What Is a Collision Deductible Waiver? Is It Worth It?

Last Updated on October 14, 2026

By James Shaffer Reviewed by Thomas Rockford, insurance industry executive and financial analyst, on October 14, 2026 How we fact-check

Most drivers know their collision deductible is what they pay out of pocket after an accident before insurance helps cover repairs. A collision deductible waiver (often shortened to CDW) is an optional add-on that can eliminate that deductible in a narrow situation: another driver is entirely at fault and your own collision coverage pays for the damage. In some states, including California, that driver must also be uninsured.

CDW can be a useful “sleep-better” endorsement, but it’s not available everywhere, and it doesn’t apply in many common accident scenarios. Below is what a collision deductible waiver is, how it works, when it won’t help, and how to decide if it’s worth the extra premium.

A collision deductible waiver (CDW) is an optional add-on that can pay your collision deductible when another driver is entirely at fault; in some states, including California, that driver must also be uninsured.
You generally need collision coverage to add CDW, and availability depends on your insurer and state.
CDW is limited: it often won’t apply in hit-and-runs, single-vehicle crashes, or accidents where you’re partially at fault.
CDW is usually low-cost, and it’s most valuable if you have a high deductible or would struggle to pay that deductible unexpectedly.

Table Of Contents

What Is a Collision Deductible Waiver?
Who Can Add a Collision Deductible Waiver?
When Does the Collision Deductible Waiver Apply?
When the Collision Deductible Waiver Usually Does Not Apply
How Much Does a Collision Deductible Waiver Cost?
Is a Collision Deductible Waiver Worth It?
How to Get Collision Deductible Waiver Coverage
FAQs on Collision Deductible Waiver
Collision Deductible Waiver: The Bottom Line
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What Is a Collision Deductible Waiver?

A collision deductible waiver is an optional policy endorsement that pays your collision deductible if your vehicle is damaged in an accident another driver fully caused. In some states, including California, it applies only when that driver is uninsured. Instead of paying (for example) the first $500 or $1,000 of repairs yourself, the waiver covers that amount so you have fewer out of pocket costs when getting your car repaired or replaced.

Good to know: CDW is easy to confuse with a “collision damage waiver,” which is a rental car product. This article is about the auto insurance endorsement that relates to your collision deductible.

Who Can Add a Collision Deductible Waiver?

Not every insurer offers CDW, and not every state allows the same versions of it. Progressive, for example, says it offers the waiver only in California and Massachusetts. In general, you’ll need:

Collision coverage on the vehicle (CDW is tied to collision claims).
An insurer that offers CDW as a policy endorsement (availability varies by company and state).
In some places or with some carriers, related uninsured motorist coverage may be required. If you’re sorting out these options, see the difference between uninsured and underinsured motorist coverage.

CDW is just one add-on among many types of coverage you can build into your car insurance policy. Whether it’s available for you depends on your state, your carrier, and how your policy is structured.

When Does the Collision Deductible Waiver Apply?

CDW typically applies only when all of the following are true:

The accident is covered under your collision coverage.
The other driver is at fault (not you).
In states that require it, such as California, the at-fault driver is uninsured (not merely underinsured).

That last point depends on your state, so ask how your insurer’s version works. Where the waiver requires an uninsured driver, it usually won’t help if the other driver has insurance that falls short, and your next steps depend on what coverages you carry and how fault is handled. If you run into disputes about what happened, this guide can help: what if the at-fault party lies about the car accident?

When the Collision Deductible Waiver Usually Does Not Apply

Even if you pay for CDW, there are common situations where you’ll still owe your deductible. Rules vary by insurer and state, but CDW often won’t apply in scenarios like these:

You’re at fault (or partially at fault): Many CDW endorsements require the other driver to be 100% at fault. If you share blame, you may still need to pay your deductible.
Hit-and-run accidents: In some states, including California, the waiver requires the other driver to be identified as uninsured, so a hit-and-run may not qualify. Check your policy and your state’s rules. Learn more: hit and run accidents and insurance.
Single-vehicle crashes: If you hit a pole, guardrail, or another object, CDW typically doesn’t help because there’s no uninsured at-fault driver involved.
The other driver is insured: Where the waiver is limited to uninsured drivers, as in California, it won’t apply if the at-fault driver has valid insurance, even if you use collision while liability is being sorted out.

