Income Tax Calculator
Estimate your income tax under both the new and old tax regimes side by side, including Section 87A marginal relief, surcharge slabs, and a detailed old-regime deduction breakdown (80C, 80D, NPS, home loan interest, HRA).
Deductible under both regimes, up to ~14% of basic salary
Old-regime-only deductions
ELSS, PPF, life insurance — capped at ₹1.5L
Capped at ₹75K (varies with age)
Additional self NPS — capped at ₹50K
Self-occupied — capped at ₹2L
Use the HRA Calculator to work this out
80G, 80TTA/TTB, etc.
New regime (lower tax)
Old regime
Tax breakdown — new vs old
What is Income Tax Calculator?
Income Tax Calculator compares your tax liability under the New and Old Tax Regimes side by side based on commonly published FY 2025-26 (AY 2026-27) slabs following Budget 2025. It evaluates Section 87A rebate eligibility (up to ₹12 Lakhs taxable income under the new regime), marginal relief on rebate cliffs, standard deduction (₹75,000 for new regime, ₹50,000 for old regime), employer NPS under 80CCD(2), and deductions under Sections 80C, 80D, 80CCD(1B), and 24(b).
How to use Income Tax Calculator
- 1Enter your gross annual salary or income, along with any employer NPS contribution under Section 80CCD(2).
- 2If comparing the old regime, enter eligible deductions: Section 80C, 80D health insurance, self NPS, home loan interest, and HRA exemption.
- 3Review the side-by-side breakdown showing taxable income, effective tax rate, net take-home salary, and which regime yields lower tax.
Key features
New vs Old Regime Comparison
Side-by-side computation of taxable income, base slab tax, rebate, surcharge, cess, and net take-home pay.
Section 87A & Marginal Relief
Accurately calculates zero tax up to ₹12.75L gross under the new regime and smooths the tax cliff above ₹12L.
Comprehensive Old-Regime Deductions
Models statutory caps for 80C (₹1.5L), 80D (₹75k), NPS 80CCD(1B) (₹50k), and Section 24b home loan interest (₹2L).
High-Income Surcharge & Cess
Includes 10% to 25%/37% surcharge brackets with surcharge marginal relief plus mandatory 4% Health & Education Cess.
Examples & use cases
Middle Income Scenario (Zero Tax under New Regime)
Gross annual income of ₹12,75,000 with standard deduction
Gross Income: ₹12,75,000 | Regime: New | Deductions: Standard Deduction (₹75,000)
Taxable Income: ₹12,00,000 | Base Tax: ₹60,000 | 87A Rebate: ₹60,000 | Total Tax: ₹0 | Take-Home: ₹12,75,000
Higher Income Comparison Scenario
Gross annual income of ₹15,00,000 with ₹4,75,000 old-regime deductions
Gross Income: ₹15,00,000 | Deductions: 80C (₹1.5L), 80D (₹25k), NPS (₹50k), Home Loan (₹2L), Std Ded
New Regime Tax: ₹97,500 (Effective Rate: 6.5%) vs Old Regime Tax: ₹1,24,800 (Effective Rate: 8.32%) — New regime saves ₹27,300
Frequently asked questions
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