How Does Car Insurance Work?

adminMarch 3, 2026

0 45 5 minutes read

Car insurance provides financial protection if you’re in an accident or your car is damaged by something else. You pay a premium in exchange for coverage. However, exactly how it works depends on your state’s laws and the coverage you select.

Key Takeaways:

Most drivers need to purchase car insurance; it’s required in every state except New Hampshire.
Car insurance protects against financial loss from accidents, personal injuries, hit-and-run accidents, non-collision vehicle damage, car theft and more. However, the perils that are covered vary based on your coverage.
Our research shows car insurance premiums average $2,012 per year. But rates are highly individualized and vary based on numerous factors.

What Is Car Insurance and How Does It Work?

Car insurance provides financial protection for car accidents, theft and other vehicle damage. Policies generally include a combination of liability coverage for when you’re at fault in an accident and physical damage coverage for your car. Some also include coverage for medical costs and other related expenses.

However, policies are customizable, so you can select your desired coverage types and limits – the maximum amount your insurer will pay out for that coverage. Most states mandate specific coverage. Lenders and lessors often require additional protections if you finance or lease your vehicle.

As the policyholder, you pay a premium in exchange for coverage. You can choose to pay this in a lump sum or spread it out over monthly payments. Your rate depends on many factors, including your age, gender, driving record, coverage selections, credit history and ZIP code. Most insurers also offer discounts to help you save money.

If you have to file a claim with your insurer, you may have to pay your deductible, depending on the type of damage. Your deductible is the amount you pay out of pocket for certain coverage types before your policy kicks in to cover the rest.

State-required liability coverage doesn’t have a deductible, but collision and comprehensive coverage do. When you buy your policy, you select your deductible amount; common options are $500 or $1,000.

Do I Need Car Insurance?

Car insurance is required in every state except New Hampshire. You must carry at least the minimum amount of coverage required in your state, but you can buy more. If you finance or lease your vehicle, your lender or lessor might require that you have other coverage types, like collision and comprehensive.

Mark Friedlander, senior director of media relations at the Insurance Information Institute, known as Triple-I, said that you break some “serious laws” if you don’t buy car insurance. “You could have your license and registration suspended, pay large fines, [and] even [face] jail time in some situations if you’re a multiple offender [and] you get caught without insurance. So it’s really important to have insurance,” he said.

Plus, if you don’t meet your lender’s or lessor’s requirements, they could issue force-placed insurance, which would add to the cost of your loan payment. Your vehicle could also be repossessed for not having coverage.

“The purpose of insurance is financial protection for you and your family to make sure you are protected from a covered loss. If you cause an accident, it can be very expensive, not only repairing the other parties’ vehicles, but [also paying] medical costs [and] potentially legal costs if there’s litigation involved. And without adequate insurance coverage, you are not protected from any of that,” continued Friedlander.

How Much Car Insurance Do I Need?

While states require a minimum amount of coverage, you can buy higher limits and additional coverages for added financial protection.

Consider the following things to help you decide how much car insurance you need:

Your state’s laws
Your lender’s or lessor’s requirements
Your car’s value
Your financial situation
How much protection you want

You can also consult a licensed agent in your state for assistance deciding what’s best for you.

What Does Car Insurance Cover?

What your car insurance policy covers depends on the coverage types you select. If you buy minimum coverage, you’ll only have the state’s legally required coverage. Full coverage often includes your state’s required coverage plus collision and comprehensive coverage.

Standard coverages often required by states, or by loan or lease agreements, include:

Additional Car Insurance Coverage

You can customize your policy by adding optional coverages. Options may vary by insurer, but here are some common coverage types to consider:

Gap insurance: Guaranteed asset protection (“gap” insurance) covers the difference between your insurance payout (your vehicle’s actual cash value) and your auto loan balance if your car is totaled or stolen. Your lender or lessor may require that you carry gap insurance.
Rental car reimbursement: This helps cover the cost of a rental car if your vehicle is damaged or totaled. It typically includes a set daily limit that you can use toward a rental car.
Accident forgiveness: Some insurers offer accident forgiveness, a benefit that prevents your premium from increasing after your first at-fault car crash.
Roadside assistance: Roadside assistance provides on-site emergency service to help get your car back on the road. Details depend on your insurer, but this add-on often covers fuel delivery, battery jumpstarts, towing and lockout assistance.
Rideshare insurance: Standard car insurance policies typically exclude coverage while driving for a rideshare company like Lyft or Uber. While rideshare companies may offer limited protection to their drivers when driving passengers, this add-on covers any gaps, including while you’re waiting for someone to book a ride.

What Does Car Insurance Not Cover?

It’s important to understand that car insurance doesn’t cover every situation you may encounter. It doesn’t cover your vehicle’s normal wear and tear or routine maintenance, such as an oil change or tire rotation. Any custom parts or modifications added to your vehicle may not be covered unless you purchase custom parts and equipment coverage.

Your policy also excludes coverage in certain scenarios, including intentional damage, racing or other illegal activity and rideshare driving (unless you buy rideshare coverage). If you choose to exclude certain drivers from your policy, you wouldn’t be covered if they drive your car and get into an accident.

How Much Does Car Insurance Cost?

According to our report on the cheapest car insurance companies, car insurance costs an average of $2,012 per year. However, rates are highly individualized and vary based on a number of factors.

The chart below includes average annual rates, which are provided for comparison purposes only. Keep in mind that your actual rate may differ.

Factors That Affect Your Car Insurance Premium

Car insurance rates are highly individualized. When insurers set your premium, they consider various factors to assess your risk, including your age, gender, vehicle, driving history, credit-based insurance score and ZIP code. Your rate can also differ based on the coverage and insurer you choose.

Key Takeaways:

Do I Need Car Insurance?

How Much Car Insurance Do I Need?

What Does Car Insurance Cover?

Additional Car Insurance Coverage

What Does Car Insurance Not Cover?

How Much Does Car Insurance Cost?

Factors That Affect Your Car Insurance Premium

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