Motorcycle Accident Laws in Hawaii (2026): Deadlines & Helmets

A motorcycle crash in Hawaii is shaped by rules that differ from car crashes in a few key ways: Hawaii is a no-fault (PIP) state, its helmet law only reaches younger riders, and the minimum insurance limits just increased at the start of 2026. This guide walks through the Hawaii rules that shape a motorcycle-injury or wrongful-death claim, starting with the filing deadline and how shared fault is counted, then the no-fault, helmet, and lane rules that matter most for riders. It is general information, not legal advice.

This page is part of our Motorcycle Accident Laws by State series. Deadlines are firm and every crash is different, so treat the figures below as a starting point and confirm the current law before relying on it.

The Hawaii deadline to sue (statute of limitations)

The first thing to protect after a motorcycle crash in Hawaii is the deadline. A personal-injury lawsuit must generally be filed within two years of the date of the crash under HRS 657-7, which sets a two-year limit for the recovery of compensation for damage to persons or property. A wrongful-death action carries its own two-year period, measured from the date of death, under HRS 663-3(b), Hawaii's wrongful-death statute, rather than HRS 657-7. Hawaii applies a discovery rule in limited circumstances, so the clock can start when an injury reasonably should have been discovered, but for an obvious crash injury it generally starts on the date of the collision.

Because these rules are unforgiving, the safe assumption after any Hawaii motorcycle crash is that a two-year clock is already running. When an injury surfaces later than the crash itself, get a free claim review from a Hawaii motorcycle accident lawyer on when your two years began (attorney advertising).

How Hawaii splits fault: modified comparative negligence

Hawaii follows modified comparative negligence under HRS 663-31. A jury assigns each party a percentage of fault and the injured person's recovery is reduced by their own percentage. The bar is set just above an even split: an injured person can still recover if their fault is not greater than the combined fault of the defendants, so a 50/50 split still allows a (reduced) recovery, but a person who is 51 percent or more at fault recovers nothing. A rider found 30 percent at fault recovers 70 percent of the damages.

This matters in motorcycle cases because insurers often try to push the rider's share past the 50 percent line, sometimes leaning on stereotypes about speed or risk-taking. Clear evidence that the other driver caused the crash, covered below, is what keeps the rider's share under the bar.

No-fault, PIP, and motorcycles in Hawaii

Hawaii is a no-fault state. An injured person generally turns first to their own Personal Injury Protection (PIP) benefits for medical expenses, and can step outside the no-fault system to sue the at-fault driver for pain and suffering and other damages once the claim crosses Hawaii's statutory threshold. The threshold can be met by reaching a medical-expense amount set by the insurance commissioner or by suffering a qualifying serious injury, and most serious motorcycle injuries clear it.

Motorcyclists should confirm their own coverage carefully, because the way PIP applies to a motorcycle policy can differ from a standard car policy, and the practical effect is that a seriously injured rider will usually be pursuing the at-fault driver directly. A rider's own uninsured/underinsured-motorist coverage is often critical when the at-fault driver carries only minimum limits.

Hawaii's helmet law

Hawaii has a partial helmet law that reaches only younger riders. Under HRS 286-81, no person under 18 may operate or ride as a passenger on a motorcycle unless wearing a securely fastened safety helmet. Riders 18 and older are not legally required to wear a helmet. The statute also requires eye protection, such as goggles or a face shield, for any rider whose motorcycle is not equipped with a windscreen, and it directs the director of transportation to set the specifications that helmets and other protective devices must meet by administrative rule. Even where a helmet is optional, safety agencies strongly recommend one.

Can the helmet question reduce your damages?

For adult riders who may legally ride without a helmet, the central question in a damages dispute is causation: did the absence of a helmet actually cause or worsen the specific injuries? A defendant who raises helmet non-use has to tie it to the harm, and injuries to the legs, spine, arms, or internal organs are generally unrelated to whether a helmet was worn. Where helmet non-use is relevant to a head injury, it folds into Hawaii's comparative-fault analysis and can reduce, rather than automatically eliminate, recovery, with the size of any reduction depending on the medical evidence. For riders under 18, the helmet is legally required, so non-use is also a statutory violation that can affect the fault picture.

