You are at the rental counter, tired from the flight, and the agent asks if you want to add their coverage for $30 a day. Whether you actually need it depends on something most people have never checked: what your own auto policy already does when you drive a rental.
Your own coverage usually follows you
For most personal auto policies, the coverage you already pay for extends to a rental car you drive for personal use. If you carry comprehensive and collision, that protection generally applies to the rental, minus your usual deductible. Your liability coverage usually follows you too. So in many cases you are already covered, and paying at the counter means paying twice.
Where it gets thinner
There are real gaps worth knowing. Your policy may not cover **loss of use**, the fee the rental company charges for the days a damaged car sits in their shop. It also typically will not extend to rentals used for business, to moving trucks, or to trips outside the country. And if you only carry liability, your own policy will not pay to fix the rental itself.
The credit card angle
Many credit cards include rental coverage when you pay with that card, often as secondary coverage that kicks in after your own insurance. Some premium cards offer primary coverage. A two-minute call to your card issuer before the trip is worth it, because between your auto policy and your card, you may already be fully covered without spending a dime at the counter.
Check your policy before the trip, not at the counter
The rental desk is the worst place to figure this out, because that is exactly where they are selling. MyPolicyShield reads your auto policy and tells you whether you are covered in a rental, what your deductible would be, and whether loss of use is included.
Check it before the trip, and walk up to that counter already knowing the answer.
Find out what your policy actually covers
Upload your renters insurance PDF and ask it plain-English questions. Free to start, no credit card required.
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