One of the principal functions of BANHVI is to disperse housing subsidies to lower-income families through the Bono Familiar de Vivienda (referred to hereafter as the Family Housing Voucher or voucher). These vouchers are funded by the Housing Subsidy Fund. The National Housing Finance System Law established that the Housing Subsidy Fund would receive 33 percent of the total annual income of the Social Development and Family Allowance Fund (derived from 100 percent of all payroll taxes and 20 percent of all sales taxes) as well as three percent of the national.