Income Tax Calculator
Estimate your Indian income tax under the new and old regimes for FY 2025-26 (AY 2026-27).
finance
Adjust the inputs below
Ready when you are
Adjust the inputs on the left to see your tax payable (incl. 4% cess).
Introduction to the Income Tax Calculator
The Income Tax Calculator is a free online tool that finds your tax liability under both old and new tax regimes for FY 2025-26. The basic formula adds slab-wise tax, applies 4 percent cess, and surcharge above Rs 50 lakh income.
Indian salaried employees, freelancers and business owners use this income tax tool for return filing, salary planning and investment decisions. Whether you work for an IT firm in Bengaluru, freelance from Pune or run a Mumbai SME, comparing old vs new regime is essential. Related concepts like Section 80C, 80D, HRA, standard deduction and rebate under 87A all fit into the same liability calculation.
Inputs are annual income, deductions (80C, 80D, HRA, home loan) and age category. Outputs are tax under both regimes, net take home and which regime saves more.
Note: This is informational. For ITR filing, consult a CA or use the official Income Tax e-filing portal.
Who Should Use This Income Tax Calculator
- IT professionals in Bengaluru deciding between old regime with deductions and new regime with lower slabs.
-
- Freelance designers in Mumbai estimating advance tax before quarterly payment deadlines in June, September, December and March.
-
- Business owners in Ahmedabad planning section 80C, 80D and home loan interest claims under old regime.
-
- Senior citizens in Chennai checking higher exemption limits under old regime versus simplified new regime.
-
- First time earners in Pune learning how slab rates, cess and rebate work on a Rs 7 lakh CTC.
Tips for Tax Planning
Smart Income Tax Tips
- New regime gives a flat Rs 75,000 standard deduction in FY 2025-26 and zero tax up to Rs 12 lakh due to rebate under 87A.
-
- Old regime still wins for users with high home loan interest above Rs 2 lakh and full 80C of Rs 1.5 lakh.
-
- Section 80D allows Rs 25,000 health insurance premium (Rs 50,000 for senior citizens), useful for tax saving.
-
- NPS Tier 1 contributions up to Rs 50,000 under 80CCD(1B) give an extra deduction beyond the 80C limit.
-
- Always pay advance tax in 4 installments if total liability crosses Rs 10,000 to avoid 1 percent monthly interest under section 234B/234C.
Formula Explanation
Core Income Tax Formula
Slab Tax = Sum of (Income in slab x Slab rate) Cess = Slab Tax x 4 percent Surcharge = Slab Tax x rate (10/15/25/37 percent above Rs 50 lakh income) Net Tax = Slab Tax + Cess + Surcharge - 87A Rebate
Where:
- Slab Rate = applicable percentage for each income band per regime
-
- Cess = 4 percent Health and Education Cess
-
- 87A Rebate = up to Rs 60,000 (new regime) for income up to Rs 12 lakh
Example: Salaried user earning Rs 15 lakh under new regime: standard deduction Rs 75,000, taxable Rs 14,25,000. Slab tax = Rs 97,500. Cess = Rs 3,900. Net tax = Rs 1,01,400.
Income Tax Quick Reference Table (FY 2025-26, New Regime)
| Income Slab (Rs) | Tax Rate | Tax on Slab | Cumulative Tax |
|---|---|---|---|
| 0 to 4,00,000 | 0 percent | 0 | 0 |
| 4,00,001 to 8,00,000 | 5 percent | 20,000 | 20,000 |
| 8,00,001 to 12,00,000 | 10 percent | 40,000 | 60,000 |
| 12,00,001 to 16,00,000 | 15 percent | 60,000 | 1,20,000 |
| 16,00,001 to 20,00,000 | 20 percent | 80,000 | 2,00,000 |
| Above 24,00,000 | 30 percent | varies | varies |
Real-World Example
Example: Manish's Salary Tax Plan
Meet Manish, a 32 year old project manager from Hyderabad earning Rs 18 lakh per year with Rs 1.5 lakh in 80C investments and Rs 50,000 health insurance under 80D.
Step 1: Under new regime: Standard deduction Rs 75,000, taxable Rs 17,25,000. Slab tax = Rs 1,45,000. Cess Rs 5,800. Total Rs 1,50,800. Step 2: Under old regime: Deductions Rs 2 lakh, taxable Rs 16,00,000. Slab tax = Rs 2,92,500. Cess Rs 11,700. Total Rs 3,04,200. Step 3: Manish saves Rs 1,53,400 by choosing new regime, even without claiming 80C and 80D.
Result: Manish opts for new regime, takes home Rs 16,49,200 after tax. He still continues PPF and term insurance for financial security, just without claiming them for tax.
Frequently Asked Questions About Income Tax
Indian salaried users, freelancers and business owners often ask which tax regime saves more, how 87A rebate works and which deductions still apply under new regime. The answers below cover FY 2025-26 slabs, advance tax rules and Section 80C/80D basics for Indian taxpayers.
Frequently asked questions
How does the Income Tax Calculator work?
The Income Tax Calculator computes your tax liability under both the new tax regime and the old regime, applying the FY 2024-25 slabs from the Income Tax Department. It adds applicable cess and surcharge, then subtracts TDS already paid to show net tax payable or refundable. Compare both regimes side by side to pick the lower-tax option.
Is the tax calculation accurate per the IT Act?
Yes, the calculator uses the official slabs published by the Income Tax Department for FY 2024-25 and FY 2025-26 budget updates. It applies the 4% Health and Education Cess, the surcharge tiers for income above Rs 50 lakh, and the standard deduction. For complex cases involving capital gains, foreign income, or business income, consult a CA before filing.
What inputs does the Income Tax Calculator need?
Enter your gross annual income in Rs, age band (below 60, senior, super-senior), and details of deductions like Section 80C investments (PPF, ELSS, life insurance), 80D health insurance, 24(b) home-loan interest, and HRA exemption. The calculator returns tax payable under both old and new regimes plus the regime that saves you more.
Which regime should I choose, old or new?
The new regime usually wins for incomes between Rs 7-15 lakh with no major deductions. The old regime wins if you claim Section 80C (Rs 1.5 lakh), 80D, HRA, and home-loan interest, which can together exceed Rs 4-5 lakh in deductions. Run the calculator with your actual figures because the break-even point depends on your specific deductions.
Is the Income Tax Calculator free to use?
Yes, the Income Tax Calculator is free on AllSmartCalculators with no signup, ads inside the form, or login. It works on any phone or laptop browser. Bookmark it before March 31 for last-minute tax-saving investment decisions, and again in June-July when you file ITR and need to verify your tax liability versus TDS already deducted.
What related calculators help with tax planning?
Pair the Income Tax Calculator with the HRA Calculator (for the exempt portion of house rent allowance), the PPF Calculator (for Section 80C investment planning), and the NPS Calculator (for the extra Rs 50,000 80CCD(1B) deduction). The Net Worth Calculator helps you track total assets and liabilities for tax-planning context.
Related calculators
Currency Converter
Convert between 30 major world currencies instantly with reference rates — see the converted amount, exchange rate, and inverse rate.
EMI Calculator
Calculate Equated Monthly Instalments for home, personal, car, and education loans — with interest split and total payable.
SIP Calculator
Project the future value of a Systematic Investment Plan — see how a fixed monthly contribution compounds over years.
Compound Interest Calculator
See how a one-time principal grows under compound interest at any rate, tenure, and compounding frequency (daily, monthly, quarterly, yearly).
Results from this calculator are estimates for informational use only — not financial, medical, or professional advice. Read our full disclaimer before acting on any number you see here.