Frost Bank Auto Loan and CARFAX: Oct 2026 Rates, NADA Cap and History Checks

Frost Bank's auto loan page doesn't mention CARFAX or AutoCheck at all, so it neither hands you a history report nor says it requires one. What it does spell out is how much it will lend: up to 100% of the price on a new car, but only up to the NADA trade-in value on a used one. That cap is where a car's history starts costing you money, because the gap between what you pay and what the bank will lend comes out of your pocket.

Frost is the San Antonio bank that, by its own telling, has been around since 1868. Everything below comes from its Personal Auto Loans page and its rate discount disclosure as I read them on Sunday morning, October 18, 2026. The rate table on that page says "effective as of 10/18/2026," so treat every number here as a same-day snapshot.

Frost's posted rates, as of Oct 18, 2026

Unlike a lot of banks we've covered, Frost puts real APRs on the page. The table runs by vehicle age:

• New 2025/2026: 5.64% APR, 30 to 72 months
• 1 year old (2025): 6.25%, 30 to 72 months
• 2 years old (2024): 6.35%, 30 to 72 months
• 3 years old (2023): 6.75%
• 4 years old (2022): 6.75%
• 5 years old (2021): 7.00%

For the 3-, 4- and 5-year-old rows, the table fills fewer term columns, three for 2023 and two each for 2022 and 2021, which reads like a 48-month cap and then a 36-month cap. Ask the loan advisor to confirm before you plan a payment around it. The page's own example is $25,000 for five years at 5.64%, which works out to $479.15 a month. The table has no row at all for a 2020 or older car. The page doesn't say Frost won't finance one, but it doesn't post a rate either, so expect a phone conversation.

The NADA trade-in cap, and why history matters here

A dealer's sticker price is usually a retail number, and Frost's used-car limit is a trade-in number, which runs lower. If you're buying a 2022 for well over its trade-in value, the difference is your down payment, plus taxes and fees. So look hard at that gap before you sign. A car with a reported accident, a rebuilt brand, or an odometer problem is likely to bring less when you sell it, and paying retail for one while borrowing against a book value is how people end up owing more than the car's worth. Our negative equity trade-in post walks through how that rolls into the next loan.

The page doesn't say whether Frost runs its own history check, and I'm not going to guess. Pull the report yourself, before the loan advisor ever sees the VIN. If the dealer gives you one, our dealership free AutoCheck post covers what those can leave out.

How you apply, and the checking discount

Frost says the application takes about 15 minutes and you'll get an answer in about one business day. You apply by calling a Personal Loan Advisor at (866) 376-7889 or going to a Frost financial center, with your Social Security number and a government-issued photo ID. I didn't see an online application on the page. Pre-approval before you shop is offered, which I'd take, since it gives you a number to hold the dealer's finance office against.

The discount is 0.15% to 0.50% off with a personal Frost checking account. The disclosure, effective September 1, 2026, sets the tiers: 0.15% with a qualifying personal account, auto debit, and a deposit posted within the last 34 days; 0.25% with a Frost Plus account and $20,000 in combined balances; 0.35% at $250,000 with a Premium account; and 0.50% at $1,000,000 including $500,000 in deposits. Discounts don't stack. For most of us, the realistic number is 0.15%.

How Frost compares

Frost is more transparent on price than Commerce Bank, which wouldn't show a rate without a ZIP code, and it's tighter on age, since Commerce openly courts old and high-mileage cars. Like Old National, you deal with a banker rather than a dealer portal. Shopping around in Texas? Comerica's Texas branches were converted to Fifth Third this year, which our Comerica auto loan post sorts out. None of those three banks promises you a history report either.

Before you call Frost, decode the VIN at NHTSA's vPIC to confirm the model year, since the rate row depends on it, and search NMVTIS for salvage and flood brands. A seller's screenshot of a "clean" report is worth nothing until the VIN on it matches the dash.

CarVins sells CARFAX and AutoCheck reports as a licensed reseller and isn't affiliated with CARFAX, AutoCheck, Experian or Frost Bank. As of mid October 2026, one report runs about $5.50 as a guest or $4.50 as a member, and a CARFAX plus AutoCheck bundle is near $6.75, while retail is typically $39.99 to $44.99. We update prices now and then, so trust the checkout screen over this paragraph.

Sources

• Frost Bank: Personal Auto Loans (rates effective 10/18/2026), Consumer Loan Rate Discount Disclosure, About Frost, read Oct. 18, 2026
• NHTSA vPIC decoder and NMVTIS