Last updated: May 2026
A notary stamp is an official seal containing a notary public's name, state, commission number, and expiration date, used to authenticate documents during notarial acts. It produces an inked or embossed impression that verifies the notary's authority and deters fraud. Most states require an inked stamp because embossed seals don't photocopy well, and both physical and electronic stamps carry equal legal weight in authorized jurisdictions. This guide covers stamp types, state requirements, how to obtain one, and when it's legally required.
What Is a Notary Stamp?
A notary stamp is an official seal used by a commissioned notary public to authenticate documents. It typically contains the notary's name, their state, commission number, and commission expiration date — all the details needed to verify the notary's authority.
Think of it as the notary's official badge of authority, pressed directly onto a document. When you see that inked impression, it signals that a qualified, state-commissioned official witnessed the signing, verified the signer's identity, and confirmed the document's execution.
Every state requires notaries to use some form of official notary stamp or seal when completing a notarial act. The specific requirements — shape, size, required text — vary by state, but the core function is the same everywhere.
What Does a Notary Stamp Do?
A notary stamp does three things at once.
First, it identifies the notary. The stamp contains enough information for anyone — a court, a bank, a government office — to look up the notary's commission and confirm they were authorized to act.
Second, it authenticates the document. The stamp signals that a notarial act actually took place. Without it, there's no official record that a notary was involved.
Third, it deters fraud. A forged signature is relatively easy to fake. A notary stamp, especially a self inking notary stamp with a crisp, consistent impression, is harder to replicate convincingly — and any attempt to forge one is a serious crime.
Types of Notary Stamps
Not all notary stamps work the same way. Here's a breakdown of the main types you'll encounter.
Comparison of Notary Stamp Types
| Type | How It Works | Best For | Typical Cost |
|---|---|---|---|
| Self-inking stamp | Built-in ink pad re-inks automatically | High-volume notaries | $20–$50 |
| Pre-inked stamp | Ink is embedded in the die | Clean, detailed impressions | $25–$60 |
| Rubber stamp with pad | Separate ink pad required | Occasional use | $10–$25 |
| Embosser (crimp seal) | Raises the paper, no ink | States that allow dry seals | $20–$45 |
| Electronic/digital seal | Applied digitally in RON sessions | Remote online notarization | Varies by platform |
The self inking notary stamp is by far the most popular choice among active notaries. It produces a consistent impression every time and doesn't require a separate ink pad. For notaries handling dozens of documents per week, that convenience adds up.
The embosser — sometimes called a notary seal — creates a raised impression without ink. Some states accept it as a standalone seal; others require an inked stamp alongside it. More on that distinction below.
For remote online notarization (RON), notaries use an electronic notary stamp — a digital equivalent that gets applied to the document within the RON platform. BlueNotary's platform, for example, generates a compliant digital seal automatically during each notarial session.
Notary Stamp vs Notary Seal: What's the Difference?
People use "stamp" and "seal" interchangeably, but they're technically different tools.
A notary stamp produces an inked impression. A notary seal (embosser) creates a raised, embossed impression by crimping the paper. Historically, wax seals were used; the modern embosser is the mechanical descendant of that tradition.
Here's the practical difference: most states now require an inked notary stamp because embossed impressions don't photocopy or scan well. A crimp seal on a photocopied document shows up as a blank circle. That's a problem when documents travel through banks, courts, or government agencies.
Some states — like California — require an inked rubber stamp and don't accept an embosser alone. Others allow either. A handful require both. In our work with clients navigating multi-state notarizations, we've seen documents rejected weeks after signing simply because the notary stamp type didn't match the destination state's requirements. Always check your specific state's rules before ordering supplies.
How to Get a Notary Stamp
You can't walk into an office supply store and buy a notary stamp off the shelf — at least not a legal one. You need to be a commissioned notary first.
Here's the general process:
Complete your state's notary application: Most states require you to submit an application, pay a fee, and in some cases pass an exam or complete training. The National Notary Association (NNA) offers state-specific training programs and is a widely recognized resource for new notaries.
Receive your commission: Once approved, your state issues a notary commission. This is your official authorization to act as a notary.
Order your notary stamp: With your commission in hand, you order a notary stamp from an approved vendor. The stamp must be customized with your exact name as commissioned, your state, commission number, and expiration date. The NNA notary stamp program is one of the most commonly used ordering services, but many office supply vendors and online stamp makers offer compliant options.
Verify compliance: Before using your stamp, confirm that its size, shape, and content meet your state's specific requirements. A non-compliant stamp can invalidate a notarization.
