Automobile insurance coverage and special provisions in Japan

Automobile insurance coverage in Japan depends heavily on specific contract details, such as the permitted scope of drivers and age restrictions. If a driver is not included in the policy's designated driver range or does not meet the required age criteria, the insurance provider may deny claims for vehicle repairs, leaving the driver responsible for costs.

For those driving a vehicle owned by a parent, coverage options vary based on living arrangements. If the driver lives with the parent, the ‘other vehicle driving rider’ (tasha unten tokuyaku) typically does not apply. However, if the parent and child live separately, the driver's own insurance might cover the accident under this rider. Alternatively, ‘one-day automobile insurance’ serves as a low-cost option for temporary drivers.

Certain insurance special provisions (tokuyaku) allow for coverage without affecting the policyholder's premium grade (no-count accidents). These include rental car expense riders, lawyer fee riders—which are particularly useful in non-fault accidents where insurers cannot negotiate settlements—and personal liability riders that cover everyday accidents, such as bicycle mishaps or property damage caused by pets.