Income Tax Calculator (India)
The Income Tax Calculator for India computes your tax liability for FY 2024-25 under the new tax regime (default) and old tax regime. The new regime offers lower slab rates with a standard deduction of ₹75,000, while the old regime allows deductions under sections 80C, 80D, HRA, and more.
Educational estimate. Calculator results are for planning and information only, not financial, tax, medical, legal, or engineering advice. Verify important decisions with official sources or a qualified professional.
Income Tax Calculator (India)
FY 2024-25 — New & Old Regime Comparison
📐 Formula & Method
New Regime Tax Slabs (FY 2024-25)
Standard deduction ₹75,000 applies. Rebate u/s 87A: no tax if net taxable income ≤ ₹7 lakh.
Health & Education Cess
Applicable on all assessees.
📋 How to Use
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1
Enter your gross annual income.
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2
Select your age bracket.
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3
Choose tax regime (New regime is default from FY 2023-24).
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4
Click Calculate to see total tax, effective rate, and in-hand income.
New vs Old Tax Regime — Which is Better for You?
The new tax regime introduced in FY 2020-21 and made default from FY 2023-24 offers lower slab rates but eliminates most deductions and exemptions. The old regime retains deductions under Section 80C (up to ₹1.5 lakh), 80D (health insurance), HRA, LTA, and home loan interest under Section 24B.
For salaried employees, the new regime now includes a standard deduction of ₹75,000 (increased from ₹50,000 in Budget 2024). The rebate under Section 87A was enhanced — if your net taxable income under the new regime is ₹7 lakh or less, you pay zero tax.
The crossover point where the new regime becomes better than old depends on your deductions. As a rule of thumb: if your total deductions exceed ₹3.75 lakh (for income above ₹15L), the old regime may save more tax. Use this calculator to compare both scenarios.
🔬 Methodology & Accuracy
Formula: Uses the standard mathematical formula shown in the Formula & Method section above. All computations run client-side in your browser — no data is sent to our servers.
Data sources: Tax bands, contribution limits and regulatory rates are taken from official US (IRS, SSA) and UK (HMRC, gov.uk) publications for the current tax year, and updated when bands change.
Last reviewed: June 2026 · Accuracy: Results are precise to two decimal places using IEEE-754 double-precision arithmetic. Intended for educational and planning use only.
For informational purposes only. Results are estimates based on the inputs and formulas provided. For financial, tax, medical, or legal decisions, consult a qualified professional. Rates and regulations change — always verify current figures with official sources.