Car Insurance Basics 101: Definition, Coverages and Costs


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Key Takeaways

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Car insurance protects you and your family against financial loss in a covered accident that causes bodily injuries or property damage.

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The best car insurance is the highest coverage you can afford. A policy may include liability insurance, comprehensive and collision coverage, personal injury protection and uninsured/underinsured insurance.

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Various factors affect the cost of car insurance — like your age, location, car model and driver profile — so comparing quotes from different providers can help you get the best and most affordable option.

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What Is Car Insurance?

Car insurance is a contract between you and the insurance company. You pay a monthly or yearly premium, and your insurer agrees to pay for losses from covered accidents when you file a claim. A claim is a formal request you make to your insurer for payment of covered losses.

The right coverage depends on your needs as a driver. Depending on your policy, your insurance may cover vehicle damage, medical expenses and property damage for you or others.

Types of Car Insurance Coverage

Accidents can happen anytime. Whether it's your fault or not, you need proper protection against possible expenses. Auto insurance covers these expenses. Your insurance type determines which costs your policy covers.

The main auto insurance coverages are:

  • Liability insurance
  • Comprehensive and collision insurance
  • Personal injury protection or medical payments insurance
  • Uninsured or underinsured motorist insurance

1. Liability Coverage

States have different auto insurance laws. Most states require minimum car insurance. This coverage protects against possible financial loss if you cause a car accident. It includes bodily injury liability and property damage liability for the other party but doesn't cover damage to you or your vehicle.

2. Collision Coverage

Collision insurance covers damage to your vehicle when you're at fault in an accident with another car or object, such as a fence, tree or light pole. It also covers single-car accidents that involve a rollover.

Lenders often require this coverage for financed or leased vehicles.

3. Comprehensive Coverage

Comprehensive insurance covers damage to your car from incidents you didn't cause, such as theft, fire, vandalism and hail.

For many drivers, minimum coverage isn't enough. Comprehensive and collision insurance provides financial protection for your vehicle.

Other Types of Car Insurance Coverage

Optional coverages can enhance your protection beyond standard policies. They offer added security against uninsured drivers, medical expenses and financial gaps if your car is totaled. Understanding these options helps you customize your policy to fit your needs.

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    Uninsured/Underinsured motorist coverage

    Protects you if the other driver doesn't have enough insurance

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    Medical payments (MedPay)

    Covers medical expenses for you and your passengers

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    Personal injury protection (PIP)

    Provides broader medical and lost wage coverage; required in no-fault states

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    Gap insurance

    Pays the difference between your car's actual cash value and loan balance if your vehicle is totaled

How Much Car Insurance Do You Need?

Each state sets its own minimum car insurance requirements, primarily for liability coverage. These typically include:

  • Bodily injury liability: Covers injuries to others in an accident you cause
  • Property damage liability: Pays for damage to another person's property
  • Uninsured/Underinsured motorist coverage: Protects you if the other driver lacks enough insurance (required in some states)
  • Personal injury protection: Covers medical expenses and lost wages for you and your passengers (required in no-fault states)

Minimum coverage provides only baseline protection. While it meets state laws, it doesn't determine how much coverage you should buy. A liability-only policy won't cover you and your vehicle if you have an accident.

For better financial protection, we recommend buying liability coverage at 100/300/100, plus comprehensive and collision coverage.

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STATES THAT DON'T REQUIRE CAR INSURANCE
  • Arizona and Tennessee: Both states accept a cash deposit or surety bond instead of a traditional policy as proof of financial responsibility.
  • Mississippi: Drivers can post a bond instead of standard insurance to meet financial responsibility requirements.
  • New Hampshire: Most drivers aren’t required to have insurance but must cover costs if they’re at fault in an accident.
  • South Carolina: Most drivers must carry insurance, but some can opt out by proving financial responsibility.
  • Virginia: Drivers can legally forgo insurance by paying a $500 uninsured motor vehicle fee, which offers no protection in an accident.

What Is a Car Insurance Claim?

When explaining car insurance for beginners, it’s important to cover claims. A claim is a formal request a policyholder files with their insurer to seek compensation for a covered loss. The insurer reviews the claim, determines its validity and issues payment to the policyholder if approved.

How to File a Car Insurance Claim

Acting quickly and staying organized helps avoid delays and speeds up your payout. Keep important information ready, such as the accident report and photos of the damage.

