India Income Tax Calculator

Taxable income = Gross income − allowed deductions (80C and others apply under the old regime only)
Base tax = Σ (income falling within each slab × that slab rate)
Total tax = Base tax × 1.04   (4% health and education cess)

• Slaban income band with its own rate; only the portion inside the band pays that rate
• 80Cold-regime deduction capped at ₹1,50,000 covering EPF, ELSS, PPF, life premiums, principal repayment
• Cesshealth and education cess, 4% of the tax figure, not of income
• Effective ratetotal tax divided by gross income, always below the top slab rate reached

• Slab boundaries and rates are reset in the Union Budget most years, and the new regime in particular has been rewritten repeatedly since its introduction. The example above names FY 2024-25 for that reason; the tool applies the slab set for the year it is configured for, and any figure you carry into a different year needs rechecking against the Finance Act.
• The section 87A rebate can reduce tax to nil for smaller incomes, and its threshold differs between the two regimes and moves between Budgets. A slab calculation alone will overstate the liability of anyone sitting under that ceiling.
• The two regimes are a genuine choice for most salaried taxpayers, and the break-even depends entirely on how much deduction you can actually claim. Someone with a home loan, full 80C usage, HRA and 80D premiums often still comes out ahead on the old regime, while a taxpayer with none of those rarely does.
• Surcharge applies above ₹50 lakh of income and stacks before cess, at rates rising in steps. Any calculation that stops at the slab table understates high earners by a wide margin.
• Salary income also carries a standard deduction before the slabs are applied, and its amount differs by regime. Enter income after that deduction, or the result will be too high.