Income Tax Calculator (Old Regime)
Old-regime tax with 80C, 80D, HRA and home-loan deductions — the regime that still wins for deduction-heavy filers.
Formula
The old regime survives for those who max deductions — 80C (₹1.5L) + 80D + HRA + ₹2L home-loan interest can shelter ₹4-5L, tipping the balance. Run both regimes every year; the crossover depends entirely on your deduction stack, and the optimal choice can flip as your rent or loan changes.
Surcharge above ₹50L not modeled. Not tax advice. Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Need income tax calculator results fast? Analysts, founders, traders and finance professionals use the Income Tax Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About Income Tax Calculator (Old Regime)
Old-regime tax with 80C, 80D, HRA and home-loan deductions — the regime that still wins for deduction-heavy filers. The old regime survives for those who max deductions — 80C (₹1.5L) + 80D + HRA + ₹2L home-loan interest can shelter ₹4-5L, tipping the balance. Run both regimes every year; the crossover depends entirely on your deduction stack, and the optimal choice can flip as your rent or loan changes. The governing relationship is old slabs (0/5/20/30%) on income after 80C/80D/HRA/24b + standard deduction. The Income Tax Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use Income Tax Calculator (Old Regime)
- 1Enter Gross annual income (₹), 80C investments (₹), 80D health insurance (₹), HRA exemption (₹), Home loan interest (24b) (₹) into the Income Tax Calculator.
- 2The result is computed automatically using old slabs (0/5/20/30%) on income after 80C/80D/HRA/24b + standard deduction — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use Income Tax Calculator (Old Regime)?
- ✓Computes income tax calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the Income Tax Calculator?+
Income Tax Calculator uses old slabs (0/5/20/30%) on income after 80C/80D/HRA/24b + standard deduction. The old regime survives for those who max deductions — 80C (₹1. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the Income Tax Calculator need?+
Enter Gross annual income (₹), 80C investments (₹), 80D health insurance (₹), HRA exemption (₹), Home loan interest (24b) (₹) and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the Income Tax Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. Surcharge above ₹50L not modeled. Not tax advice. It is for informational and analytical use, not financial advice.
What should I watch out for when using the Income Tax Calculator?+
5L) + 80D + HRA + ₹2L home-loan interest can shelter ₹4-5L, tipping the balance. Run both regimes every year; the crossover depends entirely on your deduction stack, and the optimal choice can flip as your rent or loan changes.
What is the Income Tax Calculator based on?+
The method follows authoritative sources: Income-tax Act — old regime slabs, Chapter VI-A. The formula and references are shown on the page so you can verify and cite the result.
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