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How to get car insurance

Car insurance is regulated state by state, and the minimum your state requires is almost never enough to protect you. What each coverage type actually does, why liability limits matter more than the deductible, and what drives your premium.

Short answer

Almost every state requires liability insurance, but state minimums are typically far too low to cover a serious accident — the excess comes out of your assets. Compare quotes from several insurers, because pricing for identical drivers varies widely. Collision and comprehensive are optional unless a lender requires them, and are usually worth dropping only on low-value cars.

Car insurance in the United States is regulated at state level, which means the required coverage, the minimum amounts, the rules for claims and even whether fault matters all change when you cross a state line.

Almost every state requires drivers to carry some form of financial responsibility, usually liability insurance. What varies is how much, what else is mandatory, and what happens when someone without insurance hits you.

The most important thing to understand about the minimums is that they are floors set by legislatures, not assessments of what would actually cover a serious accident. A single hospital admission or a written-off newer vehicle can exceed a state minimum comfortably, and the difference is your personal liability.

Pricing is the other area where assumptions cost money. Insurers weigh the same driver very differently, and identical coverage from two companies can differ substantially in price. Shopping around is not a marginal optimisation here — it is where most of the available saving is.

What each coverage type actually does

Liability coverage pays for injury and property damage you cause to other people. It does not pay for your own vehicle or your own injuries. It is the coverage states require, and it is expressed as separate limits: an amount per injured person, a total per accident, and an amount for property damage.

Collision covers damage to your own vehicle from a crash, regardless of who was at fault, subject to your deductible. Comprehensive covers almost everything else that can happen to a parked or moving car — theft, fire, hail, flood, vandalism, falling objects and animal strikes.

Neither collision nor comprehensive is legally required. Both are effectively required if you have a loan or lease, because the lender has a financial interest in the vehicle and will demand them. If a lender-required policy lapses, they can buy expensive cover on your behalf and bill you for it.

Uninsured and underinsured motorist coverage protects you when the other driver has no insurance or not enough. This is required in some states and optional in others, and it is one of the most consistently underrated coverages available — a substantial share of drivers on US roads carry no insurance at all, and when one of them injures you, your own policy is the only realistic source of recovery.

Medical payments coverage, and in some states personal injury protection, pays medical costs for you and your passengers regardless of fault. In states with no-fault systems, personal injury protection is mandatory and functions as the primary route for injury claims.

Optional extras include roadside assistance, rental reimbursement while your car is repaired, and gap coverage that pays the difference between what you owe on a loan and what the car is actually worth. Gap coverage matters specifically for newer financed vehicles, which can be worth less than the outstanding loan for the first few years.

Read what is excluded. Using your personal vehicle for delivery or rideshare work is commonly excluded from a standard personal policy, and drivers doing that work without appropriate cover are frequently uninsured at exactly the moment they need not to be.

Why state minimums are the wrong target

Every state that requires liability insurance sets minimum amounts, and those amounts were in many cases set decades ago and adjusted rarely. Medical and vehicle repair costs have not stayed still.

The arithmetic is straightforward and uncomfortable. If you cause an accident that produces costs above your liability limit, the insurer pays up to the limit and the rest is yours. That can mean a judgment against you, wage garnishment where state law permits it, and a lien on assets.

The counterintuitive part is that raising liability limits is usually cheap. The bulk of the premium covers the likelihood of a claim occurring at all, and the incremental cost of higher limits is generally modest relative to the protection gained. Anyone with savings, home equity or future earnings to protect is usually better served by higher liability limits than by lowering a deductible.

Property damage limits deserve attention too. A single collision with a modern vehicle can exceed a low property damage minimum on its own, and multi-vehicle accidents multiply it.

Umbrella policies sit above your auto and home liability and extend coverage substantially for a relatively small premium. They are worth considering for anyone with meaningful assets, and are commonly overlooked.

Uninsured motorist limits should generally match your liability limits. Protecting other people better than you protect yourself is a common and illogical outcome of buying on price alone.

None of this means buying every available coverage. It means putting the money where the catastrophic risk is, which is liability and uninsured motorist, rather than into low deductibles that only ever save small amounts.

What drives your premium

Insurers price on the likelihood and expected cost of a claim, and the factors they may use are set by state regulation. Some states restrict or ban specific rating factors that others permit, which is one reason the same driver can be priced very differently in two states.

Driving record is the most direct factor. At-fault accidents and moving violations raise premiums for a period of years, and the increase from a single serious violation can be substantial.

The vehicle matters more than people expect, and not in the direction they assume. Repair cost, theft rates, safety performance and the cost of parts all feed in, and an expensive car is not automatically expensive to insure while an ordinary car with costly sensors in the bumpers can be.

Where you live affects pricing considerably, because claim frequency, theft rates, weather exposure, repair costs and litigation patterns vary by area. Moving a short distance can change a premium noticeably.

How much you drive matters. Lower annual mileage generally means lower premiums, and usage-based programmes that monitor driving through an app or device can reduce premiums for careful low-mileage drivers — while also collecting detailed data about your driving, which is a genuine trade-off worth considering rather than dismissing.

