Guides

Helmet Laws and Motorcycle Insurance: What Connects Them

By Rig & Ride · Published October 23, 2026

Helmet laws are the clearest policy lever in motorcycle safety, and the data on them is unusually clean. They are also widely misread.

What the laws are

As of October 2026, 17 states and DC require a helmet for every rider. Three — Illinois, Iowa and New Hampshire — have no helmet law at all. The other 30 require helmets only for some riders, usually those under 18 or 21, sometimes newly licensed riders of any age. Nebraska moved from the first group to the third after 2023. The helmet law table has every state.

What the laws do

Among motorcyclists killed in 2023 whose helmet use was recorded, 90% wore a helmet in all-rider-law states, 50% in age-limited states and 36% in no-law states. Where a law requires a helmet, almost everyone wears one; where it doesn't, most adult riders choose not to.

What the death rates don't show

It is tempting to compare deaths per registered bike by law type: 6.3 per 10,000 in all-rider states, 7.1 in age-limited states, 5.0 in the three no-law states. That comparison says nothing about helmets. The no-law states are northern, with short riding seasons; the all-rider group includes California and much of the year-round South. The comparison is between climates.

The right evidence comes from comparing riders in the same crashes. On that basis NHTSA estimates a helmet reduces a rider's risk of a fatal injury by 37 percent.

Where insurance comes in

Head injuries are among the most expensive injuries in any crash, and a rider's own policy pays a share of them through medical payments and, when the other driver is underinsured, UM/UIM. So the lower helmet use is where you ride, the more those lines matter — whatever you personally wear, because the policy limits you pick are what is available when you are the one hurt.

A helmet is your choice where the law allows it. The limits on the injury lines are your choice everywhere.