How to Calculate Income Tax

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Based on the new tax rates from the 2025 Indian Budget, here’s a simple guide to calculate your income tax if your annual income is Rs 10 lakh.

New Tax Rates for FY 2025-26

Annual Income Tax Rate
Rs 0 – 4 lakh NIL
Rs 4 – 8 lakh 5%
Rs 8 – 12 lakh 10%
Rs 12 – 16 lakh 15%
Rs 16 – 20 lakh 20%
Rs 20 – 24 lakh 25%
Above Rs 24 lakh 30%
 Example Calculation for Rs 10 Lakh
  1. Income up to Rs 4 lakh: No tax

  2. Income from Rs 4 lakh to Rs 8 lakh: 5% of Rs 4 lakh = Rs 20,000

  3. Income from Rs 8 lakh to Rs 10 lakh: 10% of Rs 2 lakh = Rs 20,000

Total Tax Payable: Rs 20,000 (from slab 2) + Rs 20,000 (from slab 3) = Rs 40,000

So, if your annual income is Rs 10 lakh, your total tax payable is Rs 40,000 under the new tax rates.

Including Deductions (Optional)

If you have common deductions such as:

  • Section 80C: Up to Rs 1.5 lakh for investments (like PPF, NSC, ELSS)

  • Section 80D: Up to Rs 25,000 for health insurance premiums

  • House Rent Allowance (HRA)

  • Medical Allowance

Let’s assume:

  • Rs 1.5 lakh under 80C

  • Rs 25,000 under 80D

  • Rs 15,000 HRA

Total Deductions: Rs 1.5 lakh + Rs 25,000 + Rs 15,000 = Rs 1.9 lakh

Taxable Income: Rs 10 lakh – Rs 1.9 lakh = Rs 8.1 lakh

Revised Tax Calculation:

  1. Income up to Rs 4 lakh: No tax

  2. Income from Rs 4 lakh to Rs 8 lakh: 5% of Rs 4 lakh = Rs 20,000

  3. Income from Rs 8 lakh to Rs 8.1 lakh: 10% of Rs 10,000 = Rs 1,000

Total Tax Payable after Deductions: Rs 20,000 (from slab 2) + Rs 1,000 (from slab 3) = Rs 21,000

So, if your annual income is Rs 10 lakh and you have deductions amounting to Rs 1.9 lakh, your total tax payable is Rs 21,000 under the new tax rates.

Key Points to Remember

  • The tax is calculated by applying the tax rate to the income within each slab.

  • Deductions can help reduce the taxable income, thereby lowering the tax liability.

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