What is collision damage waiver?

Collision damage waivers keep you covered in an accident. But it doesn’t mean skipping out on car rental excess insurance.

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Key takeaways

  • Collision damage waiver (CDW) covers the cost of damage for loss or damage to a rental car you use.
  • While you don't pay for the damage, you may be charged an excess which can be as high as $8,000!
  • Car rental excess insurance is generally included with comprehensive travel insurance policies, but some insurers list it as an optional extra.

What is a collision damage waiver?

A collision damage waiver (CDW) is not insurance, despite the name. It's an agreement where the rental company waives its right to charge you for the full cost of damage to the hire car, though you usually still have to pay an excess if something goes wrong. That excess can run to several thousand dollars, which is where rental car excess insurance comes in.

In Australia, a CDW is automatically included in the price of most car rentals. In some other countries you have to pay extra for it (more on that below).

Finder survey: Do Australians understand rental car excess cover?

Response
Yes72%
Somewhat16%
No12%
Source: Finder survey by Pure Profile of 1112 Australians, December 2023

What does it cover?

A collision damage waiver generally covers the cost of damage to the rental vehicle above the excess amount. Depending on the rental company and country, it may also cover damage to third party property, but this varies, so check your rental agreement.

What doesn't it include?

Common collision damage waiver exclusions include:

  • Underbody and overhead damage
  • Tyres, windscreen, headlight and wheel damage
  • Reckless or deliberate damage
  • Accidents involving a single vehicle
  • Breaches of the rental agreement
  • Driving in prohibited or restricted areas
  • Unauthorised driver
  • Water damage
  • Using the wrong fuel type

So why do I need rental car excess insurance?

Good question. It's because even though a collision damage waiver will directly cover the cost of any loss or damage, you may still be subject to paying an eye-watering excess. Rental car excess insurance can give you that added protection. Essentially, even if you have CDW, the rental company will still charge you an excess amount if the car suffers loss or damage under your care.

Let's say you crash your rental car while on holiday and it's a write off. The car would cost $50,000 to replace, but thankfully, your CDW means you're not liable to pay that amount. However, the excess amount in your rental agreement is $5,000, which you do have to pay (assuming you don't have rental excess insurance).

If you had a rental car excess insurance policy, you could avoid this cost completely.

Car rental companies usually also offer rental car excess insurance but it normally costs a lot. Luckily, you can purchase rental car excess insurance in Australia before you head overseas, with cover starting from as little as $2.74 per day.

Is collision damage waiver the same as excess?

No, for most car hire companies in Australia, a level of standard excess known as collision damage waiver or loss damage waiver (LDW) is already included in the price of most rentals. A collision damage waiver or loss damage waiver protects the company from being severely out of pocket if the car needs to be written off and the customer has no way to compensate for the loss.

Collision damage waivers or loss damage waivers minimises this risk, but you as the customer will still be charged an excess if an accident does occur — usually between $3,000 and $8,000.

Where can I get rental car excess insurance?

You can purchase rental car excess insurance by adding it onto your travel insurance policy. Many travel insurers automatically include rental car excess as part of their domestic and international comprehensive travel insurance policies or you will need to purchase it as an optional extra.

Depending on the insurer and policy details, you could get excess coverage for up to $10,000.

But before you sign up for the first policy you see that includes rental car excess coverage, it’s important to weigh up the policy’s overall value and inclusions. Don’t forget to shop around either, as doing your research and comparing policies could also save you a couple of bucks in the long run.

Don't some credit cards come with rental car excess insurance?

Yes, they do.

Many credit cards offer credit card car rental excess insurance as part of the complimentary travel insurance offerings. This applies to car rental excesses in Australia and overseas.

You can find this perk across several major credit card brands, including American Express, any of the Big Four banks, Qantas, Citi, BankSA and more.

There are some limits that apply with complimentary car rental excess insurance. Each brand has their own set of requirements to activate cover and meet the criteria of the type of accidents it covers.

Exclusions and limits also apply to this kind of insurance, as credit card rental car excess policies often exclude damage to tyres, windscreens and the underbody of the car and will only offer coverage up to a certain limit.

Given the wide range of coverage limits across credit card issuers, it's highly recommended to review your card's insurance policy document before activating cover.

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Customers using their complimentary rental car excess insurance may still be required to pay excess, ranging from $100 to $500. While this is a significant fee, it's better than having to pay thousands of dollars to a rental car company.

What's the difference between collision damage waivers and loss damage waivers?

Most car rental companies consider collision damage waiver and loss damage waiver to be the same thing. In most countries, they come packaged together. However, you often need to purchase them separately in the US and Canada.

For the rental companies that separately define CDW and LDW, CDW provides cover if there's damage to your rental car as a result of an accident while LDW is a combination of CDW and theft protection. That means you'll also be covered for car replacement if your rental car is stolen. CDW also usually excludes windscreen, tyres, interior, undercarriage, roof and side mirror repair. If any of these parts are damaged, you'll likely have to pay the full cost of repairs.

Collision damage waivers/loss damage waivers in other countries: how do they stack up?

While collision damage waiver is included when you use a rental car in Australia, there are several popular holiday destinations where you'll have to pay extra if you want it.

  • US. Some rental companies in the US will not include collision damage waiver in their initial fees. It's common for you to be offered CDW at the time of rental for an additional daily charge.
  • New Zealand. You will probably find collision damage waiver as an optional add-on with many car rental companies in New Zealand. It can often cost you an additional $20 per day on top of your initial car rental fee.
  • UK & Ireland. The majority of UK and Irish car rental companies should include collision or loss damage waiver in their total rental fee.

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Gary Ross Hunter has over 6 years of expertise writing about insurance, including life, health, home, and car insurance. Having reviewed hundreds of product disclosure statements and published over 800 articles, he loves simplifying complex insurance topics for everyday readers. Gary has contributed to major outlets like Yahoo Finance, The Sydney Morning Herald, and news.com.au, and holds a Bachelor of Arts (Honours) in English Literature from the University of Glasgow, along with a Tier 2 General Advice certification, ensuring his work adheres to ASIC’s RG146 standards. See full bio

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