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India's income tax system offers two parallel tax regimes for individuals and HUFs: the Old Tax Regime and the New Tax Regime. The Old Tax Regime has existed for decades and allows taxpayers to claim a wide array of deductions and exemptions — including HRA, LTA, standard deduction, 80C investments, 80D health insurance, home loan interest under Section 24(b), and many more — but uses higher tax slab rates. The New Tax Regime, introduced in Budget 2020 and made the default regime from FY 2023-24 (AY 2024-25), offers significantly lower slab rates — 0%, 5%, 10%, 15%, 20%, and 30% — but disallows most deductions and exemptions except a few like the standard deduction of ₹50,000 (added from FY 2023-24), employer NPS contribution under 80CCD(2), and gratuity/leave encashment exemptions. Under the new regime for AY 2024-25, income up to ₹3 lakh is taxed at 0%, ₹3-6 lakh at 5%, ₹6-9 lakh at 10%, ₹9-12 lakh at 15%, ₹12-15 lakh at 20%, and above ₹15 lakh at 30%. The Section 87A rebate under the new regime is ₹25,000 (making income up to ₹7 lakh effectively tax-free), compared to ₹12,500 under the old regime (income up to ₹5 lakh tax-free). Surcharge rates apply on income above ₹50 lakh. The new regime is the default from FY 2023-24 — taxpayers must actively opt for the old regime when filing returns.
Tax Payable (Old) = Tax on Taxable Income after all deductions × applicable slab rates − Rebate u/s 87A + Surcharge + 4% Health & Education Cess; Tax Payable (New) = Tax on Gross Income (after standard deduction only) × new slab rates − Rebate u/s 87A (₹25,000) + Surcharge + 4% Cess
- 1Calculate gross total income: salary, house property, capital gains, business income, other sources — same for both regimes.
- 2Under the old regime: deduct all eligible exemptions (HRA, LTA, standard deduction ₹50,000) and deductions (80C up to ₹1.5L, 80D, 80CCD(1B), 24(b), etc.) to arrive at taxable income; apply old regime tax slabs.
- 3Under the new regime: deduct only standard deduction (₹50,000 for salaried), employer NPS (80CCD(2)), and family pension standard deduction (₹15,000); apply new regime tax slabs to remaining income.
- 4Apply Section 87A rebate: ₹12,500 if taxable income ≤ ₹5 lakh (old regime); ₹25,000 if taxable income ≤ ₹7 lakh (new regime) — this makes income up to ₹7 lakh completely tax-free in the new regime.
- 5Calculate surcharge if applicable: 10% on income ₹50L-₹1Cr, 15% on ₹1Cr-₹2Cr, 25% on ₹2Cr-₹5Cr (new regime caps at 25%), 37% on above ₹5Cr under old regime (capped at 25% under new regime too from FY23-24).
- 6Add 4% Health and Education Cess on total tax (including surcharge) for both regimes.
- 7Compare final tax liability under both regimes; choose whichever is lower — salaried employees must inform their employer of their choice at the beginning of the year; the choice can be changed when filing ITR.
With high deductions, old regime wins at ₹10 lakh income
Old regime taxable income: ₹10L - ₹50K SD - ₹1.2L HRA - ₹1.5L 80C - ₹25K 80D = ₹6.55L; Tax = ₹32,500 after slabs, less rebate. New regime: ₹10L - ₹50K = ₹9.5L taxable; Tax = ₹54,600. Old regime clearly better here.
With limited deductions, new regime wins decisively at ₹15 lakh
Old regime taxable income: ₹15L - ₹50K - ₹50K = ₹14L; Tax = ₹2,29,840. New regime: ₹15L - ₹50K = ₹14.5L; Tax = ₹1,45,600 (5%×3L + 10%×3L + 15%×3L + 20%×2.5L = ₹1,45,000 + cess). New regime wins.