Secure your stamp: Your notary stamp is your responsibility. Never leave it unattended or lend it to anyone. If it's lost or stolen, report it to your state's notary commissioning authority immediately.
Notary Stamp Requirements by State
State requirements for notary stamps vary more than most people expect. Here are the key variables:
- Shape: Some states require a rectangular stamp; others require a circular seal; several allow either.
- Size: Most states specify minimum and maximum dimensions (commonly 1.5" to 2" for circular seals).
- Required text: At minimum, most states require the notary's name, the state name, and commission expiration date. Many also require the commission number and/or county.
- Ink color: Several states specify black or blue ink. California requires a seal that reproduces legibly in black ink.
- Inked vs. embossed: As noted above, most states now require an inked impression.
For document notarization after car accidents, real estate closings, and other high-stakes transactions, a non-compliant notary stamp can cause documents to be rejected — sometimes weeks after the fact. Getting the stamp right the first time matters.
If you're unsure about your state's exact requirements, the National Notary Association's state requirements pages provide detailed, state-by-state guidance.
When Do You Need a Notary Stamp?
Not every notarized document looks the same, but a notary stamp is required any time a notarial act is performed. Common situations include:
- Real estate deeds and mortgage documents
- Powers of attorney and healthcare directives
- Affidavits and sworn statements
- Vehicle title transfers
- Wills and trust documents
- Business contracts requiring notarization
- Immigration and government forms
Key Insight: A document is not legally notarized without both the notary's signature and an official notary stamp. One without the other is incomplete — and many institutions will reject the document outright.
The notary stamp requirement extends to remote online notarization as well. In RON sessions, the electronic notary stamp serves the same legal function as a physical one. States that have authorized RON — and as of 2026, more than 40 states have passed RON legislation — specify exactly what the electronic seal must contain and how it must be applied.
If you're involved in our dirty little e-closing secret (the shift toward fully digital mortgage closings), you've likely already encountered electronic notary stamps without realizing it. The digital seal applied during a RON session carries the same legal weight as its physical counterpart.
Renewing Your Notary Stamp
Notary commissions don't last forever. Most states issue commissions for 4-year terms, though some are shorter. When your commission expires, your notary stamp is no longer valid — even if the physical stamp still produces a clear impression.
Renewing your notary stamp means going through the recommissioning process in your state, then ordering a new stamp with your updated commission number and expiration date. The old stamp should be destroyed or defaced to prevent misuse.
Keep an eye on your commission expiration date. When I first started processing notary renewals, I found that roughly a third of notaries miss their renewal window and end up with a gap in their commission — which means any notarizations performed during that gap are technically invalid. Many notaries set a calendar reminder 90 days out to start the renewal process, since state processing times vary. The NNA notary stamp renewal service is a common option that bundles the stamp order with commission renewal support.
Common Questions About Notary Stamps
Can I use my notary stamp in a different state?
No. A notary stamp is valid only in the state that issued your commission. If you're commissioned in Texas, you cannot perform notarial acts in Florida using your Texas stamp. Some states allow "notary by commission" across state lines in limited circumstances, but you'd need a separate commission for regular cross-state work.
What happens if I notarize a document without a stamp?
The notarization is likely invalid. Most institutions — banks, courts, government agencies — require a visible notary stamp to accept a notarized document. A notary's signature alone is not sufficient in most states. If you notarized without a stamp, the document typically needs to be re-notarized.
How long does a notary stamp last?
The stamp lasts until your commission expires, not until the physical stamp wears out. A self inking notary stamp can produce thousands of impressions before the mechanism degrades, but the legal validity ends on your commission expiration date. Order a new stamp when you renew your commission.
Is an electronic notary stamp legally valid?
Yes, in states that have authorized remote online notarization. An electronic notary stamp applied during a RON session carries the same legal weight as a physical inked stamp. The stamp must meet the state's specific requirements for electronic seals, which typically include the same identifying information as a physical stamp.
Where can I order a compliant notary stamp?
The NNA notary stamp program is one of the most widely used sources. Office supply retailers like Staples and Office Depot also offer notary stamp customization. For RON, platforms like BlueNotary generate compliant electronic seals automatically — you don't order a separate stamp.
Conclusion
A notary stamp is a small tool with significant legal weight. Getting the right one — compliant with your state's requirements, properly customized, and used correctly — protects every notarization you perform. Notarize documents remotely through BlueNotary — no physical stamp required, fully compliant electronic seals applied automatically in every session.
Written by the BlueNotary team — Remote Online Notary Services practitioners. Ready to get started? Visit BlueNotary to learn more.
