Used Car Buyer Paperwork by State
Used car buyer paperwork varies by state, but the core requirements are mostly consistent: a signed title from the seller, a title transfer application, proof of insurance, government-issued ID, and payment for fees and taxes. What differs is the deadline to submit, whether notarization is required, whether a bill of sale is mandatory, and what inspections or emissions tests are needed.
Quick answer
What most states require from buyers:
- ✓ Signed title from the seller (with odometer disclosure for vehicles under 10 years old)
- ✓ State title/registration application form
- ✓ Proof of insurance meeting state minimum coverage
- ✓ Valid government-issued photo ID
- ✓ Payment for title transfer fee and sales or use tax
Title transfer deadlines range from 10 days (California, Louisiana) to 30–60 days in other states. Missing the deadline typically adds a late fee.
Requirements that vary by state
Notarization
Nine states require a notarized signature on the title before the buyer can complete a transfer. In these states, the seller must sign in front of a notary — a bank, UPS Store, or AAA office can usually notarize for free or under $15.
Montana eliminated this requirement in October 2025 (HB 165). All other states do not require notarization for standard private sales.
Odometer disclosure
Required in all 50 states for vehicles under 10 years old and under 16,000 lbs gross vehicle weight. This is a federal requirement under the Truth in Mileage Act. The seller fills in the odometer reading on the back of the title — or on a separate federal form if the title doesn't have space. Intentional mileage fraud is a federal crime.
Bill of sale
Most states recommend a bill of sale but don't legally require one for private car sales. A few states (including Louisiana, Maryland, West Virginia, and some others) require or use a bill of sale as part of the tax or title process. Even where optional, use one: it documents the sale price (used to calculate sales tax), the VIN, the as-is condition, and both parties' contact information. State-specific generators are available on the bill of sale template page.
Inspection and emissions
Some states require the seller to provide a safety or emissions certificate before the title can transfer. California requires a smog certificate for most vehicles 1976 and newer. Texas requires an annual safety inspection. Illinois only requires emissions testing in the Chicago metro area. Other states (Florida, Georgia, Pennsylvania, Michigan) have no statewide inspection requirement for used car sales. Check your state's full buyer checklist for inspection rules specific to your situation.
Why state rules differ
Vehicle paperwork in the US is almost entirely state-regulated. There's no federal standard for private sales beyond the odometer disclosure requirement (which federal law sets for vehicles under 10 years old and under 16,000 lbs). Everything else — notary rules, bill of sale requirements, transfer deadlines, inspection requirements, fees — varies by state statute and is administered by each state's motor vehicle agency.
Some states process title and registration together at the same DMV visit. Others handle them separately through different agencies (county tax offices handle title in Texas, for example). This is why the "where to submit" step differs so much from state to state.
What most states require
Signed title from the seller
Near-universal. The title is the legal ownership document — without a signed title, the buyer cannot register the vehicle.
Odometer disclosure on the title
Required by federal law for vehicles under 10 years old and under 16,000 lbs. The seller fills this in on the back of the title.
Title transfer application form
Every state has one. The name varies (Form 130-U in Texas, REG 343 in California, MV-82 in New York). Available at your state DMV or online.
Proof of insurance
Nearly universal before plates can be issued. Minimum coverage requirements vary by state.
Payment for fees and taxes
Title transfer fee plus sales or use tax on the purchase price. Texas charges 6.25%; California collects use tax at the DMV. Amounts vary widely.
State-specific buyer checklists
Frequently asked questions
What paperwork does a buyer need in most states when buying a used car?
Buyers typically need the signed title from the seller with odometer disclosure, a state title transfer application form, proof of insurance, a valid government-issued ID, and payment for the title transfer fee and sales or use tax.
Which states require notarization when buying a used car?
Nine states require notarized signatures on the vehicle title: Kentucky, Louisiana, Nebraska, New York, North Carolina, Ohio, Oklahoma, Rhode Island, and Wyoming. Montana eliminated this requirement in October 2025. Requirements can vary by county within these states.
How long does a buyer have to transfer the title?
Deadlines vary. California and Louisiana require title transfer within 10 days. Texas, Florida, and Georgia allow 30 days. Other states allow 30–90 days. Missing the deadline adds a late fee.
Is a bill of sale required in all states?
No. Some states require a bill of sale for private vehicle sales; most recommend it but don't legally require it. It's recommended everywhere because it documents the sale price used to calculate sales tax.
Last reviewed: 2026-05-13 · Reviewed by the Car Paperwork editorial team · Independent resource · Not legal advice