By the Five Star Insurance Reviews editorial team · Updated October 13, 2026

How Much Car Insurance Do You Need?

How much car insurance you need depends on your assets, your car and your state. Here is how to choose limits and deductibles that fit without overpaying.

How much car insurance do you need? The short answer

There is no single number that works for everyone. How much car insurance you need depends on what you could lose in a serious accident, what your car is worth, whether you have a loan and what your state requires.

A useful way to think about it is in three layers: the legal minimum, the protection that fits your finances, and extras that suit your life. Most drivers should aim for the second layer.

Start with your state’s minimum requirements

Every state sets minimum liability limits, and some require extras such as personal injury protection or uninsured motorist coverage. How much car insurance you must carry by law is the floor, not the goal.

Our table of car insurance requirements by state shows the minimums for Kentucky, its neighbors and the largest states. Always confirm current rules with your state insurance department, because laws change.

Why the state minimum may not be enough

Minimum limits are often low compared with the cost of a serious crash. Hospital bills, lost wages and vehicle damage can exceed them quickly. When damages go beyond your limits, you can be personally responsible for the difference.

That is why many drivers ask how much car insurance they need beyond the minimum. If you own a home, have savings or earn a steady income, higher liability limits protect assets that a lawsuit could reach.

How much car insurance do you need for liability?

Liability limits are written as three numbers, such as 100/300/100. That means $100,000 per person and $300,000 per accident for bodily injury, and $100,000 for property damage.

A common rule of thumb is to carry liability limits that at least match what you could lose, including savings, home equity and other assets. Our liability coverage calculator turns that idea into a suggested range, and our liability coverage guide explains each part.

Higher limits often add a modest amount to the premium. Ask for quotes at several limits to see the difference for yourself.

How much car insurance do you need for your own car?

Liability pays for damage you cause to others. To protect your own vehicle you need collision and comprehensive coverage, often called full coverage.

If you finance or lease, your lender will require both. If you own the car outright, weigh the yearly cost against the car’s value. Our collision and comprehensive calculator helps with that comparison, and our full coverage car insurance guide explains what the coverage includes.

Medical, uninsured motorist and other coverages

• Personal injury protection or medical payments coverage helps with medical bills for you and your passengers. Some states require it.
• Uninsured and underinsured motorist coverage protects you when the other driver has no insurance or too little.
• Rental reimbursement and roadside assistance are optional add-ons that can be inexpensive.

Requirements differ by state, so check what applies where you live. Our uninsured motorist coverage guide explains how that protection works.

Choosing deductibles

Your deductible is what you pay before collision or comprehensive coverage begins to pay. A higher deductible lowers your premium but raises your cost per claim.

Pick an amount you could pay from savings tomorrow. Our deductible calculator shows the break-even point for a higher deductible.

How much car insurance do you need in common situations?

• You rent and drive an older paid-off car: state minimum liability may be your starting point, but consider higher limits if you have savings, and weigh whether collision is worth the cost.
• You own a home and have savings: higher liability limits protect those assets, and an umbrella policy may be worth asking about.
• You finance a new car: expect to carry collision and comprehensive, and consider gap coverage.
• You have a teen driver: more drivers and less experience raise risk, so higher liability limits are worth pricing.
• You drive for work or carry passengers often: ask about coverage that matches how you use the car.

These are starting points, not recommendations. A licensed agent can tailor coverage to your situation.

When your life changes, review how much car insurance you need

Revisit your coverage after a move, a new car, a new driver in the household, a marriage, buying a home or a big change in savings. Each can change how much car insurance makes sense.

A yearly review at renewal is a good habit. Prices and discounts change, and a quick comparison can show whether you are still getting a fair deal.

How to compare quotes at the same coverage levels

• Decide your liability limits, using the minimum as the floor.
• Choose deductibles for collision and comprehensive.
• Pick the add-ons you want, such as rental reimbursement.
• Request quotes with identical limits from at least three carriers.
• Compare the discounts applied, not only the price.

Our carrier reviews and head-to-head comparisons can help you shortlist carriers before you request quotes.

Common mistakes when deciding how much car insurance to buy

• Buying the state minimum without checking whether it protects your assets.
• Choosing a deductible you could not pay in an emergency.
• Comparing quotes with different limits.
• Never reviewing coverage after life changes.
• Assuming the cheapest quote is the best value.

A quick checklist before you buy

Before you buy, confirm your liability limits, deductibles, add-ons and discounts. The National Association of Insurance Commissioners offers consumer resources, and the Insurance Information Institute explains common coverage terms in plain language. Your state insurance department can answer questions about local rules.

FAQs

General information, not insurance advice. Coverage and rules vary by state and policy.

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