Oregon UIM Coverage Doesn't Offset Liability Insurance

For nearly a decade, Oregon underinsured motorist (UIM) coverage has stacked on top of the at-fault driver's liability insurance instead of being reduced by it. This was a meaningful change from the prior offset framework, and it has been settled law for Oregon auto policies issued or renewed since the start of 2016. This article explains what UIM is, how the current stacking framework operates, and the deadlines that an Oregon driver needs to know about to actually access the coverage they paid for.

What UM and UIM coverage are

In Oregon, every motor vehicle liability policy is required to include uninsured motorist (UM) and underinsured motorist (UIM) coverage at minimum statutory limits.¹ The two cover related but distinct scenarios:

• Uninsured motorist coverage pays the insured when an at-fault driver carried no liability insurance, when the at-fault driver cannot be identified (a hit-and-run), or when the at-fault driver's insurance is otherwise unavailable.
• Underinsured motorist coverage pays the insured when an at-fault driver carried liability insurance, but the limits are not enough to cover the injuries.

UM and UIM coverages are first-party — the insured is claiming under the insured's own policy — even though they pay out for an injury caused by another driver.

The current Oregon rule: stacking, not offset

For Oregon auto policies issued or renewed on or after January 1, 2016, UIM coverage is paid in addition to — not in place of — the at-fault driver's liability proceeds. If an injured driver carries $100,000 in UIM and the at-fault driver pays out $25,000 from a liability policy, the UIM coverage provides up to its full $100,000 on top of the $25,000 already paid, for up to $125,000 in total available compensation (subject to proof of damages).

This is a change from Oregon's prior statutory framework, under which a UIM insurer could reduce its payment by the amount the at-fault driver's liability insurer had paid. Under the prior framework, $100,000 in UIM and $25,000 in liability would have produced a total of $100,000, not $125,000.

The change comes from Senate Bill 411 (2015 Regular Session), which the Oregon Legislature passed and the Governor signed on March 23, 2015. SB 411 substantially restructured ORS 742.504 — the statute that sets the required terms for uninsured motorist coverage. The stacking result in the standard scenario, where the at-fault driver's liability limits are paid out in full and the injured driver then turns to her own UIM, flows from the broader restructuring of ORS 742.504 by SB 411 and from the absence of any general liability-proceeds-offset provision in the current ORS 742.504(7).²³

A more specific provision, ORS 742.504(7)(d), handles a narrower situation. When the at-fault driver's liability insurer offers to settle but the UIM insurer (under ORS 742.504(4)(d)(B) and (D)) declines to consent to that settlement and substitutes its own payment instead, (7)(d) prevents the UIM insurer from later reducing its payment by the offered-but-unpaid liability proceeds. Practically, this stops the UIM insurer from blocking a settlement and then claiming the missed payment as an offset.³

What still reduces UIM coverage

The stacking rule does not mean UIM is unreduced. ORS 742.504(7) still allows certain offsets, including:

• Reductions for workers' compensation and disability benefits paid to the injured insured under ORS 742.504(7)(b).³
• Other credits identified within the statute and its cross-referenced provisions, including ORS 742.504(7)(c).³

These offsets reflect Oregon's long-standing rule against double recovery for the same item of damages. A worker hit by a car on the job, who has already received workers' compensation benefits for the same injury, will see those benefits reduce the UIM payment for the overlapping items of loss.

The pre-2016 policy caveat

Auto policies issued or renewed before January 1, 2016, are not governed by SB 411's restructuring and remain subject to the prior offset framework. Most Oregon drivers are not in this category — auto policies typically renew every six or twelve months, and the policy in force during a present-day accident will almost always be a post-2016 policy. The older offset rule is theoretically possible only for an unusual policy that has somehow remained in continuous force without renewal since before 2016. A driver who suspects that may apply should bring the actual declarations page to a personal-injury attorney for a closer look.

A worked example

Consider an Oregon driver who is rear-ended by another vehicle, suffers a herniated disc and a traumatic brain injury, and accumulates $300,000 in medical bills, lost income, and pain and suffering damages. The at-fault driver carries a $50,000 liability policy. The injured driver carries $250,000 in UIM coverage on her own auto policy issued in 2024.

Under the current statute applied to her post-2016 policy:

• $50,000 from the at-fault driver's liability insurer.
• Up to $250,000 from the injured driver's own UIM, undiminished by the $50,000 already paid.
• Total available: up to $300,000.

Under Oregon's prior offset framework (which would have applied to a pre-2016 policy), the same facts would have produced a smaller total — the UIM coverage would have been reduced by the $50,000 in liability proceeds. The current rule produces a meaningfully larger pool of available compensation.

