119 lines
4.2 KiB
JavaScript
119 lines
4.2 KiB
JavaScript
document.addEventListener("DOMContentLoaded", function () {
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function getValue(id) {
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var el = document.getElementsByName(id)[0];
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return el ? parseFloat(el.value) || 0 : 0;
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}
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function setValue(id, val) {
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var el = document.getElementsByName(id)[0];
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if (el) el.value = Number(val).toFixed(2);
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}
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window.calculate = function () {
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// --- BASIC INPUTS ---
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var gross_total_income = getValue("gross_total_income");
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var disallowance_14a = getValue("disallowance_14a");
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var disallowance_37 = getValue("disallowance_37");
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// -- total gross income --
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var gross_total = gross_total_income + disallowance_37 + disallowance_14a
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setValue("gti_as_per_ao", gross_total);
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// --- DEDUCTIONS ---
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var d80_business = getValue("deduction_80ia_business");
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var d80_misc = getValue("deduction_80ia_misc");
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var d80_other = getValue("deduction_80ia_other");
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var d80_sec37 = getValue("deduction_sec37_disallowance");
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var deduction = d80_business + d80_misc + d80_other + d80_sec37 - 1.35;
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var deduction_80g = getValue("deduction_80g");
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// --- NET TAXABLE INCOME ---
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var net_taxable_income = gross_total - deduction - deduction_80g;
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setValue("net_taxable_income", net_taxable_income);
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// ----------------------- TAX A% ---------------------
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var per_a = getValue("per_a");
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var tax30 = net_taxable_income * (per_a / 100);
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setValue("tax_30_percent", tax30);
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var per_surcharge_a = getValue("per_surcharge_a");
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var surcharge_a = tax30 * (per_surcharge_a / 100);
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setValue("surcharge_a", surcharge_a);
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var per_cess_a = getValue("per_cess_a");
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var edu_cess_a = (tax30 + surcharge_a) * (per_cess_a / 100);
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setValue("edu_cess_a", edu_cess_a);
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var sum_of_a = tax30 + surcharge_a + edu_cess_a;
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setValue("sum_of_a", sum_of_a);
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// -------------------- TAX PAYABLE B% (18.5%) ---------------------------
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var tax185 = getValue("tax_book_profit_18_5");
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var per_surcharge_b = getValue("per_surcharge_b");
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var surcharge_b = tax185 * (per_surcharge_b / 100);
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setValue("surcharge_b", surcharge_b);
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var per_cess_b = getValue("per_cess_b");
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var edu_cess_b = (tax185 + surcharge_b) * (per_cess_b / 100);
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setValue("edu_cess_b", edu_cess_b);
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var sum_of_b = tax185 + surcharge_b + edu_cess_b;
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setValue("sum_of_b", sum_of_b);
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// --- Tax Payable (Higher of A or B): ---
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var tax_payable = (tax30 > tax185) ? tax30 : tax185;
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setValue("tax_payable", tax_payable);
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// ---- total_tax_payable ----
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var total_tax_payable = (tax30 > tax185) ? sum_of_a : sum_of_b;
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setValue("total_tax_payable", total_tax_payable);
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// --- mat_credit_created --- new
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// setValue("mat_credit_created", Math.max(tax185 - total_tax_payable, 0));
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// // --- mat credit_utilized --- new
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// setValue("mat_credit_utilized", Math.max(total_tax_payable - tax185, 0));
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// --- mat credit_utilized ---
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var a = sum_of_a
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var b = sum_of_b
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var result = 0
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var zero = 0
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if (a < b) {
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result = b - a
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setValue("mat_credit_created", result);
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setValue("mat_credit_utilized", zero);
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}
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else {
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result = a - b
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setValue("mat_credit_utilized", result);
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setValue("mat_credit_created", zero);
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}
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// --- FINAL TAX ---
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var mat_credit_utilized = getValue("mat_credit_utilized");
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var interest_234c = getValue("interest_234c");
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// var total_tax = total_tax_payable + mat_credit + interest_234c;
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var total_tax = total_tax_payable + interest_234c - mat_credit_utilized;
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setValue("total_tax", total_tax);
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// --- ASSESSMENT ---
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var adv_tax = getValue("advance_tax");
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var tds = getValue("tds");
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var tcs = getValue("tcs");
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var tax_on_regular_assessment = getValue("tax_on_assessment");
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var all_tax = adv_tax + tds + tcs + tax_on_regular_assessment;
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var refund = total_tax - all_tax;
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setValue("refund", refund);
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};
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});
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