70 lines
2.2 KiB
JavaScript
70 lines
2.2 KiB
JavaScript
document.addEventListener("DOMContentLoaded", function () {
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function getVal(id) {
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return parseFloat(document.getElementsByName(id)[0].value) || 0;
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}
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function setVal(id, value) {
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document.getElementsByName(id)[0].value = Number(value).toFixed(2);
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}
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window.calculate = function () {
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// Base Values
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let gross_total_income = getVal("gross_total_income");
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let disallowance_14a = getVal("disallowance_14a");
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let disallowance_37 = getVal("disallowance_37");
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// Deductions
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let d80_business = getVal("deduction_80ia_business");
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let deduction_sec37 = getVal("deduction_sec37_disallowance");
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let deduction_80g = getVal("deduction_80g");
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// Total Deduction
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let total_deductions = d80_business + deduction_sec37;
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// Net Taxable Income
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let net_taxable_income =
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(gross_total_income + disallowance_14a + disallowance_37)
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- total_deductions
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- deduction_80g;
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setVal("net_taxable_income", net_taxable_income);
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// Tax @ 30%
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let tax_30_percent = net_taxable_income * 0.30;
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setVal("tax_30_percent", tax_30_percent);
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// Surcharge @ 12%
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let surcharge_12 = tax_30_percent * 0.12;
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setVal("surcharge_12", surcharge_12);
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// Education Cess @ 3%
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let edu_cess_3 = (tax_30_percent + surcharge_12) * 0.03;
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setVal("edu_cess_3", edu_cess_3);
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// Total Tax Payable
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let total_tax_payable = tax_30_percent + surcharge_12 + edu_cess_3;
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setVal("total_tax_payable", total_tax_payable);
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// MAT, Interest
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let mat_credit = getVal("mat_credit");
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let interest_234c = getVal("interest_234c");
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let total_tax = total_tax_payable + mat_credit + interest_234c;
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setVal("total_tax", total_tax);
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// Advance, TDS, TCS
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let advance_tax = getVal("advance_tax");
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let tds = getVal("tds");
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let tcs = getVal("tcs");
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let tax_on_assessment = advance_tax + tds + tcs;
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setVal("tax_on_assessment", tax_on_assessment);
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// Refund / Payablesss
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let refund = total_tax - tax_on_assessment;
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setVal("refund", refund);
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};
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});
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