How to Complete a Missouri Vehicle Bill of Sale

What a Missouri vehicle bill of sale is and why you need one

A Missouri vehicle bill of sale is a document that records the transfer of ownership when one person sells a vehicle to another. It serves as proof that the sale took place, who bought it, who sold it, and for how much. Missouri does not require a bill of sale by law, but the Missouri Department of Revenue strongly recommends having one because it protects both the buyer and the seller if questions about ownership arise later.

Without a bill of sale, you have no written record of the transaction. If the buyer later claims they never paid, or if the seller disputes that the vehicle was actually sold, either party has little recourse. The bill of sale becomes your evidence of what happened and when.

Key Takeaways

Missouri does not legally require a bill of sale, but the Department of Revenue recommends one to protect both buyer and seller.
The bill of sale should include the vehicle identification number (VIN), the sale price, the date of sale, and the signatures of both buyer and seller.
You can use the official Missouri form (Form 4345) or create your own bill of sale as long as it contains all required information.
The buyer will need the bill of sale when registering the vehicle with the Missouri Department of Revenue.

What information must go on a Missouri bill of sale

The bill of sale should include the vehicle identification number (VIN), which appears on the dashboard and on the title document. It should also show the year, make, and model of the vehicle. Include the sale price in dollars, the date of the sale, and the full names and addresses of both the buyer and the seller.

Both the buyer and seller must sign and date the document. Some people also include the vehicle's odometer reading at the time of sale, which can be useful if questions arise about the vehicle's condition or mileage history. If there are any liens on the vehicle (meaning a lender still has a claim to it), that should be noted as well.

Using the official Missouri form versus creating your own

The Missouri Department of Revenue provides Form 4345, which is a standardized bill of sale template. You can read it from the department's website or pick up a copy at any Missouri license office. Using the official form ensures you have included everything the state expects to see.

You are not required to use Form 4345. You can write your own bill of sale on plain paper as long as it contains all the information listed above — the VIN, vehicle details, sale price, date, buyer and seller names and addresses, and both signatures. Handwritten bills of sale are acceptable. What matters is that the document clearly records who sold what to whom, for how much, and when.

How the buyer uses the bill of sale when registering the vehicle

When the buyer takes the vehicle to the Missouri Department of Revenue to register it, they will need to present the bill of sale along with the title document (also called the certificate of ownership). The bill of sale serves as supporting evidence of the purchase and helps the department process the title transfer into the buyer's name.

The buyer should bring the original bill of sale or a clear copy. If the bill of sale is handwritten, make sure it is legible. The Department of Revenue will not accept a bill of sale that is so faded or damaged that the information cannot be read.

What to do if the vehicle has a lien or loan against it

If the seller still owes money to a bank or lender on the vehicle, that lender has a legal claim to the vehicle called a lien. The lien will appear on the title document. The seller cannot transfer clean ownership to the buyer until the lien is paid off.

In most cases, the seller pays off the loan at the time of sale using the money from the buyer. The lender then releases the lien and sends a new title to the seller, who passes it to the buyer. If the lien is not paid off before the sale, note this clearly on the bill of sale so the buyer understands they are purchasing a vehicle with an outstanding loan against it. The buyer and seller should have a separate agreement about how and when the loan will be paid off.

Protecting yourself as a buyer or seller

As a seller, keep a copy of the signed bill of sale for your records. This protects you if the buyer later has an accident or receives a traffic ticket and claims they did not own the vehicle at that time. Your copy of the bill of sale proves when ownership transferred.

As a buyer, do not hand over money until you have a signed bill of sale in your possession. Make sure the VIN on the bill of sale matches the VIN on the vehicle itself — check the dashboard and the title. If they do not match, do not complete the purchase. Also verify that the seller's name on the bill of sale matches the name on the title document, which proves the seller actually owns the vehicle.

What happens if you lose the bill of sale after the sale

If you completed the sale but lost your copy of the bill of sale, you can ask the other party for another signed copy. If they refuse or cannot be reached, the situation becomes more difficult. As the buyer, you can still register the vehicle using the title document alone, though having the bill of sale makes the process smoother. As the seller, a lost bill of sale means you have no written proof of when you sold the vehicle, which could create problems if questions arise later.

This is why it is important to make a copy of the bill of sale when ready after both parties sign it. Store one copy with your vehicle records and give the other to the buyer or seller, depending on which role you are in.

Frequently Asked Questions

Can I sell a vehicle in Missouri without a bill of sale?

Yes, Missouri does not legally require one. However, the Department of Revenue recommends having a bill of sale because it protects both you and the buyer. Without it, you have no written proof of the sale if a dispute arises later.

What if the buyer and I disagree on the sale price?

This is why writing down the agreed-upon price on the bill of sale before either party signs is critical. Once both of you have signed, the price on the document is the official record of what was paid. If you have not yet signed, do not sign until you both agree on the amount and it is written clearly on the form.

Do I need to notarize the bill of sale?

Missouri does not require the bill of sale to be notarized. A notary's signature adds an extra layer of verification that both parties signed willingly, but it is not necessary for the document to be valid or for the buyer to register the vehicle.

What if I am buying a vehicle from a private person, not a dealer?

A bill of sale is just as important in a private sale as it would be in any other sale. In fact, private sales are where disputes most often occur because there is no dealership paperwork to fall back on. Use the same process: get a signed bill of sale with all required information before handing over money.

Can I use a bill of sale from another state?

You can use any bill of sale format as long as it contains the required information — VIN, vehicle details, sale price, date, and signatures. However, using the official Missouri Form 4345 ensures the Department of Revenue will recognize it when ready when the buyer registers the vehicle.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.