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A salary tax calculator India does more than subtract numbers from your CTC. It answers the question that matters most to every salaried employee: how much money will actually land in my bank account each month? Understanding the gap between your cost-to-company and your take-home pay requires navigating two tax regimes, a maze of deductions, and rules that shift with every Union Budget. This guide breaks down exactly how income tax on salary is calculated for FY 2025-26, which regime saves you more, and how to use a salary tax calculator to get a precise, verifiable answer in seconds.
A salary tax calculator India takes your gross salary, applies the eligible exemptions and deductions, and then calculates the income tax payable under the regime you select. The output is your net take-home pay — the amount credited to your bank account after tax deduction at source (TDS), provident fund contribution, and professional tax. The calculation itself is a multi-step process: first, determine gross salary by adding basic pay, dearness allowance, HRA, special allowance, and any other taxable component. Then subtract exemptions like HRA (old regime only) and deductions like the standard deduction, Section 80C investments, and Section 80D health insurance premiums. The resulting figure is your taxable income. Apply the slab rates to that taxable income, add surcharge if applicable, add the 4% health and education cess, and subtract any rebate under Section 87A. What remains is your annual tax liability. Divide by twelve, and you have the monthly TDS your employer will deduct. A salary tax calculator automates this entire sequence, eliminating the arithmetic errors that creep into manual computation.
India operates two parallel tax regimes, and the slabs differ significantly. The new regime, which is the default from FY 2025-26, offers lower rates and a higher basic exemption limit but strips away most deductions. The old regime retains higher rates but allows you to reduce taxable income through investments and expenses. Neither regime is universally better — the right choice depends entirely on how many deductions you can legitimately claim.
The new regime, governed by Section 115BAC, was overhauled in Budget 2025 to provide substantial relief to middle-income taxpayers. The basic exemption limit rose to ₹4 lakh, and the slab structure was redesigned to offer smoother progression. Here are the rates that apply for FY 2025-26 (AY 2026-27):
| Annual Taxable Income | Tax Rate |
|---|---|
| Up to ₹4,00,000 | Nil |
| ₹4,00,001 – ₹8,00,000 | 5% |
| ₹8,00,001 – ₹12,00,000 | 10% |
| ₹12,00,001 – ₹16,00,000 | 15% |
| ₹16,00,001 – ₹20,00,000 | 20% |
| ₹20,00,001 – ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
These slabs apply uniformly to all age groups under the new regime — there is no higher exemption limit for senior citizens. The critical feature is the Section 87A rebate. If your total taxable income does not exceed ₹12 lakh, the rebate makes your tax liability nil. For salaried individuals, the ₹75,000 standard deduction means a gross salary of up to ₹12.75 lakh can result in zero tax. This single provision has made the new regime the default choice for a large swath of salaried taxpayers.
The old regime retains its familiar three-tier structure for individuals below 60 years. Senior citizens (60 to 80 years) and super senior citizens (above 80 years) have higher basic exemption limits, which the new regime does not offer.
| Annual Taxable Income | Tax Rate (Below 60) | Tax Rate (60–80) | Tax Rate (80+) |
|---|---|---|---|
| Up to ₹2,50,000 | Nil | Nil | Nil |
| ₹2,50,001 – ₹3,00,000 | 5% | Nil | Nil |
| ₹3,00,001 – ₹5,00,000 | 5% | 5% | Nil |
| ₹5,00,001 – ₹10,00,000 | 20% | 20% | 20% |
| Above ₹10,00,000 | 30% | 30% | 30% |
The old regime's appeal lies entirely in its deductions. If you can claim substantial exemptions — HRA, Section 80C up to ₹1.5 lakh, Section 80D health insurance, home loan interest, and NPS contributions — your taxable income can drop significantly, making the higher slab rates less painful. The break-even point varies by individual, but the general rule is that the more deductions you claim, the more the old regime makes sense.
The deduction landscape is where the two regimes diverge most sharply. Understanding what you can and cannot claim determines which regime works for you.
