Income Tax Calculator

Calculate your income tax under old and new regime side by side. Includes 80C, 80D, HRA, NPS deductions, surcharge, cess and rebate u/s 87A. Find which regime saves you more tax in 2026.

Income Tax Calculator (Old vs New Regime)

Compare old vs new regime instantly

Annual gross income Rs 12L

Enter your total CTC / gross income before any deductions

Rs 1LRs 1Cr
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Estimates for FY 2025-26. Consult a CA for exact tax planning.

Old vs New regime — tax comparison
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ThriftRupee Insight

For a Rs 12 lakh salary with standard deductions only, the new regime gives zero tax (87A rebate). But add home loan interest (Rs 2L), full 80C (Rs 1.5L), NPS (Rs 50K) and HRA — old regime saves Rs 40,000–80,000 more. Always calculate both before filing.

Income Tax Calculator — Old vs New Regime 2026

This calculator computes your income tax liability under both the old tax regime and the new tax regime for FY 2025-26 (AY 2026-27). Enter your gross income, select your regime, and add deductions (for old regime) to see your exact tax, effective rate and which regime saves you more money.

New regime slabs (FY 2025-26)

The new regime has six slabs: nil up to Rs 3L, 5% from Rs 3–7L, 10% from Rs 7–10L, 15% from Rs 10–12L, 20% from Rs 12–15L, and 30% above Rs 15L. The standard deduction is Rs 75,000. Due to the Section 87A rebate, effectively zero tax is payable on income up to Rs 12.75 lakh.

Old regime slabs (FY 2025-26)

The old regime has three slabs: nil up to Rs 2.5L, 5% from Rs 2.5–5L, 20% from Rs 5–10L, and 30% above Rs 10L. Standard deduction is Rs 50,000. Section 87A gives full rebate on income up to Rs 5L. The key advantage is the wide array of deductions — 80C, 80D, HRA, home loan interest, NPS — that can significantly reduce taxable income.

How to decide between old and new regime

The breakeven point is approximately Rs 3.75 lakh in deductions. If your total eligible deductions (beyond the standard deduction) exceed Rs 3.75 lakh, the old regime saves more tax. Below that threshold, the new regime's lower slabs win. For most salaried employees without home loans, the new regime is simpler and cheaper. For home loan borrowers with full 80C utilisation, the old regime often wins above Rs 10L income.

Frequently asked questions

Which income tax regime is better in 2026 — old or new?
It depends on your deductions. The new regime is generally better if your total deductions are below Rs 3.75 lakh. If you have home loan interest, HRA, full 80C + 80D + NPS, the old regime typically saves more. Use this calculator to compare your exact situation.
What are income tax slabs under the new regime for FY 2025-26?
New regime slabs (FY 2025-26): Rs 0–3L = nil, Rs 3–7L = 5%, Rs 7–10L = 10%, Rs 10–12L = 15%, Rs 12–15L = 20%, above Rs 15L = 30%. Standard deduction of Rs 75,000 applies. Income up to Rs 12.75L has zero tax after rebate u/s 87A.
What deductions are allowed under the old regime?
Key deductions: 80C (Rs 1.5L), 80D (health insurance premium), HRA exemption, standard deduction (Rs 50,000), home loan interest up to Rs 2L (Sec 24b), NPS additional Rs 50,000 (80CCD(1B)), education loan interest (80E). The old regime allows 20+ deductions that the new regime eliminates.
What is Section 87A rebate and who gets it?
Section 87A gives full tax relief if net taxable income is up to Rs 5 lakh (old regime) or Rs 7 lakh (new regime). Under the new regime for FY 2025-26, income up to Rs 12.75 lakh effectively has zero tax after standard deduction (Rs 75,000) and 87A rebate.
How is surcharge calculated on income tax?
Surcharge applies on base tax: 10% for income Rs 50L–1Cr, 15% for Rs 1–2Cr, 25% for Rs 2–5Cr, 37% for above Rs 5Cr (old regime only — new regime caps surcharge at 25%). Health and Education Cess of 4% is levied on tax + surcharge.