You compare two quotes for the same car, same coverage, same driving record, and one comes in $60 a month higher than the other. Nothing about your driving changed. What changed is your credit.
In Tennessee, insurers are allowed to use a credit-based insurance score to help set your premium, and for a lot of drivers it moves the number more than a speeding ticket would. If you’ve ever wondered why your rate jumped after a rough financial year, this is usually why.
What a Credit-Based Insurance Score Actually Is
It’s not your FICO score, even though it’s built from the same credit report. A credit-based insurance score looks at payment history, outstanding debt, length of credit history, and how much available credit you’re using, then runs that data through a model designed to predict the likelihood you’ll file a claim, not whether you’ll repay a loan. According to the Insurance Information Institute, actuarial research has repeatedly found a statistical link between how someone manages credit and how likely they are to file an insurance claim, which is the justification insurers give for using it at all.
You’ll never see this number. It’s calculated by a vendor, usually LexisNexis or a similar data firm, and handed to the insurer as one input among several. Your driving record, your zip code, your age, and your claims history all still matter. Credit is layered on top.
Is This Even Legal in Tennessee?
Yes, and it has been for years. Tennessee is one of 46 states that allow credit-based insurance scoring for auto and homeowners policies. Only California, Hawaii, Massachusetts, and Michigan restrict or ban the practice outright.
But Tennessee law does put some guardrails on how insurers can use it. Under T.C.A. § 56-5-202, an insurer can’t deny, cancel, or refuse to renew your policy based on credit information alone, without weighing other underwriting factors too. They also can’t penalize you simply for having no credit history or refuse to explain what “neutral” treatment looks like if that’s the case. If an insurer takes an adverse action against you based on credit, it has to use a credit report or score pulled within 90 days of when your policy was written or renewed, and it has to recalculate your score or refresh your credit report at least once every 36 months. Practically speaking, that means your score isn’t frozen for life. A bad year five years ago shouldn’t still be dragging your rate down today, assuming your insurer is following the recheck schedule.
How Big a Difference This Actually Makes
The gap between good credit and poor credit pricing varies enormously by company, and any number you see cited nationally should be read as a range, not a fixed rule. Bankrate’s national rate research has found that drivers with poor credit commonly pay roughly double what drivers with excellent credit pay for otherwise identical coverage, and some individual carriers show a far wider spread than others. That’s a meaningful detail if you’re shopping: the penalty for bad credit isn’t uniform across the industry, which means the insurer you’re currently with might be one of the more punishing ones, or one of the more forgiving ones, and you won’t know until you compare.
This matters more in Tennessee than it might elsewhere, because the state already carries real driving risk on top of whatever your credit adds. MoneyGeek’s 2026 rate analysis put Tennessee’s average minimum-coverage premium at $47 a month statewide, with Memphis running well above that average due to higher claims density in the metro area. Stack a credit penalty on top of a Memphis zip code and a driver can end up paying a genuinely large premium for a policy that still only meets the state minimum.
Why This Hits Harder Than People Expect
The irony is that credit-based pricing often lands hardest on people already dealing with financial strain, sometimes the same people who most need an affordable premium to stay legally insured. Tennessee already has one of the higher uninsured driver rates in the country. Every dollar credit scoring adds to a premium is a dollar that makes it more likely someone lets their coverage lapse instead of paying it, which doesn’t help anyone, including the insurers relying on the model.
If your credit took a hit from a medical bill, a job loss, or a divorce, and you’re now seeing your car insurance quote climb for reasons that have nothing to do with how you drive, that’s a legitimate frustration. It’s also, unfortunately, allowed under current Tennessee law.
What to Do If Your Score Is Working Against You
There isn’t one fix, and a couple of the obvious moves can backfire, so it’s worth going through this in order.
- Pull your credit report and check for errors. Free reports are available at AnnualCreditReport.com. A collection account that isn’t yours, a balance reported incorrectly, or an account that should have aged off your report can all drag your score down for no legitimate reason. Disputing and correcting an error can raise your score within a billing cycle or two.
- Pay down revolving balances before applying for new coverage. Credit utilization, how much of your available credit you’re using, carries real weight in these models. Getting a maxed-out card under 30% utilization can move your score meaningfully in a month or two.
- Don’t open new credit accounts right before shopping for insurance. A flurry of new inquiries can temporarily lower your score at the exact moment you don’t want it lowered. If you’re planning to shop insurance in the next few months, hold off on financing furniture or opening a store card.
- Shop multiple insurers rather than assuming your current one is competitive. Because the credit penalty varies so much by company, the carrier that’s expensive for you because of your credit tier might not be the most expensive one available. This is where comparing quotes actually pays off, more than it does for drivers with strong credit who tend to get similar pricing everywhere.
- Ask about usage-based or telematics programs. Several insurers offer programs that track driving behavior, braking, mileage, time of day, and adjust pricing based on how you actually drive rather than leaning as heavily on credit. If your driving record is clean but your credit isn’t, this can offset some of the penalty.
- Consider your deductible carefully rather than defaulting to the highest one to cut the premium. Raising your deductible from $500 to $1,000 can lower your monthly bill, but if you don’t have that $1,000 sitting in savings, you’ve just traded a manageable monthly cost for a claim you can’t actually afford to file. This is a common mistake for drivers already stretched thin financially, and it tends to make the original problem worse, not better.
Where This Leaves You
If your credit score is low right now, the honest answer is that you’re probably going to pay more than a driver with the same record and better credit, at least in the short term. What you can control is making sure you’re not paying more than you have to on top of that. Comparing several insurers matters more here than almost anywhere else in the shopping process, since the credit penalty differs so much company to company. Some drivers in this position start by searching for cheap car insurance Tennessee options and narrowing from there based on how each quote treats credit specifically, rather than assuming the first number they see is representative of what’s actually available.
It also helps to look specifically at insurers or agencies that advertise experience working with lower credit tiers, since not every carrier prices this the same way. A resource built around car insurance for bad credit drivers can be a reasonable starting point if you want to understand which factors are actually driving your quote before you commit to a policy.
The Bottom Line
Credit-based insurance scoring is legal in Tennessee, disclosed nowhere on your bill, and often bigger than people expect. It’s not permanent, and it’s not applied the same way by every insurer. Checking your credit report for errors, paying down balances before you shop, and actually comparing quotes instead of auto-renewing are the three moves that make the most difference, in that order.