Exports (from Japan)
Personal effects and household goods clearances: Duty and tax free, Shipment must depart within 6 months of shippers(your) departure from Japan.
Commercial goods clearances: Shipment may be considered commercial at destination, and subject to import country`s import duties & taxes. (Personal effects are normally duty free but depends on country)
Note: Motor cycles and cars require a commercial customs clearance.
Comments:
1) If sending personal effects and vehicles together, 2 customs clearances (Commercial & Personal efffects) are required.
2) If goods are put into storage and not shipped within 6 months of customers departure, a commercial customs clearance is required.
Imports (into Japan)
Personal effects and household goods clearances: Duty and tax free.
Commercial goods clearances: Shipment is subject to import import duties/excises & taxes. (Duties and tax depends on commodity classification).