60 ILCS 1/140-15: Tax.

The township board shall, in the resolution authorizing the bonds, provide for the collection of a direct annual tax sufficient to pay the interest and principal of the bonds as each falls due. A certified copy of the resolution authorizing the bonds and levying the tax shall be filed in the office of the county clerk of the county in which the township is located, and the county clerk shall extend annually against the property in the township a tax sufficient to raise in each year the amount provided in the resolution for the payment of principal and interest in that year.