Why a Higher Deductible Barely Lowers Your Car Insurance

Sarah Mitchell

Sarah Mitchell writes about insurance basics and consumer comparisons. Insurance enthusiast 12 years. Texas-based.

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Quick answer: A higher deductible usually lowers your premium, but often only a little, because it only affects collision and comprehensive coverage. Liability, often the biggest part of the bill, has no deductible. Get two quotes and divide the extra deductible by the yearly savings to see how many claim-free years it takes to break even.↗ Share on X

A higher deductible usually does lower your car insurance premium, but often by much less than people expect. The reason is simple: your deductible only applies to collision and comprehensive coverage, the parts that pay to fix your own car. The biggest piece of most bills, liability coverage, has no deductible at all, so raising your deductible does nothing to it. Before you switch from $500 to $1,000, ask for both quotes and do the quick break-even math in this article.

What is a deductible, in plain words?

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Your deductible is the amount you pay out of your own pocket on a claim before the insurance company pays the rest.

Example: your car needs $3,000 of repairs after a crash that was your fault. Your collision deductible is $500. You pay $500. The insurer pays $2,500.

Your premium is different. The premium is the price of the policy itself: the amount you pay every month or every six months, whether you file a claim or not.

So the trade-off works like this:

• Higher deductible: you agree to pay more when something happens, and the insurer usually charges you a lower premium.
• Lower deductible: you pay less when something happens, and the premium is usually higher.

Why does raising the deductible change my premium so little?

This is the part most people miss. A typical auto policy is a bundle of separate coverages. Only some of them have a deductible.

When you raise your deductible, the insurer only lowers the price of the last two lines. If liability is a large share of your bill, which is common for young drivers, drivers with tickets, or people in busy cities, the total savings can look tiny.

That is why someone can raise the deductible from $500 to $1,000 and see the bill drop by only a small amount.

When does a higher deductible save very little or nothing?

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Raising your deductible is a weak move in these situations:

1. You only carry liability coverage. If your car is older and you dropped collision and comprehensive, you have no deductible to raise. Your premium will not change.

2. Your car is worth little. If the car is worth $3,000, a $1,000 deductible means the insurer would pay at most about $2,000 on a total loss. The coverage itself may not be worth much.

3. The price drop is small. If the yearly savings are small, it takes many claim-free years to make up for the extra money you would pay on one claim.

4. You do not have the cash. A deductible is useless as a savings tool if you cannot pay it when the car breaks. Some people end up driving a damaged car or using a credit card at high interest.

5. Your lender sets a limit. If the car is financed or leased, the loan contract often caps your deductible. Check the paperwork before you change anything.

How do I know if a higher deductible is worth it? (Break-even math)

You do not need a calculator app. Do this with the real numbers from your own quotes:

1. Ask your insurer or agent for two quotes: one with your current deductible and one with the higher deductible.

2. Write down the yearly premium for each.

3. Subtract to find the yearly savings.

4. Subtract the two deductibles to find the extra risk, the extra money you would pay on one claim.

5. Divide the extra risk by the yearly savings. The answer is how many claim-free years you need to come out ahead.

Here is an example with made-up round numbers, only to show how the math works. Your quotes will be different.

In this example, you would need about four years without a collision or comprehensive claim before the higher deductible pays off. If you file a claim in year two, you lose money on the deal.

A simple rule of thumb: if the break-even point is more than three or four years, the higher deductible is usually not a great trade for most families. If it is one or two years, it can make sense, as long as you can pay the deductible.

Are collision and comprehensive deductibles the same thing?

No. They are set separately, and you can choose a different amount for each one.

Many drivers pick a lower deductible for comprehensive and a higher one for collision. Comprehensive covers things you cannot control, like hail, theft, or a cracked windshield, and the comprehensive part of the premium is often cheaper to begin with. In some states, insurers also offer full glass coverage with no deductible.

Ask your agent to quote these combinations so you can compare:

• $500 collision / $500 comprehensive
• $1,000 collision / $500 comprehensive
• $1,000 collision / $1,000 comprehensive

What actually lowers my premium more than the deductible?

If your goal is a smaller bill, these steps often matter as much as the deductible, or more:

• Shop around every year or two. Prices for the same driver and car can be very different from one company to another. Get at least three quotes with the same coverage limits so the comparison is fair.
• Ask about discounts. Common ones include bundling home or renters insurance, paying in full, automatic payments, paperless billing, good student, defensive driving course, and low mileage.
• Consider a usage-based program. Some insurers track your driving with an app or a plug-in device and may lower the price for safe driving. Read how they use the data before you sign up.
• Review your coverage on older cars. When the car's value drops, paying for collision may no longer make sense.
• Improve your record over time. Tickets and at-fault accidents usually raise rates for several years. A clean record helps at renewal.

Be careful with one thing: do not cut your liability limits just to save money. Liability protects your savings and income if you seriously hurt someone. State minimums are often low compared to the cost of a bad accident.

Questions to ask your agent before you change anything

Write these down and ask them on the phone or by email:

1. "How much will my premium change if I raise my collision deductible to $1,000? And comprehensive?"

2. "What part of my premium is liability, and what part is collision and comprehensive?"

3. "Does my lender or leasing company have a maximum deductible?"

4. "Do you offer a separate glass deductible?"

5. "Which discounts am I not getting yet?"

Insurance rules and prices change by state and by company. This article is general information, not financial or legal advice. A licensed insurance agent or broker in your state can look at your actual policy and tell you what applies to you.

Your next step

Pull up your current policy, called the declarations page, and find two things: your collision and comprehensive deductibles, and the price of each coverage line. Then call your insurer and ask for a second quote with a higher deductible. Run the break-even math above with the real numbers. If it takes more than about four years to come out ahead, keep your deductible and spend that phone call asking about discounts instead.

FAQ

Does raising my deductible always lower my premium?

Usually yes, but only the collision and comprehensive part of the price goes down. If you only carry liability coverage, there is no deductible to raise and your premium will not change.

How do I know if a $1,000 deductible is worth it?

Ask for quotes with both deductibles, find the yearly savings, and divide the extra deductible amount by those savings. If it takes more than three or four claim-free years to break even, it is usually not a great trade.

Can I have different deductibles for collision and comprehensive?

Yes. They are set separately. Many drivers choose a higher collision deductible and a lower comprehensive deductible.

Who should I talk to before changing my deductible?

A licensed insurance agent or broker in your state, and your lender if the car is financed or leased, since loan contracts often cap the deductible.

Educational content, not personalized financial advice. Sources cited where applicable.