个人所得税计算器

来源：互联网发布：小说超级基因优化液编辑：程序博客网时间：2024/04/28 22:15

一直以来工资被扣税都不知道怎么算的，查了一下资料发现笔算起来挺麻烦的（每次都要对着表弄），于是做一个小程序代劳。
(使用2008年3月生效的2000起征点)

主代码如下：

//计算个人所得税按钮单击事件
        private void button2_Click(object sender, EventArgs e)
        {
            if (t_wage.Text.Trim().Length == 0)
                return;
            //工资上缴个人所得税表  （工资－2000）之后的起始、终止、税率、减除额
            ArrayList taxTables = new ArrayList();
            taxTables.Add(new TaxTable(0, 500, 5, 0));
            taxTables.Add(new TaxTable(500, 2000, 10, 25));
            taxTables.Add(new TaxTable(2000, 5000, 15, 125));
            taxTables.Add(new TaxTable(5000, 20000, 20,375));
            taxTables.Add(new TaxTable(20000, 40000, 25, 1375));
            taxTables.Add(new TaxTable(40000,60000, 30, 3375));
            taxTables.Add(new TaxTable(60000, 80000, 35, 6375));
            taxTables.Add(new TaxTable(80000, 100000, 40, 10375));
            taxTables.Add(new TaxTable(100000, double.MaxValue, 45, 15375));
            msg.ForeColor = Color.Tomato;
            try
            {
                double wage = double.Parse(t_wage.Text);
                double wage_Tax=wage-2000;
                double tax=0;
                foreach (TaxTable tb in taxTables)
                {
                    if(wage_Tax>tb.tax_low&&wage_Tax<=tb.tax_up)
                    {
                        tax = wage_Tax * tb.taxRate / 100 - tb.deduct;
                        break;
                    }
                }
                double remain = wage - tax;
                msg.Text = "税前工资：" + t_wage.Text + "元/r/n" +
                 "税后工资：" + remain.ToString() + "元/r/n" +
                 "应交个人所得税：" + tax.ToString() + "元";
            }
            catch (Exception ex)
            {
                msg.Text = ex.Message;
            }
        }
        /// <summary>
        /// 存放个人所得税税率表的类
        /// </summary>
        class TaxTable
        {
            public double tax_low; //工资－2000后
            public double tax_up;  //工资－2000后
            public int taxRate;    //取值范围0--100
            public int deduct;     //减除额
            public TaxTable(double Ptax_low, double Ptax_up, int PtaxRate, int Pdeduct)
            {
                tax_low = Ptax_low;
                tax_up = Ptax_up;
                taxRate = PtaxRate;
                deduct = Pdeduct;
            }
        }