Income Tax Calculator (India) - New vs Old Regime

📊

Indian Income Tax Estimator

📅 Financial Year

👥 Tax Regime

💵 Income

💲 Salary Income Annual salary income before tax (₹)

📈 Other Income Interest, rental, freelance, and other taxable income (₹)

📊 Section 80C (Old Regime) Typically capped at ₹1,50,000 (PPF/EPF/ELSS/life insurance principal etc.)

💳 TDS / Advance Tax Paid Total tax already paid during the year (₹)

📋 Deductions

📋 Standard Deduction Auto-filled by regime and financial year.

🏥 Section 80D (Old Regime) Medical insurance premium deduction (enter eligible amount)

🏦 Section 80CCD(1B) NPS (Old Regime) Additional NPS deduction, typically up to ₹50,000

💜 Other Eligible Deductions (Old Regime)

🏠 Home Loan Interest (Section 24, Old Regime) For self-occupied house, generally up to ₹2,00,000 (subject to conditions)

💳 Additional Old Regime Deductions

💰 Your Tax Summary

Total Tax Liability
₹0

Effective Tax Rate

Highest Slab Used

Income After Tax

₹0

Net Payable / Refund

₹0

Taxable Income

₹0

💡 Summary

📋 Bracket-by-Bracket Breakdown

Rate	Slab Range	Taxable in Bracket	Tax from Bracket	Portion Used

📚 How Indian Income Tax Slabs Work

India also uses a progressive tax system. Your taxable income is split into slabs, and each slab is taxed at its corresponding rate:

Lower slab portions are taxed at lower rates (or nil rate).
Higher slab portions are taxed at progressively higher rates.
Tax rebate under Section 87A may reduce tax to zero if taxable income is within the eligible limit.

Your highest slab rate is the rate of your last slab portion, while your effective rate is total tax divided by gross income. Effective rate is usually lower than the top slab rate.

🧮 FY 2025-26 Slab Snapshot

Indicative slab structure used by this calculator for resident individuals:

New Regime (FY 2025-26)

Rate	Taxable Income Range
0%	₹0 – ₹4,00,000
5%	₹4,00,001 – ₹8,00,000
10%	₹8,00,001 – ₹12,00,000
15%	₹12,00,001 – ₹16,00,000
20%	₹16,00,001 – ₹20,00,000
25%	₹20,00,001 – ₹24,00,000
30%	Above ₹24,00,000

Old Regime

Rate	Taxable Income Range
0%	₹0 – ₹2,50,000
5%	₹2,50,001 – ₹5,00,000
20%	₹5,00,001 – ₹10,00,000
30%	Above ₹10,00,000

🧪 Tax Calculation Formula (Simplified)

Tax = Σ (Income in Slab_i) × Rate_i − Rebate

Taxable Income = Gross Income − Allowed Deductions − Standard Deduction

Tax = Income tax before cess

Rate_i = Applicable slab rate for slab i

Rebate = Section 87A rebate where eligible

❓ Income Tax FAQ (India)

What’s the difference between highest slab rate and effective tax rate?

Your highest slab rate is the rate on the top slab portion of your taxable income. Your effective tax rate is total tax liability divided by total gross income, so it is usually lower.

Which deductions are considered here?

This calculator includes standard deduction and common old-regime deductions entered by you (such as 80C/80D/NPS/Section 24). It is an educational estimator; always validate deduction eligibility and limits with current CBDT/Income Tax Department rules.

Does this include surcharge and special income rates?

This version is focused on slab tax, Section 87A rebate, and 4% health & education cess. It does not model surcharge, capital-gains special rates, agricultural income integration, or AMT.

Is Section 87A rebate applied automatically?

Yes. If your taxable income is within the configured rebate threshold for the selected regime and year, rebate is applied up to the allowable amount, and then cess is computed on post-rebate tax.

Does this replace filing on the Income Tax portal?

No. This is an educational estimate to help with planning. Final liability should be validated while filing your return (ITR) with complete income heads, exemptions, deductions, set-offs, and statutory disclosures.