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Income Tax Calculator — New vs Old Regime

Enter your salary and deductions to see your tax under both regimes side by side, with the slab-wise working, for FY 2026-27 or FY 2025-26.

  • 100% private
  • Free · no signup
  • Works on any phone

How to use it

  1. Choose the financial year and your age group (age matters only in the old regime).
  2. Enter your gross yearly salary or pension and any other income such as interest.
  3. Fill in deductions you actually claim. Those under “Old regime only” are ignored in the new regime.
  4. Compare the total tax under both regimes, see which is lower and by how much, and open the slab-wise calculation.

New regime or old regime?

Every individual can choose between two ways of calculating income tax. The new regime is the default: lower slab rates and a ₹75,000 standard deduction for salary and pension, but almost no other deductions. The old regime has higher rates and a ₹50,000 standard deduction, but lets you claim HRA, 80C investments, health insurance, home-loan interest and more. Which one is cheaper depends on how much you can claim — that is exactly what this calculator compares.

New regime slabs (FY 2026-27 and FY 2025-26)

Taxable incomeRate
Up to ₹4,00,000Nil
₹4,00,001 – ₹8,00,0005%
₹8,00,001 – ₹12,00,00010%
₹12,00,001 – ₹16,00,00015%
₹16,00,001 – ₹20,00,00020%
₹20,00,001 – ₹24,00,00025%
Above ₹24,00,00030%

A resident individual whose taxable income is up to ₹12 lakh gets a rebate of up to ₹60,000, so no tax is payable — ₹12.75 lakh for salaried people after the standard deduction. Just above ₹12 lakh, marginal relief limits the tax to the income above ₹12 lakh.

Old regime slabs

Taxable incomeBelow 6060 – 7980 and above
Up to ₹2,50,000NilNilNil
₹2,50,001 – ₹3,00,0005%NilNil
₹3,00,001 – ₹5,00,0005%5%Nil
₹5,00,001 – ₹10,00,00020%20%20%
Above ₹10,00,00030%30%30%

In the old regime the rebate is up to ₹12,500 when taxable income is up to ₹5 lakh. In both regimes, a surcharge applies above ₹50 lakh (10%), ₹1 crore (15%) and ₹2 crore (25%); the old regime adds 37% above ₹5 crore, while the new regime caps it at 25%. A 4% health and education cess is added to the tax and surcharge.

Worked examples (FY 2026-27)

  • Salary ₹12,75,000, new regime: taxable income ₹12,00,000 after the ₹75,000 standard deduction. Tax on slabs is ₹60,000, and the rebate cancels it — nil tax.
  • Salary ₹12,85,000, new regime: taxable income ₹12,10,000; tax on slabs ₹61,500. Marginal relief limits it to the ₹10,000 earned above ₹12 lakh, plus 4% cess = ₹10,400.
  • Salary ₹15,00,000 with ₹1.5 lakh of 80C and ₹25,000 of health insurance: new regime ₹97,500; old regime ₹2,02,800. The new regime saves ₹1,05,300.
  • Same salary with heavy deductions (₹50,000 interest income, HRA ₹1.2 lakh, 80C ₹1.5 lakh, health insurance ₹25,000 for self and ₹30,000 for senior-citizen parents, home-loan interest ₹2 lakh, NPS ₹50,000): new regime ₹1,05,300; old regime ₹1,01,400 — now the old regime is ₹3,900 cheaper.

FY 2026-27 and the Income-tax Act, 2025

The Income-tax Act, 2025 replaced the 1961 Act from 1 April 2026. It uses a single “tax year” instead of “previous year” and “assessment year”, and many sections have new numbers, but the Finance Bill, 2026 made no change to the tax rates. FY 2025-26 (AY 2026-27) is still governed by the 1961 Act.

Provision1961 Act2025 Act
New tax regime115BAC202
Rebate87A156
Standard deduction16(ia)19
Investments (PPF, ELSS, LIC…)80C123
NPS contributions80CCD124
Health insurance80D126

Disclaimer: this calculator gives an estimate for a resident individual with salary, pension and ordinary income. It does not cover capital gains, business income or other special cases. Consult a chartered accountant or the official calculator on the Income Tax Department’s website before filing.

Planning what to do with the tax you save? See how it could grow with the PPF calculator or the SIP calculator, or check a home-loan EMI with the EMI calculator.

Frequently asked questions

Which is better for me, the new or the old tax regime?

It depends on your deductions. With few deductions the new regime is usually cheaper — on a ₹15 lakh salary with only ₹1.75 lakh of 80C and health insurance it saves about ₹1.05 lakh. With large HRA, home-loan interest and investment claims the old regime can win. Enter your own figures to compare.

Is income up to ₹12 lakh tax-free?

Under the new regime, a resident individual with taxable income up to ₹12 lakh gets a rebate that cancels the tax, so salaried people pay nothing up to ₹12.75 lakh of salary. The rebate does not cover tax on special-rate income such as certain capital gains.

What is marginal relief?

It stops a small rise in income from causing a big jump in tax. Just above ₹12 lakh in the new regime, tax cannot exceed the income above ₹12 lakh. Similar relief applies to the surcharge just above ₹50 lakh, ₹1 crore, ₹2 crore and ₹5 crore.

Did the tax slabs change for FY 2026-27?

No. The Finance Bill, 2026 kept the rates unchanged under both regimes. What changed is the law itself: from 1 April 2026 the Income-tax Act, 2025 applies, with the term “tax year” and new section numbers.

How much is the standard deduction?

₹75,000 under the new regime and ₹50,000 under the old regime, for salary or pension, limited to the amount of salary.

Can I switch between the regimes every year?

If you have no business or professional income, yes — you choose the regime each year when you file your return, after telling your employer your choice for TDS. People with business income have stricter rules on switching.