Credit-based insurance scores are used in most states, on the basis that they correlate with claim likelihood. Several states restrict or prohibit this. Where it applies, improving credit can reduce insurance costs, which is not obvious to most people.

Coverage lapses are penalised. Even a short gap between policies marks you as higher risk and raises subsequent premiums, so cancelling coverage on a car you are not driving is usually a false economy — most insurers offer a reduced storage or comprehensive-only option instead.

Discounts are numerous and frequently unclaimed: bundling home and auto, insuring multiple vehicles, safe driver records, defensive driving courses, good student status, anti-theft devices, paying annually rather than monthly, and paperless billing. Asking directly what discounts apply is worth doing at each renewal.

Buying a policy and comparing properly

Get quotes from several insurers. Prices for identical drivers and identical coverage vary widely because each company weighs risk factors differently, and this variation is the single largest source of saving available to most people.

Compare like with like. A cheaper quote with lower liability limits, a higher deductible or missing uninsured motorist coverage is not cheaper — it is less insurance. Write down the specific limits and deductibles and compare those, not the headline premium.

You can buy direct from an insurer, through a captive agent representing one company, or through an independent agent or broker who can quote several. Independent agents are useful for comparing, though no single source covers the whole market.

Check the insurer as well as the price. State insurance departments publish complaint data, and financial strength ratings indicate an insurer's ability to pay claims. A company that is cheap and difficult at claim time has sold you very little.

Be accurate on the application. Misstating your address, mileage, who drives the car, or how it is used can result in a claim being reduced or denied, and is treated as misrepresentation rather than a mistake.

List all regular drivers in the household. Insurers generally expect household members with licences to be declared, and an undeclared driver involved in an accident is a common source of disputes.

Review at renewal rather than letting it roll. Premiums drift upward, circumstances change, and the introductory price that made an insurer attractive frequently does not survive a few renewals. Re-shopping every year or two is straightforward and is where the saving actually appears.

Recheck after any life change: moving, marrying, a teenager becoming licensed, a change in commute, or paying off a car loan — that last one is the point at which dropping collision on an older vehicle becomes worth considering.

Claims, and what to do after an accident

At the scene, check for injuries and call emergency services if anyone is hurt. Move vehicles out of traffic if it is safe and legal to do so, since secondary collisions cause a meaningful share of injuries.

Exchange names, contact details, insurance company and policy number, and vehicle registration with the other driver. Photograph the vehicles, the damage, the wider scene, road conditions, signage and the other vehicle's plate. Get contact details for any witnesses, because they become impossible to find later.

Report to police where required. Many states require a report above a damage threshold or where anyone is injured, and insurers frequently want one. A police report is also the most useful independent record if the other driver's account changes.

Do not admit fault at the scene. Fault is a legal determination made on evidence, apologising is easily construed as an admission, and you may not know what actually happened — a mechanical failure or a third vehicle may be involved.

Notify your insurer promptly even if you do not intend to claim, because policies contain notification requirements and late notice can jeopardise coverage. Notifying is not the same as claiming.

Understand how fault affects the process in your state. In at-fault states, the responsible driver's insurer pays. In no-fault states, your own policy covers your injuries regardless, with limits on when you can sue. Comparative and contributory negligence rules also vary, and in a few states being even slightly at fault can bar recovery entirely.

You generally choose your own repair shop. An insurer may recommend one and may guarantee that shop's work, but in most states cannot compel you to use it. Ask whether the estimate uses original manufacturer parts or aftermarket equivalents, since that materially affects the repair.

If your car is declared a total loss, the insurer pays its actual cash value rather than what you paid or what you owe. If you disagree with the valuation, you can supply evidence of comparable local sales — this is negotiable more often than people realise.

If a claim is denied or underpaid and the insurer will not move, your state insurance department accepts complaints and can require the insurer to respond. That route is free and considerably more effective than most people expect.

Key takeaways

  • State minimum liability limits are floors set by legislatures, not enough to cover a serious accident — anything above the limit comes out of your own assets.
  • Raising liability limits is usually cheap relative to the protection gained; lowering a deductible is expensive relative to what it saves.
  • Uninsured motorist coverage is the only realistic recovery when an uninsured driver injures you, and its limits should generally match your liability limits.
  • Quotes for identical drivers and identical coverage vary widely between insurers — comparing properly is where most of the available saving is.
  • Never admit fault at the scene, and notify your insurer promptly even if you do not intend to claim, because late notice can jeopardise coverage.

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At a glance

Regulation
State levelRequirements and rules differ by state
Liability
Required almost everywhereCovers damage you cause to others
State minimums
Usually too lowYou are personally liable above the limit
Collision
OptionalYour vehicle in a crash, regardless of fault
Comprehensive
OptionalTheft, weather, fire, animals, falling objects
Uninsured motorist
Strongly advisableRequired in some states, optional in others
Quotes
Vary widelySame driver, same coverage, different prices
Lapses
Raise future premiumsEven a short gap in coverage counts against you
Questions people also ask

How to get car insurance — FAQ

Is car insurance required in every state?

