-sensitive documents or if you live somewhere without easy access to a notary.