How Much Does a Collision Deductible Waiver Cost?

CDW carries its own premium, and pricing depends on the insurer, your deductible amount, your vehicle, and risk factors like your driving history. We could not find a published price from the insurers that offer it, so ask for a quote with and without the waiver. Carriers may charge more to waive a higher deductible.

The trade-off is simple: if you carry a $1,000 (or higher) collision deductible, paying a small amount each month can be worthwhile if you’d struggle to come up with that deductible unexpectedly.

Is a Collision Deductible Waiver Worth It?

CDW tends to be most valuable when:

You have a higher collision deductible (like $1,000+).
You drive in an area with a higher share of uninsured drivers.
Paying your deductible on short notice would strain your budget.

It’s also worth looking at the bigger “uninsured driver” picture. Nationwide, uninsured driving remains a real issue. If you’re deciding how much protection you need, read: do you need uninsured motorist coverage?

On the other hand, you might skip CDW if you have a low deductible, rarely drive, or you’re comfortable covering your deductible in an emergency.

How to Get Collision Deductible Waiver Coverage

Not all car insurance companies offer CDW, and online quote tools don’t always show every endorsement option. If you want it, the easiest approach is:

Ask the insurer (or an agent) whether CDW is offered in your state.
Confirm the exact rules: hit-and-run treatment, partial-fault restrictions, and whether the waiver applies only to uninsured drivers.
Compare quotes, then choose the deductible/endorsements that fit your budget. You can start here: shop around online.

My advice is to ask your agent for the waiver wording before you pay for it, especially whether the other driver has to be uninsured and identified. If you carry a $1,000 deductible and the price is small, it can be worth it; with a deductible of $500 or less, I would usually skip it.

FAQs on Collision Deductible Waiver

What is a collision deductible waiver (CDW)?

A collision deductible waiver is an optional endorsement that can cover your collision deductible when another driver is entirely at fault and your collision coverage pays for repairs. In some states, such as California, that driver must also be uninsured.

Do I need collision coverage to get a collision deductible waiver?

Yes, in most cases. CDW is tied to your collision coverage, so you generally need collision on the vehicle before you can add the waiver.

Will CDW cover my deductible if I’m partially at fault?

Usually not. Many CDW endorsements require the other driver to be 100% at fault. If you share any fault, you may still owe your deductible.

Does a collision deductible waiver apply to hit-and-run accidents?

Often no. In some states, including California, the waiver requires the other driver to be identified as uninsured, so a hit-and-run may not qualify. Rules vary by state and insurer, so check your policy and your state’s rules.

Is CDW the same as uninsured motorist property damage (UMPD)?

No. CDW waives your collision deductible when collision is paying. UMPD is a separate coverage that can pay for vehicle damage caused by an uninsured driver (availability and rules vary by state). In California, UMPD is available only if you do not carry collision, so drivers there usually choose one or the other.

How much does collision deductible waiver coverage cost?

Costs vary by insurer, state, and your deductible amount. It may cost more to waive a higher deductible. Get quotes and ask how the waiver is priced for your policy.

How do I add a collision deductible waiver to my policy?

Ask your insurer or agent if CDW is offered in your state and for your vehicle. If it’s available, you can usually add it as an endorsement to a policy that already includes collision coverage.

Collision Deductible Waiver: The Bottom Line

A collision deductible waiver can be a smart add-on if you carry collision coverage with a high deductible and your insurer offers it in your state. Just remember it’s narrow coverage: it generally won’t apply to hit-and-runs, single-car crashes, or accidents where you share any fault, and availability varies by state and insurer.

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Checked October 14, 2026