CalcBit.
TaxUpdated 2026-06-15

Income Tax Calculator

Calculate your income tax under New and Old tax regimes. Free tax calculator for FY 2025-26 with 80C deductions and 87A rebate.

Income Tax Calculator

Compare Old vs New tax regimes for FY 2025-26

Include salary, interest, and other sources

Applies only to Old Tax Regime

Smart Recommendation

Switch to New Regime

You will save ₹1,32,600 in taxes annually.

New Regime

Recommended

Total Tax Payable

₹93,600

Effective Rate

6.24%

Standard Ded.

₹1,00,000

Old Regime

Total Tax Payable

₹2,26,200

Effective Rate

15.08%

Exemptions

₹2,00,000

Filing Tips for FY 2025-26

1

No Tax up to ₹12L

Under the New Tax Regime for FY 2025-26, salaried individuals with taxable income up to ₹12,00,000 pay zero income tax due to tax rebates.

2

Higher Std. Deduction

The standard deduction for salaried individuals and pensioners has been increased to ₹1,00,000 in the New Tax Regime (Budget 2025).

3

New Regime is Default

The New Tax Regime remains the default choice. If you wish to claim deductions like 80C or 24(b), you must explicitly opt for the Old Regime.

What is Income Tax Calculator?

An Income Tax Calculator helps you estimate your tax liability under both New and Old tax regimes. It considers your income, deductions, and applicable tax slabs to provide accurate tax calculations for FY 2025-26.

How It Works

The calculator subtracts applicable deductions from your gross income to arrive at taxable income. It then applies the relevant tax slab rates and adds 4% health and education cess to compute total tax liability.

Formula & Calculation Method

Tax = Sum of slab-wise calculations + 4% cess

Tax is calculated progressively: income within each slab is taxed at the applicable rate, then 4% health and education cess is added to the total tax.

Examples

New Regime - ₹12 Lakh Salary

1Gross income: ₹12,00,000

2Standard deduction: ₹75,000

3Taxable income: ₹11,25,000

4Up to ₹4L: Nil

5₹4L-8L (5%): ₹20,000

6₹8L-11.25L (10%): ₹32,500

7Total tax before rebate: ₹52,500

8Section 87A rebate: ₹52,500

9Final tax: ₹0

Tax Payable: ₹0

New Regime - ₹20 Lakh Salary

1Gross income: ₹20,00,000

2Standard deduction: ₹75,000

3Taxable income: ₹19,25,000

4Up to ₹4L: Nil

5₹4L-8L: ₹20,000

6₹8L-12L: ₹40,000

7₹12L-16L: ₹60,000

8₹16L-19.25L: ₹65,000

9Total tax: ₹1,85,000

10Cess 4%: ₹7,400

11Final tax: ₹1,92,400

Tax Payable: ₹1,92,400

Benefits

  • 1
    Compare New vs Old regime instantly
  • 2
    Plan tax-saving investments
  • 3
    Avoid last-minute tax surprises
  • 4
    Optimize your tax liability
  • 5
    Understand tax slab impact

Common Use Cases

Salary tax planningFreelancer tax estimationInvestment tax optimizationRetirement tax planningHRA exemption calculation

Expert Tips

  • 1
    Start tax planning at the beginning of the financial year
  • 2
    Maximize 80C deductions up to ₹1.5 lakh
  • 3
    Compare regimes before choosing
  • 4
    Invest in ELSS for 80C benefits with growth potential
  • 5
    File ITR before the due date to avoid penalties

Common Mistakes to Avoid

  • !
    Not claiming all eligible deductions
  • !
    Choosing wrong tax regime
  • !
    Ignoring 80C investment deadline
  • !
    Not reporting all income sources
  • !
    Missing tax-saving investment deadlines

Frequently Asked Questions

Find answers to common questions about this calculator below.

Income tax in India is calculated based on progressive tax slabs. Under the New Regime (FY 2025-26), income up to ₹4 lakh is exempt, 5% for ₹4-8 lakh, 10% for ₹8-12 lakh, 15% for ₹12-16 lakh, 20% for ₹16-20 lakh, and 30% above ₹20 lakh. The Old Regime has different slabs with higher exemptions.

The New Regime (with lower rates but fewer deductions) is generally better if you have limited investments. The Old Regime (higher rates but more deductions) is better if you claim significant deductions under 80C, 80D, HRA, etc. Use our calculator to compare both regimes.

Under the New Regime (FY 2025-26), taxable income of ₹12 lakh has zero tax due to the rebate under Section 87A. Under the Old Regime, with standard deduction and 80C deductions, tax may vary from ₹50,000 to ₹1,00,000 depending on your investments.

Section 87A provides a tax rebate of up to ₹25,000 (or the total tax amount, whichever is lower) for individuals with taxable income up to ₹12 lakh under the New Regime (FY 2025-26). For the Old Regime, the rebate is available for income up to ₹5 lakh.

Section 80C allows deductions up to ₹1.5 lakh for investments in PPF, EPF, ELSS mutual funds, life insurance premiums, NSC, tax-saving FDs, Sukanya Samriddhi Yojana, and home loan principal repayment.

Under the New Regime FY 2025-26, on ₹15 lakh salary (after standard deduction of ₹75,000), taxable income is ₹14,25,000. Tax = ₹1,23,750 + 4% cess = ₹1,28,700. Under Old Regime with maximum deductions, it could be lower.

Standard deduction of ₹75,000 is available for salaried individuals under both New and Old tax regimes for FY 2025-26. This is a flat deduction from gross salary.

HRA exemption is the minimum of: (1) Actual HRA received, (2) Rent paid minus 10% of salary, (3) 50% of salary for metro cities (40% for non-metros). HRA can only be claimed under the Old Tax Regime.

Short-term capital gains (holding < 12 months for listed shares) are taxed at 15%. Long-term capital gains (holding > 12 months) above ₹1 lakh are taxed at 10%. For other assets, LTCG is taxed at 20% with indexation benefit.

Income tax return filing is mandatory if your gross income exceeds ₹2.5 lakh (₹3 lakh for senior citizens, ₹5 lakh for super senior citizens). However, filing a nil return is recommended even if income is below the taxable limit to maintain a clean tax record.