How to Choose the Right Car Insurance Limits for Your Situation

What insurance limits actually mean

Car insurance limits are the maximum dollar amounts your insurance company will pay if you cause an accident. When you see a policy written as "100/300/100," those three numbers represent three separate limits: bodily injury per person, bodily injury per accident, and property damage.

The first number ($100,000 in that example) is what the insurer will pay toward one person's medical bills, lost wages, and pain and suffering if you injure them. The second number ($300,000) is the total the company will pay for all injured people in a single accident. The third number ($100,000) is the maximum for damage to someone else's car, home, or other property.

Your state sets a legal minimum — usually something like 25/50/25 or 15/30/10 — but that minimum is often too low to protect your actual assets. If you cause a serious accident and your limits are too low, you can be sued for the difference, and a court can garnish your wages or seize your bank accounts.

Key Takeaways

• Your state requires a legal minimum, but that minimum usually does not cover the full cost of a serious accident.
• The right limits depend on what you own and what a court could take from you if you lose a lawsuit.
• Most financial advisors suggest at least 100/300/100, and higher limits if you own a home or have significant savings.
• Raising your limits from the state minimum to 100/300/100 typically costs $15 to $40 per year in additional premium.
• An umbrella policy can cover costs above your car insurance limits and is often cheaper than raising those limits very high.

How much you own matters more than how much you earn

The core question is: what could a court take from you if someone wins a judgment against you? If you rent an apartment and have $5,000 in savings, a judgment for $200,000 will hurt, but the court cannot take much. If you own a home worth $400,000 and have $100,000 in retirement accounts, a large judgment is a real threat to your financial security.

A common rule is to set your bodily injury limits (the first two numbers) to at least match your net worth — the value of everything you own minus what you owe. If your home, car, savings, and retirement accounts add up to $300,000, then 100/300/100 limits leave you exposed. You would want something closer to 250/500/250 or higher.

Property damage limits (the third number) are usually less critical because car-on-car damage is often capped by the other driver's car value. A $100,000 property damage limit covers almost any single vehicle. The exception is if you hit a building, a utility pole, or multiple parked cars — then property damage can climb quickly.

State minimums and why they are not enough

Every state requires drivers to carry liability insurance, but the minimums vary widely. Some states require as little as 15/30/5 (meaning $15,000 per person, $30,000 per accident, $5,000 property damage). Others require 25/50/25 or 30/60/25. A few states have higher floors.

These minimums were set years ago and have not kept pace with medical costs. A serious injury — broken bones, surgery, months of physical therapy — can easily cost $100,000 to $200,000. If you cause that accident and your limit is $25,000, you are personally responsible for the remaining $75,000 to $175,000, and the injured person's lawyer will pursue you for it.

Carrying only the state minimum is legal, but it is a financial risk that costs almost nothing to reduce. Moving from 25/50/25 to 100/300/100 typically adds $15 to $40 per year to your premium, depending on your age, driving record, and location.

How to think about bodily injury versus property damage limits

Bodily injury limits (the first two numbers) are where most of your risk sits. A single person can sue you for hundreds of thousands of dollars if you cause a serious injury. Property damage limits (the third number) are usually lower because property is easier to value and repair — a car is worth what it costs to replace.

A reasonable starting point for most drivers is 100/300/100. This means you will pay up to $100,000 toward one person's injuries, up to $300,000 total for all injuries in one accident, and up to $100,000 for property damage. For someone with a home or significant savings, 250/500/250 or 300/500/300 is more protective.

If you have very little to lose — you rent, you have minimal savings, you have no dependents — the state minimum may be legally sufficient, though it still leaves you exposed to wage garnishment. If you have a home, retirement accounts, or a stable income, higher limits are worth the small cost.

When an umbrella policy makes sense

An umbrella policy (also called excess liability insurance) sits on top of your car insurance and covers costs above your car insurance limits. If you cause an accident and the judgment is $500,000, but your car insurance limit is 300/500/300, the umbrella policy would cover the remaining $200,000 — up to the umbrella limit, which is often $1 million.

Umbrella policies are usually cheap — $150 to $300 per year for $1 million in coverage — because they only pay when your underlying car insurance is exhausted. Most insurers require you to carry a minimum car insurance limit (often 100/300/100 or 250/500/250) before they will sell you an umbrella.

An umbrella is especially useful if you own a home, have a high income, or have significant assets. It is also worth considering if you drive frequently or in high-traffic areas. The combination of reasonable car insurance limits plus an umbrella policy is often cheaper than raising your car insurance limits to very high amounts.

How your driving record and age affect what you should carry

Younger drivers and drivers with accidents or violations on their record are statistically more likely to cause an accident. If you fall into either category, higher limits make sense even if your net worth is modest. A single accident could be the difference between financial stability and serious debt.

Conversely, if you have a clean driving record and have been driving safely for decades, your personal risk of causing a major accident is lower. That does not mean you should carry only the state minimum — one accident can still happen — but it may mean you can be comfortable with 100/300/100 rather than 250/500/250.

Age also affects insurance costs. Younger drivers pay more for every dollar of coverage, so the cost difference between state minimums and higher limits is proportionally larger for them. However, younger drivers also have more years of earning potential ahead, which means a judgment against them can be enforced through wage garnishment for longer. This is another reason to carry higher limits when you are young.

How to compare limits across different insurers

When you get quotes from different insurance companies, ask for the same limits from each one. Request quotes at 25/50/25 (or your state minimum), 100/300/100, and 250/500/250. This lets you see the actual cost difference and decide what you are willing to pay.

Some insurers offer discounts for bundling (combining car and home insurance), paying in full, or maintaining a clean driving record. These discounts can sometimes make a higher limit cheaper than you expect. A few dollars per month adds up to $100 to $200 per year, which is real money, but it is also the cost of protecting yourself from a judgment that could be ten times larger.

Do not assume the cheapest quote is the best deal. A company that quotes $800 per year for state minimums might quote $850 for 100/300/100, while another company quotes $900 and $920 for the same limits. The second company is more expensive overall, but the cost difference between limits is smaller. Compare the total premium you will actually pay, not just the difference.

Frequently Asked Questions

What happens if I cause an accident and my limits are too low?

The injured person can sue you for the difference between what your insurance paid and their actual damages. If they win, a court can garnish your wages, seize your bank accounts, or place a lien on your home. This can continue for years or decades depending on your state's laws.

Do I need higher limits if I have a newer or more expensive car?

Your car's value affects your collision and comprehensive coverage (which protect your own car), not your liability limits. Liability limits should be based on what you own overall and what a court could take from you, not on your car's price. A person driving a ten-year-old car can cause just as serious an injury as someone driving a new one.

Can I change my limits after an accident?

You can change your limits at any time, but the new limits only explore to accidents that happen after the change takes effect. If you cause an accident on Monday and raise your limits on Tuesday, the accident is covered under the old limits. Do not wait until after an accident to increase coverage.

Is 100/300/100 enough if I own a home?

It depends on your home's value and your total assets. If your home is worth $300,000 and you have $50,000 in savings, 100/300/100 leaves you exposed to a judgment larger than $100,000. Most financial advisors suggest at least 250/500/250 for homeowners, or a combination of 100/300/100 plus a $1 million umbrella policy.

Why do insurance companies charge so little to raise my limits?

Higher limits cost the insurance company more only if you cause an accident. Since most drivers do not cause accidents in any given year, the company's actual cost for offering higher limits is low. The small premium increase reflects that low expected cost, which is why raising limits is one of the cheapest ways to protect yourself.