Motorcycle Helmet & Insurance LawsAll 50 States

A universal helmet law requires all riders and passengers to wear a DOT-approved helmet regardless of age. Roughly half the states have universal laws; most of the rest have 'partial' laws that require helmets only for younger riders (commonly under 18 or 21) or riders carrying less than a set amount of medical coverage. A few states have no helmet requirement for adults at all. Use the checker above for your specific state.

Most states require motorcyclists to carry at least minimum liability insurance, just like car drivers, and to show proof when asked. A small number of states handle it differently. Even where insurance isn't strictly mandated, riding without liability coverage exposes you to enormous personal financial risk if you injure someone, and it's illegal to ride uninsured in the great majority of states.

Helmet use itself usually isn't a rating factor, but it dramatically affects your injury risk — and your own medical exposure — in a crash. Some states with partial helmet laws require riders who go without a helmet to carry higher medical or PIP coverage. The bigger cost levers on your premium are your riding record, bike type and engine size, location, and completing a certified rider-safety course, which many insurers reward with a discount.

The state averages shown here are blended estimates, not quotes — your actual premium depends on your bike, age, riding history, location, and coverage choices. Sport bikes and large-displacement engines cost more to insure than cruisers or commuter bikes. Bundling with auto, storing the bike securely, and completing an MSF rider course are the most reliable ways to lower the rate.