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Buying a Used Car: A Step-by-Step Checklist to Avoid a Lemon

A used car can save you thousands — or cost you thousands. Follow this checklist from budget to paperwork to buy with confidence.

Used cars cost far less than new ones and lose value more slowly, which makes them a smart choice for many Americans. But buying used comes with risks: hidden damage, rolled-back odometers, open safety recalls and unclear paperwork. This checklist walks you through the process so you know exactly what you're getting.

1. Set your total budget

Think about the total cost of ownership, not just the sticker price: sales tax, title and registration fees, insurance, fuel, and maintenance. Get insurance quotes for the specific models you're considering — they can vary a lot. A common guideline is to keep your total monthly car costs to a manageable share of your take-home pay.

2. Get financing pre-approved

If you need a loan, get pre-approved by your bank or a credit union before visiting dealers. You'll know your interest rate and budget, and you can compare it to any dealer financing offer. Focus on the annual percentage rate (APR) and total loan cost, not just the monthly payment — stretching a loan over more years lowers the payment but increases the total you pay.

3. Research reliable models and prices

Look up reliability ratings, common problems and fair market prices for the models you like using reputable pricing guides. Knowing the typical price for a car with similar mileage and condition gives you a strong starting point for negotiation.

4. Check the vehicle's history

Ask for the Vehicle Identification Number (VIN) — a 17-character code on the dashboard near the windshield and on the driver's door frame. Then:

  • Run a vehicle history report to look for accidents, flood or salvage titles, odometer issues and ownership history. The U.S. Department of Justice's National Motor Vehicle Title Information System (NMVTIS), at vehiclehistory.gov, lists approved low-cost report providers.
  • Check for open recalls using the VIN at NHTSA.gov/recalls. Recall repairs are free at authorized dealers, but sellers don't always fix them before selling.
  • Make sure the VIN matches on the car, the title and the history report.

5. Read the Buyers Guide

Under the Federal Trade Commission's Used Car Rule, dealers must post a Buyers Guide sticker in the window of most used cars they sell. It tells you whether the car comes with a warranty or is sold "As Is — No Dealer Warranty," meaning you pay for any repairs after the sale. The Buyers Guide becomes part of your sales contract and overrides contrary terms. Private sellers aren't required to provide one, and many private sales are effectively "as is."

6. Inspect and test drive

On a dry, daylight visit:

  • Look for mismatched paint, uneven gaps between body panels, rust and signs of flood damage such as musty smells, damp carpet or silt under the seats.
  • Check tire wear, which can reveal alignment problems.
  • Make sure every light, window, lock, the air conditioning and heat work.
  • Test drive on city streets and the highway. Listen for unusual noises, and notice whether the car pulls to one side, vibrates, or shifts roughly.

7. Get a pre-purchase inspection

This is the most valuable step. Pay an independent mechanic you choose — not one recommended by the seller — to inspect the car. It typically costs far less than a single major repair. If a seller refuses to allow an independent inspection, consider that a serious red flag and walk away.

8. Negotiate

Use your price research and the inspection results to negotiate. Ask for the "out-the-door" price including all fees, so you're comparing like with like. Be wary of add-ons pushed during paperwork, such as extended warranties, paint protection or "VIN etching" — they're optional and often overpriced.

9. Handle the paperwork carefully

  • Read the entire contract before signing and make sure all promises are in writing.
  • Confirm the seller has the title and that it's free of liens, or that the lender will release it.
  • In a private sale, follow your state's rules for signing over the title and a bill of sale, and don't hand over payment until you have the signed title.
  • Arrange insurance before you drive away, and register the car with your state as required.
Quick checklist: budget → pre-approval → research → VIN history and recall check → Buyers Guide → test drive → independent inspection → negotiate the out-the-door price → check the title and contract.

If something goes wrong

Most states have lemon laws for new cars, and some extend protections to used cars. If you believe a dealer misled you, contact your state attorney general's consumer protection office, and you can report the issue to the FTC at ReportFraud.ftc.gov.

Sources & further reading

We research every guide from official and primary sources. Spotted an error or an outdated detail? Tell us — see our editorial and corrections policy.