India Income Tax Calculator 2025-26

New Regime vs Old Regime: A Complete Guide for FY 2025-26

The Union Budget 2025 brought the biggest overhaul to the new tax regime since its introduction. The headline change: zero income tax for income up to ₹12 lakh under the new regime (effective tax-free limit of ₹12.75 lakh for salaried individuals including the ₹75,000 standard deduction). This makes the new regime even more compelling for most taxpayers.

New Tax Regime Slabs (FY 2025-26)

The Budget 2025 completely restructured the new regime with wider nil and lower-rate bands:

Key features of the new regime for FY 2025-26: Standard deduction of ₹75,000 for salaried employees and pensioners. Section 87A rebate ensures zero tax if net taxable income is up to ₹12,00,000. This means anyone earning up to ₹12.75 lakh gross salary pays zero income tax under the new regime.

Old Tax Regime Slabs (FY 2025-26)

The old regime retains the traditional structure with higher slab rates but allows a wide range of deductions:

Under the old regime, Section 87A rebate applies if taxable income (after all deductions) is up to ₹5,00,000, resulting in zero tax.

When Should You Choose the Old Regime?

With the new regime's zero-tax limit raised to ₹12 lakh, the old regime makes sense only for high-income earners with very substantial deductions. For most salaried individuals earning under ₹12.75 lakh, the new regime is the clear winner. For higher incomes, the old regime may still benefit those who can claim large HRA, home loan interest (Section 24b), full 80C, 80D, and NPS deductions together exceeding ₹5–6 lakh.

Common scenarios where the old regime wins:

• You pay rent in a metro city and claim substantial HRA exemption
• You maximise Section 80C investments at ₹1,50,000
• You pay home loan interest (Section 24b up to ₹2,00,000)
• You have health insurance premiums under Section 80D
• You contribute to NPS under Section 80CCD(1B) for an extra ₹50,000 deduction

Section 80C — What You Can Invest

Section 80C allows deductions of up to ₹1,50,000 per year for investments in:

• PPF (Public Provident Fund) — 15-year lock-in, currently earning ~7.1% p.a.
• ELSS Mutual Funds — 3-year lock-in, market-linked returns, most popular option
• EPF/VPF — Employee and Voluntary Provident Fund contributions
• NSC (National Savings Certificate) — 5-year fixed deposit with post office
• Tax-Saver FD — 5-year bank fixed deposits
• Life Insurance Premiums — LIC, term insurance, endowment plans
• Sukanya Samriddhi Yojana — For girl child education/marriage
• Home loan principal repayment — Principal component of EMI
• Tuition fees — For up to 2 children in Indian institutions

Section 80D — Health Insurance Deduction

Section 80D provides deductions for health insurance premiums paid:

• Up to ₹25,000 for self, spouse, and dependent children
• Additional ₹25,000 for parents (₹50,000 if parents are senior citizens aged 60+)
• An additional ₹5,000 for preventive health check-ups within the above limits

Total maximum deduction under 80D can reach ₹75,000 if parents are senior citizens — making this one of the most valuable deductions alongside 80C.

HRA (House Rent Allowance) Calculation

HRA exemption is one of the biggest tax benefits for salaried employees living in rented accommodation. The exempt amount is the least of:

1. Actual HRA received from employer
2. Rent paid minus 10% of basic salary
3. 50% of basic salary (for metro cities: Mumbai, Delhi, Kolkata, Chennai) or 40% (non-metro)

For example, if your basic salary is ₹6,00,000/year, you receive HRA of ₹2,40,000, and you pay rent of ₹20,000/month (₹2,40,000/year) in Delhi — your exempt HRA would be min(₹2,40,000; ₹2,40,000 - ₹60,000; ₹3,00,000) = ₹1,80,000. This is only available under the old regime.

What is Rebate Under Section 87A?

Section 87A provides a tax rebate to ensure that taxpayers with modest incomes pay zero tax. Under the new regime for FY 2025-26 (Budget 2025), the rebate threshold was raised significantly — if your net taxable income (after standard deduction) is ₹12,00,000 or less, your entire tax liability is waived. This means salaried individuals earning up to ₹12.75 lakh gross (₹12L + ₹75K standard deduction) pay zero income tax under the new regime.

Under the old regime, the rebate is available if taxable income (after all deductions) does not exceed ₹5,00,000.

Surcharge for High-Income Earners

A surcharge is levied on the base tax amount for high-income taxpayers:

• 10% surcharge: Total income exceeds ₹50 lakh but is up to ₹1 crore
• 15% surcharge: Total income exceeds ₹1 crore but is up to ₹2 crore
• 25% surcharge: Total income exceeds ₹2 crore (new regime only)
• 37% surcharge: Total income exceeds ₹5 crore (old regime; capped at 25% for new regime)

This is a significant consideration for high earners — the new regime's cap of 25% maximum surcharge makes it more attractive for incomes above ₹2 crore.

Health and Education Cess — 4%

After calculating income tax plus surcharge, a 4% Health and Education Cess is added to the total. This cess, introduced in 2018 (replacing the earlier 3% Education Cess), applies to all taxpayers without exception. The revenue is earmarked for health and education initiatives.

Advance Tax — Who Needs to Pay?

If your total tax liability for the year exceeds ₹10,000, you are required to pay advance tax in four installments:

• 15% by 15 June
• 45% by 15 September
• 75% by 15 December
• 100% by 15 March

Failure to pay advance tax on time attracts interest under Sections 234B and 234C. Salaried employees who have TDS deducted at source typically don't need to pay advance tax unless they have significant income from other sources like rent, freelancing, or investments.

ITR Filing — Deadlines and Which Form to Use

For FY 2025-26 (Assessment Year 2026-27), the income tax return filing deadline for salaried individuals is 31 July 2026. If you miss this date, you can file a belated return by 31 December 2026 with a penalty of ₹5,000 (₹1,000 if income is below ₹5 lakh).

ITR form selection guide:

• ITR-1 (Sahaj): For salaried individuals with income up to ₹50 lakh, one house property, and interest income only
• ITR-2: For individuals with capital gains, more than one house property, or foreign income
• ITR-3: For individuals with business or professional income
• ITR-4 (Sugam): For individuals opting for presumptive taxation scheme under Sections 44AD/44ADA