How to Write a Bill of Sale: A Step-by-Step Guide for Any Sale

A bill of sale is a written record that proves an item changed hands from a seller to a buyer for an agreed amount on a specific date. It is one of the simplest legal documents you will ever fill out, yet people still get it wrong by leaving out a serial number or forgetting to write the price. The good news is that the same basic structure works for almost anything you sell, so once you learn the fields you can reuse the format for a car, a boat, a piece of equipment, or a used appliance.

In this guide you will see what every bill of sale needs, how to fill in each line, when a notary actually matters, and who should keep a copy. The goal is a clean document that protects both sides if a question comes up months later.

What Every Bill of Sale Needs

No matter what you are selling, a usable bill of sale includes the same core pieces. The first is the parties: the full legal name and address of the seller and the buyer. The second is a clear description of the item, detailed enough that nobody could confuse it with something else. The third is the price and how it was paid, whether that was cash, a check, or a trade. The fourth is the date of the sale. The fifth is an as-is statement if the item is sold without a warranty. The last is the signatures of both people.

If your item is a titled vehicle or a trailer, you will also want to record identifying numbers such as the VIN, the year, the make, and the model. For a boat you would add the hull identification number. The more specific you are, the harder it is for either side to dispute what was sold.

Think of the document as a snapshot of the deal frozen in time. Six months from now, neither you nor the buyer will remember the exact mileage, the exact amount, or the precise condition you agreed on. The bill of sale remembers for you. That is why it is worth spending five extra minutes getting the details right rather than scribbling a quick note on a napkin and hoping it never comes up.

Filling It Out Field by Field

Start with the parties. Write the seller's name exactly as it appears on any title or ID, then the buyer's name the same way. Add a mailing address for each. If two people own the item together, list both sellers and have both sign.

Next, describe the item. For a car, that means year, make, model, VIN, color, and the odometer reading. For a generic item like a riding mower or a sofa, write the brand, the model or serial number if there is one, the condition, and any flaws you want on the record. A short, honest description does more to protect you than a long vague one.

Then enter the price. Write the dollar amount in numbers and, if you like, spell it out as well so there is no confusion. Note how the buyer paid. If money is changing hands in installments, say so and describe the schedule. Finally, fill in the date the sale actually happened, not the day you printed the form.

As-Is Wording and Why It Matters

Most private sales are sold "as-is," which means the buyer accepts the item in its current condition with no promise from you that it will keep working. Putting a plain as-is line in the document is one of the most useful things you can do as a seller. It tells the buyer, in writing, that there is no warranty and that any problem after the sale is theirs.

If you do promise something specific, such as a working engine for 30 days, write that down too. Do not rely on a handshake. A bill of sale only protects you for the terms it actually states, so spell out exactly what you are and are not standing behind.

When You Should Notarize

Many sales do not need a notary at all. A signed bill of sale between two private parties is usually valid on its own. That said, some states require a notarized signature for certain vehicle or trailer transfers, and a notary adds a layer of proof that the people who signed are really who they say they are.

Because the rule varies, the safe move is to check whether your state or your specific item calls for it before you sign. If you are not sure where your transaction falls, run it through our notarization checker and look at the document types we support on the document types page so you start with the right form.

Signatures and Who Keeps Copies

Both the seller and the buyer should sign and date the document at the same time, ideally in front of each other. If your state wants a notary, sign in front of the notary, not before. Print each name under the signature so it stays readable.

Make at least two copies, or sign two originals. The seller keeps one and the buyer keeps one. If the item is a vehicle, the buyer will often need the bill of sale and the signed title to register at the DMV, so give the buyer a clean copy on the spot. Keeping your own copy is what lets you prove, later, that you no longer own the item and are not responsible for it.

Store your copy somewhere you will actually find it again. A folder with your other vehicle or property records is fine, and a photo of the signed document on your phone is a good backup. If the sale was for something valuable, hanging onto that record for a few years is sensible, because disputes and tax questions do not always show up right away.

That is the whole process. Get the parties right, describe the item clearly, state the price and the date, add as-is wording, and sign. Do that and your bill of sale will hold up when you need it. None of these steps takes long on their own, and together they turn a casual handoff into a record you can stand behind.