基于所得税影响的债券资本成本的重新考虑

Rethinking on the Bond Capital Cost Based on the Influence of Income

目前不考虑货币时间价值的债券资本成本的计算公式存在两个问题:未考虑不能抵税的利息费用;未考虑溢折价及债券费用摊销对所得税税前扣除的影响。根据所得税相关规定,可推导出相应计算方法。

When the time value of money is not taken into account,there are two problems in the formula calculating bond capital cost:one is not taking into account the interest cost which cannot be used for tax;the other is not taking into consideration the influence of the premium and discount and the amortization of bond cost on the deduction of income tax before taxation.