What is the Income Tax Calculator?
The income tax calculator is a free online tool that helps you work out income tax quickly and accurately. It uses the standard formula Tax computed using slab rates; cess = 4% of tax. New-regime FY 2024-25 slabs applied by default. and shows the result instantly as you type, along with a full breakdown so you can see exactly how the answer was reached.
How to use this calculator
- Enter your annual income.
- Choose the tax regime.
- For the old regime, enter deductions (80C, HRA, etc.).
- See your estimated tax and cess.
Formula used
Tax computed using slab rates; cess = 4% of tax. New-regime FY 2024-25 slabs applied by default.Explanation of each input
- Annual taxable income โ the annual taxable income used in the calculation.
- Tax regime โ the tax regime used in the calculation.
- Deductions (old regime) โ the deductions (old regime) used in the calculation.
Understanding your result
- Income tax โ the calculated income tax.
- Health & education cess (4%) โ the calculated health & education cess (4%).
- Total tax payable โ the calculated total tax payable.
Step-by-step calculation
For the example values 1200000, new regime:
- Apply the formula:
Tax computed using slab rates; cess = 4% of tax. New-regime FY 2024-25 slabs applied by default. - Substitute the values: Slab-wise tax + 4% cess
- Result: Approx total tax (illustrative; verify current slabs)
Worked example
| Inputs | 1200000, new regime |
|---|---|
| Working | Slab-wise tax + 4% cess |
| Result | Approx total tax (illustrative; verify current slabs) |
Benefits and practical uses
This calculator saves you time and reduces errors when you need income tax. It is useful for students, professionals and anyone who wants a fast, reliable answer without manual calculation. Results update instantly, work in your browser and can be copied or shared in one click.
Assumptions and limitations
- FY 2024-25 slab rates (shown on page).
- Standard cess of 4%.
- Does not cover surcharge, rebates beyond 87A, or special-rate incomes.
Frequently asked questions
Which regime should I pick?
The new regime has lower rates but few deductions; the old regime helps if you claim large deductions. Compare both.
Are these slabs current?
Slabs shown are for FY 2024-25 and can change each Union Budget. Always confirm the latest rates before filing.