Here are the steps to make a car insurance claim:

  1. 1

    Gather evidence and documentation

    To help get your claim approved, gather evidence from the accident scene. Get the other driver's contact and insurance details. Call the police right after the accident to file a report. Take photos of the scene and damage. Try to get the names and contact information of any witnesses.

  2. 2

    Contact the insurance company

    Check your auto insurance policy and learn your provider's filing process. Some insurers want you to call your agent directly. Others offer online claim portals or mobile apps where you can file and track your claim. After you decide how to reach out, contact your insurance company or agent.

  3. 3

    Settle the claim

    Work with your claims adjuster, the person handling your claim. Get their contact information since they'll investigate the accident and review repair estimates and settlement options. Your adjuster will tell you if your claim is approved or denied.

How Does a Deductible Work?

Many factors affect your car insurance cost. One is your deductible — the amount you pay for damages when filing certain claims.

Not all coverage types have deductibles. Minimum coverage has no deductible. 

Deductibles apply only to:

  • Comprehensive and collision coverage
  • PIP coverage
  • Uninsured/underinsured motorist property damage coverage

A higher deductible usually means a lower premium because you pay more out-of-pocket when filing a claim. A lower deductible means a higher premium because the insurance company pays more.

You can set different deductibles for different coverage types. For example, you might choose a $500 collision deductible and a $1,000 comprehensive deductible.

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EXAMPLE OF CAR INSURANCE DEDUCTIBLE

If you have a $500 deductible for collision coverage and your at-fault accident results in $5,000 of damage to your vehicle, you pay your deductible of $500, and your insurer pays $4,500. But if you have a $1,000 deductible, you pay that amount, and your insurer pays $4,000.

How Much Does Car Insurance Cost?

The national average cost of car insurance is $1,358 per year or $113 per month for full coverage. Your actual price will vary based on location, ZIP code, age, gender, credit history, driving record, claims history and coverage level.

Car insurance may seem expensive, but its protection exceeds what you pay. For example, the average three-year cost of insurance is $4,272. This could give you up to $100,000 in bodily injury liability coverage per person, $300,000 per accident and $100,000 in property damage liability per accident.

Check your state's average auto insurance rates in the table below.

Alabama$1,002$477
Alaska$1,122$518
Arizona$1,553$756
Arkansas$1,333$518
California$1,608$675
Colorado$1,487$646
Connecticut$1,961$1,023
Delaware$2,163$1,323
District of Columbia$1,685$845
Florida$2,211$1,018
Georgia$1,484$735
Hawaii$890$386
Idaho$861$414
Illinois$1,174$489
Indiana$877$400
Iowa$1,077$344
Kansas$1,389$559
Kentucky$1,297$578
Louisiana$2,333$832
Maine$961$459
Maryland$1,577$911
Massachusetts$1,193$499
Michigan$1,905$825
Minnesota$1,295$581
Mississippi$1,172$484
Missouri$1,491$658
Montana$1,183$437
Nebraska$1,244$506
Nevada$1,985$1,065
New Hampshire$781$391
New Jersey$1,943$1,109
New Mexico$1,217$526
New York$2,620$1,451
North Carolina$1,178$563
North Dakota$969$424
Ohio$828$359
Oklahoma$1,175$503
Oregon$1,386$794
Pennsylvania$1,350$467
Rhode Island$1,443$754
South Carolina$1,899$963
South Dakota$1,236$381
Tennessee$1,137$459
Texas$1,702$805
Utah$1,233$671
Vermont$832$324
Virginia$1,159$570
Washington$1,387$714
West Virginia$1,375$644
Wisconsin$1,094$434
Wyoming$908$266
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HOW TO SAVE ON CAR INSURANCE

How to Buy Car Insurance

Buying car insurance involves assessing your coverage needs, comparing quotes and choosing a policy that fits your budget and lifestyle. Follow these steps to get the right protection at the best price:

  1. 1

    Assess your coverage needs

    Determine the coverage you need based on your finances, vehicle type and driving habits. For new or financed cars, get full coverage (liability, collision and comprehensive). For older vehicles you own outright, minimum coverage may be enough.

  2. 2

    Compare quotes from multiple insurers

    Rates vary significantly between insurance providers, so quotes from at least three companies. Use online comparison tools or work with an independent agent to find the best deal.

  3. 3

    Check for discounts and bundling options

    Many insurers offer discounts for bundling policies, having a clean driving record or enrolling in a defensive driving course. Ask about discounts to lower your premium.

