A notary stamp lasts exactly as long as the notary’s commission behind it, which in most states runs four years. The physical device itself has no built-in expiration, but the moment the commission lapses, the stamp loses all legal authority to perform new notarial acts. Anything notarized while the commission was active stays valid permanently.
Commission Terms Set the Clock
Every notary public holds a commission issued by a state authority, usually the Secretary of State. That commission runs for a fixed term, and the stamp is only usable during that window. Four-year terms are the most common, but terms range from two years to ten depending on the state. A handful of states historically granted lifetime commissions, though that practice has largely disappeared.
Most states require the stamp itself to display the expiration date, along with the notary’s name and state of commission. Some also require a commission number or the county. If you’re looking at a stamped document and want to know whether the notarization is currently authoritative, the expiration date printed on the impression tells you.
The Physical Stamp Wears Out Separately
The stamp device, whether a self-inking rubber stamp or a metal embosser, doesn’t have a shelf life on paper, but it does wear out through use. Rubber degrades, ink pads dry, and embosser plates lose sharpness. Every notarization requires a legible impression showing all required information, so a stamp producing blurry or incomplete impressions is effectively dead even if the commission is still active.
A replacement self-inking stamp typically costs between $20 and $45 and must reflect the current commission details. Replacing the device does not extend or restart the commission; it just keeps the notary functional through the existing term.
Digital Seals for Online Notarization
At least 44 states and the District of Columbia now authorize remote online notarization, where there’s no physical stamp at all. Notaries in those states use an electronic seal backed by a digital certificate that uses public key infrastructure encryption to create a tamper-evident mark on the document.
Those digital certificates carry their own expiration dates, typically tied to the commission term, and must be renewed alongside the commission. If the certificate expires or is revoked, the electronic seal stops working, the same way a physical stamp becomes invalid when the commission lapses.
Notarized Documents Don’t Expire
This is where people most often get confused. The stamp has a limited life. A document properly notarized while the commission was active stays notarized permanently. The notary’s later retirement, commission expiration, or even death doesn’t undo a valid notarization.
What the notarization proves is narrow: the signer appeared before the notary, showed satisfactory identification, and signed the document on a specific date. That proof doesn’t erode. A deed notarized in 2005 by a notary whose commission expired in 2008 is still validly notarized today.
The document itself can still have time limits, though. A notarized power of attorney can be revoked or contain its own expiration date. A notarized contract can be breached and litigated within a statute of limitations. The notarization doesn’t protect the underlying document from any of that. It only confirms what happened at the signing table.
What If the Commission Was Already Expired?
A notarization performed after the commission lapsed is a different situation. That notarization may be invalid, and the notary may face legal consequences for performing it. In most states, acting as a notary without a valid commission is a misdemeanor or grounds for civil liability.
Some states have curative statutes that can rescue an otherwise defective notarization under specific conditions, but these vary widely and shouldn’t be relied on. If you discover a document was notarized by someone whose commission had expired, the safe move is to have it re-notarized by a currently commissioned notary. Title companies and banks will typically insist on this before accepting the document.
When the Commission Ends
Once the term ends, the notary loses all authority to perform notarial acts, and use of the stamp must stop immediately. The Revised Uniform Law on Notarial Acts, a model law adopted in a growing number of states, requires notaries to disable their stamping device upon commission expiration by destroying, defacing, or otherwise securing it against use.
For an ink stamp, that generally means cutting or gouging the rubber face so it can’t produce a readable impression. For an embosser, it means removing and bending or smashing the metal plate. The point is to make sure nobody, whether a thief or a well-meaning family member, can use the device to produce fraudulent notarizations. States that haven’t adopted the model law may have their own requirements or be silent on the issue, but destroying the old device is the prudent choice either way.
Renewing Before Expiration
There is no automatic renewal. If you don’t apply for a new term before the current one expires, your commission lapses and the stamp becomes invalid. Most states require you to complete renewal, including any required education, bonding, and fees, before the old commission runs out. Starting at least 60 days before expiration is a reasonable timeline, though state lead times vary.
Renewal costs usually include a government filing fee of roughly $10 to $60, plus a surety bond required in most states. Bond amounts range from $500 to $50,000 depending on the state, and the premium a notary actually pays is a fraction of that, often between $30 and $130 for a four-year term. You’ll also need a new stamp reflecting the updated commission dates.
If a gap opens between the old commission expiring and the new one taking effect, no notarizations can happen during that window, even with a renewal application already submitted. The authority flows from the active commission, not the paperwork in progress.