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Income Tax Calculator — Old vs New Regime (2026)

Compare your tax liability under both regimes for FY 2026-27 (AY 2027-28) and find out which one saves you more.

Income Details

₹12,00,000
3,00,00050,00,000
Age Category

Age affects the old regime exemption limit only — the new regime is the same for everyone.

Deductions (old regime only)

₹1,50,000
01,50,000
₹0
02,00,000
₹0
050,000
₹0
03,00,000

Not sure? Use the HRA Calculator to work out the exact exempt amount.

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New Tax Regime

Saves you ₹1,17,000/year compared to the old regime.

Old Regime
Taxable Income₹10,00,000
Rebate (87A)₹0
Surcharge + Cess₹4,500
Total Tax₹1,17,000
Effective Rate9.75%
Net Take-Home₹10,83,000
New RegimeBETTER
Taxable Income₹11,25,000
Rebate (87A)₹52,500
Surcharge + Cess₹0
Total Tax₹0
Effective Rate0%
Net Take-Home₹12,00,000
⚠️

Estimate Only

This calculator does not apply surcharge marginal relief and assumes salaried income with no other exemptions beyond those listed. For incomes above ₹50 lakh or complex situations (capital gains, business income, multiple deductions), consult a chartered accountant before filing.

New Tax Regime Slabs — FY 2026-27 (AY 2027-28)

The new regime (Section 115BAC) is the default regime unless you opt for the old one. Budget 2026 made no changes to these slabs versus FY 2025-26. Standard deduction of ₹75,000 applies for salaried individuals and pensioners.

Taxable IncomeRate
₹0 – ₹4,00,000Nil
₹4,00,000 – ₹8,00,0005%
₹8,00,000 – ₹12,00,00010%
₹12,00,000 – ₹16,00,00015%
₹16,00,000 – ₹20,00,00020%
₹20,00,000 – ₹24,00,00025%
Above ₹24,00,00030%

Section 87A rebate: taxable income up to ₹12,00,000 gets a rebate of up to ₹60,000 — making tax effectively nil up to that point (₹12.75 lakh gross salary, after the ₹75,000 standard deduction).

Old Tax Regime Slabs — FY 2026-27

The old regime keeps its full range of deductions (80C, HRA, home loan interest, etc.) but at a lower basic exemption. Standard deduction of ₹50,000 applies for salaried individuals and pensioners. The exemption limit depends on age.

Taxable IncomeBelow 6060–80 (Senior)Above 80 (Super Senior)
Up to ₹2,50,000NilNilNil
₹2,50,000 – ₹3,00,0005%NilNil
₹3,00,000 – ₹5,00,0005%5%Nil
₹5,00,000 – ₹10,00,00020%20%20%
Above ₹10,00,00030%30%30%

Section 87A rebate: taxable income up to ₹5,00,000 gets a rebate of up to ₹12,500 — making tax effectively nil up to that point, regardless of age.

Surcharge and Cess

Taxable IncomeOld RegimeNew Regime
₹50 lakh – ₹1 crore10%10%
₹1 crore – ₹2 crore15%15%
₹2 crore – ₹5 crore25%25% (capped)
Above ₹5 crore37%25% (capped)

A 4% Health & Education Cess applies on (tax + surcharge) under both regimes. The new regime caps surcharge at 25% — it never reaches the old regime's 37% top rate, even above ₹5 crore.

Worked Example — ₹12,00,000 Salary

New Regime

  • Standard Deduction₹75,000
  • Taxable Income₹11,25,000
  • Tax (before rebate)₹52,500
  • Rebate (Sec 87A)− ₹52,500
  • Total Tax Payable₹0

Old Regime (with ₹1.5L 80C)

  • Standard Deduction + 80C₹2,00,000
  • Taxable Income₹10,00,000
  • Tax (before rebate)₹1,12,500
  • Rebate (Sec 87A)₹0 (income > ₹5L)
  • Total Tax Payable₹1,17,000

At ₹12 lakh gross salary with just the standard ₹1.5 lakh Section 80C investment, the new regime results in zero tax thanks to the ₹12 lakh Section 87A rebate threshold, while the old regime still owes ₹1,17,000. Old regime only wins once your total deductions (80C + HRA + home loan interest + NPS) are large enough to push taxable income below ₹5 lakh, or are otherwise unusually large — use the calculator above with your own numbers rather than relying on rules of thumb.

Frequently Asked Questions — Income Tax Calculator

Which tax regime should I choose — old or new?
It depends on your total deductions. If your 80C, HRA, home loan interest, and other deductions add up to a large amount relative to your income, the old regime may work out cheaper. For most people with modest deductions, the new regime's lower rates and higher rebate threshold (₹12 lakh) result in less tax. Compare both using the calculator above with your actual numbers.
Is the new tax regime the default now?
Yes. Since FY 2023-24, the new tax regime under Section 115BAC is the default. You must actively opt for the old regime when filing your return (or inform your employer for TDS purposes) if you want to use it.
Can I switch between old and new regime every year?
Salaried individuals with no business income can switch between regimes every financial year. Individuals with business or professional income can switch only once in their lifetime back to the old regime after opting for the new one.
Is HRA exemption available under the new tax regime?
No. HRA exemption, Section 80C, home loan interest (Section 24b), and most other deductions are not available under the new tax regime. The new regime instead offers a standard deduction of ₹75,000 and lower slab rates.
What is the Section 87A rebate?
It is a rebate that reduces your tax liability to zero if your taxable income is below a threshold — ₹5,00,000 under the old regime (rebate up to ₹12,500) and ₹12,00,000 under the new regime (rebate up to ₹60,000). It applies before surcharge and cess.
Does this calculator account for surcharge marginal relief?
No. Marginal relief on surcharge — which caps the extra tax so it doesn't exceed the amount by which income crosses a surcharge threshold — is not applied here. This only affects incomes very close to the ₹50 lakh, ₹1 crore, ₹2 crore, or ₹5 crore thresholds. Consult a CA if your income falls near these points.

Content by Satyapal Khakhal, Founder, gpaisa.in | Updated for FY 2026-27: July 2026

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