  4. 4

    Review policy terms and exclusions

    Read the fine print to understand what's covered and what's not. Some policies exclude certain damages, like floods or rental car coverage. Make sure the policy meets your specific needs. This will help you determine if you need additional coverage.

  5. 5

    Finalize your purchase and get proof of insurance

    Once you’ve selected the right policy, make your first payment and receive your insurance card. Keep digital and physical copies as proof of coverage.

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MONEYGEEK EXPERT TIP

“Car insurance is competitive. Insurers want to grow their market share and win your business. Shop your policy by getting multiple quotes to compare costs and coverage.” — Mark Friedlander, Director, Corporate Communications, Insurance Information Institute

Where to Buy Car Insurance

Before choosing an insurance company, decide what you want in an insurer. Most providers offer similar core coverages. Your choice will depend on how much you value cost versus service quality.

Some new drivers want policies that meet state requirements while saving on monthly bills. MoneyGeek gathered average rates to find the cheapest car insurance companies.

Others prefer companies offering a balance of value and service quality. We also created a guide ranking the best car insurance options.

Car Insurance Calculator

MoneyGeek's car insurance calculator will give you a customized estimate of your auto insurance cost. It's free to use, requires no personal information and we won't send you any spam.

$192
High
$139
Average
$87
Low

Rates updated:

Apr 18, 2025

Insurance Carrier
MoneyGeek Score
Average Monthly
Payment
1
Capital Insurance Group

Capital Insurance Group

94
/of 100
$87
2
GEICO

GEICO

82
/of 100
$109
3
83
/of 100
$118
4
83
/of 100
$129
5
79
/of 100
$133
6
77
/of 100
$151
1
Capital Insurance Group

Capital Insurance Group

MoneyGeek Score
94
/of 100
Average Monthly Payment$87/mo
2
GEICO

GEICO

MoneyGeek Score
82
/of 100
Average Monthly Payment$109/mo
MoneyGeek Score
83
/of 100
Average Monthly Payment$118/mo
MoneyGeek Score
83
/of 100
Average Monthly Payment$129/mo
MoneyGeek Score
79
/of 100
Average Monthly Payment$133/mo
MoneyGeek Score
77
/of 100
Average Monthly Payment$151/mo
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Although MoneyGeek partners with some of the companies we recommend, our content is written and reviewed by an independent team of writers, editors and licensed agents. Learn more about our editorial policies and expert editorial team.

Understanding Car Insurance: Bottom Line

Car insurance rates and coverage options vary, so compare quotes and understand your policy. This guide explains car insurance basics, including how it works, what it covers and how to find the best coverage for your needs.

Learn About Car Insurance: FAQ

Understanding car insurance basics is key to finding the right coverage. This FAQ section answers common questions to help you confidently navigate policies, costs and coverage options.

How does car insurance work?

Do I need to get car insurance?

Is it okay to stick to liability-only car insurance?

What if I can’t afford car insurance?

Auto Insurance Basics: Our Review Methodology

MoneyGeek is a trusted source for auto insurance information because of its scientific approach to researching and developing fact-based content.

Our analysis includes data only from reputable sources. For this guide, we consulted the Insurance Information Institute, the leading online source for risk management and insurance information. It empowers consumers through education about insurance value for better financial decisions.

Mark Fitzpatrick, MoneyGeek's Head of Insurance and resident personal finance expert, developed this car insurance guide for beginners.

We follow a strict editorial policy to provide research-driven, unbiased recommendations on important financial topics.

Our team of writers, experts, reviewers and editors creates content through this process:

  • Research: Our data team gathers fact-based information from peer-reviewed articles.
  • Writing: Our experienced writers conduct additional research and combine information into easily understandable articles.
  • Editing, fact-checking and reviewing: Our editors verify all content for accuracy and timeliness. Most articles include insights from experts.
  • Publishing: We conduct quality assurance reviews before publishing to ensure all content meets our standards.

Car Insurance Guide: Related Articles

About Mark Fitzpatrick


Mark Fitzpatrick headshot

Mark Fitzpatrick, a Licensed Property and Casualty Insurance Producer, is MoneyGeek's resident Personal Finance Expert. With over five years of experience analyzing the insurance market, he conducts original research and creates tailored content for all types of buyers. His insights have been featured in publications like CNBC, NBC News and Mashable.

Fitzpatrick holds a master’s degree in economics and international relations from Johns Hopkins University and a bachelor’s degree from Boston College. He's also a five-time Jeopardy champion!

Passionate about economics and insurance, he aims to promote transparency in financial topics and empower others to make confident money decisions.


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