Basic Bill of Sale for a Car: What It Is and What It Should Include

A bill of sale is one of the most straightforward documents in any private vehicle transaction — but it's also one of the most commonly skipped or mishandled. Whether you're buying or selling a used car, understanding what goes into a basic bill of sale can protect both parties and help the title transfer process go smoothly.

What a Car Bill of Sale Actually Does

A bill of sale is a written record that a vehicle changed hands between two private parties. It documents the terms of the transaction — who sold what, to whom, for how much, and when.

It's not a title. It doesn't transfer ownership by itself. But it supports the title transfer by providing proof of the transaction, and in many states it's required — or at least strongly recommended — when registering a newly purchased vehicle at the DMV.

For the seller, a bill of sale helps establish that the vehicle is no longer their responsibility after the sale date. For the buyer, it provides documentation of what was agreed to, including the sale price (which affects how sales tax is calculated in many states).

What a Basic Bill of Sale Should Include

A complete, useful bill of sale generally covers the following:

Vehicle information:

• Year, make, and model
• Vehicle Identification Number (VIN)
• Body style (sedan, truck, SUV, etc.)
• Odometer reading at the time of sale
• License plate number (optional but helpful)

Transaction details:

• Sale price (the actual amount paid)
• Date of sale
• Payment method (cash, check, etc.)
• Whether the sale is "as-is" or includes any conditions

Seller information:

• Full legal name
• Address
• Signature

Buyer information:

• Full legal name
• Address
• Signature

Some states have official bill of sale forms available through the DMV. Others accept any written document that contains the required information. A few states don't require a bill of sale at all for private sales — though having one is still considered good practice regardless of what's legally required.

"As-Is" Language and What It Means

Most private car sales are sold as-is, meaning the buyer accepts the vehicle in its current condition with no warranties or guarantees from the seller. Including explicit as-is language in the bill of sale helps protect the seller from later claims that they misrepresented the vehicle's condition.

This doesn't eliminate the buyer's ability to pursue legal action if outright fraud occurred — for example, if a seller knowingly concealed a salvage title or tampered with the odometer. But it does set clear expectations about the transaction.

How Sale Price Affects Taxes 📋

One detail buyers and sellers sometimes overlook: the sale price recorded on the bill of sale often determines how much sales tax the buyer pays when registering the vehicle.

Some states calculate sales tax on the bill of sale price. Others use the vehicle's fair market value — whichever is higher. A few states don't charge sales tax on private vehicle sales at all. This is one of the clearest examples of why state rules matter so much here. What's standard practice in one state may not apply in another.

Artificially lowering the reported sale price to reduce taxes can constitute fraud in many jurisdictions.

When a Bill of Sale Isn't Enough

A bill of sale handles the transaction record. It doesn't replace:

Some of these are separate documents; others are part of the title itself, depending on the state. The bill of sale works alongside these — not instead of them.

Notarization: Required in Some States, Not Others

Certain states require a notarized bill of sale as part of the vehicle registration or title transfer process. Others don't require notarization at all. 🖊️

If you're in a state that requires it, the signatures on the bill of sale must be witnessed and stamped by a licensed notary public. Skipping this step can delay or block the title transfer process at the DMV.

Where the Variables Come In

What makes a bill of sale "complete" or "sufficient" depends on factors specific to your situation:

• Your state's DMV requirements — some states have mandatory forms; others accept handwritten documents
• Whether the vehicle is a regular passenger car, a commercial vehicle, a motorcycle, a trailer, or an off-road vehicle — documentation requirements often differ
• The age and value of the vehicle — older vehicles may have different titling rules in some states
• Whether there's an existing lien — adds additional documentation requirements
• Whether the sale involves a dealer or a private party — dealers typically provide their own documentation; private sales put more responsibility on both individuals

A bill of sale that works perfectly in one state may be missing a required field in another. The format, notarization requirements, and whether an official state form must be used are all details that vary — and they're details that only your state's DMV can answer definitively for your specific transaction.