In estimating the cash receipts for any fiscal year for the purpose of determining the amount of the appropriation under the caption "reserve for uncollected taxes", required by section seven of the original act to be included in the budget or tax ordinance of any municipality which shall have issued bonds containing the recital required by section one of this act (hereinafter referred to as "issuing municipality"), the receipt may be anticipated of eighty per cent (80%) of any special taxes levied or to be levied and payable in such fiscal year.
N.J.S. § App.A:4-31.2