The premium is calculated on the basis of the amount of municipal taxes paid in the previous year (called on income basis) and the number of people per household (on capita basis) (in addition, the amount of assets (on assets basis) and equivalent based premium (on average basis) in Fujimi-shi).
Ang premium ay kinakalkula base sa ibinayad na municipal taxes ng nagdaang taon (depende sa income o kita), at ang bilang ng miembro ng pamilya (per capita basis).