The two deadlines that matter

Two separate two-year clocks govern an Oregon UIM claim. They generally start on the same day — the date of the accident — but they are not the same clock, and missing either one can extinguish access to coverage.

The tort statute of limitations: ORS 12.110(1)

Oregon's two-year statute of limitations for personal injury, ORS 12.110(1), applies to the underlying tort claim against the at-fault driver. The clock runs from the date of the accident.⁴ Filing a personal-injury action against the at-fault driver within those two years preserves the underlying liability claim and, by extension, the UIM claim that depends on the existence of an underinsured at-fault tortfeasor.

The policy-side two-year deadline: ORS 742.504(12)(a)

Oregon law also requires every UM/UIM policy to give the insured a two-year window — measured from the date of the accident — within which to take one of four specific steps. Under ORS 742.504(12)(a), within two years after the accident the insured must do one of the following:

1. Reach a settlement with the insurer for the UIM claim, or
2. Formally initiate arbitration against the insurer, or
3. File an action in court against the insurer for the UIM claim, or
4. File a personal-injury action against the uninsured or underinsured motorist.

Doing any one of those four things within the two-year window preserves the UIM claim. Doing none of them within two years can extinguish UIM coverage even if the underlying tort claim was somehow timely on a different theory.³

The two clocks generally run on the same calendar — both start at the date of the accident, and both run for two years. They are not the same clock, however, and they do not necessarily fail in the same way. A timely tort filing against the at-fault driver under ORS 12.110(1) typically also satisfies item 4 of ORS 742.504(12)(a). But an insured who, for example, settles the underlying tort against the at-fault driver early but does nothing on the UIM side will have to be careful that one of the four (12)(a) steps has been taken before the two-year mark on the policy side.

Why this matters

For an Oregon driver who has been seriously injured by an underinsured at-fault driver, the difference between the offset and stacking rules can be the difference between a partial recovery and meaningful compensation. A driver who carries UIM should know what limits are on the policy.

Practical takeaways:

• The stacking rule has been Oregon law for nearly a decade. It applies to virtually every Oregon auto policy in force today.
• Notice deadlines under the policy itself can be short, separately from the two-year statutory clocks.
• The two-year tort SOL under ORS 12.110(1) and the two-year policy-side window under ORS 742.504(12)(a) generally run together — but they are separate, and missing either one can foreclose UIM access.

A driver injured in a serious Oregon motor vehicle accident is best served by collecting the at-fault driver's declarations page, the injured driver's own auto policy, the police report, and medical records, and consulting an Oregon personal-injury attorney early.

This article is educational

This article describes Oregon law in general terms. It is not legal advice and does not create an attorney-client relationship.

Time limits matter. Most Oregon personal-injury and auto-accident claims must be filed within two years of the injury or accident. Medical malpractice claims must be filed within two years of when you knew or reasonably should have known of the negligence, with an outer limit of five years from the act itself (with a fraud exception). Wrongful death claims must be filed within three years of the date of death. Claims against public bodies (cities, counties, state agencies, public hospitals) require a notice of claim within 180 days. Missing these deadlines typically ends a case.

If you think you may have a claim, call Huegli Law at 971-317-6436 for a free case review. Todd Huegli is licensed in Oregon and consults on cases in Oregon only.

Footnotes

1. ORS 742.502 — Required uninsured-motorist coverage in motor vehicle liability policies issued in Oregon. https://oregon.public.law/statutes/ors_742.502 ↩

2. Oregon Senate Bill 411, 2015 Regular Session (Or Laws 2015, ch 5; signed March 23, 2015) — restructuring of ORS 742.504 to remove the liability-proceeds offset for UIM coverage. Applies to policies issued or renewed on or after January 1, 2016. https://olis.oregonlegislature.gov/liz/2015R1/Measures/Overview/SB411 ↩

3. ORS 742.504 — Required terms for uninsured motorist coverage; relevant subsections include (7) (offsets and stacking), (7)(b) (workers' compensation and disability offsets), (7)(c) (cross-referenced credits), (7)(d) (no reduction for offered-but-unpaid liability proceeds in the insurer-refused-consent scenario under (4)(d)(B) and (D)), and (12)(a) (two-year policy-side deadline). https://oregon.public.law/statutes/ors_742.504 ↩ ↩² ↩³ ↩⁴ ↩⁵

4. ORS 12.110 — Actions for certain injuries to the person not arising on contract; effect of fraud or deceit. https://oregon.public.law/statutes/ors_12.110 ↩