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FY 2025-26 · AY 2026-27

Income Tax Calculation Step by Step — India FY 2025-26

From gross salary to final tax payable — the complete calculation process with real numbers. Both Old and New Regime covered with a worked example.

✓ New Regime — Lower Rates
Old Regime — More Deductions

The 6 Steps to Calculate Your Income Tax

Indian income tax follows a fixed sequence. Here's the exact order — skip a step and you'll get the wrong number:

StepWhat You Do
Step 1Add all income sources → Gross Total Income
Step 2Subtract standard deduction + eligible deductions → Taxable Income
Step 3Apply slab rates to taxable income → Base Tax
Step 4Apply Section 87A rebate if eligible → Tax After Rebate
Step 5Add surcharge if total income > ₹50L → Tax + Surcharge
Step 6Add 4% cess on (tax + surcharge) → Final Tax Payable

Full Example: ₹14 Lakh Salary — New Tax Regime

StepAmount
Gross Salary₹14,00,000
Standard Deduction (New Regime)− ₹75,000
Taxable Income₹13,25,000
Tax on ₹0–₹4,00,000 (0%)₹0
Tax on ₹4,00,001–₹8,00,000 (5%)₹20,000
Tax on ₹8,00,001–₹12,00,000 (10%)₹40,000
Tax on ₹12,00,001–₹13,25,000 (15%)₹18,750
Base Tax₹78,750
Section 87A Rebate (taxable income > ₹12L — not eligible)₹0
Surcharge (income < ₹50L)₹0
Cess (4% on ₹78,750)₹3,150
Final Tax Payable₹81,900

Same Salary Under Old Tax Regime (No Investments)

StepAmount
Gross Salary₹14,00,000
Standard Deduction (Old Regime)− ₹50,000
Taxable Income₹13,50,000
Tax on ₹0–₹2,50,000 (0%)₹0
Tax on ₹2,50,001–₹5,00,000 (5%)₹12,500
Tax on ₹5,00,001–₹10,00,000 (20%)₹1,00,000
Tax on ₹10,00,001–₹13,50,000 (30%)₹1,05,000
Base Tax₹2,17,500
Cess (4%)₹8,700
Final Tax Payable₹2,26,200
✓ Verdict at ₹14L Salary

New Regime saves ₹1,44,300 at ₹14L salary without any investments. The Old Regime needs over ₹4 lakh in combined deductions to come close. For most salaried people without home loan interest or large HRA, the New Regime wins clearly at this income level.

⚠ Remember: All Income Sources Count

Tax is calculated on income from all sources — salary, FD interest, rent received, freelance income. Many people forget to add bank interest and rental income, then face a surprise during ITR filing. Always total all income before assuming you're in the zero-tax zone.

💡 The Rebate Cliff at ₹12L

If your taxable income is ₹12L or below, the 87A rebate makes tax ₹0. Cross ₹12L by ₹1 and you owe ~₹83,200. This is why keeping taxable income at or below ₹12L is a major planning priority for salaried Indians in FY 2025-26. Check our Tax Calculator to see your exact position.

Calculate Your Exact Tax in 30 Seconds

Skip the manual steps — enter your salary and deductions and get the precise result instantly.

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Frequently Asked Questions

Gross income → subtract standard deduction and other eligible deductions → apply slab rates → check 87A rebate → add surcharge if income > ₹50L → add 4% cess. The result is your final tax. Use our Tax Calculator to do this automatically in seconds.
₹0–4L: 0% | ₹4–8L: 5% | ₹8–12L: 10% | ₹12–16L: 15% | ₹16–20L: 20% | ₹20–24L: 25% | Above ₹24L: 30%. Section 87A rebate makes effective tax ₹0 for taxable income up to ₹12L. Add 4% cess on total tax after rebate.
New Regime: ₹14L minus ₹75,000 standard deduction = ₹13.25L taxable. Tax = ₹78,750 + 4% cess = ₹81,900. Old Regime without deductions: ₹2,26,200. New Regime saves ₹1,44,300 at this income level.
Gross income is everything you earn — salary, rent, interest, freelance. Taxable income is what remains after subtracting the standard deduction, HRA exemption (Old Regime only), 80C investments, and other eligible deductions. Tax is calculated only on taxable income, not gross income.
Cess is 4% on total tax — always applies. Surcharge is an extra levy for high incomes: 10% above ₹50L, 15% above ₹1Cr, 25% above ₹2Cr. Under New Regime, surcharge is capped at 25%. Cess is charged on (base tax + surcharge) combined.

Explore Related Tax Guides

Now that you understand the full calculation process, explore the individual components: