Diminished Value Claims in Washington

How Diminished Value Works in Washington

Washington is one of the few states where the highest court has recognized first-party diminished value — but insurers found a workaround. In Moeller v. Farmers Insurance Co. of Washington (2011), the Washington Supreme Court held that a policy’s promise to “repair or replace the damaged property… with other of like kind and quality” obligated the insurer to pay diminished value when repairs alone couldn’t restore full market value.

Insurers responded by rewriting their policy language. Most Washington auto policies issued or renewed after 2011 now explicitly exclude diminished value — language like “we will not pay for any decrease in the value of the vehicle” is now standard. If your policy was issued before 2011 and hasn’t been updated, or if you have a non-standard policy without the exclusion, first-party DV may still be available. For everyone else, the dependable path is third-party: file against the at-fault driver’s insurance.

Third-party DV in Washington is well-established and faces no unusual hurdles. The state follows pure comparative fault — your recovery is reduced by your percentage of fault, but you’re never completely barred. Washington also allows uninsured motorist property damage (UMPD) to cover DV if the at-fault driver is uninsured, making it one of the more protective states for claimants overall.

Washington’s Key Court Rulings

Moeller v. Farmers Ins. Co. of Washington, 173 Wn.2d 264 (2011): The Washington Supreme Court squarely addressed whether an auto insurer’s promise to “repair or replace… with other of like kind and quality” included diminished value. In a 6–3 decision, the Court said yes — repairing physical damage and writing a check for DV are both required to make the policyholder whole. The majority reasoned that a repaired vehicle with an accident history is not “of like kind and quality” to an otherwise identical vehicle with no accident history.

The Moeller ruling was a genuine win for policyholders at the time. But the legal landscape has shifted. Insurers responded to Moeller by adding DV exclusions to their Washington policy forms, and the Office of the Insurance Commissioner approved those forms. The lesson: Moeller established the legal principle, but policy language controls. Read your policy.

For third-party claims, there’s no question — Washington courts have consistently applied the measure of damages for property damage as the difference between pre-accident market value and post-repair market value, which is exactly what a DV claim quantifies. No special policy language is needed because you’re not claiming under a contract; you’re claiming under tort law.

How to File a Diminished Value Claim in Washington

Step 1: Check your own policy if you have collision coverage. Look for language explicitly excluding diminished value — words like “diminution in value,” “decrease in value,” or “loss of market value.” If you don’t see them, you may have a valuable first-party claim under Moeller. (This is uncommon on current policies but worth five minutes of reading.)

Step 2: Get a professional diminished value appraisal. Whether filing first- or third-party, you’ll need a market-based appraisal from a certified appraiser. The 17c formula is your starting point; the appraisal is your evidence. Expect to pay $200–$400.

Step 3: File a third-party claim with the at-fault driver’s insurer. Send a written demand letter with your appraisal, repair documentation, the accident report, and the dollar amount you’re claiming. Be specific. Washington adjusters are generally familiar with DV claims — you won’t need to explain the concept from scratch.

Step 4: If the at-fault driver is uninsured, use your UMPD coverage. Washington allows UMPD to cover diminished value. The claim process is the same as a third-party claim, but you file through your own UMPD coverage. Your insurer steps into the shoes of the at-fault driver’s (nonexistent) insurer.

Step 5: Negotiate and, if needed, file in small claims. Washington’s $10,000 small claims limit covers the vast majority of DV claims. Small claims is designed for self-representation. Bring your appraisal, photographs, repair records, and the insurer’s correspondence.

Frequently Asked Questions About DV in Washington

Does my Washington policy still cover first-party DV after Moeller?

Probably not — but check. Most insurers added explicit DV exclusions to Washington policies within a year or two of the Moeller decision. If your policy was issued before 2011 and you’ve kept the same coverage without updates, you might still have Moeller-era language. If you see a DV exclusion, first-party is off the table and you need to file third-party.

Can I claim DV through UMPD if the at-fault driver is unknown (hit-and-run)?

No. Washington’s UMPD coverage requires that the at-fault driver be identified and confirmed as uninsured. Hit-and-run accidents where the driver is never found don’t trigger UMPD coverage for property damage in Washington. You’d need collision coverage (and a policy without a DV exclusion) instead.

What if the at-fault driver’s insurer argues my car was repaired properly and therefore has no diminished value?

This is the most common insurer pushback. The argument is: “We paid for quality repairs, so the car is worth the same as before.” This is incorrect as a matter of economics — two otherwise identical vehicles, one with an accident history and one without, do not sell for the same price. Your independent appraisal should quantify this difference. In Washington, the Moeller court explicitly rejected this argument.

How does Washington’s comparative fault rule affect my DV claim?

If you were partially at fault for the accident, your DV recovery is reduced by your fault percentage. For example, if you were 30% at fault and your DV is $4,000, you’d recover $2,800. Washington’s pure comparative fault system means you can recover even if you were mostly at fault — but your award shrinks accordingly.

Claim Types Available in Washington

• First-party claim — file against your own insurance policy. First-party DV was established by Moeller v. Farmers Ins. Co. of Washington (2011) under ambiguous 'repair or replace... like kind and quality' policy language. However, many WA insurers have since revised policy language to expressly exclude DV. Check your policy.
• Third-party claim — file against the at-fault driver's insurance.

Key Court Ruling for Washington

Moeller v. Farmers Ins. Co. of Washington, 173 Wn.2d 264 (2011) — Washington Supreme Court recognized first-party DV under ambiguous 'repair or replace... like kind and quality' language. Many insurers have since added explicit exclusions. Third-party DV is fully available.

Statute of Limitations in Washington

You have 3 years from the date of the accident to file a diminished value claim in Washington.

Small Claims Court in Washington

Washington's small claims limit is $10000. Most diminished value claims fall well under this threshold — you may be able to file without an attorney.

What Makes Washington Different

• First-party DV recognized in Moeller (2011, 5-4 decision) under ambiguous 'like kind and quality' policy language — but most current WA insurers now expressly exclude DV
• Third-party DV is fully available and well-established
• UMPD covers DV — confirmed by a $2.09M State Farm UMPD class action settlement (March 2012–Feb 2024 accidents)
• Pure comparative negligence (RCW 4.22.005) — you can recover even if 99% at fault. One of the most plaintiff-friendly systems in the US

How to File a Diminished Value Claim in Washington

1. Get a professional diminished value appraisal. The 17c formula (our calculator) gives you a starting point, but insurance companies will demand a certified appraisal for any claim above the 17c result.
2. Gather documentation: pre-accident photos, repair invoices, the accident report, and before/after market value comparisons.
3. File with your own insurance company — First-party DV was established by Moeller v. Farmers Ins. Co. of Washington (2011) under ambiguous 'repair or replace... like kind and quality' policy language. However, many WA insurers have since revised policy language to expressly exclude DV. Check your policy..
4. Negotiate. Insurance companies typically start low. Be prepared to go back and forth with counteroffers based on your independent appraisal.
5. If they won't settle fairly, file in small claims court.

Frequently Asked Questions

Does Washington allow diminished value claims?

Yes. Washington allows diminished value claims through: your own insurance (first-party) , the at-fault driver's insurance (third-party) .

How long do I have to file in Washington?

3 years from the accident date.

Can I file without an attorney in Washington?

Yes — most DV claims fall under Washington's $10000 small claims limit.

Does the 17c formula determine what I'll actually get?

No. The 17c formula is a starting point. Insurers use it as a low baseline. Independent appraisals commonly find 2–4× the 17c result. Never accept the 17c figure as the final offer without pushing back.

What if I was partially at fault for the accident?

Your recovery is reduced by your percentage of fault (comparative negligence). For example, if you were 20% at fault, your recovery is reduced by 20%.

Statute: Wash. Rev. Code § 4.16.080 — Source