The title signature line is on the back, and you sign it only when the buyer is present
The signature line for selling a car is printed on the back of your title certificate, usually in a section labeled "Seller's Signature" or "Assignment of Title." You sign this line in front of the buyer — do not sign it beforehand. The buyer will also sign on the same document, and both signatures together transfer ownership from you to them. Some states require the buyer to sign in front of a notary public; others do not.
The exact location and format varies slightly by state. Your title might have one signature line, two lines (one for you and one for a co-owner), or a separate assignment section. Before you meet the buyer, locate this section on your title so you know where to write. If you cannot find it, contact your state's Department of Motor Vehicles — they can tell you the exact spot and whether a notary is required.
Key Takeaways
- Sign the title only when the buyer is physically present, never in advance, because your signature transfers ownership to whoever's name appears as the buyer.
- The signature line is on the back of the title certificate in a section marked for the seller, and you will sign your name exactly as it appears on the front of the title.
- Many states require the buyer's signature to be notarized, which means you both may need to visit a notary public together or the buyer may need to do it separately before submitting the title to the DMV.
- After you and the buyer sign, the buyer submits the title to the DMV along with their registration paperwork to complete the transfer.
- If your title has two owners listed, both must sign the seller's section, and some states require both signatures to be notarized.
Locating the signature line on your specific title
Open your title document and turn it over to the back. Look for a section with headings like "Seller's Signature," "Assignment," "Transfer of Ownership," or "Reassignment." This section will have one or more blank lines where you write your name. Some titles have this section in the lower half of the back; others have it in a box on the right side. The exact placement depends on your state.
If your title is a multi-part form (some states issue titles with a duplicate copy attached), the signature section appears on each copy. You will sign the same line on both the original and the duplicate. Do not separate the copies until you have signed both.
If you cannot locate the signature section or your title looks different from what you expected, call your state's DMV before you meet the buyer. They can confirm the correct location and tell you whether your state requires notarization. This takes five minutes and prevents confusion at the moment of sale.
How to sign correctly so the transfer is valid
Sign your name exactly as it appears on the front of the title, in the same order and spelling. If your name on the front reads "John Michael Smith," sign it that way on the back — not "J.M. Smith" or "John Smith." The DMV uses the signature to verify that the person on the title is the person transferring it.
Use a pen, not a pencil. Write clearly and stay within the lines provided. Do not cross out or white-out mistakes; if you make an error, ask the buyer to wait while you contact the DMV to find out whether you need a corrected title or whether the DMV will accept the document as-is. Some states allow one crossed-out signature if you initial the correction; others do not.
Sign in black or blue ink. Some states' DMV systems scan titles, and other colors may not read clearly. After you sign, do not hand the title to the buyer to hold until they submit it — keep it in a safe place until the handoff, because your signature on an unsigned buyer line could create a legal problem if the title is lost or misused.
When the buyer's signature needs to be notarized
About half of U.S. states require the buyer's signature to be notarized; the other half do not. Check your state's DMV website or call them to confirm whether notarization is required in your state. If it is, the buyer must have their signature witnessed and certified by a notary public before or at the same time you sign.
You have three options: (1) you and the buyer both go to a notary together and sign in front of the notary; (2) you sign first, then the buyer takes the title to a notary to sign and have it certified; or (3) the buyer signs and gets notarized before you meet, then you sign when you hand over the keys. Option 1 is cleanest because both of you see the document signed and notarized in one place. Option 2 or 3 works if the buyer prefers to handle notarization on their own time.
Notaries are available at banks, UPS stores, some pharmacies, and independent notary offices. The cost is usually $5 to $15 per signature. The notary will check the buyer's ID, watch them sign, and stamp the title with their seal and signature. This process takes about five minutes.
If two owners are listed on the title
When a title lists two owners (for example, "John Smith and Jane Smith"), both owners must sign the seller's section on the back. Some states require both signatures to be notarized; others require only one. Check your state's rules before you meet the buyer.
If the two owners are married or in a domestic partnership, some states allow one owner to sign on behalf of both if they have a power of attorney or if state law presumes joint authority. Call the DMV to confirm what your state allows. If both signatures are required and only one owner is present at the sale, the sale cannot close until both owners sign.
What happens after you sign
Once you and the buyer have both signed the title (and had it notarized if your state requires it), the buyer takes the title to the DMV along with their registration paperwork, proof of insurance, and payment of any transfer fees. The DMV processes the paperwork and issues a new title in the buyer's name. This usually takes one to three weeks, though some states offer expedited processing for an extra fee.
You are no longer the owner once the buyer submits the title to the DMV, even if the new title has not been issued yet. Your responsibility ends when you hand over the keys and the signed title. Keep a copy of the signed title for your records in case a question arises later about the sale date or the buyer's identity.
If the buyer does not submit the title within a reasonable time (usually 30 days), some states send you a notice asking you to confirm the sale. Respond promptly so the DMV knows you are no longer responsible for the vehicle. If the buyer never registers the car and it is later involved in an accident or crime, the DMV may still contact you as the last registered owner, so having a copy of the signed title protects you.
Common mistakes to avoid when signing
Do not sign the title before the buyer is present. Once your signature is on the document, anyone who fills in their name as the buyer can claim ownership. If you sign early and the title is lost or stolen, someone else could register the car in their name.
Do not sign the buyer's section by mistake. The title has separate lines for seller and buyer. Sign only the seller's line. If you accidentally sign the buyer's line, contact the DMV when ready — you may need a corrected title.
Do not let the buyer leave with an unsigned title. The buyer must have your signature on the document before they can register the car. If you hand over the keys without signing, you remain the legal owner and are responsible for the vehicle.
Do not assume notarization is not required. If your state requires it and you skip it, the DMV will reject the title and the buyer will have to contact you to get it notarized. Confirm the requirement before you meet the buyer so there are no delays.
Frequently Asked Questions
Can I sign the title before I meet the buyer?
No. Do not sign the title until the buyer is present. Once you sign, anyone can fill in their name as the buyer and claim ownership of the car. Wait until the moment of the sale to sign, with the buyer watching.
What if I make a mistake when signing?
Do not cross out or erase. Contact your state's DMV and ask whether they will accept the title with a mistake or whether you need a corrected title. Some states allow one correction if you initial it; others require a new title. The DMV can tell you the fastest option.
Do I need to sign in front of a notary?
Only if your state requires the buyer's signature to be notarized. About half of states do; half do not. Check your state's DMV website or call them to confirm. If notarization is required, the buyer must have their signature witnessed by a notary, but you may not need to be present.
What if one of two owners cannot be present to sign?
Both owners must sign unless one has a power of attorney or your state's law allows one owner to sign on behalf of both. Call the DMV to confirm what your state allows. If both signatures are required and only one owner is available, the sale cannot close until both owners sign the title.
What do I do with the title after we both sign?
Hand the signed title to the buyer. They submit it to the DMV along with their registration paperwork and fees. Keep a copy for your records. You are no longer the owner once the buyer submits the title to the DMV, even if the new title has not been issued yet.