Almost every state requires drivers to demonstrate financial responsibility, usually through liability insurance, and a small number allow alternatives such as posting a bond. What is required, how much, and whether uninsured motorist or personal injury protection is mandatory all vary by state, so check your own state's rules.

Are state minimum limits enough?

Usually not. Minimums were often set long ago and adjusted rarely, while medical and repair costs have risen substantially. If you cause an accident costing more than your limit, the excess is your personal liability — which can mean a judgment, wage garnishment and a lien on assets. Higher limits are typically inexpensive.

What is the difference between collision and comprehensive?

Collision covers damage to your own vehicle from a crash regardless of fault. Comprehensive covers nearly everything else — theft, fire, hail, flood, vandalism, falling objects and animal strikes. Neither is legally required, but a lender will require both while you have a loan or lease on the vehicle.

Do I need uninsured motorist coverage?

It is required in some states and optional in others, and it is one of the most underrated coverages available. A substantial share of drivers carry no insurance at all, and when one of them injures you, your own policy is usually the only realistic source of recovery. Match its limits to your liability limits.

Why is my car insurance so expensive?

Premiums reflect driving record, vehicle repair and theft costs, where you live, annual mileage, coverage levels and — in most states — credit-based insurance scores. Coverage lapses raise premiums too. Which factors an insurer may use is set by state regulation, which is why identical drivers are priced differently across state lines.

Should I use my insurer's recommended repair shop?

You generally choose your own shop; in most states an insurer can recommend one but cannot compel you to use it. Insurers often guarantee work at their network shops, which has value. Ask specifically whether the estimate uses original manufacturer parts or aftermarket equivalents, because that materially affects the repair.

What should I do immediately after a car accident?

Check for injuries and call emergency services if needed, move vehicles out of traffic if safe, and exchange insurance and contact details. Photograph everything and collect witness details. Report to police where required. Do not admit fault — that is a legal determination — and notify your insurer promptly even if you may not claim.

Read next

Sources & provenance

Facts verified

  1. 1.Consumer information RegulatorNational Association of Insurance CommissionersUsed for: Coverage types, shopping guidance and consumer protections
  2. 2.Auto insurance RegulatorNational Association of Insurance CommissionersUsed for: Liability, collision, comprehensive, uninsured motorist and personal injury protection explained
  3. 3.Insurance topics RegulatorNational Association of Insurance CommissionersUsed for: Rating factors, credit-based insurance scores and state regulatory variation
  4. 4.State insurance departments RegulatorNational Association of Insurance CommissionersUsed for: Directory of state regulators that handle complaints and publish complaint data
  5. 5.NAIC RegulatorNational Association of Insurance CommissionersUsed for: The organisation of state insurance regulators and its consumer resources
  6. 6.What is covered by a basic auto insurance policy IndustryInsurance Information InstituteUsed for: Coverage components, optional extras including gap and rental reimbursement
  7. 7.Facts and statistics: auto insurance StatisticsInsurance Information InstituteUsed for: Uninsured driver prevalence and claim cost data
  8. 8.Insurance Information Institute IndustryInsurance Information InstituteUsed for: Industry-published consumer guidance on shopping, claims and total loss valuation
  9. 9.Motor vehicle services OfficialUSA.govUsed for: State motor vehicle agencies and financial responsibility requirements
  10. 10.Complaints about cars OfficialUSA.govUsed for: Routes for complaints about vehicles, repairs and related services

Not a source — AI-assisted analysis on this page

  • AI-assisted analysis — deductible versus liability limitThe framing that money is better allocated to higher liability and uninsured motorist limits than to a lower deductible, and the working rule of setting the deductible at the highest amount you could comfortably pay from savings, is our analysis of the trade-off. It is not a recommendation published by the NAIC, any state insurance department or the Insurance Information Institute, and the right balance depends on your own financial position.

Coverage definitions, rating factors, credit-based insurance scores, state regulatory variation and complaint routes come from the NAIC as cited. Coverage components, uninsured driver prevalence and total loss valuation practice come from the Insurance Information Institute, which is an industry-funded body rather than a regulator. Financial responsibility requirements come from USA.gov. Required minimum limits, whether uninsured motorist or personal injury protection is mandatory, no-fault versus at-fault systems, negligence rules, permitted rating factors, police report thresholds and repair shop choice rules are all set by individual states and differ substantially — no state-specific figures or rules are stated here because they would be wrong for most readers. Your state insurance department is the authority for your own state. One passage is marked as AI-assisted analysis. Nothing here is insurance or legal advice.

Facts on this page are taken from the sources listed above — U.S. federal agencies, state governments, regulators and official statistical releases. Comparisons, judgments and "which option suits whom" conclusions are AI-assisted analysis written over those sources; they are marked in the text and listed as an AI-analysis entry in the sources, not attributed to any authority. Rates, thresholds, fees and processing times change, often at the start of a calendar or tax year; figures are current as of the review date shown and should be confirmed with the responsible agency before you rely on them. A great deal of American law is state law — where a rule differs by state, this site says so.