Income Tax Calculator (Old vs New Regime)
Compare your income tax under the new and old regimes for FY 2026-27, with standard deduction, rebate, surcharge, cess and the main old-regime deductions.
Enter your salary and other income, plus deductions if you want to check the old regime, and see which regime costs less.
FY 2026-27 (AY 2027-28) Slabs from Budget 2025, unchanged in Budget 2026. For resident individuals.
Deductions (old regime only)
An estimate for planning. Capital gains, special-rate income and some deduction limits are not covered - check your final figures on the Income Tax e-filing portal or with a tax adviser.
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View all 20Salaried employees can choose the regime each year when filing the return; people with business income can switch back only once.
What Does This Calculator Do?
It works out your income tax for FY 2026-27 (assessment year 2027-28) under both the new and the old regime, side by side, and tells you which one costs less. It includes the standard deduction, the rebate that makes income up to ₹12 lakh tax-free under the new regime, marginal relief, surcharge and the 4% health and education cess.
How to Use It
- Enter your gross salary and any other income (interest, rent, freelance work).
- Choose your age group - it changes the old regime's tax-free limit.
- If you want to check the old regime, enter your deductions: 80C, health insurance, HRA exemption, home loan interest and others.
- Read the two columns and the verdict at the top.
Example
On a salary of ₹18 lakh, the new regime gives a taxable income of ₹17,25,000 after the ₹75,000 standard deduction and a tax of ₹1,50,800 including cess. Under the old regime, with ₹3,45,000 of deductions (80C, health insurance, HRA and NPS), the tax is ₹2,43,360. The new regime saves ₹92,560 a year in this case - the old regime only wins when deductions are much larger.
New Regime Slabs for FY 2026-27
| Taxable income | Rate |
|---|---|
| Up to ₹4 lakh | Nil |
| ₹4-8 lakh | 5% |
| ₹8-12 lakh | 10% |
| ₹12-16 lakh | 15% |
| ₹16-20 lakh | 20% |
| ₹20-24 lakh | 25% |
| Above ₹24 lakh | 30% |
A rebate of up to ₹60,000 makes taxable income up to ₹12 lakh tax-free, so a salary of up to ₹12.75 lakh pays no tax. Just above ₹12 lakh, marginal relief caps the tax at the income above ₹12 lakh. Budget 2026 did not change these slabs.
Old Regime
The old regime has slabs of nil up to ₹2.5 lakh (₹3 lakh for ages 60-79 and ₹5 lakh for 80+), 5% up to ₹5 lakh, 20% up to ₹10 lakh and 30% above, with a ₹50,000 standard deduction and a rebate that makes income up to ₹5 lakh tax-free. In return, it allows deductions such as 80C, 80D, HRA and home loan interest. Our guide to the old vs new tax regime shows how much you need to deduct, at each salary, for the old regime to win.
Limitations
Capital gains, lottery income and other special-rate income are taxed differently and are not included. Some deductions have conditions the calculator cannot check. Use it to choose a regime and plan, then confirm on the Income Tax e-filing portal or with a tax adviser. To see your monthly take-home, use the Salary In-Hand Calculator; for your HRA, use the HRA Calculator.
Frequently Asked Questions
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