Income Tax Calculator
New regime FY 2025-26 (India)
Quick Answer — Income Tax FY 2025-26
Under the New Tax Regime, income up to ₹12 Lakh (₹12.75L for salaried with standard deduction) is effectively tax-free thanks to Section 87A rebate. Above that, rates are: 5% (3-7L), 10% (7-10L), 15% (10-12L), 20% (12-15L), and 30% (above 15L).
Maintained by: Sagar Sahni, Calc Labz | Review: formula checks, worked examples, and periodic updates
Use with care: Finance and tax outputs are planning estimates only and should be checked against current rules.
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Formula & Worked Example
The math behind the Income Tax Calculator
Mathematical Formula
Tax = \sum_{i=1}^{k} (Slab_i \times Rate_i) - Rebate_{87A} + Surcharge + CessStep-by-Step Worked Example
Frequently Asked Questions
Common questions about the Income Tax Calculator
What is the income tax exemption limit for FY 2025-26?
What is the standard deduction for salaried employees?
How is surcharge calculated on income tax?
Do I need to file ITR if my income is below the taxable limit?
What deductions are available under the New Tax Regime?
What is the Income Tax Calculator?
The Income Tax Calculator computes your tax liability under the New Tax Regime for FY 2025-26 (AY 2026-27) as per the latest Union Budget. It factors in the standard deduction, rebate under Section 87A, surcharge, and health & education cess. Get an instant breakdown of your tax slab-wise computation.
How to Use the Income Tax Calculator
- Enter Annual Income: Enter your annual income in Indian Rupees (₹) in the input field. The calculator will validate your input automatically.
- View Your Results: The Income Tax Calculator displays your results instantly in the output panel. You will see the primary result along with a detailed breakdown of secondary outputs. Scroll down for charts, interpretations, and expert advice.
Key Features
- Instant Income Tax calculations with real-time updates
- No signup, no registration — 100% free forever
- All calculations happen in your browser — zero data sent to servers
- Works offline as a Progressive Web App (PWA)
- Mobile-friendly responsive design
- Verified financial formulas updated for 2026
Why Use Calc Labz Income Tax Calculator?
The Calc Labz Income Tax Calculator stands out because it combines accuracy with simplicity. Unlike other online calculators, we provide detailed breakdowns, step-by-step formulas, and actionable advice alongside your results. Our financial calculators are regularly updated to reflect current rates, rules, and standards for India (2026). Whether you are a student, professional, or just need a quick calculation — Calc Labz delivers reliable results instantly.
Key Terms & Glossary
- Principal
- The original amount of money borrowed or invested, before any interest is applied.
- Interest Rate
- The percentage charged on borrowed money or earned on invested money, usually expressed per annum.
- Compound Interest
- Interest calculated on both the initial principal and previously accumulated interest — "interest on interest."
- Amortization
- The process of spreading loan repayment into equal installments over a fixed period.
- Maturity
- The date on which a financial instrument (FD, bond, PPF) reaches its full term and the principal is returned.
- CAGR
- Compound Annual Growth Rate — the smoothed annual rate of return on an investment over a specified period.
Sources & References
Our Income Tax Calculator uses formulas and guidelines from the following authoritative sources: