Every year, millions of salaried Indians face the same dilemma when their employer asks: "Which tax regime do you want?" The choice between the old tax regime and the new tax regime can mean a difference of thousands — sometimes even lakhs — in your annual tax liability. Yet most people pick one without really doing the math.
This guide breaks down both regimes for FY 2024-25 (AY 2025-26) with real salary examples so you can make an informed decision rather than a guessed one.
The Two Regimes at a Glance
India currently offers two parallel income tax systems. You can switch between them every year (if you're a salaried employee without business income). The key difference is simple: the old regime lets you claim more deductions, while the new regime gives you lower tax rates but takes away most deductions.
Old Tax Regime Slabs (FY 2024-25)
The old regime has been around for decades and allows a wide array of deductions under Chapter VI-A. Here are the tax slabs under the old regime:
| Income Slab | Tax Rate |
|---|---|
| Up to ₹2,50,000 | Nil |
| ₹2,50,001 – ₹5,00,000 | 5% |
| ₹5,00,001 – ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
Additionally, a rebate under Section 87A means zero tax if your taxable income is ₹5 lakh or less. A standard deduction of ₹50,000 applies automatically for salaried individuals.
New Tax Regime Slabs (FY 2024-25)
The new regime, revamped significantly in Budget 2023, is now the default regime for FY 2024-25. It offers more granular slabs and a higher basic exemption:
| Income Slab | Tax Rate |
|---|---|
| Up to ₹3,00,000 | Nil |
| ₹3,00,001 – ₹7,00,000 | 5% |
| ₹7,00,001 – ₹10,00,000 | 10% |
| ₹10,00,001 – ₹12,00,000 | 15% |
| ₹12,00,001 – ₹15,00,000 | 20% |
| Above ₹15,00,000 | 30% |
Under the new regime, salaried employees get a standard deduction of ₹75,000 (increased from ₹50,000 in Budget 2024). The Section 87A rebate covers income up to ₹7 lakh, making the effective tax zero for incomes up to ₹7.75 lakh after standard deduction.
Important: The new tax regime is now the DEFAULT. If you do not explicitly inform your employer or file your ITR under the old regime, you will automatically be taxed under the new regime.
What You Lose in the New Regime
The trade-off for lower rates in the new regime is the loss of most popular deductions. Here are the key ones you cannot claim:
- Section 80C (up to ₹1.5 lakh): PPF, ELSS, LIC premium, EPF, home loan principal, NSC, Sukanya Samriddhi, etc.
- Section 80D: Health insurance premiums for self and family (up to ₹25,000–₹1 lakh)
- HRA exemption: If you pay rent, you cannot claim House Rent Allowance exemption
- Section 24(b): Home loan interest deduction (up to ₹2 lakh for self-occupied property)
- LTA (Leave Travel Allowance): Tax-free leave travel benefits are not available
- Section 80TTA / 80TTB: Savings account interest deduction
- Chapter VI-A deductions: 80E (education loan), 80G (donations), 80CCD(1B) NPS contribution (partial), etc.
Note: Employer's contribution to NPS under Section 80CCD(2) — up to 10% of basic salary — is still available in the new regime. This is a meaningful deduction for those whose employers offer NPS.
Real Salary Examples: Tax in Both Regimes
Let's look at actual numbers. We'll assume the individual has the following deductions in the old regime: ₹1.5L (80C) + ₹25K (80D) + ₹60K (HRA) + ₹50K (standard deduction) = ₹2.85 lakh in total deductions. New regime assumes only the ₹75K standard deduction.
| Gross Salary | Taxable Income (Old) | Tax (Old Regime) | Taxable Income (New) | Tax (New Regime) | Better Regime |
|---|---|---|---|---|---|
| ₹8,00,000 | ₹5,15,000 | ₹13,300 | ₹7,25,000 | ₹23,400 | Old |
| ₹12,00,000 | ₹9,15,000 | ₹1,02,700 | ₹11,25,000 | ₹97,500 | New |
| ₹15,00,000 | ₹12,15,000 | ₹1,72,900 | ₹14,25,000 | ₹1,50,000 | New |
| ₹20,00,000 | ₹17,15,000 | ₹3,24,200 | ₹19,25,000 | ₹3,07,500 | New |
Note: All figures are approximate and include 4% health & education cess. Surcharge not applicable here. Calculations assume deductions of ₹2.85L in old regime and ₹75K standard deduction in new regime.
