Income Tax Calculator
Calculate income tax under old and new regime for FY 2025-26.
About the Income Tax Calculator
India operates two parallel income tax regimes for individuals: the new regime introduced in Budget 2020 and restructured significantly in Budget 2025, and the old regime that has been in place for decades. The new regime offers lower slab rates and a generous zero-tax threshold, but gives up most deductions. The old regime has higher rates but lets you claim deductions under 80C (PPF, ELSS, LIC), HRA, 80D (health insurance), home loan interest under 24(b), and more. The right choice depends entirely on your income level and how much you actually invest in eligible instruments.
Budget 2025 made the new regime the clear default for most salaried Indians. The standard deduction was raised to ₹75,000, the Section 87A rebate was increased to ₹60,000 (covering all tax up to ₹12 lakh taxable income), and a new zero-slab was added for income up to ₹4 lakh. The practical effect: anyone earning up to ₹12.75 lakh gross pays zero income tax under the new regime in FY 2025-26. For those earning above that threshold, the calculation gets more nuanced and depends heavily on deductions.
This calculator computes your tax under both regimes simultaneously, shows the exact rupee difference, and tells you which regime saves more based on your actual inputs. Enter your income, add your deductions in the Old Regime tab, and compare in real time.
New Regime
Zero tax up to ₹12.75L gross · ₹75K std deduction · No other deductions
Default from FY 2025-26Old Regime
80C up to ₹1.5L · HRA · 80D · Home loan interest up to ₹2L
Better if deductions > ₹3.5LSection 87A Rebate
New: ₹60,000 rebate if taxable ≤ ₹12L · Old: ₹12,500 if taxable ≤ ₹5L
Zero tax cliff at ₹12LSurcharge
10% on tax if income ₹50L-1Cr · 15% up to ₹2Cr · 25% up to ₹5Cr · 37% above ₹5Cr
Marginal relief availableNew Regime Tax Slabs (FY 2025-26 / AY 2026-27)
₹0-4L: 0% · ₹4-8L: 5% · ₹8-12L: 10% · ₹12-16L: 15% · ₹16-20L: 20% · ₹20-24L: 25% · Above ₹24L: 30%
Standard deduction: ₹75,000 (new) / ₹50,000 (old) · 87A rebate: ₹60,000 for new regime (zero tax if taxable ≤ ₹12L), ₹12,500 for old (zero tax if taxable ≤ ₹5L) · Cess: 4% on total income tax + surcharge · Old regime slabs: ₹0-2.5L: 0%, ₹2.5-5L: 5%, ₹5-10L: 20%, above ₹10L: 30%
Worked Example
Salaried employee with ₹15 lakh gross annual income in FY 2025-26
New Regime: Taxable = ₹15L - ₹75K std deduction = ₹13.25L. Tax on slabs = ₹0 + ₹20K + ₹40K + ₹48,750 = ₹1,08,750. After 4% cess = ₹1,13,100. Old Regime: Taxable = ₹15L - ₹50K std - ₹1.5L (80C) - ₹1.2L (HRA) - ₹25K (80D) = ₹11.55L. Tax = ₹1,12,500 + ₹11K = ₹1,23,500. After 4% cess = ₹1,28,440. Result: New Regime saves ₹15,340 for this income and deduction profile.
Tips & Insights
- 1
The crossover point is roughly ₹3.5-4 lakh in total deductions. If your combined 80C + HRA + 80D + home loan interest + NPS is above this, old regime is worth comparing carefully. Below this, new regime almost always wins.
- 2
Employer NPS contribution under 80CCD(2) is deductible in BOTH regimes, up to 10% of basic+DA. This is the only employer-contributed deduction available in the new regime and is often overlooked by employees. It reduces taxable income without you investing anything extra.
- 3
The Section 87A rebate at ₹12L taxable income is a sharp cliff, not a gradual phase-out. Someone with ₹12L taxable income pays zero tax; someone with ₹12.01L pays roughly ₹1,500 in tax. This makes structuring your salary to stay at or just below ₹12.75L gross meaningful if possible.
- 4
Salaried employees can choose their regime each financial year when filing the ITR, even if they declared one option to their employer for TDS purposes. If you switched to new regime mid-year but want old regime benefits, claim them at ITR filing and get a TDS refund. Self-employed individuals have more restricted switching rules.
- 5
HRA exemption is not available in the new regime. If you pay high rent in a metro city, HRA can be a significant deduction under old regime. The HRA exemption is the lowest of: actual HRA received, rent paid minus 10% of basic salary, or 50% of basic (metro) / 40% (non-metro). Calculate this before dismissing old regime.
- 6
If your income exceeds ₹50 lakh, surcharge significantly raises your effective tax rate. At ₹60L income, a 10% surcharge adds roughly ₹40,000 to ₹60,000 in additional tax. Both regimes levy surcharge, but the base tax calculation differs. Always factor in surcharge when planning at higher income levels.
- 7
Standard deduction difference: the new regime gives ₹75,000 while the old regime gives ₹50,000. This ₹25,000 gap partially offsets the loss of other deductions for lower-income earners who do not have significant 80C or HRA claims. For someone with only ₹1.5L in 80C, the net deduction advantage of old regime over new is just ₹1.25L (₹1.5L 80C + ₹50K std - ₹75K new std), which rarely justifies old regime's higher slab rates.
- 8
Filing ITR is mandatory even if you have zero tax liability, if your gross income exceeds the basic exemption limit or you have specific income types. Zero tax does not mean zero filing obligation. Use the tax saved to invest in a step-up SIP or prepay a home loan for compounding wealth over time.
Why this matters for you
India's income tax regime choice is one of the most consequential annual financial decisions for salaried employees, yet most people either stick to old regime out of habit or switch to new regime without checking if it actually saves them money. The difference can be ₹20,000 to ₹80,000 or more per year at incomes between ₹15L and ₹30L, which is a significant amount that compounds meaningfully if invested.
Budget 2025 was a watershed moment. For the first time, the government made the new regime genuinely attractive for a broad range of taxpayers, not just those with no deductions. The raise in standard deduction to ₹75,000 and the ₹60,000 87A rebate together create a practical zero-tax zone up to ₹12.75L gross salary. This means roughly 1.5 to 2 crore salaried Indians who previously paid tax now owe nothing under the new regime in FY 2025-26.
For those earning above ₹12.75L, the decision requires real calculation. The old regime's deduction architecture rewards disciplined investors who max out 80C, contribute to NPS, and claim HRA. The new regime rewards everyone else with lower rates and no paperwork. Use this calculator every April when you submit your regime declaration to your employer, and again in March to verify your TDS matches your expected liability before filing your ITR.