India Income Tax Calculator

Calculate India Income Tax step by step: Tax = new-regime slabs on (gross − ₹75,000 standard deduction), minus the Section 87A rebate where it applies, plus 4% cess.

In short

Formula: Tax = new-regime slabs on (gross − ₹75,000 standard deduction), minus the Section 87A rebate where it applies, plus 4% cess.

Complete the required fields to see the result.

What this calculator does

Calculate India Income Tax step by step: Tax = new-regime slabs on (gross − ₹75,000 standard deduction), minus the Section 87A rebate where it applies, plus 4% cess. Worked example, questions and limitations included.

Use it to turn Gross annual income into a checked result you can compare, copy, or rerun with different assumptions.

The page shows the formula, a numeric worked example, and the assumptions that affect this tax calculation.

Inputs and what they mean

Gross annual income: — number value.

How to use it

Enter each value in the unit shown next to the box (use the unit converter first if your numbers are in other units).
Check the breakdown to see every intermediate step.
Read the limitations before relying on the result.

Formula

Slabs for FY 2025-26 (AY 2026-27) from the Income Tax Department of India: nil to ₹4 lakh, then 5% / 10% / 15% / 20% / 25% / 30% above ₹24 lakh.

Section 87A rebate removes tax up to ₹60,000 when taxable income is at or below ₹12,00,000; marginal relief on the rebate is not modelled.

New regime only — the old regime and its deductions are not modelled.

Tax = new-regime slabs on (gross − ₹75,000 standard deduction), minus the Section 87A rebate where it applies, plus 4% cess.

Inputs used: Gross annual income.

Worked example

Salary of ₹12,75,000

Taxable = 12,75,000 − 75,000 = ₹12,00,000.
Slab tax = 0 + 20,000 + 40,000 + 60,000... up to ₹12,00,000 = ₹60,000.
Taxable income is exactly ₹12,00,000, so the Section 87A rebate removes the full ₹60,000.
Total tax = ₹0.

Reading the result

The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.

Limitations and assumptions

FY 2025-26 (AY 2026-27) new regime only.
No old regime, surcharge, or marginal relief.
No deductions beyond the standard deduction.
Not tax advice.
Estimates from official published rates for the stated tax year only. They ignore credits, deductions other than the standard deduction, and state or local taxes. Not tax advice — check with a qualified tax professional.

Common questions

Which regime does this use?

The new regime only, which is the default from FY 2024-25 onward. The old regime with its deductions is not modelled.

What is the Section 87A rebate?

If your taxable income is at or below ₹12,00,000, your tax (up to ₹60,000) is fully rebated. Marginal relief just above that level is not modelled.

Is surcharge included?

No. Surcharge on very high incomes is not modelled.

How do I use the India Income Tax Calculator?

Enter the required values for Gross annual income. The calculator applies the formula on this page and shows the main result with any supporting breakdown so you can check the arithmetic.

What formula does the India Income Tax Calculator use?

Tax = new-regime slabs on (gross − ₹75,000 standard deduction), minus the Section 87A rebate where it applies, plus 4% cess. The visible formula section above lists the calculation path and the edge cases the page handles, so the result can be checked without relying on the form alone.

Can the India Income Tax Calculator be used for exact decisions?

Use it as a calculation aid, not as a substitute for checking the underlying rule, contract, policy, or professional advice that applies to your situation. When a result depends on local rules, personal details, prices, or dates, enter those values yourself and confirm them before acting.

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