⌖ Income Tax & TDS
Income Tax Calculator.
FY 2025-26: Old and New regime, side by side.
⌖ Inputs
Calculations use FY 2025-26 slabs (Budget 2025). Standard deduction of ₹75,000 (New) / ₹50,000 (Old) is applied automatically for salaried assessees. 4% Health & Education Cess is added to the tax + surcharge.
⌖ Result
New regime: total tax
₹97,500
Lower by ₹1,13,100
Old regime: total tax
₹2,10,600
New regime: recommended
₹97,500
Saves ₹1,13,100 vs. the other regime.
⌖ New regime breakdown
Taxable income (post std. deduction)
₹14,25,000
Income tax at slabs
₹93,750
Surcharge
₹0
Health & Education Cess (4%)
₹3,750
Total tax payable
₹97,500
⌖ Old regime breakdown
Taxable income (after deductions)
₹13,00,000
Income tax at slabs
₹2,02,500
Surcharge
₹0
Health & Education Cess (4%)
₹8,100
Total tax payable
₹2,10,600
⌖ §I / Formula
The math,
in the open.
Indian income tax for individuals runs on two parallel regimes for FY 2025-26. The New Regime, default from AY 2024-25 onwards, runs on broader slabs with a higher standard deduction (₹75,000) and a generous §87A rebate (up to ₹60,000 of tax for taxable income ≤ ₹12L), but disallows most chapter-VI-A deductions like 80C, 80D and HRA. The Old Regime keeps the historical slabs (basic exemption ₹2.5L / ₹3L / ₹5L depending on age), allows the full deduction stack, and gives a smaller §87A rebate (up to ₹12,500 for taxable income ≤ ₹5L).
Total tax = Slab tax − §87A rebate
+ Surcharge × (10% / 15% / 25% / 37%)
+ 4% Health & Education Cess
Surcharge kicks in at the ₹50L / ₹1Cr / ₹2Cr / ₹5Cr thresholds. The New Regime caps the surcharge at 25% even above ₹5Cr; the Old Regime goes up to 37%. Marginal relief applies when an additional rupee of income would push tax up by more than the rupee itself. CBDT does the arithmetic automatically in the return filing software, and we don't model it here.
Edge cases the calculator does not currently handle: AMT under §115JC, capital gains taxed at special rates (LTCG/STCG, 112A, 111A), agricultural income aggregation, foreign tax credit. For anything beyond the slab + cess + surcharge structure, book a consultation.