Uninsured Motorist Coverage in Washington

Here's an uncomfortable fact about driving in Washington: a large share of the drivers around you can't actually pay for the damage they cause. Some carry no insurance at all; many more carry the bare state minimum, which runs out fast in a serious crash. If one of them hits you, your own injuries and bills don't disappear — they just become your problem, unless you carried the one coverage built for this exact moment. It's called uninsured/underinsured motorist coverage, and it's some of the best value on a car insurance policy.

Want to make sure you have it, and enough of it? Start a quote and a licensed advisor will check.

What UM/UIM actually does

Uninsured/underinsured motorist coverage (UM/UIM) steps into the at-fault driver's shoes when they can't pay:

• Uninsured motorist (UM) — covers you when the at-fault driver has no insurance, or in many hit-and-run situations.
• Underinsured motorist (UIM) — covers the gap when the at-fault driver has insurance, but not enough to cover your injuries or damage.

It typically comes in two parts: bodily injury (your medical bills, lost wages, and related costs) and property damage (your vehicle). The bodily injury piece is the one that matters most, because that's where the numbers get large.

Why it matters so much here

Two realities make UM/UIM especially valuable in Washington:

1. A meaningful share of drivers are uninsured — estimates have long put it around one in six. That's a lot of cars you can't count on. 2. The state minimum is low. Washington's minimum liability is just 25/50/10. A driver carrying only that can cause far more harm than their policy will pay, leaving you "underinsured" through no fault of your own.

Add in long highway commutes, mountain passes, and winter conditions, and the odds of a serious crash with an inadequately insured driver aren't trivial.

How Washington handles it

In Washington, insurers must offer UM/UIM coverage, and you can only reject it (or reduce it below your liability limits) in writing. That's a strong hint about how valuable the state considers it. Our usual guidance: don't decline it, and set it to match your liability limits so your protection is symmetrical.

Setting those limits correctly is part of what we'd quote for you — it should rarely be an afterthought.

What it costs

UM/UIM is generally inexpensive relative to how much it can pay, because it layers onto coverage you already carry. Illustrative monthly add-on ranges, depending on your limits:

UM/UIM limits	Illustrative monthly add-on
Matching state-minimum limits	A few dollars
100/300 bodily injury	Modest — often $10–$25
Higher limits to match strong liability	Scales up, still good value

These are illustrative, not a quote. The real figure depends on your full policy and is what we'd quote for your situation.

Smart moves

1. Don't decline it. The written rejection exists for a reason — most drivers shouldn't sign it. 2. Match it to your liability. If you carry 100/300 in liability, carry it in UM/UIM too. 3. Layer with an umbrella. Some umbrella policies can extend UM/UIM-style protection; ask your advisor how yours fits. 4. Revisit after life changes. New car, new commute, a teen driver — reasons to re-check your limits.

The underinsured trap people miss

Everyone pictures the uninsured driver — no policy at all. The quieter, more common problem is the underinsured driver, and it catches people precisely because the other driver does have insurance.

Here's the trap. A driver carrying Washington's minimum liability has just $25,000 of bodily-injury coverage per person. If they cause a crash that leaves you with $90,000 in medical bills and lost wages, their policy pays its $25,000 and is done. Without underinsured motorist coverage, the remaining $65,000 is your problem — even though you did nothing wrong and the other driver was "insured." Their coverage simply ran out long before your injuries did.

This is why matching your UIM limits to your liability limits matters so much. If you carry 100/300 in liability — protecting others well — but skip or skimp on UIM, you've protected everyone on the road better than you've protected yourself. UIM closes that gap, stepping in to cover the difference between what the at-fault driver's thin policy pays and what your injuries actually cost, up to your limit.

A few things worth confirming:

• Set UM/UIM to match your liability. Symmetry is the simplest sound rule.
• Know it covers your passengers. Family and friends in your car are protected too.
• Don't quietly decline it. In Washington you have to reject it in writing — and most drivers shouldn't.

The whole point of working with an advisor is that someone sets this correctly before the crash, instead of you discovering the gap after. And it's the same person advocating for you when you file. Get a quote, or read our other coverage guides.

Frequently Asked Questions

If I have good health insurance, do I still need UM/UIM? Yes — they cover different things. Health insurance helps with medical treatment, but it won't replace the wages you lose while you can't work, won't compensate for pain and suffering, and may leave you with deductibles and network limits. UM/UIM addresses the full range of losses from a crash caused by a driver who can't pay, including lost income. The two work together rather than one making the other unnecessary.

What is uninsured/underinsured motorist coverage? It's coverage that pays for your injuries and, optionally, vehicle damage when the at-fault driver either has no insurance (uninsured) or doesn't have enough to cover your losses (underinsured). It protects you and your passengers in crashes caused by drivers who can't pay, including many hit-and-run situations.

Is uninsured motorist coverage required in Washington? Insurers are required to offer it, but you can decline or reduce it in writing. It is not strictly mandatory to carry. Given how many drivers are uninsured or carry only the low state minimum, most advisors strongly recommend keeping it — and setting it to match your liability limits.

How much UM/UIM coverage should I have? A common recommendation is to match your UM/UIM limits to your liability limits, so you're as protected against others as you are responsible toward them. If you carry 100/300 in liability, carrying the same in UM/UIM keeps your coverage balanced. A licensed advisor can confirm the right number for you.

Does UM/UIM cover hit-and-run accidents? In many cases, yes — uninsured motorist coverage often responds to hit-and-run crashes where the at-fault driver can't be identified, subject to your policy's terms. This is one of the reasons it's such valuable coverage, since hit-and-run leaves you with no one else to collect from.

Is uninsured motorist coverage expensive? Generally no. Because it layers onto coverage you already carry and pays only in specific situations, UM/UIM is usually inexpensive relative to the protection it provides. For most drivers it's one of the best value-for-money coverages on the entire auto policy.