Standard deduction ₹50,000 counts; typical salaried person with 80C+80D+HRA easily crosses this
New regime tax on ₹11.5L (after SD) = ₹90,000. For old regime to match, taxable income must be ≤ ₹9.5L after all deductions, meaning deductions must total ≥ ₹2.5L beyond SD — achievable with 80C (₹1.5L) + 80D (₹25K) + HRA.
At ₹30 lakh, most individuals benefit from new regime unless deductions are very high
At higher incomes, the lower slab rates in new regime often outweigh the benefit of deductions. The cross-over point shifts as income rises — at ₹30L+, new regime typically wins even with standard deductions.
Annual tax planning for salaried employees to decide which regime to declare to their employer at the start of the financial year., representing an important application area for the Old Vs New Tax Regime in professional and analytical contexts where accurate old vs new tax regime calculations directly support informed decision-making, strategic planning, and performance optimization
Optimising salary structure — employees can request their HR to restructure CTC with more tax-free components in old regime, or simplify structure in new regime., representing an important application area for the Old Vs New Tax Regime in professional and analytical contexts where accurate old vs new tax regime calculations directly support informed decision-making, strategic planning, and performance optimization
Financial advisors comparing both regimes for clients with different income and deduction profiles to minimise overall tax outgo., representing an important application area for the Old Vs New Tax Regime in professional and analytical contexts where accurate old vs new tax regime calculations directly support informed decision-making, strategic planning, and performance optimization
Industry professionals rely on the Old Vs New Tax Regime for operational old vs new tax regime calculations, client deliverables, regulatory compliance reporting, and strategic planning in business contexts where old vs new tax regime accuracy directly impacts financial outcomes and organizational performance
Estimating take-home salary for job offers and negotiations by computing net-of-tax salary under both regimes., representing an important application area for the Old Vs New Tax Regime in professional and analytical contexts where accurate old vs new tax regime calculations directly support informed decision-making, strategic planning, and performance optimization
Senior Citizens (60-79 years)
{'title': 'Senior Citizens (60-79 years)', 'body': 'Under the old regime, senior citizens have a higher basic exemption limit of ₹3 lakh (vs ₹2.5 lakh for others). Super senior citizens above 80 years get ₹5 lakh exemption. Under the new regime, there is no differentiation — the same slabs apply to all age groups, starting from ₹3 lakh for everyone.'}
Business Income Taxpayers
{'title': 'Business Income Taxpayers', 'body': 'Individuals with business or professional income who switch from old to new regime can only go back to old regime once in their lifetime. After switching back to old, they cannot move to new again (unless they cease business income). This lock-in rule makes regime selection critical for business owners.'}
HUF and Firms
In the Old Vs New Tax Regime, this scenario requires additional caution when interpreting old vs new tax regime results. The standard formula may not fully account for all factors present in this edge case, and supplementary analysis or expert consultation may be warranted. Professional best practice involves documenting assumptions, running sensitivity analyses, and cross-referencing results with alternative methods when old vs new tax regime calculations fall into non-standard territory.
NRI Taxation
However, NRIs are taxed only on income accrued or received in India. The ₹2.5 lakh basic exemption and Section 87A rebate are available to NRIs under the old regime only (not available to NRIs under the new regime for rebate).'}
| Income Range | Old Regime Rate | New Regime Rate |
|---|---|---|
| Up to ₹2,50,000 | Nil | — |
| Up to ₹3,00,000 | — | Nil |
| ₹2,50,001 – ₹5,00,000 | 5% | — |
| ₹3,00,001 – ₹6,00,000 | — | 5% |
| ₹5,00,001 – ₹10,00,000 | 20% | — |
| ₹6,00,001 – ₹9,00,000 | — | 10% |
| ₹9,00,001 – ₹12,00,000 | — | 15% |
| ₹10,00,001 – ₹12,00,000 | 30% | — |
| ₹12,00,001 – ₹15,00,000 | 30% | 20% |
| Above ₹15,00,000 | 30% | 30% |
| 87A Rebate | ₹12,500 (income ≤ ₹5L) | ₹25,000 (income ≤ ₹7L) |
| Standard Deduction | ₹50,000 | ₹50,000 (from FY23-24) |
Which tax regime should I choose for FY 2024-25?
