SALARY Calculator

Standalone, zero-dependency JavaScript implementation powering this tool. Free to inspect, copy, and build upon.

function fmt(n) { return Math.round(n).toLocaleString('en-IN'); }
  function fmtRs(n) { return '₹' + fmt(n); }

  function calcTax(taxableIncome) {
    // New Regime 2024-25 with standard deduction of 75000
    const ti = Math.max(0, taxableIncome - 75000);
    const slabs = [
      [300000, 0], [400000, 0.05], [700000, 0.10], [1000000, 0.15], [1200000, 0.20], [1500000, 0.25], [Infinity, 0.30]
    ];
    let tax = 0, prev = 0;
    for (const [limit, rate] of slabs) {
      if (ti <= prev) break;
      const taxable = Math.min(ti, limit) - prev;
      tax += taxable * rate;
      prev = limit;
    }
    // Rebate u/s 87A: if taxable income <= 7L, no tax
    if (ti <= 700000) tax = 0;
    const cess = tax * 0.04;
    return tax + cess;
  }

  function calc() {
    const ctc = parseFloat(document.getElementById('inp-ctc').value) || 0;
    const basic = ctc * 0.50;
    const hra = basic * 0.50;
    const epfEmployer = Math.min(basic * 0.12, 21600);
    const specialAllowance = ctc - basic - hra - epfEmployer;

    const epfEmployee = Math.min(basic * 0.12, 21600);
    const profTax = 2400;
    const taxableIncome = ctc - epfEmployer;
    const incomeTax = calcTax(taxableIncome);

    const totalDeductions = epfEmployee + profTax + incomeTax;
    const annualInHand = ctc - epfEmployer - totalDeductions;
    const monthlyInHand = annualInHand / 12;

    document.getElementById('val-monthly').textContent = fmtRs(monthlyInHand);
    document.getElementById('val-annual-inhand').textContent = fmtRs(annualInHand);
    document.getElementById('val-total-deductions').textContent = fmtRs(totalDeductions);

    document.getElementById('earnings-table').innerHTML = [
      ['Basic Salary', basic], ['HRA', hra], ['Special Allowance', specialAllowance], ['Employer PF', epfEmployer]
    ].map(([l, v]) => `<tr class="earning"><td>${l}</td><td>${fmtRs(v / 12)}/mo</td><td>${fmtRs(v)}/yr</td></tr>`).join('');

    document.getElementById('deductions-table').innerHTML = [
      ['Employee PF', epfEmployee], ['Professional Tax', profTax], ['Income Tax (New Regime)', incomeTax]
    ].map(([l, v]) => `<tr class="deduction"><td>${l}</td><td>-${fmtRs(v / 12)}/mo</td><td>-${fmtRs(v)}/yr</td></tr>`).join('')
    + `<tr class="total"><td>Net In-Hand</td><td>${fmtRs(monthlyInHand)}/mo</td><td>${fmtRs(annualInHand)}/yr</td></tr>`;
  }

  document.getElementById('inp-ctc').addEventListener('input', calc);
  calc();