投标报价、开票、“二率”监控(开票率、开票收款率)。供应商信息、采购比价、发票、“三率”监控(发票取得率、进项抵扣率、付款收票率)。销项管理投标报价。“营改增”后,税金是价外税,增值税成为竞争性因素,增值税的计算需要用不含税造价作为计税基础,同时考虑各清单组成的抵扣属性、抵扣率等因素,进而联动影响城建税及教育费附加的计算。所以,施工企业多年以来 Tender offer, invoicing, “two rate ” monitoring (invoicing rate, invoicing rate). Supplier information, procurement parity, invoices, “three rate ” monitoring (invoice yield, entry deductible rate, payment invoice rate). Sales management bidding. “Tax change”, the tax is the price of foreign tax, VAT becomes a competitive factor, the calculation of value-added tax needs tax-free tax basis as a tax base, taking into account the composition of the deductible attribute list, the discount rate And other factors, and then linked to the impact of urban construction tax and education surcharges calculation. Therefore, construction companies over the years