Car Deal Checker: Used Car Price & Payment Calculator

Check a used car deal: payment and out-the-door cost calculator, recall and scam check, and negotiation tools.

Know if a used car is a good deal before you buy it. Car Deal Checker adds a small panel to the used car listing you’re viewing. It scores the deal, shows what the car will really cost, and gives you what you need to negotiate. Free features Deal score based on price, mileage, and age Monthly payment calculator with your loan term, rate, and down payment Out-the-door price estimate with your local tax rate and fees Open safety recalls, checked by VIN Scam warning signs, like prices far below market and pressure to pay off-platform Red flags in the listing text, such as repair needs or title problems Fuel economy and estimated 5-year cost of ownership Questions to ask the seller, tailored to the car Market value lookup helper that saves the value you pick Save cars and compare them side by side Pro features (one-time $6, no subscription) Offer tiers with ready-to-send negotiation messages Bargain meter showing how much room you have to push on price Price-drop alerts for cars you save (optional) Printable inspection checklist Unlimited saved cars and notes Privacy Your settings and saved cars stay on your device. The extension only sends a VIN to the government recall database and a license key to verify Pro. It doesn’t sell or share your data. How to use it Open any used car listing, click the Car Deal Checker icon, and the panel appears. Set your budget, loan terms, and tax rate once in Options. Car Deal Checker is not affiliated with any listing site, dealer, or valuation service. Scores and estimates are guides, not guarantees. Always get an independent inspection.