Car Paperwork Guide: Documents You Need to Buy, Sell, Register or Transfer a Vehicle
The paperwork you need depends on what you're doing. Selling a car privately requires different documents than buying one, and both are different from registering a vehicle in a new state. What every situation shares: the requirements vary by state, and missing even one form can delay or void the transaction.
Quick answer
Common vehicle paperwork documents include:
- → Title — the legal proof of ownership, required for nearly every vehicle transaction
- → Bill of sale — a written record of the transaction; required in some states, recommended everywhere
- → Odometer disclosure — required by federal law for most vehicles under 10 years old
- → Lien release — needed if the vehicle had an outstanding loan
- → Government ID and proof of insurance — needed for registration
- → Inspection / emissions certificate — required in roughly half of all states
The exact combination depends on your state and the transaction type. Use the section below that matches your situation.
Paperwork for selling a car
When selling privately, the seller is responsible for transferring ownership cleanly. The buyer can't register the vehicle without the right paperwork from you.
Signed vehicle title
Sign exactly as your name appears on the title
Odometer disclosure
Required by federal law for most vehicles under 10 years old
Bill of sale
Required in some states; strongly recommended in all
Lien release
Required if there was an outstanding loan on the vehicle
Release of liability / notice of sale
Required in several states to protect the seller after the sale
Paperwork for buying a used car
As the buyer, you need to verify the seller's paperwork is correct before handing over money, then submit the right documents to your state DMV to register the vehicle in your name.
Signed title from the seller
Verify the seller's name matches the title
Bill of sale
Documents the purchase price, VIN, and both parties' information
Government-issued photo ID
Required when submitting title transfer paperwork
Proof of insurance
Required before registering the vehicle in your name
Payment for title fees and sales tax
Amounts vary significantly by state
Paperwork for title transfer
Title transfer is the legal step that moves ownership from seller to buyer. It happens after the sale but before the vehicle can be registered. Most states require this to be completed within 10–30 days of the sale date.
Original signed vehicle title
Seller signs in the designated transfer section
Title transfer application form
Available from your state DMV
Odometer disclosure
Typically completed on the back of the title
Government-issued ID
Both buyer and seller may need to show ID
Notarized signatures
Required in 9 states: LA, MT, NE, NV, NH, NY, NC, OH, OK
Payment for title transfer fee
Usually $10–$100 depending on state
Paperwork for vehicle registration
Registration is separate from the title transfer. You register with your state to get license plates and show you've paid the annual fees. Some states handle title and registration at the same time; others require separate submissions.
Title or proof of ownership
The signed title from the seller
Proof of insurance
Minimum liability coverage required in nearly all states
Government-issued ID or driver's license
Odometer disclosure
For most vehicles under 10 years old
Inspection / emissions certificate
Required in roughly half of all states
Payment for registration fees and taxes
Varies widely by state
Paperwork for a lost or duplicate title
If the title is lost, stolen, or damaged, you can apply for a duplicate through your state's motor vehicle agency. You'll typically need a completed duplicate title application form, government-issued ID, payment for the duplicate title fee, and (if there's an active lien) the lienholder's involvement.
→ Lost title replacement by statePaperwork for out-of-state registration
If you've moved to a new state or bought a vehicle titled in another state, you'll need to re-register it in your new home state. Most states give you 30–90 days from the date you establish residency or purchase the vehicle. Required documents typically include the out-of-state title, proof of insurance in the new state, a VIN verification (some states), and emissions or smog test results if required.
→ Out-of-state vehicle registration by stateState-specific paperwork checklists
Requirements differ in real ways between states — deadlines, notary rules, inspection requirements, and which forms to use. These are the most-visited state checklists on the site:
All 50 states have full checklists on this site.
Related guides
Frequently asked questions
What paperwork do I need to sell my car?
Sellers typically need the signed vehicle title, odometer disclosure (for most vehicles under 10 years old), a bill of sale, and a lien release if there was an outstanding loan. Some states also require a release of liability filed with the DMV.
What paperwork do I need to buy a used car from a private seller?
Buyers need the signed title from the seller, a bill of sale, proof of insurance, a valid government-issued ID, and payment for the title transfer fee and any applicable sales tax. Exact requirements depend on your state.
What documents do I need to register a car?
Registration typically requires the title or proof of ownership, proof of insurance, a valid driver's license or ID, odometer disclosure for newer vehicles, and payment for registration fees and taxes. Some states also require an inspection or emissions certificate.
Is a car bill of sale required in all states?
No. Some states require a bill of sale for private vehicle sales; most recommend it but do not legally require it. A bill of sale protects both buyer and seller by documenting the sale price, VIN, date, and both parties' identities.
What is the difference between car title and registration?
A car title is the legal document proving ownership of the vehicle. Registration is proof that you've paid the fees required to operate the vehicle on public roads. You can own a car without current registration, but you generally cannot register without a title.
Find your state's exact paperwork
State-specific checklists with official DMV links for all 50 states.
Choose your state →Last reviewed: 2026-05-13 · Reviewed by the Car Paperwork editorial team · Independent resource · Not legal advice