How Much Car Insurance Do I Need? Liability Limits Explained

Quick summary: State minimum car insurance keeps you legal but rarely protects your savings. Most drivers with assets should carry at least 100/300/100 liability with matching uninsured motorist coverage; full coverage averaged about $2,357 a year in 2026 versus $650 for minimum coverage.

Car next to a shield and a coverage meter showing liability limits

Buying only your state’s minimum car insurance is the cheapest option today and potentially the most expensive mistake tomorrow. This guide explains each coverage on your policy, what the numbers like 100/300/100 mean, how much coverage most drivers should carry and how much it costs.

Understanding liability limits (the three numbers)

Liability coverage pays for injuries and damage you cause to others. Limits are written as three numbers in thousands of dollars:

NumberMeaningExample: 100/300/100
FirstBodily injury per personUp to $100,000 for each injured person
SecondBodily injury per accidentUp to $300,000 total for all injured people
ThirdProperty damage per accidentUp to $100,000 for cars, buildings and property you damage

If damages exceed your limits, you can be personally sued for the difference, putting your savings, home equity and future wages at risk.

Every coverage on a car insurance policy

CoverageWhat it pays forRequired?
Bodily injury liabilityOther people’s medical bills, lost wages, legal costsRequired in almost every state
Property damage liabilityOther people’s cars and propertyRequired in almost every state
Uninsured/underinsured motorist (UM/UIM)Your injuries when the at-fault driver has no or too little insuranceRequired in some states
Personal injury protection (PIP) / medical paymentsYour and your passengers’ medical bills regardless of faultRequired in no-fault states (e.g., Florida, New York, Michigan)
CollisionDamage to your car from a crash, minus deductibleRequired by lenders on financed or leased cars
ComprehensiveTheft, hail, flood, fire, vandalism, animal strikesRequired by lenders on financed or leased cars
Rental reimbursement, roadside, gapOptional extrasOptional (gap often required on some leases)

State minimums are low

Every state sets minimum liability limits, and many are far below what a serious accident costs. A few examples:

StateMinimum liabilityNotes
California30/60/15Raised from 15/30/5 in 2025
Texas30/60/25—
North Carolina50/100/50Raised in July 2025; UM/UIM also required
New York25/50/10Plus $50,000 PIP and uninsured motorist coverage
FloridaNo bodily injury minimumRequires $10,000 PIP and $10,000 property damage

A single hospital stay after a crash can exceed $30,000, and a new SUV can cost more than $50,000 to replace — more than many minimum property damage limits.

How much car insurance should you carry?

Your situationSuggested liabilityOther coverage
Few assets, older carAt least 50/100/50UM/UIM matching your liability; consider dropping collision on a low-value car
Homeowner or moderate savings100/300/100UM/UIM 100/300; collision and comprehensive if the car is worth more than ~10x the premium
Significant assets or high income250/500/100 or higherAdd a $1 million+ umbrella policy
Financed or leased carWhatever you choose aboveCollision + comprehensive required; consider gap insurance

A simple rule of thumb

Carry liability limits at least equal to your net worth (what you own minus what you owe), and add an umbrella policy if your assets exceed your auto limits. See what umbrella insurance is and who needs it.

How much does it cost?

A late-2026 national analysis put average costs at about $2,357 per year (~$196/month) for full coverage and $650 per year (~$54/month) for state-minimum coverage, for a 35-year-old driver with a clean record and good credit.

Driver profile (full coverage)Approximate average per year
Clean record, good credit$2,357
One speeding ticket$3,022
One at-fault accident$3,514
Poor credit$3,939
DUI$4,424

Going from minimum limits to 100/300/100 liability usually costs much less than the gap between “minimum” and “full coverage,” because most of the full-coverage price is collision and comprehensive.

Choosing your deductibles

  • Collision and comprehensive have deductibles (often $500 or $1,000).
  • A higher deductible lowers your premium, but choose an amount you could pay tomorrow without stress.
  • Some states offer $0 glass deductibles for windshield repairs.

Step-by-step: build your policy

  1. Check your state minimums and whether you live in a no-fault state.
  2. Estimate your net worth to choose liability limits.
  3. Match UM/UIM to your liability limits.
  4. Decide on collision and comprehensive based on your car’s value.
  5. Pick deductibles you can afford.
  6. Get at least three quotes with identical limits — see how to compare insurance quotes.

Bottom line: state minimums keep you legal, not protected. Most drivers with any savings should carry at least 100/300/100 with matching uninsured motorist coverage, and add an umbrella policy when assets grow. Want to cut the cost? Read 10 ways to lower your car insurance premium.

Requirements vary by state and change over time. Check your state insurance department. This is general information, not personalized insurance advice.

Frequently asked questions

What does 100/300/100 mean in car insurance?

It means $100,000 of bodily injury coverage per person, $300,000 of bodily injury coverage per accident and $100,000 of property damage coverage per accident.

Is state minimum car insurance enough?

Usually not. Minimum limits such as 30/60/15 can be exhausted by a single serious accident, leaving you personally responsible for the rest.

How much liability insurance should I have?

A common guideline is liability limits at least equal to your net worth, with 100/300/100 as a reasonable minimum for most drivers with savings or a home.

How much does full coverage cost compared to minimum coverage?

A late-2026 national analysis found averages of about $2,357 per year for full coverage and $650 for state-minimum coverage for a driver with a clean record and good credit.

Do I need uninsured motorist coverage?

It is highly recommended and required in some states. It pays for your injuries when the at-fault driver has no insurance or too little.

Raimundo Oliveira

Written by

Raimundo Oliveira

Founder & Editor, AllCover Quotes

Raimundo Oliveira is the founder and editor of AllCover Quotes and the Redevix network of websites. He is a digital publisher and SEO specialist who researches insurance topics using official sources — state insurance departments, government consumer resources and insurers’ own policy documents — and turns them into clear, practical guides. Raimundo is not a licensed insurance agent: his guides are educational and do not replace advice from a licensed professional.

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