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The average full-coverage auto policy in the United States cost $2,144 a year at the end of 2025, down 6% after a 46% climb across 2022 to 2024 (Insurify). Averages settle nothing for an individual driver. Two policies at the same price routinely carry different liability limits, different deductibles, and different answers on the day of a claim. This page lays out what a policy contains, which decisions carry the money, and how to compare quotes line by line. State rules and state pages sit at the bottom, because the state you live in sets the floor under everything else.
Start here: Florida car insurance requirements and California car insurance requirements
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A policy is a bundle of separate coverages, each with its own limit and, in several cases, its own deductible. Comparing two quotes without checking which of these lines differ is the most common way to buy the wrong policy at a good-looking price.
No insurer sells a product called full coverage. The phrase is shorthand, and it usually means liability plus collision plus comprehensive. A policy described as full coverage can still leave you paying for your own rental car after a claim, stranded without roadside assistance, and exposed on a financed vehicle with no gap coverage. When a quote uses the phrase, ask which coverages are included and at what limits. The answer in writing is what you are actually being quoted; the phrase on its own does not tell you much.
Your deductible is what you pay toward a covered claim before the insurer pays anything. Raising the deductible lowers the premium and raises your exposure on the worst day of the year. The deciding question: could you pay the higher deductible at short notice, from money you actually hold, without borrowing? A yes makes the saving real. A no means the premium saving moved a predictable cost into an unpredictable one. Collision and comprehensive carry separate deductibles, and the two figures can differ. Glass, wind, and hail sometimes carry their own.
Collision and comprehensive insure the car's market value. As a car ages, that value falls while the premium for the coverage falls more slowly. When the annual cost of collision and comprehensive, plus the deductible, approaches a meaningful share of what the car would sell for, dropping one or both coverages and banking the difference becomes a rational trade for a driver who can absorb the loss. Liability always stays. Liability protects everything else you own.
Put the declarations pages side by side and match five lines: liability limits per person and per accident, property damage limit, collision deductible, comprehensive deductible, and the uninsured motorist limits. Any line that differs is a price difference with a reason attached. Then read the exclusions and the rental and roadside lines. Two quotes matched on those lines are genuinely competing. Everything else is two different products wearing similar prices.
Notify your insurance company about the accident, even if you're unsure whether you want to file a claim. Reporting an incident and filing a claim are not the same thing, and insurers record each differently, so ask yours how they treat the distinction. A claim that surfaces months later, after the other party has decided to pursue it, is much harder to handle than one your insurer has known about from the first day.
South Carolina is an at-fault state, so damage to your car can be paid through more than one route. You can claim against the at-fault driver's property damage liability coverage. If you carry collision, you can claim on your own policy instead: you pay your deductible, and your insurer may try to recover its payment and your deductible from the other driver's insurer. If the other driver has no insurance, the uninsured motorist property damage coverage South Carolina policies must include can pay, subject to a deductible of up to $200 allowed by state law. Which route is faster depends on how clear fault is and how responsive the other insurer is.
For a hit and run, the sequence and the police report matter to how the claim is classified; the walkthrough is linked below.
Ask for the decision in writing, with the specific policy language it rests on. Many disagreements turn out to be about how an incident was recorded rather than about coverage.
Use the insurer's internal appeal first; a second look with better documentation resolves more claims than people expect. If that fails, you can file a complaint with the South Carolina Department of Insurance, which reviews how a claim was handled. Filing is free. Drivers in other states can file with their own state's department of insurance.
Most insurers now offer a program that prices on how and how much you actually drive, measured through an app or a plug-in device. For low-mileage drivers and drivers whose record understates them, the discount can be real. Programs typically track mileage, time of day, hard braking and acceleration, and phone handling.
Before enrolling, ask whether the program can only lower your rate or can also raise it, because that varies by insurer. Ask what happens to the data, how long it is kept, and whether it could be used in a claim.
Start with liability. Price limits that cover what you own and earn: 100/300/100 is the working baseline for a driver with assets to protect. Add collision and comprehensive while the car carries a loan or holds real value, and match uninsured motorist limits to your liability limits.
Premiums reprice at renewal on repair costs, claims in your rating territory, and the insurer's filed rates. A clean record holds your individual factors steady; the pool around you still moves. Shopping the policy at renewal is the counterweight.
In most states, insurers use a credit-based insurance score in rating, and it can move a premium substantially. A small number of states restrict or ban the practice. Your state page states the rule where you live.
Uninsured motorist coverage pays your injuries and, where included, your vehicle damage, up to its limits. In South Carolina every policy must include uninsured motorist coverage for both injury and property damage. The Insurance Research Council estimates that 15.4 percent of drivers nationally were uninsured in 2023, about one in seven, which is why this line earns its premium.
It is enough to drive legally. Whether it is enough to protect what you own is a different question, and for most households the answer is no. Minimum limits were generally set decades ago and have not kept pace with vehicle or medical costs.
It depends on fault, your state, your insurer, and whether your policy includes accident forgiveness. A not-at-fault claim often has no effect. Ask your insurer how a specific incident would be rated before deciding whether to claim, but still report the accident.
Generally yes, if they had your permission, because coverage typically follows the vehicle. The exceptions are a household member formally excluded from the policy and someone who lives with you but was never disclosed to the insurer.
Often your own policy extends to a rental, and a credit card may add secondary coverage, but the order in which they respond is not obvious at the counter. Confirm what you already have before you are asked to decide in a hurry.
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Minimum liability limits, required coverages, and fault system for each state we cover — every figure sourced and dated.
Everything we cover, grouped by the decision you’re actually trying to make.
Address a distinct household, applicant, or owner situation without implying eligibility.
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Rules and availability can differ from state to state. Start from the page for yours.