Income Tax Calculator (FY 2026-27 Current & FY 2024-25 / FY 2025-26)
Calculate income tax payable under New (Section 115BAC) and Old Tax Regimes for Current FY 2026-27 (AY 2027-28), FY 2025-26 (AY 2026-27), and historical FY 2024-25 (AY 2025-26) with standard deduction, Section 87A rebate, and marginal relief.
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What Is This Calculator?
Calculate income tax payable under New (Section 115BAC) and Old Tax Regimes for Current FY 2026-27 (AY 2027-28), FY 2025-26 (AY 2026-27), and historical FY 2024-25 (AY 2025-26) with standard deduction, Section 87A rebate, and marginal relief.
Interpreting Indian Income Tax Liability (Current FY 2026-27 & Historical Years)
Salaried taxpayers receive ₹75,000 standard deduction under the New Regime (FY 2024-25 through FY 2026-27). Compare Old vs New regimes based on available 80C/80D deductions.
₹0 Tax Outflow: Gross income up to ₹12.75 Lakhs for Current FY 2026-27 & FY 2025-26 (or ₹7.75 Lakhs for FY 2024-25) qualifies for 100% Section 87A rebate after standard deduction.
5% to 15% Effective Tax: Typical for annual salaries between ₹13 Lakhs and ₹24 Lakhs under expanded Budget 2025 progressive slabs.
20% to 30%+ Effective Tax: For taxable incomes exceeding ₹24 Lakhs (or ₹15 Lakhs under FY 2024-25) entering the top 30% marginal bracket plus 4% cess.
How To Use This Calculator
Income Tax Calculator (FY 2026-27 Current & FY 2024-25 / FY 2025-26) Formula & Calculation Methodology
Indian Income Tax for Current FY 2026-27 (AY 2027-28) and FY 2025-26 (AY 2026-27) follows the Budget 2025 revised slabs under Section 115BAC, while historical FY 2024-25 and FY 2023-24 follow their respective statutory regimes. Salaried employees receive a flat Standard Deduction of ₹75,000 under the New Regime (₹50,000 under Old Regime and FY 2023-24).
Calculation Methodology:Under the default New Tax Regime for Current FY 2026-27 and FY 2025-26 (Budget 2025), taxable income is Gross Income minus ₹75,000 standard deduction. Slabs: 0% up to ₹4L, 5% on ₹4L–₹8L, 10% on ₹8L–₹12L, 15% on ₹12L–₹16L, 20% on ₹16L–₹20L, 25% on ₹20L–₹24L, and 30% above ₹24L. Resident individuals with net taxable income up to ₹12,00,000 receive a full Section 87A rebate (up to ₹60,000), making gross salaried income up to ₹12.75 Lakhs completely tax-free. For historical FY 2024-25 (Budget 2024), the 87A threshold was ₹7,00,000 (tax-free up to ₹7.75L). A mandatory 4% Health and Education Cess is added to the net tax.
Gross IncomeStd DedTaxable IncomeSlab TaxRebate 87ACess- •Gross salary up to ₹12.75 Lakhs incurs ₹0 tax under Current FY 2026-27 & FY 2025-26 New Regime (up to ₹7.75 Lakhs for FY 2024-25).
- •Between ₹12.75L and ₹12.85L (Current FY), Section 87A marginal relief protects against tax exceeding income earned above ₹12 Lakh taxable.
- •Above ₹24 Lakhs (Current FY) or ₹15 Lakhs (FY 2024-25), every additional ₹1 Lakh is taxed at the highest marginal rate of 30% (₹30,000 + 4% cess).
Live Worked Example: Real-Time Substitution
Calculation Summary: Using your currently entered input values (Annual Gross Income: ₹1,200,000, Financial Year: fy2026, Tax Regime: new, Section 80C Deductions: ₹150,000), the in-browser calculation engine executes the formula in real time, yielding Total Tax Payable: ₹0.
Understanding Your Annual Tax Slab
Suppose your annual salary is ₹10,00,000. Under India’s New Tax Regime, you receive a standard deduction of ₹75,000, bringing your taxable income to ₹9,25,000. The calculator determines your progressive tax across the 5%, 10%, and 15% slabs so you know your exact take-home pay.
Common Calculation Mistakes to Avoid
In India, the New Tax Regime offers lower tax slab rates in exchange for removing most exemptions, while the Old Tax Regime allows deductions for house rent (HRA) and investments (Section 80C).
- •Compare both the New and Old Tax Regimes every financial year to choose the one that gives you the lowest tax bill.
- •Check Form 26AS and your Annual Information Statement (AIS) before filing your tax return to verify all tax deductions.
How Income Tax is Calculated: New vs Old Regime Slabs, Rebates & Deductions
A step-by-step breakdown of progressive tax slabs, standard deductions, Section 87A rebate thresholds (₹12L for FY 2025-27 vs ₹7L for FY 2024-25), and marginal relief.
Realistic Assumptions
- Standard Deduction of ₹75,000 is applied automatically for salaried taxpayers under New Regime (₹50,000 under Old Regime and FY 2023-24 New Regime).
- Section 87A rebate limit: Taxable income up to ₹12,00,000 for FY 2025-26 & FY 2026-27 (up to ₹7,00,000 for FY 2024-25 and FY 2023-24).
- Section 87A marginal relief is applied when taxable income marginally exceeds the rebate threshold.
- Mandatory 4% Health & Education Cess is levied on total tax payable.
- Calculations adhere to official Income Tax Department (ITD) India schedules under Finance Acts 2023, 2024, and 2025.
Accuracy Note: Independently verified against official Income Tax Department (ITD) progressive tax slab schedules and Section 87A marginal relief provisions.
Operational Limitations & Caveats
- Does not account for future legislative tax code revisions, sudden interest rate spikes, or lender-specific processing fees.
- Market investment returns (e.g., SIP, stocks, mutual funds) are non-guaranteed and subject to market volatility.
- Inflation impact and real purchasing power should be evaluated separately for multi-decade financial horizons.
Frequently Asked Questions
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