Income Tax Calculator
Income Tax Calculator: free, instant and private. Both regimes are computed so you can compare — the cheaper one depends almost entirely on how large your deductions are.
How the Income Tax Calculator works
The Income Tax Calculator takes Gross annual income (₹), Regime, Age, Old-regime deductions (80C, HRA…, ₹) and returns the answer instantly — no button to hunt for, no page reload. Both regimes are computed so you can compare — the cheaper one depends almost entirely on how large your deductions are. Below roughly ₹12.75L income the new regime usually wins with no paperwork; heavy 80C + HRA + home-loan users should still check the old one.
Enter your own numbers to replace the example values; the result panel updates as you type. Everything runs in this single page, so nothing you enter leaves your device.
Formula used
tax = slab-wise tax on (income − standard deduction), + 4% health & education cess, − 87A rebate
| Symbol | Meaning |
|---|---|
| standard deduction | ₹75,000 under the new regime, ₹50,000 under the old |
| 87A rebate | new regime: tax waived up to ₹12L income; old: up to ₹12,500 of tax |
| slabs | new: 0–30% stepped every ₹4L; old: 0–30% with senior-age relief |
Both regimes are computed so you can compare — the cheaper one depends almost entirely on how large your deductions are. Below roughly ₹12.75L income the new regime usually wins with no paperwork; heavy 80C + HRA + home-loan users should still check the old one.
Inputs used: Gross annual income (₹), Regime, Age, Old-regime deductions (80C, HRA…, ₹).
Worked example
Take the default example — gross annual income (₹) of 1200000, regime set to New regime, age of 30:
- Total tax payable (incl. 4% cess): 0
- Taxable income: 1,125,000
- Rough monthly TDS: 0
- 87A rebate applied: 52,500
- Cheaper regime: new
- regime: new
- taxBeforeCess: 0
- cess: 0
Frequently asked questions
- What formula does the Income Tax Calculator use?
- It uses tax = slab-wise tax on (income − standard deduction), + 4% health & education cess, − 87A rebate, where standard deduction is the ₹75,000 under the new regime, ₹50,000 under the old; 87A rebate is the new regime: tax waived up to ₹12L income; old: up to ₹12,500 of tax; slabs is the new: 0–30% stepped every ₹4L; old: 0–30% with senior-age relief.
- Is the Income Tax Calculator free?
- Yes. There is no signup, no usage limit and no watermark — the calculator runs entirely in your browser.
- How do I read the result?
- Both regimes are computed so you can compare — the cheaper one depends almost entirely on how large your deductions are. Below roughly ₹12.75L income the new regime usually wins with no paperwork; heavy 80C + HRA + home-loan users should still check the old one.
- Does the Income Tax Calculator store or send my data?
- No. Every calculation happens locally in the page, so the numbers you type are never uploaded or logged.
- Does it work on a phone and offline?
- Yes — the page is a single lightweight file that adapts to any screen size. Once it has loaded it keeps working without a network connection.