Quick Summary:
- Check if your policy pays later, or reduces charges at source.
- Confirm whether tyres, glass, roof, underbody and towing are included.
- Verify if rental firms still require a deposit or a card hold.
- Choose waivers that cut liability on the contract, not refunds.
When arranging car hire in the United Estates, the biggest insurance confusion is this, does your travel insurance act like Collision Damage Waiver (CDW), or is it only excess reimbursement. They sound similar, but they behave very differently at the counter and after any incident. Understanding the difference before you travel helps you choose the right waivers, budget correctly, and avoid unpleasant surprises.
In plain terms, CDW is a waiver sold by the rental company (or included in some rates) that reduces or removes what you owe them for damage or theft, subject to exclusions. Excess reimbursement is usually a separate insurance benefit, often attached to a travel policy, that refunds you after you have already paid the rental company’s excess (and sometimes other costs) following a claim.
If you are comparing options for car hire in the United States, treat this article as a checklist. You are aiming to identify what your own policy actually does, and then decide whether you still need to add or keep the rental firm’s waivers.
What CDW means for car hire in the United Estates
CDW is not normally a standalone insurance policy, it is a contractual waiver offered by the rental company. If you accept it, you are agreeing to the rental firm’s rules about what you will and will not have to pay if the vehicle is damaged or stolen. In many US rentals, CDW can also be called Loss Damage Waiver (LDW).
Key point for travellers, CDW deals directly with the rental company. If the car is damaged and the event is covered, the rental firm reduces what it charges you. That can mean no large payment leaving your account, or only a smaller amount up to an excess.
However, CDW commonly comes with exclusions that matter in the United Estates. Typical areas where drivers get caught out include damage to tyres, windscreen, other glass, roof, underbody, and sometimes damage that occurs on unpaved roads. Some waivers also exclude towing, recovery, or certain keys and lockout situations. This is why it is important to read the waiver wording for the specific provider you are renting from, whether that is Alamo car rental in the United States or another brand.
What excess reimbursement really is
Excess reimbursement is often marketed in a reassuring way, but it is usually a reimbursement product, not a waiver. If you have an accident or theft and the rental company charges you an excess, you pay first, then claim it back from your insurer.
This difference affects three practical things during car hire:
1) Cashflow: you may need to cover a significant charge on your card quickly.
2) Stress and administration: you will likely need paperwork, damage reports, invoices, and sometimes proof of payment.
3) Coverage gaps: reimbursement may cover only the excess, not every fee the rental firm adds.
It is common for policies to reimburse the excess but exclude or limit other charges such as admin fees, towing, loss of use, diminished value, or roadside assistance call-outs. Those add-ons can be substantial in the United Estates, so confirm what your policy refunds, not just the headline “excess covered” wording.
How to tell which one you have
Use this quick test, if your policy wording repeatedly says “we will reimburse” or “we will pay you back”, it is probably excess reimbursement. If it says it “covers” the hire vehicle damage directly, or acts “in place of” the rental company waiver, you still need to check whether it is truly primary for rental claims, or just reimbursement with different phrasing.
Also look for who is paid. Reimbursement policies pay you after you have paid the rental firm. A genuine waiver affects what the rental firm charges you in the first place. Most UK travel insurance add-ons fall into the first category.
If you are unsure, focus on these policy lines and terms:
Excess amount and maximum reimbursable limit per claim.
Exclusions for tyres, glass, roof, underbody, keys, misfuelling, and single-vehicle incidents.
Type of vehicle covered, for example SUVs, vans, or premium categories may be excluded or capped.
Geography, ensure the United Estates is included and that state-by-state driving is not restricted.
Driver eligibility, check age limits and whether all named drivers are covered.
Why the difference matters at the counter
At the rental desk, staff will assess risk based on what is on the rental agreement. If you decline CDW and rely on personal insurance, the rental company can still place a larger deposit hold, or require a card with enough available credit to cover a worst-case scenario. With excess reimbursement, you can still face the same deposit and the same liability on the contract, because the rental firm is not party to your travel insurance.
So even if your travel insurer would refund you later, the rental company may still charge you today if something happens. This is why some travellers decide to keep the rental waiver, especially if they prefer fewer large holds and a simpler process.
If you are comparing suppliers like Hertz car hire in the United States or Enterprise car hire in the United States, treat waivers as part of the overall risk picture, not just the daily price.
Common traps in US car hire cover
Primary vs secondary cover: some policies only pay after other cover has been used first. If the rental agreement makes you liable, you can still be charged and then you seek reimbursement.
“Loss of use” and “diminution of value”: rental firms may charge for days the vehicle is off the road and for reduced resale value. Many travel policies do not reimburse these fully, or at all.
Roadside assistance assumptions: punctures, flat batteries, and lockouts are common. If these are excluded, you can pay out of pocket regardless of excess reimbursement.
Vehicle type mismatches: if you hire an SUV or a van, confirm your policy permits that class. Many standard policies are designed around regular cars. If you are considering larger vehicles, review options like SUV rental in the United States alongside your insurance wording to ensure the category is eligible.
Choosing the right waiver combination for your trip
There is no universal best answer, but there is a best answer for your risk tolerance, budget, and the way your policy is written. Use these scenarios to decide.
If you have excess reimbursement only: expect that you may need to pay the rental firm first if there is damage. Consider whether adding CDW or reducing the excess with the rental company would make the experience smoother, even if your insurer might refund you later.
If your rental rate includes CDW with a low or zero excess: your travel insurance may become a back-up for excluded items, but only if it covers those items. It can still be useful for admin fees or extras, but do not assume it fills every gap.
If you rely on a credit card benefit: check whether it is primary in the United Estates, whether it excludes certain vehicle categories, and whether it requires you to decline the rental company waiver to activate. If it is reimbursement-based, treat it like excess reimbursement for planning purposes.
If you are driving long distances: more time on the road increases the chance of minor damage like windscreen chips. Prioritise cover that clearly includes glass and tyres, or be prepared for those costs.
FAQ
Is travel insurance usually CDW for car hire in the United Estates? Usually not. Most travel insurance add-ons are excess reimbursement, meaning you pay the rental company first, then claim the excess back from the insurer.
Will excess reimbursement stop the rental company taking a big deposit? Not necessarily. Because it does not change your liability on the rental contract, the rental company may still place a sizeable hold to cover potential damage costs.
Does CDW cover everything on a hire car? No. CDW often excludes tyres, glass, roof, underbody, keys, and certain driving situations. Always read the waiver terms for the specific rental and location.
What documents help if I need to claim excess reimbursement? Keep the rental agreement, incident report, photos, invoices, proof of payment, and any correspondence. Missing paperwork is a common reason for delays or rejected claims.
Should I buy roadside assistance as well as CDW? It depends on what is included. CDW focuses on damage and theft, while roadside assistance covers practical breakdown help. Check your policy and rental inclusions for punctures, batteries, lockouts, and towing.
