 The law sets out a system of public funding for health services by means of a progressive health tax, administered by "Bituah Leumi", or the National Insurance Institute, Israel's social security organization, which transfers funding to the Kupot Holim according to a certain formula based on the number of members in each fund, the age distribution of members, and a number of other indices.The Kupot Holim also receive direct government funding.Wage-earners and the self-employed must pay 3.1% of their monthly salary up to NIS 5,804 and 5% of anything earned above that.