What an Iowa auto bill of sale is and when you need one
An auto bill of sale is a written record that you and the other party sign when one of you sells a vehicle to the other. It documents the sale price, the vehicle details, and the date of transfer. In Iowa, a bill of sale is not required by law to transfer a vehicle title, but the Iowa Department of Transportation strongly recommends using one because it protects both the buyer and seller if a dispute arises later.
You need a bill of sale whenever you buy or sell a vehicle privately — that is, directly to another person rather than through a dealer. If you are trading in a vehicle at a dealership, the dealer handles the paperwork and you do not need a separate bill of sale. But if you are selling your car to a friend, family member, or stranger, or buying one from them, a bill of sale creates a paper trail showing who owned the vehicle, what was paid, and when the sale happened.
The bill of sale also serves as proof of the sale price, which matters for calculating sales tax when you register the vehicle in your name. Without a bill of sale, the county assessor may estimate the value based on market data, which could result in a higher tax bill than what you actually paid.
Key Takeaways
- Iowa does not legally require a bill of sale, but using one protects you if the buyer or seller later disputes the terms or ownership.
- The bill of sale should include the vehicle identification number (VIN), the sale price, the date, and the signatures of both the buyer and seller.
- You can use a straightforward written document or read a template from the Iowa Department of Transportation website.
- The bill of sale is separate from the title transfer; you will still need to complete the title paperwork at your county treasurer's office.
- Keep a copy of the signed bill of sale for your records, and give the other party a copy as well.
What information to include on an Iowa bill of sale
Your bill of sale must contain enough detail that anyone reading it later can understand exactly what was sold and for how much. Start with the vehicle identification number (VIN), which appears on the dashboard and on the current title. Include the year, make, model, and color of the vehicle. Write down the odometer reading on the date of sale — this is important because it shows the condition of the vehicle at the time of transfer.
Next, record the sale price in words and numbers. For example, write "Five thousand dollars ($5,000.00)". If the sale included a trade-in or partial payment in goods or services, describe that clearly. Include the date of the sale, the full names and addresses of both the buyer and seller, and the signatures of both parties. Some people also add the driver's license numbers of both parties, which makes the document harder to forge.
You do not need to notarize a bill of sale in Iowa, but doing so adds another layer of proof that both parties signed it willingly. If you think a dispute is likely — for example, if the vehicle has mechanical problems or the buyer is unhappy later — notarization is worth the small cost.
Where to find an Iowa bill of sale template
The Iowa Department of Transportation does not publish an official bill of sale form, but you can read a template from the department's website or use a straightforward one-page document you write yourself. Many free templates are available online; search for "Iowa auto bill of sale template" and choose one that includes all the fields listed above.
You can also create your own bill of sale from scratch using a word processor. There is no magic language required — as long as both parties sign and date it, and it clearly states who is selling what to whom for how much, it will hold up. Type or write clearly so that the information is straightforward to read later.
If you prefer a more formal approach, you can purchase a bill of sale form from an office supply store or print one from a legal document website. The cost is usually under five dollars. Whatever form you use, print two copies — one for you and one for the other party.
How to complete the bill of sale correctly
Fill in all the blanks completely before either party signs. Use blue or black ink, not pencil, so the document cannot be altered later. Write clearly and spell out numbers when possible. If you make a mistake, cross it out with a single line, write the correction above it, and have both parties initial the change. Do not use white-out or erasers, because they make the document look tampered with.
Both the buyer and seller must sign the bill of sale in front of each other if possible. Each person should sign their own name, not print it. Write the date next to the signatures. If either party cannot be present, some people use a notary public to witness the signatures separately, though this is not required in Iowa.
After both parties have signed, make photocopies or take clear photos of the completed bill of sale. Give one copy to the other party and keep one for yourself. Store your copy somewhere safe, like a file folder or safe deposit box, because you will need it if you ever have to prove you sold or bought the vehicle.
The bill of sale and the title transfer process
The bill of sale is a separate document from the vehicle title. Having a signed bill of sale does not transfer the title to the buyer — you still have to complete the official title transfer at your county treasurer's office. The bill of sale is evidence of the sale, but the title transfer is what legally changes who owns the vehicle.
As the seller, you will need to sign the back of the title and provide it to the buyer. The buyer then takes the signed title, the bill of sale, and proof of insurance to the county treasurer's office to register the vehicle in their name. The county treasurer will issue a new title with the buyer's name on it. This process usually takes a few days to a week.
Keep your copy of the bill of sale even after the title has been transferred. If the buyer later claims they never received the vehicle, or if the vehicle is involved in an accident or crime before the title transfer is complete, your bill of sale proves when and to whom you sold it.
What happens if you sell a vehicle without a bill of sale
If you sell a vehicle without a bill of sale, you have no written proof of the sale. If the buyer later gets into an accident and the other driver sues, they may try to hold you liable because the title still shows your name. If the buyer does not pay you the full amount and then disappears, you have no document showing what they owed you. If the vehicle is used in a crime, police may contact you because you are still listed as the owner.
The buyer also faces risk without a bill of sale. If the seller later claims the vehicle was stolen or that the sale was never completed, the buyer has no proof they bought it legitimately. A bill of sale protects both parties by creating a clear record of the transaction.
Frequently Asked Questions
Do I have to notarize my bill of sale in Iowa?
No, notarization is not required in Iowa. A bill of sale is valid as long as both parties sign and date it. However, notarization adds extra proof that both parties signed willingly and can be helpful if a dispute arises later. A notary public will charge a small fee, usually between five and fifteen dollars.
What if I lost the bill of sale after I sold the vehicle?
If you no longer have a copy, you cannot get another one from the state. However, if you kept records of the sale — such as a bank deposit showing the payment, text messages discussing the sale, or a receipt from a notary — those can help prove the transaction occurred. If a problem arises, contact the Iowa Department of Transportation for guidance on what documentation they will accept.
Can I use a bill of sale if the vehicle still has a loan on it?
Yes, but the lender must release the lien on the title before the buyer can register it in their name. The bill of sale documents the sale between you and the buyer, but the lender's name will still appear on the title until the loan is paid off. Work with your lender to remove the lien, then provide the buyer with the cleared title.
What if the buyer and I disagree on the sale price after we sign the bill of sale?
The signed bill of sale is a binding record of what you both agreed to. If the buyer later claims the price was different, you have the document to prove what was actually agreed upon. This is one of the main reasons a bill of sale is important — it prevents misunderstandings and disputes.
Do I need a bill of sale if I am giving a vehicle to a family member?
Even if you are not selling the vehicle for money, a bill of sale is still useful. Write "gift" or "$0" in the price field, have both parties sign and date it, and keep copies. This protects the recipient by showing they received the vehicle with your permission and prevents anyone from later claiming the vehicle was stolen.