Number Tools
Income Tax Calculator — Estimate Tax Liability
Estimate income tax under old and new tax regimes for India. Enter salary, deductions, and compare payable tax — free, educational.
Income Tax Calculator on FYN Tools is a free Number Tools utility. Open Income Tax Calculator in your browser — no signup required. Income Tax Calculator: Estimates Indian income tax from income and the selected regime/year rules in the form. Input: Taxable income, FY, deductions if the form shows them. Output: Estimated tax, cess, and take-home style totals. Related: GST Calculator.
Privacy & processing: Calculations run locally in your browser. Results are planning estimates — verify with your bank, CA, or advisor.
TL;DR: Income Tax Calculator: Estimates Indian income tax from income and the selected regime/year rules in the form. Input: Taxable income, FY, deductions if the form shows them. Output: Estimated tax, cess, and take-home style totals.
Reviewed by FYN Tools Editorial · Guides ·
Data input / output
| Inputs | Annual income, deductions (80C, 80D, etc.), regime selection, age slab if applicable |
|---|---|
| Outputs | Taxable income, tax payable, effective rate comparison |
| Formats | INR annual figures |
| Limits | Simplified slabs for planning — file through official portal for final liability |
| Processing | Client-side (browser) |
How to Use the Income Tax Calculator
- Enter your annual gross income in Indian rupees.
- Select the age group used for the old-regime slab calculation.
- If using the old regime, enter eligible Chapter VI-A deductions such as applicable 80C or 80D amounts.
- Run the calculator to see taxable income, slab tax, Section 87A rebate or marginal relief, surcharge, cess and total tax.
- Compare the displayed old and new regime tax amounts, then verify your final liability against your actual income details and the official filing rules.
What is an Income Tax Calculator?
Income Tax Calculator: Estimates Indian income tax from income and the selected regime/year rules in the form.
Inputs: Taxable income, FY, deductions if the form shows them. Outputs: Estimated tax, cess, and take-home style totals. Mistake to avoid: skipping 87A or regime choice — the number is only as good as the fields you filled.
Income Tax Calculator: Estimates Indian income tax from income and the selected regime/year rules in the form.
How it works
You set taxable income, fy, deductions if the form shows them in the live panel. Income Tax Calculator then estimates Indian income tax from income and the selected regime/year rules in the form. Results show as estimated tax, cess, and take-home style totals.
Explore more tools on our site.
Usage scenarios
- Salary tax estimate: Estimate tax on ordinary salary income and compare the two regimes before preparing a return.
- FY 2026-27 planning: Use the current-year slabs and standard deductions to understand how taxable income affects estimated tax.
- Old vs new comparison: Enter eligible old-regime deductions and compare the resulting tax amounts without treating the comparison as professional tax advice.
- 12 lakh rebate threshold: Check how the new-regime Section 87A rebate and marginal-relief rules affect income around and just above ₹12 lakh of taxable income.
Input / Output Examples
Input
Gross income ₹12,00,000 under the new regime
Output
The ₹75,000 standard deduction gives estimated taxable income of ₹11,25,000; the calculator then applies the FY 2026-27 slabs and eligible Section 87A rebate.
Input
Gross income ₹12,75,000 under the new regime
Output
The calculator applies the current slabs and the marginal-relief logic around the ₹12 lakh taxable-income threshold.
Input
Gross income ₹15,00,000 with eligible old-regime deductions
Output
The calculator subtracts the ₹50,000 old-regime standard deduction plus the entered Chapter VI-A deductions before applying old-regime slabs.
Frequently Asked Questions
What tax year does this calculator use?+
The calculator is labeled for FY 2026-27 / AY 2027-28 and uses the current standard slab structure implemented for that tax year.
What are the FY 2026-27 new-regime slabs?+
The new regime uses nil tax up to ₹4 lakh, then 5% from ₹4–8 lakh, 10% from ₹8–12 lakh, 15% from ₹12–16 lakh, 20% from ₹16–20 lakh, 25% from ₹20–24 lakh, and 30% above ₹24 lakh.
How does Section 87A work in the new regime?+
For eligible resident individuals, the rebate can be up to ₹60,000 where taxable income does not exceed ₹12 lakh. The calculation also models the marginal-relief rule for taxable income just above ₹12 lakh.
What standard deduction is used?+
The calculator uses ₹75,000 for the new regime and ₹50,000 for the old regime in its ordinary salary-income estimate.
Does the old regime still allow deductions?+
Eligible deductions and exemptions can apply under the old regime, but this calculator currently accepts a single Chapter VI-A deduction amount rather than modelling every individual deduction or exemption.
Does this calculator include 4% cess?+
Yes. Health & Education Cess is calculated at 4% of income tax plus surcharge where applicable.
Does it include surcharge?+
Yes, the calculator includes simplified surcharge treatment for higher taxable incomes. Complex special-rate income and detailed marginal-relief interactions should be verified separately.
Is the result a final tax liability?+
No. It is an estimate for ordinary slab-rate income. Capital gains, special-rate income, business or professional income, AMT/MAT, exemptions, rebates other than the modelled Section 87A rule, TDS and other facts can change the final liability.
Key Features
- Income tax calculation
- Taxable income input
- Tax deductions
- Tax exemptions
- Old tax regime
- New tax regime
- Tax slabs
- Tax liability display
Benefits
Income Tax Calculator runs without installing desktop software
Accepts: Taxable income, FY, deductions if the form shows them
Returns: Estimated tax, cess, and take-home style totals
When to Use Income Tax Calculator
- When you need estimates Indian income tax from income and the selected regime/year rules in the form. without another app
- When your input looks like: Taxable income, FY, deductions if the form shows them
Advantages
- Income Tax Calculator runs without installing desktop software
- Accepts: Taxable income, FY, deductions if the form shows them
- Returns: Estimated tax, cess, and take-home style totals
- How-to and FAQs for Income Tax Calculator live on the same page
Tips
- Read the Privacy & processing note before you paste secrets.
- Skipping 87A or regime choice — the number is only as good as the fields you filled.
- Copy Income Tax Calculator output immediately if you will close the tab.
Common Mistakes
Skipping 87A or regime choice — the number is only as good as the fields you filled.
Treating one run as final without checking units or a second sample.
Ignoring related tools when the next step is resize, compress, or convert.
Summary
Use Income Tax Calculator on this page, then browse related number tools linked below.