It depends on your total deductions and exemptions. If your total deductions (HRA + 80C + 80D + home loan interest + NPS + LTA + other exemptions) are very high — typically above ₹3.75 lakh for ₹12L income — the old regime may save more tax. For individuals with limited deductions (no HRA, minimal 80C), the new regime almost always wins due to lower slab rates. Use an online tax calculator or compare both scenarios.
Is the new tax regime the default from FY 2023-24?
Yes. From FY 2023-24 (AY 2024-25), the new tax regime is the default. If you do not inform your employer or file your return under the old regime, you will be taxed under the new regime automatically. Salaried employees must declare their regime choice to the employer at the start of the financial year (typically via a declaration form). You can switch regimes when filing your ITR, but this comes with restrictions for business income taxpayers.
What deductions are still allowed under the new tax regime?
The new regime allows: standard deduction of ₹50,000 for salaried employees and pensioners (added from FY 2023-24); employer's NPS contribution under Section 80CCD(2); gratuity exemption; leave encashment exemption; voluntary retirement scheme (VRS) compensation; death-cum-retirement gratuity; HRA if paid by employer (only employer component, not full exemption); interest on home loan for let-out property (not self-occupied). Most other deductions like 80C, 80D, HRA, 80CCD(1B), 24(b) for self-occupied are disallowed.
What is the Section 87A rebate under both regimes?
Under the old tax regime: ₹12,500 rebate if total income does not exceed ₹5 lakh — making income up to ₹5 lakh effectively zero tax. Under the new tax regime: ₹25,000 rebate if total income does not exceed ₹7 lakh — making income up to ₹7 lakh effectively zero tax. The rebate is deducted from the computed tax before adding cess.
Can I switch between the old and new regime every year?
Salaried individuals and those without business income can switch regimes every year when filing their ITR. However, individuals with business or professional income can switch to the old regime only once in their lifetime (after which they are locked into old regime for subsequent years unless they cease business income).
What are the surcharge rates under both regimes for high earners?
Old regime: 10% surcharge on income ₹50L-₹1Cr; 15% on ₹1Cr-₹2Cr; 25% on ₹2Cr-₹5Cr; 37% on above ₹5Cr (37% was reduced to 25% for new regime in Budget 2023). New regime: maximum surcharge is capped at 25% (for income above ₹2 Cr), which means new regime is significantly better for ultra-high earners above ₹5Cr income.
Does home loan interest deduction help under old regime?
Yes. Under Section 24(b), you can claim up to ₹2 lakh deduction on home loan interest for a self-occupied property under the old regime. This is not available under the new regime for self-occupied property. For let-out properties, the actual interest can still be claimed under the new regime (there is no cap, but losses cannot be set off against other income).
How does the standard deduction differ between regimes?
The standard deduction of ₹50,000 is now available in both regimes from FY 2023-24. Previously it was only in the old regime. This was a major update in Budget 2023 that made the new regime more attractive for salaried employees and pensioners. This is particularly important in the context of old vs new tax regime calculations, where accuracy directly impacts decision-making. Professionals across multiple industries rely on precise old vs new tax regime computations to validate assumptions, optimize processes, and ensure compliance with applicable standards. Understanding the underlying methodology helps users interpret results correctly and identify when additional analysis may be warranted.
Pro Tip
The break-even deduction amount — total deductions above which old regime becomes better — is approximately ₹3.75 lakh for income of ₹12L, ₹4.25L for ₹15L income, and ₹5L+ for ₹20L income. If your combined HRA + 80C + 80D + home loan + NPS exceeds this threshold, old regime is better. Use a regime comparison calculator every April.
Alam mo ba?
When the new tax regime was first introduced in Budget 2020, it was chosen by less than 10% of taxpayers. By FY 2023-24 (after it became the default), over 70% of new filers chose the new regime — showing that most Indians with lower deduction levels find the simpler, lower-rate system more beneficial.