The short answer: check your existing coverage first
Most people already have some protection when they rent a car — either through their personal auto insurance, a credit card benefit, or an employer policy. Buying the rental company's insurance makes sense only if you have no other coverage, or if your existing coverage has gaps that matter for your trip. The rental company's coverage is expensive per day and often duplicates what you already own.
Before you decide at the counter, you need to know three things: what your personal auto insurance covers when you rent, what your credit card covers, and what gaps exist between them. This takes 10 minutes on the phone with your insurer and a look at your credit card's benefits guide — both free — and it will save you $15 to $30 per day.
Key Takeaways
- Your personal auto insurance often covers rental cars at no extra cost, so call your insurer before renting to confirm what is and is not covered.
- Premium credit cards typically cover collision and theft damage to rental cars, but only if you decline the rental company's coverage and charge the full rental to that card.
- The rental company's insurance costs $15 to $40 per day and covers damage you cause, but it duplicates coverage most people already have.
- Liability coverage — protection if you injure someone or damage their property — is the one gap many renters have, and it is the hardest to buy separately.
- If you have no personal auto insurance and no credit card coverage, the rental company's basic package is your only real option.
What your personal auto insurance covers
Most personal auto insurance policies cover rental cars automatically, with the same deductible as your own vehicle. This includes collision (damage from an accident), comprehensive (theft, weather, vandalism), and liability (injury or property damage you cause). The coverage applies whether you rent in your home state or another country, though some policies exclude certain countries — check yours.
Call your insurer and ask them to confirm in writing what is covered on a rental car, what the deductible is, and whether there are any exclusions. Ask specifically about liability limits, because many policies have lower limits than you might think, and rental companies often require higher limits. Write down the policy number and the name of the person you spoke to, so you have proof if a dispute arises later.
If you have no personal auto insurance — because you do not own a car, or your policy lapsed — you have no automatic coverage and will need to buy it from the rental company or rely entirely on a credit card.
How credit card rental coverage works
Many premium credit cards (typically those with annual fees of $95 or more) include rental car damage coverage. This coverage pays for collision and comprehensive damage to the rental car, usually with no deductible. It does not cover liability — injury or property damage you cause to others — and it does not cover personal belongings left in the car.
The coverage only works if you charge the entire rental to that card and if you decline the rental company's damage waiver at the counter. If you accept the rental company's coverage, your credit card coverage is void. Read your card's benefits guide or call the card issuer to confirm the exact coverage limits, any exclusions (some cards exclude luxury or commercial vehicles), and whether the coverage applies outside the United States.
If you have multiple cards with rental coverage, only one will pay — typically the primary card you used to book the rental. The others will not cover the gap.
What the rental company's insurance actually covers
Rental companies offer several coverage options, usually bundled into packages with names like "Loss Damage Waiver" (LDW) or "Collision Damage Waiver" (CDW). These cover damage to the rental car from collision, theft, or vandalism. They do not cover liability, personal belongings, or damage from off-road driving or racing.
The cost ranges from $15 to $40 per day depending on the car type and location. Some rental companies charge a flat fee per rental instead of a daily rate. If you cause an accident, you pay nothing out of pocket for the car damage — the rental company absorbs it. If you decline this coverage and cause damage, you pay the full repair cost, which can be thousands of dollars.
Liability coverage is sold separately and costs $10 to $20 per day. It covers injury or property damage you cause to others. Many rental companies set liability limits lower than what your personal insurance provides, so check whether you need to buy their coverage to meet the legal minimum in your rental state.
The liability gap most renters miss
Liability is the coverage that protects you if you cause an accident and injure someone or damage their car or property. Your personal auto insurance covers this. Your credit card does not. The rental company's liability coverage is optional and costs extra.
If you have personal auto insurance, your liability coverage applies to the rental car automatically. If you do not have personal insurance, you must buy liability coverage from the rental company — it is not included in their damage waiver packages. Many renters skip this thinking the damage waiver is enough, then discover too late that they have no protection if they cause injury to another person.
Check your personal policy's liability limits. Most states require a minimum of $25,000 per person and $50,000 per accident, but a serious injury can exceed these limits. If your policy limits are low, you may want to buy the rental company's liability coverage as a backup, or raise your limits before you rent.
When to buy the rental company's coverage
Buy the rental company's damage waiver if you have no personal auto insurance and no credit card coverage. This is your only protection against paying thousands of dollars for damage to the rental car.
Buy liability coverage if you have no personal auto insurance. This is not optional — you need it by law and you need it to protect your assets if you cause a serious accident.
Buy the damage waiver if your personal auto insurance has a very high deductible (say, $2,500 or more) and you are uncomfortable paying that amount out of pocket if you cause damage. The daily cost of the rental company's coverage may be less than your deductible over a week-long trip.
Do not buy the damage waiver if your personal insurance or credit card already covers it. You will pay twice for the same protection.
How to decide at the rental counter
Before you arrive, gather three pieces of information: a written confirmation from your personal insurer about what is covered on a rental car, your credit card's rental coverage details, and the liability limits on your personal policy. Take a photo of these or write them down.
At the counter, the agent will ask whether you want to decline or accept their damage waiver. If you have personal insurance or credit card coverage, say you decline. If you have neither, accept the damage waiver and ask about liability coverage. Do not let the agent pressure you into coverage you do not need — they are trained to sell it, and their job depends on it.
If you are unsure about your coverage, ask the rental company to hold the reservation while you call your insurer. It takes 10 minutes and can save you hundreds of dollars. Do not guess.
Frequently Asked Questions
Does my credit card cover rental cars outside the United States?
Some do, some do not. Check your card's benefits guide or call the issuer before you book an international rental. Many premium cards cover rentals in Canada and Europe but exclude other regions. If your card does not cover international rentals, you will need to buy coverage from the rental company or rely on your personal auto insurance if it applies abroad.
What happens if I cause an accident and I declined the rental company's coverage?
You file a claim with your personal auto insurance or credit card issuer, whichever is covering the rental. You pay your deductible (usually $500 to $1,000), and your insurer pays the rest. Your rates may increase after the claim. If you have no coverage, you pay the full repair cost out of pocket, which can be $5,000 to $15,000 or more.
Can I buy rental car insurance after I pick up the car?
No. You must decide at the counter before you leave the lot. Once you have signed the rental agreement and declined coverage, the rental company will not sell it to you later. If you change your mind after leaving, you have no protection.
Does the rental company's coverage include damage from hitting a pothole or curb?
Usually yes, if you report it when ready. Collision damage from hitting a pothole or scraping a curb is covered under the damage waiver. Report it to the rental company before you return the car so they can document it. If you do not report it and they discover it during the return inspection, they may deny the claim and charge you for repairs.
What if my personal insurance has lapsed?
You have no automatic coverage on a rental car. You must buy the rental company's damage waiver and liability coverage. Do not rent a car without coverage — the financial risk is too high. If you need to rent regularly, it is cheaper to restore your personal auto insurance than to pay the rental company's daily rates.