退税计算器小程序需要的来取

使用方法：将代码复制到文本文档，把文本文档由.txt后缀改为html后缀，就可以用了！！




    
    
    
    


    

        
个人所得税退税计算器
        
        

            全年总收入（含年终奖）
            
        
        
        

            单独计税的年终奖
            
        
        
        

            五险一金（每月）
            
        
        
        

            专项附加扣除（每月）
            
        
        
        

            其他扣除（每月）
            
        

        

            已预缴税款
            
        

        立即计算

        

            

                
综合所得应纳税
                
yen0.00
            
            

                
年终奖单独计税
                
yen0.00
            
            

                
已预缴税款
                
yen0.00
            
            

                
最终应退/补税额
                
yen0.00
            
        
    

    <script>
        const taxBrackets = [
            { max: 36000, rate: 0.03, deduction: 0 },
            { max: 144000, rate: 0.1, deduction: 2520 },
            { max: 300000, rate: 0.2, deduction: 16920 },
            { max: 420000, rate: 0.25, deduction: 31920 },
            { max: 660000, rate: 0.3, deduction: 52920 },
            { max: 960000, rate: 0.35, deduction: 85920 },
            { max: Infinity, rate: 0.45, deduction: 181920 }
        ];

        const separateTaxBrackets = [
            { max: 3000, rate: 0.03, deduction: 0 },
            { max: 12000, rate: 0.1, deduction: 210 },
            { max: 25000, rate: 0.2, deduction: 1410 },
            { max: 35000, rate: 0.25, deduction: 2660 },
            { max: 55000, rate: 0.3, deduction: 4410 },
            { max: 80000, rate: 0.35, deduction: 7160 },
            { max: Infinity, rate: 0.45, deduction: 15160 }
        ];

        function calculateTax() {
            // 获取输入值
            const getValue = id => parseFloat(document.getElementById(id).value) || 0;
            const totalIncome = getValue('totalIncome');
            const separateIncome = getValue('separateIncome');
            const specialDeduction = getValue('specialDeduction');
            const additionalDeduction = getValue('additionalDeduction');
            const otherDeduction = getValue('otherDeduction');
            const prepaidTax = getValue('prepaidTax');

            // 计算扣除总额
            const annualDeductions = (specialDeduction + additionalDeduction + otherDeduction) * 12;

            // 计算综合所得部分
            const comprehensiveIncome = Math.max(totalIncome - separateIncome, 0);
            let taxableIncome = comprehensiveIncome - 60000 - annualDeductions;
            taxableIncome = Math.max(taxableIncome, 0);

            // 计算综合所得税
            let comprehensiveTax = 0;
            for (const bracket of taxBrackets) {
                if (taxableIncome <= bracket.max comprehensivetax='taxableIncome' bracket.rate - bracket.deduction break let separatetax='0;' if separateincome> 0) {
                const monthlyIncome = separateIncome / 12;
                for (const bracket of separateTaxBrackets) {
                    if (monthlyIncome <= bracket.max) {
                        separateTax = separateIncome * bracket.rate - bracket.deduction;
                        break;
                    }
                }
            }

            // 计算最终结果
            const totalTax = comprehensiveTax + separateTax;
            const taxDifference = totalTax - prepaidTax;

            // 更新显示
            document.getElementById('comprehensiveTax').textContent = `yen${comprehensiveTax.toFixed(2)}`;
            document.getElementById('separateTax').textContent = `yen${separateTax.toFixed(2)}`;
            document.getElementById('prepaidTaxDisplay').textContent = `yen${prepaidTax.toFixed(2)}`;
            
            const finalResult = document.getElementById('finalResult');
            finalResult.querySelector('.result-value').textContent = `yen${Math.abs(taxDifference).toFixed(2)}`;
            finalResult.classList.toggle('tax-return', taxDifference < 0 finalresult.classlist.toggletax-pay taxdifference> 0);
        }
    </script>