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Income Tax Calculator: Old vs New Regime

Old regime or new? A straight answer for your numbers, not just two totals to squint at.

₹2,00,000₹12,00,000₹1,00,00,000

Only affects old regime exemption limits.

₹0₹0₹3,00,000

One of the few deductions the new regime still allows — your employer’s contribution to your NPS account (up to 14% of basic salary for most employees, 10% for others) reduces taxable income under both regimes. This is separate from your own NPS contribution, which only counts under the old regime.

₹0₹1,50,000₹4,00,000

The new regime doesn’t allow most of these deductions (beyond the standard deduction and NPS employer contribution above) — that’s the core trade-off this calculator is comparing.

₹0₹0₹24,00,000
₹0₹0₹10,00,000

Unlike self-occupied home loan interest, a rented-outproperty’s interest is deductible under both regimes with no cap — the difference is what happens if it creates a loss (see the breakdown below). Leave both at ₹0 if this doesn’t apply to you.

Recommended: New Regime

Based on your numbers, the new regime saves you ₹1,17,000 in tax this year compared to the other regime.

OLD REGIME
Gross Income₹12,00,000
− Standard Deduction− ₹50,000
− Other Deductions− ₹1,50,000
Taxable Income₹10,00,000
NEW REGIME
Gross Income₹12,00,000
− Standard Deduction− ₹75,000
Taxable Income₹11,25,000

Taxable Income

Old Regime
₹10,00,000
New Regime
₹11,25,000

Total Tax Payable

Old Regime
₹1,17,000
New Regime
₹0

Estimated In-Hand (Annual)

Old Regime
₹10,83,000
New Regime
₹12,00,000

Tax Deducted per Month

Old Regime
₹9,750
New Regime
₹0

Estimated In-Hand (Monthly)

Old Regime
₹90,250
New Regime
₹1,00,000

Effective Tax Rate

Old Regime
9.8%
New Regime
0.0%

Slab-by-Slab Breakdown

Old Regime

SlabRateIncome in SlabTax in Slab
₹0 – ₹2,50,0000%₹2,50,000₹0
₹2,50,000 – ₹5,00,0005%₹2,50,000₹12,500
₹5,00,000 – ₹10,00,00020%₹5,00,000₹1,00,000
Tax before rebate₹1,12,500
Health & education cess (4%)+ ₹4,500
Total tax payable₹1,17,000

New Regime

SlabRateIncome in SlabTax in Slab
₹0 – ₹4,00,0000%₹4,00,000₹0
₹4,00,000 – ₹8,00,0005%₹4,00,000₹20,000
₹8,00,000 – ₹12,00,00010%₹3,25,000₹32,500
Tax before rebate₹52,500
Rebate (Section 87A)− ₹52,500
Health & education cess (4%)+ ₹0
Total tax payable₹0

Why this calculator gives you a recommendation, not just two numbers

Most tax calculators compute both regimes and leave you to compare. The honest answer depends on how much you can genuinely claim in old-regime deductions — 80C investments, health insurance premiums, home loan interest, HRA — versus the new regime’s simpler, lower slabs with almost no deductions. This calculator runs both calculations against the FY 2026-27 slabs (including standard deduction, rebate, surcharge with marginal relief, and cess) and tells you directly which one wins for your numbers, and by how much.

What's included

  • Standard deduction: ₹75,000 (new regime) or ₹50,000 (old regime), applied automatically.
  • Employer’s NPS contribution under Section 80CCD(2), deductible under both regimes — one of the few deductions the new regime still allows.
  • Rebate: taxable income up to ₹12,00,000 pays no tax under the new regime; up to ₹5,00,000 under the old regime — with marginal reliefjust above each threshold, so earning ₹1 more than the limit doesn’t suddenly jump your tax by tens of thousands. (This is why, famously, ₹12,00,001 taxable income under the new regime owes only about ₹1 in tax, not a full slab-rate bill.)
  • Age-based exemption limits for senior and super senior citizens under the old regime.
  • Surcharge for income above ₹50 lakh, with the same marginal relief principle applied at each surcharge threshold — and 4% health & education cess on all tax.
  • Home loan interest on a let-out (rented) property, deductible under both regimes with no cap — different from self-occupied interest, which is old-regime only. If interest exceeds rental income, the old regime lets you offset up to ₹2,00,000 against other income this year; the new regime only allows carrying the loss forward against future rental income.

What's not included

This calculator assumes a single combined figure for “other” old-regime deductions (80C, 80D, HRA, home loan interest, etc.) rather than itemizing each section separately, since each has its own cap and eligibility rules. It’s built for a clear, fast comparison — for an actual tax filing, verify the final numbers with a tax professional or the official calculator at incometax.gov.in.