CarMax and Carvana are the two biggest instant-offer buyers, and neither one consistently beats the other. Multiple side-by-side comparisons have found gaps ranging from a few hundred dollars to a few thousand, sometimes favoring CarMax and sometimes Carvana, depending on the specific vehicle, your region, and what each company's inventory algorithm is prioritizing that week. The only reliable way to know which pays more for your car is to get quotes from both on the same day.
Quick answer: Get both quotes before deciding anything — it takes about 20 minutes combined. Historically, CarMax tends to lead on older vehicles, high-mileage cars, and SUVs, while Carvana is more competitive on newer, in-demand vehicles. Neither wins consistently enough to skip checking the other.
You can start online for a preliminary estimate, but the real offer comes from an in-person appraisal at a CarMax location — typically about 30 minutes, including a physical inspection. Once complete, you get a written offer valid for 7 days. You're not required to buy a car from them to sell to them. If you accept, CarMax handles the paperwork on the spot and issues payment the same day, though the check can take a few business days to clear depending on your bank. CarMax also handles loan payoffs directly, but the payoff process on a financed vehicle can take longer than Carvana's — sometimes up to two to three weeks to fully close out with your lender.
Carvana's offer comes from an online estimate based on your vehicle's details — no in-person appraisal is required before you get a number. If you accept, Carvana schedules a pickup (often from your driveway) where an inspector does a brief walk-around to confirm the vehicle matches what you described. The whole process from acceptance to pickup typically takes 1-3 days, and Carvana works directly with your lender to handle any existing loan payoff as part of the transaction. The trade-off for the convenience: if the in-person inspection finds discrepancies from your online description, the final offer can be adjusted down from the initial quote.
| CarMax | Carvana | |
|---|---|---|
| Offer method | In-person appraisal | Online, confirmed at pickup |
| Time to payment | Same day at store (check may take days to clear) | 1-3 days after acceptance |
| Offer validity | 7 days | 7 days |
| Pickup option | Drop off at store, at-home pickup in some markets | Home pickup standard |
| Loan payoff handling | Handled directly, can take longer to close | Handled directly, generally faster |
| Tends to lead on | Older vehicles, high mileage, SUVs | Newer, in-demand vehicles |
Know your car's fair market value before you accept any instant offer.
Used Car Value Calculator →Neither CarMax nor Carvana will typically buy salvage-title, non-running, or heavily damaged vehicles — those require specialized buyers. Both also tend to offer less than a well-executed private sale, since you're trading some amount of money for convenience and certainty. If your car is in the 10+ year, high-mileage, or "needs work" category, a service that specializes in older vehicles may beat both.
Both companies feed your vehicle's details — year, trim, mileage, condition, and options — into an internal pricing algorithm that weighs current wholesale auction data, their own inventory needs, and how quickly similar vehicles have been reselling. This is why the same car can get noticeably different offers from the same company just weeks apart: if a company's lots are already full of sedans, a sedan offer drops; if they're short on trucks, a truck offer rises. Neither company is being dishonest by offering different amounts on different days — their internal math genuinely changes based on inventory needs, which is exactly why comparing multiple quotes on the same day (rather than trusting a quote from last month) matters.
On a typical mid-size sedan worth around $18,000-$22,000 in good condition, expect CarMax and Carvana quotes to land within roughly $500-$1,500 of each other most of the time, with occasional larger gaps of $2,000+ when one company's inventory need is unusually high or low for that specific model. If the gap between your two quotes is small (under $500), convenience factors — payment speed, pickup vs. drop-off, how the loan payoff is handled — should probably decide it. If the gap is large, it's worth taking the higher offer unless the lower one solves a real logistical problem (like needing same-day cash) that's worth the difference to you.
CarGurus, Vroom, and various local "instant cash offer" tools from Kelley Blue Book or Edmunds work similarly — online estimate, sometimes an in-person or pickup confirmation step. Getting a third quote from one of these rarely hurts, since each company's inventory needs shift week to week. The extra 10 minutes to check a third source is low-cost insurance against leaving money on the table.
Instant offers exist on a spectrum between a dealer trade-in (fastest, usually lowest price) and a private sale (slowest, usually highest price). If your priority is speed and zero hassle, CarMax and Carvana are both reasonable. If maximizing your payout matters more than convenience, compare their offer against what a private sale would realistically net you after accounting for your time. See our full breakdown of private sale vs. trade-in economics for the complete math.