Why Old Regime Wins at ₹8L?
At ₹8 lakh salary, after claiming ₹2.85 lakh in deductions, taxable income drops to ₹5.15 lakh. Under the old regime, the 87A rebate partially offsets tax, making the bill very low. In the new regime, even with lower rates, the higher taxable income (₹7.25L) creates a larger tax outgo. So at lower salaries with high deductions, the old regime often wins.
Why New Regime Wins at ₹12L and Above?
As income grows, the incremental benefit of deductions stays capped (80C stays at ₹1.5L regardless of salary) while the new regime's lower rates apply on a progressively larger base. This makes the new regime more attractive for higher incomes, especially if the taxpayer doesn't have a home loan interest deduction or HRA.
The Golden Rule of Thumb
If your total eligible deductions exceed ₹3,75,000 — stick with the old regime. If your deductions are below ₹3,75,000 — the new regime will likely save you more tax. This breakeven figure includes the standard deduction of ₹50,000 (old regime) already factored in.
Here's how to calculate your total deductions quickly:
- Standard Deduction: ₹50,000 (automatic)
- Section 80C investments: up to ₹1,50,000
- Health insurance (80D): ₹25,000–₹50,000
- HRA exemption: depends on rent paid and city
- Home loan interest (Section 24b): up to ₹2,00,000
- NPS 80CCD(1B): up to ₹50,000
Add up all the deductions you can legitimately claim. If the total crosses ₹3.75 lakh, the old regime works in your favour. If you're below that — go new.
Who Should Choose the Old Regime?
- Salaried employees who pay rent and live in a metro (high HRA exemption)
- Home loan borrowers who claim ₹2L interest deduction under Section 24(b)
- Those who diligently max out 80C via EPF, PPF, ELSS, LIC
- People with health insurance for parents (extra ₹25,000–₹50,000 deduction under 80D)
- Those with education loan interest (80E) or NPS top-up (80CCD(1B))
Who Should Choose the New Regime?
- Young earners living with parents (no HRA) and with no home loan
- Freelancers and consultants with limited deductions (note: for business income, switching back annually is not allowed)
- High earners above ₹15 lakh who have already maxed out deductions
- Anyone who finds tax planning complex and wants simplicity
- Employees in tier-2 cities with low rent and minimal 80C discipline
Can You Switch Regimes Every Year?
Yes — salaried individuals with no business income can switch between the old and new regime every year. This is a key flexibility that lets you make the optimal choice annually based on your deductions that year. However, if you have business income (Schedule BP in ITR), you can switch back only once in your lifetime.
New Regime as Default: What You Must Do
Since FY 2024-25, the new regime is the default. If you want the old regime, you must:
- Inform your employer at the beginning of the financial year (typically April) via a written declaration
- Submit the old regime declaration so your employer deducts correct TDS
- File ITR under the old regime and submit Form 10-IEA if required
If you miss declaring to your employer, don't panic — you can still choose the old regime when filing your ITR, and any excess TDS deducted will be refunded.
Verdict
There is no universally better regime — it depends entirely on your income level and deductions. Run the numbers every April. For most people with a home loan + 80C + health insurance, the old regime still saves more tax at income levels up to ₹15 lakh. At ₹20 lakh and above with limited deductions, the new regime often wins. Use the Arthmantra tax calculator to compare both in under a minute.
Compare Your Tax in Both Regimes Instantly
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