The amount of car insurance you need depends on your state's minimum requirements, what you own, and what you can afford to lose

Every state sets a legal minimum for liability coverage — the insurance that pays for damage or injury you cause to someone else. That minimum is usually low: often $25,000 to $50,000 per person for injury, and $25,000 to $100,000 total per accident. But the minimum is not the same as the right amount for your situation. If you cause a serious accident, medical bills and vehicle damage can easily exceed what the state requires you to carry.

Beyond liability, you have to decide whether to buy collision and comprehensive coverage (which pay for damage to your own car), and how much to put down as your deductible. These choices depend on whether you own your car outright, whether you're financing it, and how much money you have set aside for emergencies.

Key Takeaways

  • Your state sets a legal minimum for liability coverage, but that minimum often leaves you underinsured if you cause a serious accident.
  • If you financed your car with a loan or lease, your lender will require you to carry collision and comprehensive coverage at their chosen deductible level.
  • If you own your car outright, collision and comprehensive are optional, but skipping them means you pay out of pocket for any damage.
  • A higher deductible (the amount you pay before insurance kicks in) lowers your monthly premium but means higher out-of-pocket costs when you file a claim.
  • Most insurance agents recommend liability limits of at least $100,000 per person and $300,000 per accident, well above the state minimum.

State minimum liability coverage and why it's usually not enough

Your state's Department of Insurance publishes the minimum liability limits you must carry. These vary by state — for example, Florida requires $10,000 per person and $20,000 per accident, while California requires $15,000 per person and $30,000 per accident. You can look up your state's requirement on your state's insurance regulator website or ask your insurance agent.

The problem with the minimum is that it was set years ago and has not kept pace with actual medical costs or vehicle prices. A single serious injury can result in $100,000 or more in medical bills, lost wages, and pain-and-suffering damages. If you cause that accident and carry only the state minimum, you will be personally responsible for anything above it — meaning your wages could be garnished or your assets seized to pay the judgment.

Insurance agents and consumer advocates typically recommend carrying at least $100,000 per person and $300,000 per accident in liability coverage. This costs only slightly more than the minimum but protects you from catastrophic financial loss. Some people with significant assets or high income carry even higher limits, such as $250,000 or $500,000 per person.

Collision and comprehensive coverage: required or optional

Collision coverage pays to repair or replace your car if you hit another vehicle, a tree, a guardrail, or any other object. Comprehensive coverage pays for damage from theft, weather, vandalism, or hitting an animal. These are separate from liability — liability pays for the other person's damage, while collision and comprehensive pay for yours.

If you financed your car with a loan or lease, your lender will require you to carry both collision and comprehensive at a deductible they specify, usually $500 or $1,000. This protects the lender's investment in the vehicle. You have no choice in the matter — it is a condition of the loan.

If you own your car outright, collision and comprehensive are optional. You can legally drive without them. However, if you cause an accident or your car is damaged, you will pay the full repair cost yourself. The decision usually comes down to the car's age and value. If your car is worth $3,000 and collision coverage costs $400 a year, paying out of pocket for repairs may make sense. If your car is worth $25,000, the risk is usually too high to skip coverage.

How deductibles affect your monthly payment and out-of-pocket costs

Your deductible is the amount you agree to pay toward a claim before your insurance company pays the rest. Common deductibles are $250, $500, $1,000, and $2,500. A higher deductible means a lower monthly premium; a lower deductible means a higher monthly premium.

The trade-off is straightforward: if you choose a $1,000 deductible instead of $500, you might save $15 to $30 per month. But if you have an accident, you will pay $1,000 out of pocket instead of $500. Over several years without a claim, you save money with the higher deductible. If you have one accident, you lose that savings immediately.

Most people choose a deductible they can actually afford to pay if they need to. If you have $2,000 in savings and no emergency fund, a $1,000 deductible is risky because one accident could wipe out your savings. A $250 or $500 deductible is safer even if the monthly payment is higher. If you have $10,000 or more in savings, a $1,000 deductible is usually the better financial choice.

Coverage limits for uninsured and underinsured drivers

Uninsured motorist coverage pays for your medical bills and vehicle damage if you are hit by a driver who has no insurance. Underinsured motorist coverage pays the difference if the other driver's insurance is not enough to cover your damages. These are optional in most states, but they protect you from situations you cannot control.

If you are hit by an uninsured driver and you do not have uninsured motorist coverage, you have to sue the other driver personally to recover damages — and if they have no insurance, they likely have no money either. Most insurance agents recommend carrying uninsured motorist coverage at the same limit as your liability coverage, or at least $100,000 per person.

How your age, driving record, and location affect the amount 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, carrying higher liability limits is especially important because you are more likely to need them. The extra cost is usually modest compared to the risk.

Your location also matters. Urban areas have more accidents and higher medical costs than rural areas. If you live in a city with heavy traffic, higher liability limits make sense. If you live in a rural area with light traffic, the state minimum is less likely to be exhausted, though it is still not ideal.

Your income and assets also factor in. If you have significant savings, investments, or own a home, you have more to lose in a lawsuit. Higher liability limits and possibly an umbrella policy (which adds another layer of protection above your car insurance) become more important. If you have minimal assets, the state minimum is less catastrophic, though still not recommended.

When to increase or decrease your coverage

Review your coverage limits every year or whenever your situation changes. If you buy a new car, financed or not, make sure your collision and comprehensive coverage reflects its current value. If you pay off a car loan, you can drop collision and comprehensive if you choose, though many people keep them.

If you move to a different state, check that state's minimum requirements and adjust your policy accordingly. If your income or assets increase significantly, consider raising your liability limits. If you retire and stop driving regularly, some insurers offer low-mileage discounts that can offset the cost of carrying higher limits.

If you have a teenage driver added to your policy, that driver's risk profile may warrant higher limits for the whole household. Conversely, if a high-risk driver moves out, you may be able to lower limits slightly, though this is rarely a significant savings.

Frequently Asked Questions

What happens if I cause an accident and my insurance is not enough?

You become personally liable for the difference. The other party can sue you, and if they win, the court can garnish your wages or place a lien on your home or other assets. This is why carrying more than the state minimum is important — it is cheaper to pay higher premiums now than to face a judgment later.

Can I lower my premium by choosing a higher deductible?

Yes. Raising your deductible from $500 to $1,000 typically lowers your premium by 10 to 30 percent, depending on your insurer and location. The trade-off is that you pay more out of pocket if you file a claim. Choose a deductible you can actually afford to pay.

Do I need collision and comprehensive if my car is paid off?

No, they are optional once you own the car outright. However, if you cannot afford to replace or repair your car out of pocket, skipping these coverages is risky. Most people keep collision and comprehensive until the car's value drops below what they can comfortably pay to replace.

Is umbrella insurance worth the cost?

Umbrella insurance adds $1 million or more in liability coverage above your car and home insurance for $150 to $300 per year. It is worth considering if you have significant assets, a high income, or own a home. It is less necessary if you have minimal assets to protect.

Should I carry the same liability limits in every state?

You should carry at least your home state's minimum in every state. However, many people keep the same higher limits (such as $100,000 per person) across all states for simplicity and consistent protection. Your insurer can tell you what limits are required in any state you plan to drive in.