To buy a car from a private seller in Arizona, you need to confirm the seller holds a clean title, complete the title assignment and a bill of sale, have the seller’s signature notarized or witnessed, carry at least the state minimum insurance, and transfer the title at the MVD within 15 days of the sale.1Arizona Legislature. Arizona Code 28 – Transportation 28-2058 – Transfer of Title; Odometer Mileage Disclosure Statement; Education No dealer stands between you and the paperwork here, and no dealer stands behind the car after you drive away, so the checks you do before handing over money are the whole protection you get.
Confirm the Title Is Clean and Lien-Free
Before anything else, verify that the seller can actually transfer ownership. Arizona’s MVD offers a free title viewer through AZ MVD Now that lets you look up any Arizona-titled vehicle and see whether a lender still has a claim on it. If a bank or credit union holds a lien, the seller has to pay off that debt and produce a lien release before the title can legally transfer. New liens get recorded daily, so the MVD recommends checking the record and completing the transfer on the same day.2Department of Transportation – AZdot.Gov. Vehicle Liens
If the seller can’t produce a physical title, treat that as a stop sign. They may need to request a replacement through AZ MVD Now or by mail for $4 before any sale can proceed.3Department of Transportation. Vehicle Title Walking away is almost always the right call when the paper isn’t there.
Verify the VIN, Odometer, and Title Brand
Match the Vehicle Identification Number stamped on the car (usually visible on the dashboard near the windshield and on the driver’s door jamb) against the number printed on the title. If anything doesn’t match, stop.4Arizona Legislature. Arizona Revised Statutes 28-2011 – Vehicle Inspections
Arizona law requires the seller to provide an odometer mileage disclosure statement that accurately reflects the distance the vehicle has traveled.1Arizona Legislature. Arizona Code 28 – Transportation 28-2058 – Transfer of Title; Odometer Mileage Disclosure Statement; Education Federal regulations create an exception for older vehicles.5eCFR. 49 CFR Part 580 – Odometer Disclosure Requirementsa>
Read the title brand carefully. Arizona marks vehicles declared a total loss or that suffered major damage with a “salvage” brand. A salvage vehicle that has been repaired, inspected, and re-titled carries a “restored salvage” brand instead.6Department of Transportation. What Is a Restored Salvage Vehicle? Either brand cuts resale value and can complicate insurance. A commercial history report from NMVTIS, Carfax, or AutoCheck can also surface out-of-state title brands, prior damage, and odometer rollbacks that the Arizona title alone might not reveal.
Handle Emissions Testing in Phoenix or Tucson
If you plan to register the vehicle in the greater Phoenix area (Area A, covering most of Maricopa County) or the Tucson area (Area B, covering parts of Pima County), it needs to pass an emissions test. The requirement also reaches you if you live outside those areas but commute to a primary job inside them.7Arizona Legislature. Arizona Revised Statutes 49-542 Ask the seller for a current emissions compliance certificate before you close the deal. If the car fails after you buy it, you pay for the repairs.
Several categories of vehicles are exempt:
- Cars still within their first five registration years after the initial purchase or lease.
- Cars from the 1966 model year or earlier (or 1974 and earlier, where the EPA has granted the expanded exemption).
- Electric vehicles, motorcycles, and golf carts.
- Vehicles registered under Arizona’s collectible vehicle plate program.
Complete the Title Assignment and Bill of Sale
The transfer itself happens on the back of the existing Arizona title. You and the seller fill in the buyer’s name and address, the date of sale, the purchase price, and the odometer reading. The seller signs an assignment with a warranty of title on the back of the certificate.1Arizona Legislature. Arizona Code 28 – Transportation 28-2058 – Transfer of Title; Odometer Mileage Disclosure Statement; Education
You’ll also complete a Bill of Sale on MVD Form 48-2004, which asks for the VIN, year, make, body style, sale date, and purchase price.8Arizona Department of Transportation (ADOT). Bill of Sale 48-2004 Every entry has to match the title exactly. Don’t inflate or deflate the purchase price; the MVD and taxing authorities use it. Keep a copy for yourself and give one to the seller.
Get the Seller’s Signature Notarized or Witnessed
This is the step that trips up more Arizona private sales than any other. The seller’s endorsement on the title must be notarized by a notary public or witnessed by an authorized party.9Arizona Legislature. HB 2662 – Transfer of Title; Notary; Requirement An MVD agent at a state office or an authorized third-party motor vehicle services provider can also witness the signature.10Arizona Department of Transportation (ADOT). Forms and Signatures Banks, UPS stores, and some AAA offices offer notary services if you’d rather handle it during the sale.
