Income Tax Calculator — Know Your Tax Before the Government Tells You
Calculate your income tax liability under both old and new tax regimes. Compare regimes and estimate take-home salary for FY 2025-26.
Tax season arrives the same time every year, yet it always feels like a surprise. The CalcHub Income Tax Calculator lets you figure out your tax liability well in advance — not just at filing time, but whenever your salary changes, you make a new investment, or you're deciding between the old and new tax regimes.
Old Regime vs New Regime: The Big Choice
Since FY 2020-21, Indian taxpayers have had a choice: the old regime (with deductions) or the new regime (lower rates, fewer deductions). From FY 2023-24 onward, the new regime is the default.
New regime tax slabs (FY 2025-26):| Income Range | Tax Rate |
|---|---|
| Up to ₹3,00,000 | Nil |
| ₹3,00,001 – ₹7,00,000 | 5% |
| ₹7,00,001 – ₹10,00,000 | 10% |
| ₹10,00,001 – ₹12,00,000 | 15% |
| ₹12,00,001 – ₹15,00,000 | 20% |
| Above ₹15,00,000 | 30% |
How to Use the Tax Calculator
- Enter gross annual income — CTC or total annual earnings before deductions
- Select financial year — for the correct slabs
- Choose regime — old or new (or compare both)
- Enter deductions (old regime only) — 80C, 80D, HRA, LTA, etc.
- Calculate — see taxable income, tax liability, surcharge if applicable, and effective tax rate
Which Regime Works Better? A Comparison
For a ₹12,00,000 gross annual salary:
| New Regime | Old Regime | |
|---|---|---|
| Standard deduction | ₹75,000 | ₹50,000 |
| 80C deduction | Not available | ₹1,50,000 |
| 80D (health ins.) | Not available | ₹25,000 |
| Taxable income | ₹11,25,000 | ₹9,75,000 |
| Tax liability | ~₹1,31,250 | ~₹1,02,500 |
Things That Affect Your Final Tax
Standard deduction: ₹75,000 in the new regime for FY 2025-26 (up from ₹50,000 in the old regime). Applied automatically — you don't need to claim it. Professional tax: Usually ₹2,400/year, deductible in old regime. Surcharge: Applies if income exceeds ₹50 lakh. 10% surcharge on the tax amount for income between ₹50L-1Cr, 15% above ₹1 Cr. Health and Education Cess: 4% on total tax + surcharge. Always applies.When does the old regime make more sense?
When you have significant deductions — home loan interest, maxed 80C, 80D, and HRA. If your deductions exceed roughly ₹3.75-4 lakh (depending on income), the old regime typically saves more. Run both scenarios in the calculator to see the crossover point for your situation.
Should I declare my regime at the start of the year?
Yes. Your employer needs your regime declaration to deduct the correct TDS monthly. If you don't declare, they default to the new regime (from FY 2023-24). You can switch at filing time if you have business income restrictions apply, so check the rules for your income type.
Is advance tax relevant for salaried employees?
If your employer is deducting TDS correctly, probably not. But if you have income from freelancing, interest, rent, or capital gains, and your total tax liability after TDS exceeds ₹10,000 in a year, you need to pay advance tax in quarterly installments to avoid interest penalties.