What notaries usually accept
A current, government-issued photo ID with a signature or physical description: a driver's license, state non-driver ID, passport or military ID. It should be unexpired. Ask the notary or the document's requester which forms they accept, since some institutions are stricter.
What usually does not work
Expired IDs, photocopies, photos of IDs on a phone, work badges, student cards without a government issuer, and library cards. If the ID is damaged so the photo or text cannot be read, the notary may refuse.
If you have no suitable ID
Some situations allow another way of establishing identity, such as the notary knowing you personally or a credible person who knows both you and the notary vouching for you. These options have strict rules and not every notary will use them. Call ahead and explain.
Names must make sense
The name on the document should match the name on the ID closely enough that the notary is satisfied it is the same person. If you have changed your name, bring the ID you have and say so up front. The notary cannot decide whether a name on a legal document is right for you.
Special cases
For hospital or care-facility signings, bring the ID to the bedside or ask a family member to find it in advance. For people who are unable to sign, the law has separate rules for someone signing at their direction; ask the notary before the visit.
Common questions
Can a notary accept an expired passport?
Generally not. Most notaries require unexpired ID. Ask in advance if yours has just lapsed.
Does the notary keep a copy of my ID?
A notary records the type of ID and details in a journal. Whether a copy is kept depends on the notary and the situation, so ask if it matters to you.
Do both signers need ID?
Yes. Every person whose signature is notarized has to be identified.
This guide is general information, not legal advice. Fees and procedures change; check with the office involved or an attorney for your situation.