Notarizing a Bill of Sale: When It Is Required and How to Do It
Most bills of sale never see a notary, and that is perfectly fine. But a few states require notarization for vehicle transfers, and for a big-ticket sale it can be worth doing even when it is optional. Here is when you actually need a notary, what one does (and does not) verify, and how to get it done right.
When notarization is required
A plain bill of sale is legally binding the moment both parties sign it. Notarization becomes mandatory only in specific cases:
- A few states require it for vehicles. A small number of states require a notarized signature to transfer a vehicle. The requirement usually attaches to the title or a state form, with the bill of sale alongside it.
- Some documents always need it. A vehicle power of attorney, for example, requires notarization in most states even though a bill of sale does not.
- Some states want a witness instead. A witness signature is a lighter alternative that a few states accept in place of a notary.
Confirm your state before signing with our Notarization Checker.
What a notary actually verifies
This is the part people misunderstand. A notary is a state-commissioned official whose job is narrow: confirm that the people signing are who they say they are, and that they are signing of their own free will. The notary then stamps the document and logs it in a journal. A notary does not vouch that the price is fair, that the car runs, or that the deal is a good one. The value of notarization is that it makes the identities and the date nearly impossible to dispute later.
Why notarize even when it is optional
- It locks in the exact date of sale, which settles any later question about who owned the vehicle when.
- It makes a forged-signature claim much harder for either party to raise.
- Some buyers and lenders simply prefer it for expensive vehicles or equipment.
For why that date matters so much on the seller side, see our guide on the release of liability after selling a car.
How to get a bill of sale notarized
- Fill out the bill of sale completely, but do not sign it yet.
- Both parties bring valid, unexpired photo ID.
- Sign in front of the notary, who will confirm your identities.
- The notary stamps, signs, and records the act, and you pay a small fee per signature.
- Keep the notarized original; make a copy for each party.
Notaries are available at most banks and credit unions (often free for members), shipping and print stores, and through online notarization in states that permit it.