Without proper notarization or an authorized witness, the endorsement is invalid and the MVD will reject your transfer. Make sure the seller brings valid photo identification. Handling this at the same meeting where money changes hands saves you the trouble of a second appointment.
Line Up Insurance Before You Register
Arizona will not register a vehicle without proof of liability insurance. State minimums are $25,000 for bodily injury per person, $50,000 for bodily injury per accident, and $15,000 for property damage.11Arizona Legislature. Arizona Revised Statutes 28-4009 – Motor Vehicle Liability Policy Requirements Those figures are modest against the cost of a serious accident, so many buyers carry higher limits.
If you already insure another vehicle, most insurers extend temporary coverage to a newly purchased car for somewhere between 7 and 30 days. Call your carrier before the purchase to confirm your grace period and how to add the car. If you don’t have a policy, buy one before your MVD visit. The MVD verifies insurance electronically at registration.
Transfer the Title at the MVD Within 15 Days
You have 15 days from the sale date to submit the title transfer.1Arizona Legislature. Arizona Code 28 – Transportation 28-2058 – Transfer of Title; Odometer Mileage Disclosure Statement; Education Miss it and a late penalty applies. You can file at any MVD office or at an authorized third-party motor vehicle services provider, which are privately run offices around the state that often keep longer hours and shorter lines. Bring:
- The signed, notarized or witnessed title
- The completed Bill of Sale (Form 48-2004)
- A Title and Registration Application (Form 96-0236)3Department of Transportation. Vehicle Title
- A lien release, if the vehicle previously carried a lien
- Proof of insurance
- Payment for fees and taxes
Fees and Taxes You’ll Pay
The core MVD charges for a private-party purchase are a $4 title fee and an $8 registration fee. The bigger line item is the Vehicle License Tax (VLT), an annual fee built into your registration. For used vehicles, the VLT rate is $2.89 per $100 of assessed value. The assessed value starts at 60% of the manufacturer’s base retail price and drops by 16.25% for each year the vehicle has been registered in Arizona.12Arizona Department of Transportation. How Are My AZ Vehicle Registration Fees Calculated? You’ll pay VLT again at every renewal, not just at the first registration.
Arizona does not charge its transaction privilege tax (the state equivalent of a sales tax) on private-party vehicle sales. Some cities do collect a separate vehicle use tax when the MVD processes the registration. Phoenix, for example, charges a city vehicle use tax when no local sales tax was paid at purchase, which is essentially every private sale.13City of Phoenix. Vehicle Use Tax (VUT) Check your city’s rules to see whether it applies to you.
Make Sure the Seller Files a Sold Notice and Removes the Plates
Two seller-side steps affect you directly. First, the seller must submit a Sold Notice to the MVD within 10 days of the sale.14Department of Transportation – AZdot.Gov. Sold Notice It creates a clear dividing line between their ownership and yours, which matters if there’s a gap before your title transfer clears. Remind the seller to file it, or verify they did.
Second, the seller must remove their license plates before handing over the vehicle.15Department of Transportation – AZdot.Gov. Selling Your Vehicle Arizona plates belong to the registered owner, not the car. You cannot legally drive the car home on the seller’s plates. Plan a tow, a flatbed, or a temporary registration permit if you need to move the car before you finish at the MVD. You’ll get new plates or transfer your existing ones when you register.
Private Sales Are “As-Is”
The Federal Trade Commission’s Used Car Rule, which requires dealers to post a Buyer’s Guide disclosing warranty terms, only applies to sellers who move five or more vehicles in a 12-month period, so a typical private seller isn’t covered.16eCFR. Part 455 – Used Motor Vehicle Trade Regulation Rule Federal lemon law protections under the Magnuson-Moss Warranty Act don’t reach private used-car sales either, and Arizona’s consumer protection laws generally do not impose implied warranties on private-party transactions.
Once you pay and drive away, the car is your problem. If the transmission fails the next morning, your only real legal path is proving the seller committed fraud, such as concealing known defects or lying in writing about the car’s condition. That’s why a pre-purchase inspection by an independent mechanic is worth the $100 to $200 it costs. If the seller refuses to allow an inspection, that answer tells you what you need to know.