An Act Amending Certain Provisions Of The National Internal Revenue Code On Value-Added Tax (Applies To Installment Sales; Provides That The Seller'S Obligation To Pay The Vat Shall Arise Only After A

An Act Amending Certain Provisions Of The National Internal Revenue Code On Value-Added Tax (Applies To Installment Sales; Provides That The Seller'S Obligation To Pay The Vat Shall Arise Only After Actual Receipt By Him Of The Buyer'S Payment)