Every salaried employee and pensioner gets a flat standard deduction. Under the new regime, it is ₹75,000. Under the old regime, it is ₹50,000. This deduction requires no investment proof and is automatically applied by your employer when calculating TDS. It is the single largest reason why the new regime is attractive at moderate income levels.
Section 80C allows deductions up to ₹1,50,000 per financial year across a range of investments and expenses: Employees' Provident Fund (EPF) contributions, Public Provident Fund (PPF), Equity Linked Savings Schemes (ELSS), life insurance premiums, principal repayment on home loans, children's tuition fees, and National Savings Certificates. The catch: 80C is available only under the old tax regime. If you opt for the new regime, you forfeit this deduction entirely. For a taxpayer in the 30% bracket, the ₹1.5 lakh 80C deduction saves ₹46,800 in tax (including cess) — a substantial sum that often tips the scale toward the old regime. A tax saving calculator can help you quantify the exact benefit.
Section 80D permits deductions for health insurance premiums paid for yourself, your spouse, dependent children, and parents. The limits for FY 2025-26 remain unchanged: up to ₹25,000 for self and family (below 60 years), up to ₹50,000 if the insured is a senior citizen, and an additional ₹25,000 or ₹50,000 for parents, depending on their age. Preventive health check-ups up to ₹5,000 are also covered within these limits. Like 80C, this deduction is unavailable under the new regime.
The National Pension System offers two distinct deductions. Section 80CCD(1B) provides an exclusive additional deduction of ₹50,000 for your own NPS contributions, over and above the ₹1.5 lakh 80C limit. This is available only under the old regime. Section 80CCD(2), however, is available under both regimes: employer contributions to NPS are deductible up to 14% of basic salary under the new regime (up from 10% under the old regime). This makes employer NPS contributions one of the few deductions that survive the shift to the new regime.
House Rent Allowance exemption under Section 10(13A) is calculated as the least of three amounts: actual HRA received, rent paid minus 10% of salary, or 50% of salary (for metro cities) or 40% (for non-metro cities). From April 2026, four additional cities — Bangalore, Hyderabad, Pune, and Ahmedabad — have been added to the metro category, expanding the 50% threshold. However, HRA exemption is available only under the old tax regime. Salaried employees who have opted for the new regime cannot claim it.
Your CTC is not your salary. It is the total cost your employer incurs to employ you, including contributions that never reach your bank account. To arrive at take-home pay, you must work through several layers of deductions. Here is the sequence:
Take-home salary is gross salary minus employer PF deduction (your contribution), professional tax, and monthly TDS. For a ₹12 lakh CTC, the take-home can vary significantly depending on regime choice, PF contribution rate, and city of residence. A salary calculator simplifies this multi-step process into a single interface.
Marginal relief is a safety valve built into the new tax regime. Without it, a taxpayer earning ₹12,00,001 would face a tax liability on the entire income, not just the ₹1 above the ₹12 lakh threshold. Since the rebate under Section 87A makes tax nil up to ₹12 lakh, crossing that threshold by even a rupee could theoretically trigger a tax bill of ₹60,000 or more — far exceeding the extra income earned. Marginal relief prevents this by capping the tax payable to the amount by which your income exceeds ₹12 lakh. So if you earn ₹12,10,000, your tax under marginal relief would be ₹10,000, not the full slab-based liability. This relief applies automatically and extends to income levels where surcharge begins, ensuring that crossing a threshold never leaves you worse off in absolute terms.
The answer is not absolute — it depends on your income and deduction profile. Consider a salaried employee with a gross salary of ₹15 lakh. Under the old regime, with ₹50,000 standard deduction, ₹1.5 lakh 80C, ₹50,000 NPS (80CCD(1B)), ₹25,000 80D, and ₹2 lakh HRA exemption, taxable income falls to ₹10.25 lakh. Tax liability, including cess, works out to approximately ₹1,24,800. Under the new regime, with only ₹75,000 standard deduction, taxable income is ₹14.25 lakh. Tax liability is approximately ₹97,500. The new regime saves ₹27,300 for this taxpayer.
