Income Tax Calculator — Old vs New Regime
Enter your income and deductions once, and instantly see your tax under both regimes — plus which one saves you more for FY 2026-27.
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New regime
Calculating…
Total tax
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Effective rate 0%
Total tax
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Effective rate 0%
Tax comparison
How it’s calculated
| Step | New | Old |
|---|---|---|
| Gross total income | ₹0 | ₹0 |
| − Standard deduction | ₹0 | ₹0 |
| − Deductions & exemptions | ₹0 | ₹0 |
| = Taxable income | ₹0 | ₹0 |
| Tax before rebate | ₹0 | ₹0 |
| − Rebate u/s 87A | ₹0 | ₹0 |
| + Cess (4%) | ₹0 | ₹0 |
| = Total tax payable | ₹0 | ₹0 |
See slab-by-slab breakup
New regime
Old regime
Old vs new tax regime: how to choose
Since the new regime became the default, the big question every salaried taxpayer asks is:should I stay on the old regime or move to the new one? There is no single right answer — it depends entirely on how much you can deduct. This calculator removes the guesswork by computing your tax both ways from the same set of numbers.
- New regime — lower slab rates, a ₹75,000 standard deduction, and no tax up to ₹12,00,000 taxable income. Best when your deductions are small.
- Old regime — higher rates but lets you claim 80C, 80D, NPS, home-loan interest and HRA exemption. Best when your deductions are large.
New regime tax slabs (FY 2026-27)
Up to ₹4,00,000: nil · ₹4–8L: 5% · ₹8–12L: 10% · ₹12–16L: 15% · ₹16–20L: 20% · ₹20–24L: 25% · above ₹24L: 30%. A full rebate under Section 87A makes tax zero up to ₹12,00,000 of taxable income.
Old regime tax slabs (FY 2026-27)
Up to ₹2,50,000: nil · ₹2.5–5L: 5% · ₹5–10L: 20% · above ₹10L: 30%. The basic exemption rises to ₹3,00,000 for senior citizens (60–80) and ₹5,00,000 for super-senior citizens (80+). A rebate under Section 87A makes tax zero up to ₹5,00,000.
Frequently asked questions
Which tax regime is better — old or new?
It depends on how many deductions you claim. The new regime has lower slab rates and a full rebate up to Rs 12,00,000 of taxable income, so it usually wins for people with few deductions. The old regime can be better if you claim large deductions like 80C, 80D, home-loan interest and HRA. This calculator computes your tax under both and tells you exactly which one saves more.
Can I switch between the old and new regime every year?
Salaried individuals (with only salary income) can choose their regime afresh every financial year while filing their return. Taxpayers with business or professional income have more restrictions and can generally switch back to the old regime only once. The new regime is the default unless you opt for the old one.
What deductions are allowed in the new tax regime?
Most common deductions — 80C, 80D, HRA exemption, home-loan interest on a self-occupied house — are NOT available in the new regime. However, the standard deduction of Rs 75,000 for salaried people and the employer’s NPS contribution under 80CCD(2) are still allowed.
What is the rebate under Section 87A?
It is a rebate that reduces your tax to zero if your taxable income is within a limit. Under the new regime the limit is Rs 12,00,000 of taxable income (a rebate of up to Rs 60,000). Under the old regime it is Rs 5,00,000 (a rebate of up to Rs 12,500). Marginal relief applies just above the new-regime limit.
Is the standard deduction available in both regimes?
Yes. Salaried employees and pensioners get a standard deduction from salary income — Rs 75,000 in the new regime and Rs 50,000 in the old regime. It is applied automatically in this calculator.
What is the 4% health and education cess?
After your income tax is calculated (and any rebate applied), a health and education cess of 4% is added on top of the tax. This calculator includes it in the total tax payable.
What are the income tax slabs for senior citizens?
Under the old regime, resident senior citizens (aged 60 to 80) get a higher basic exemption of Rs 3,00,000, and super senior citizens above 70 or 80 get Rs 5,00,000, before the normal slab rates apply. The new regime uses the same slabs for everyone regardless of age. Pick your age group above and the calculator applies the correct senior-citizen exemption automatically.
How can I save tax in the new tax regime?
The new regime removes most deductions, but a few levers still work: the Rs 75,000 standard deduction (automatic for salaried people), your employer’s NPS contribution under Section 80CCD(2), and keeping taxable income within the Rs 12,00,000 rebate limit so your tax becomes zero. Routing more of your CTC through employer NPS is the main way to save tax in the new regime.
Do HUFs get the same income tax slabs?
Yes. A Hindu Undivided Family (HUF) is taxed at the same slab rates as an individual below 60 under both the old and new regimes, and can also opt for the new regime. A HUF does not get the higher senior-citizen exemption. You can use this calculator for a HUF’s income too.
Is there an income tax calculator in Excel for FY 2026-27?
You don’t need a separate Excel sheet. This online income tax calculator does the same job as an Excel calculation sheet — the latest FY 2026-27 slabs are already built in, it computes both regimes at once, and it updates instantly as you change your income or deductions. Nothing to download and no formulas to maintain.