How does American Express rental car insurance work?

[LeMalia]

American Express rental car insurance is a secondary benefit that covers damage or theft of your rental vehicle, but it requires you to decline the rental company’s Collision Damage Waiver (CDW/LDW) and pay with an eligible card. For a premium, you can upgrade to a primary coverage plan.

The core mechanism acts as secondary coverage, meaning it only pays costs not covered by your personal auto insurance after its limits are exhausted. You must charge the entire rental to an eligible American Express card and formally decline the rental company’s loss damage waiver at the counter. Coverage is typically up to $75,000 for the vehicle itself, but it explicitly excludes liability for injury to others or damage to other vehicles and property.

A significant enhancement is the Premium Car Rental Protection plan. For a flat fee per rental period (typically $19.95 to $24.95, depending on the state), this optional upgrade converts your coverage to primary insurance with a limit of up to $100,000. This means it pays for covered damages first, without involving your personal auto policy, which can help avoid potential premium increases.

Key requirements and exclusions are critical to understand. Coverage is not available for rentals in Australia, Italy, and New Zealand. It also does not cover certain vehicle types like expensive exotic cars, vans with open cargo beds, or motorcycles. Coverage terminates if you extend the rental without paying the additional period on your Amex card.

Aspect	Standard Benefit (Secondary)	Premium Protection (Primary, Optional)
Coverage Limit	Up to $75,000 for the rental vehicle	Up to $100,000 for the rental vehicle
Coverage Type	Secondary (pays after other insurance)	Primary (pays first, before personal insurance)
Cost	Included as a card benefit	Flat fee per rental period ($19.95-$24.95)
Liability Coverage	Not Included (for injuries or damage to others)	Not Included (for injuries or damage to others)
Key Requirement	Decline rental company’s CDW/LDW	Decline rental company’s CDW/LDW

Filing a claim requires specific documentation. In the event of damage or theft, you must contact American Express’s benefit administrator at 1-800-338-1670 or file online. You will need to submit the rental agreement, a copy of your personal auto insurance declaration page, repair estimates or invoices, and a police report if theft or vandalism occurred. The process is straightforward but hinges on providing complete paperwork.

[VanHarmony]

As someone who rents cars for work every other month, I always use my Amex Platinum and pay the extra $24.95 for their primary insurance. It’s a no-brainer for business travel.

My company’s expense policy requires me to decline the expensive rental company insurance. With Amex’s premium plan, I know I’m covered first if a shopping cart dings the door in a parking lot. I don’t have to file with my personal insurer back home, which keeps my own rates from going up.

I just make sure to book and pay for the entire thing on the Amex. At the counter, I say “no” to the CDW. I keep all my paperwork. Knowing I’ve got that $100,000 in primary coverage lets me focus on my meetings, not the rental car.

[Carrie]

Let me break down how I think about this as a regular cardholder. The free benefit is decent backup, but it’s secondary. That means if you have your own car insurance, you have to go through them first for any claim. Only after your personal policy pays its part will the Amex coverage kick in for the rest, up to their limit.

That’s why I look at the premium option. For about twenty bucks per rental trip—not per day—it switches to primary coverage. For me, that peace of mind is worth the fee. I don’t want my personal insurance getting involved for a rental car fender bender on vacation.

The big thing everyone misses is what it doesn’t cover. It doesn’t cover you if you hurt someone or damage another car. That’s liability. For that, you either rely on your personal auto policy or buy the rental company’s liability product. Also, read the fine print on excluded countries and vehicle types. No fancy sports cars.

[KadenLynn]

I learned how this works the hard way. Last year, I got a long scratch on a rental sedan. I had used my Amex Gold and refused the CDW, thinking I was fully covered.

I called Amex to start a claim. They were helpful but explained the secondary coverage process. I had to file with my own auto insurance company first. My insurer paid for the repair minus my deductible. Then, I submitted that paperwork to Amex. They reimbursed me for my deductible amount. The process worked, but it took weeks and involved two companies.

Now, for longer trips or when I’m in a busy city, I just add the Premium Protection at booking. The flat fee is clear, and knowing any claim is just between me and Amex is much simpler. It’s more streamlined based on my actual experience.

[Ralph]

From a risk management perspective, the Amex benefit effectively addresses the physical damage portion of rental risk but leaves liability exposure unaddressed. The structure creates a clear choice based on your existing insurance profile.

If you carry robust personal auto insurance with low deductibles, the standard secondary benefit provides a valuable safety net at no extra cost, mainly for deductible reimbursement. However, if you lack personal auto insurance (e.g., you don’t own a car), the secondary coverage is functionally useless, as there is no primary policy to act after. In this case, the Premium Protection plan becomes essential as it acts as your primary damage coverage.

The economic logic for the upgrade is strongest for those who wish to shield their personal insurance from claims to avoid premium increases. The flat-fee model is also financially predictable compared to the rental company’s daily CDW rates, which can double the cost of a short rental. Always verify your card’s specific terms, as benefits and premium plan costs can vary between different American Express products.