Now consider a taxpayer with a gross salary of ₹20 lakh who claims the same deductions. Under the old regime, taxable income is ₹15.25 lakh, and tax is approximately ₹2,80,800. Under the new regime, taxable income is ₹19.25 lakh, and tax is approximately ₹1,92,400. The new regime saves ₹88,400 — a substantial margin. The pattern holds across income levels: the new regime's lower rates and higher standard deduction generally outweigh the old regime's deductions unless the deductions are exceptionally large relative to income. For most salaried employees, especially those without home loans or substantial 80C investments, the new regime is the better default.
Several factors can shift your tax liability in ways a standard calculator might not capture. Surcharge applies at 10% for income above ₹50 lakh, 15% above ₹1 crore, and 25% above ₹2 crore under the new regime. Under the old regime, income above ₹5 crore attracts a 37% surcharge — a rate the new regime caps at 25%. The 4% health and education cess applies to the total tax including surcharge. Professional tax, levied by state governments, is deductible from salary under both regimes; the maximum is ₹2,500 per year, though rates vary by state. For those with income from capital gains, rental income, or other sources beyond salary, the calculation becomes more complex, and the regime choice may interact differently with each income head.
Salary tax is calculated by adding all taxable components of your pay, subtracting eligible exemptions and deductions like the standard deduction and HRA, then applying the tax slab rates for your chosen regime. The new regime offers lower rates but fewer deductions. The old regime has higher rates but allows deductions like 80C, 80D, and HRA.
Under the new tax regime, a salaried individual with a gross salary of ₹12.75 lakh can have zero tax liability after the ₹75,000 standard deduction and the Section 87A rebate. The old regime would require substantial deductions (like ₹1.5 lakh under 80C and HRA) to match this. For most salaried taxpayers at this income level, the new regime is simpler and often more beneficial.
The standard deduction is ₹75,000 under the new tax regime and ₹50,000 under the old tax regime. It is a flat deduction from your gross salary, available without any investment proof. This is one of the key differences between the two regimes.
Take-home salary is your CTC minus employer PF contribution, gratuity (if included), professional tax, and income tax (TDS). Your CTC is not your in-hand salary. To estimate take-home, subtract these components from your gross salary, then deduct TDS based on your tax regime. Using a salary tax calculator automates this multi-step process.
No. HRA exemption under Section 10(13A) is not available under the new tax regime. It can only be claimed if you opt for the old tax regime. Under the new regime, you forgo HRA, LTA, and most other allowances in exchange for lower slab rates.
Marginal relief prevents a situation where earning slightly more pushes you into a higher tax slab, resulting in a tax liability greater than the additional income earned. It caps the tax payable on income just above a threshold (like ₹12 lakh under the new regime) to the amount by which your income exceeds that threshold. This benefit applies under the new tax regime.
No, deductions under Section 80C (like PPF, ELSS, life insurance premiums) are not available under the new tax regime. They are only claimable under the old tax regime. The new regime offers a higher standard deduction and lower tax rates but strips away most itemized deductions.
Professional tax is a state-level tax deducted from your salary by your employer. It is allowed as a deduction from your gross salary under both tax regimes before calculating taxable income. The maximum amount is typically ₹2,500 per year, though rates vary by state. It reduces your taxable income, thereby lowering your tax liability.
In closing, a salary tax calculator India transforms the most consequential financial decision for a salaried employee — regime selection and tax computation — from a bewildering exercise into a clear, data-driven choice. The new regime's higher standard deduction and Section 87A rebate make income up to ₹12.75 lakh effectively tax-free for salaried individuals, while the old regime rewards those who can marshal substantial deductions under 80C, 80D, and HRA. Run both scenarios through the income tax calculator above, compare the take-home figures side by side, and make the decision that keeps the most money in your pocket. Your salary is more than a number on a CTC letter — it is the income that funds your life. Treat the calculation with the precision it deserves.