Lane splitting in Hawaii

Lane splitting, riding a motorcycle between lanes of traffic, is not permitted in Hawaii. Under HRS 291C-153, a motorcycle is entitled to full use of a lane, but no person may operate a motorcycle between lanes of traffic or between adjacent rows of vehicles. A rider who lane splits can be cited and is exposed to a larger share of fault if a crash results, which under Hawaii's modified comparative-negligence rule can reduce or, past the 50 percent threshold, bar recovery. California remains the only state that has expressly legalized lane splitting; Hawaii is not among the states that allow even limited filtering.

Damage caps and minimum insurance

Hawaii does not cap compensatory damages such as medical bills and lost income in an ordinary motorcycle-injury case. Hawaii law does cap pain-and-suffering damages at $375,000 under HRS 663-8.7, but that limitation expressly does not apply to the tort actions listed in HRS 663-10.9(2), and that list includes torts relating to motor vehicle accidents. An ordinary motorcycle-crash claim is therefore not subject to the $375,000 cap. The narrow carve-out is a motor-vehicle claim built on the maintenance or design of a highway, which HRS 663-10.9 routes to its own paragraph (4) rather than to the enumerated list. On insurance, HRS 431:10C-301(b) now requires liability coverage of at least $40,000 per person and $80,000 per accident for bodily injury and $20,000 for property damage, the 40/80/20 minimum that replaced the prior 20/40/10 limits. That increase was made by Act 138 of 2024 and reached policies issued or renewed on or after January 1, 2026. A policy must also carry at least $10,000 per person in personal injury protection benefits under HRS 431:10C-103.5. Because the other driver may carry only the minimum, a rider's own uninsured/underinsured-motorist coverage is often the most important policy in the case.

Why motorcycle cases are different

Motorcycle crashes tend to produce more severe injuries than car crashes because a rider has no surrounding cabin, and the Hawaii-specific factors above stack on top of that: a no-fault system that a serious injury must clear, a helmet rule that only reaches minors, and juries that can carry bias against riders. Each of those is a reason that careful documentation of how the crash actually happened, and of the full extent of the injuries, can change the outcome of a claim.

Evidence and how to evaluate a claim

The strongest evidence in a motorcycle case is often gathered in the first days. The police crash report, photographs of the scene, the vehicles, and the rider's gear, the helmet if one was worn, witness contact information, and complete medical records all help establish both fault and the severity of the harm. Most personal-injury lawyers in Hawaii work on a contingency fee, meaning the fee is a percentage of any recovery with usually no upfront cost, and most offer a free initial consultation. No lawyer can promise a specific result or dollar figure, because the outcome depends on liability, the available insurance, the comparative-fault split, and the harm actually proven. The practical points are clear: a two-year clock is running, the evidence is perishable, and pinning down the facts early protects the case.

Frequently Asked Questions

What is the deadline to sue after a motorcycle accident in Hawaii?

Generally two years. HRS 657-7 gives an injured person two years from the date of the crash to file a personal-injury lawsuit, and a wrongful-death claim carries the same two-year period measured from the date of death. A limited discovery rule can apply where an injury could not reasonably have been known right away, but for an obvious crash injury the clock starts on the date of the collision, so confirm your specific deadline early.

Is failing to wear a helmet going to hurt my case in Hawaii?

It depends on your age and your injuries. Hawaii only requires helmets for riders under 18 (HRS 286-81), so an adult may legally ride without one. For an adult, a defendant must show that the lack of a helmet actually caused or worsened your specific injuries, which usually limits the argument to head injuries; leg, spine, and internal injuries are generally unaffected. For a rider under 18, going without a required helmet is also a statutory violation that can weigh in the fault analysis.

Is lane splitting legal in Hawaii?

No. Lane splitting, riding between lanes of traffic, is not permitted in Hawaii and is prohibited by HRS 291C-153. A rider who lane splits can be ticketed and may be assigned a larger share of fault if a crash results, which under Hawaii's modified comparative-negligence rule can reduce or, past the 50 percent threshold, bar recovery.

How much is a motorcycle accident case worth?

There is no set figure and no one can honestly promise an amount. Value depends on the severity of the injuries, the medical bills and lost income, the available insurance (including your own uninsured/underinsured-motorist coverage), and your share of fault under Hawaii's modified comparative-negligence rule. Hawaii does not cap damages in an ordinary motor-vehicle crash case: the state's $375,000 pain-and-suffering cap in HRS 663-8.7 does not apply to torts relating to motor vehicle accidents, so the actual recovery turns on the proof in your specific case.