Old vs New Tax Regime: Key Differences
India currently has two income tax regimes. The old regime offers various deductions and exemptions (80C, 80D, HRA, etc.) but has higher tax rates. The new regime (default from FY 2023-24) has lower tax rates but eliminates most deductions.
Choosing the right regime can save you thousands — or even lakhs — in taxes each year. The decision depends primarily on how many deductions you can claim.
Tax Slabs Comparison: FY 2025-26
New Tax Regime Slabs
| Income Slab | Tax Rate |
|---|---|
| Up to ₹4,00,000 | Nil |
| ₹4,00,001 to ₹8,00,000 | 5% |
| ₹8,00,001 to ₹12,00,000 | 10% |
| ₹12,00,001 to ₹16,00,000 | 15% |
| ₹16,00,001 to ₹20,00,000 | 20% |
| ₹20,00,001 to ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
Standard deduction of ₹75,000 is available. Income up to ₹12,00,000 is effectively tax-free (after rebate under Section 87A).
Old Tax Regime Slabs
| Income Slab | Tax Rate |
|---|---|
| Up to ₹2,50,000 | Nil |
| ₹2,50,001 to ₹5,00,000 | 5% |
| ₹5,00,001 to ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
Standard deduction of ₹50,000 is available. Additional deductions under 80C, 80D, 80CCD, HRA, LTA, and more are allowed.
Deductions Available Under Old Regime (Not in New)
| Section | Deduction | Max Limit |
|---|---|---|
| 80C | PPF, ELSS, EPF, life insurance, tuition fees | ₹1,50,000 |
| 80CCD(1B) | NPS additional contribution | ₹50,000 |
| 80D | Health insurance premium | ₹25,000 - ₹1,00,000 |
| Section 24(b) | Home loan interest | ₹2,00,000 |
| HRA | House Rent Allowance | Actual HRA rules |
| LTA | Leave Travel Allowance | Actual travel costs |
| 80E | Education loan interest | No limit |
| 80G | Charitable donations | 50-100% of donation |
| 80TTA | Savings account interest | ₹10,000 |
Real Salary Examples: Old vs New Regime
Example 1: ₹8 Lakh Salary (Low Deductions)
CTC: ₹8,00,000 | Deductions claimed: ₹1,50,000 (80C only)
| Parameter | New Regime | Old Regime |
|---|---|---|
| Gross Salary | ₹8,00,000 | ₹8,00,000 |
| Standard Deduction | ₹75,000 | ₹50,000 |
| 80C Deduction | - | ₹1,50,000 |
| Taxable Income | ₹7,25,000 | ₹6,00,000 |
| Tax Payable | ₹0 (rebate) | ₹32,500 |
Winner: New Regime — saves ₹32,500. The new regime's higher rebate threshold (₹12L) makes it clearly better for lower salaries.
Example 2: ₹15 Lakh Salary (Moderate Deductions)
CTC: ₹15,00,000 | Deductions: 80C (₹1.5L) + 80D (₹25K) + HRA (₹2L)
| Parameter | New Regime | Old Regime |
|---|---|---|
| Gross Salary | ₹15,00,000 | ₹15,00,000 |
| Standard Deduction | ₹75,000 | ₹50,000 |
| HRA Exemption | - | ₹2,00,000 |
| 80C | - | ₹1,50,000 |
| 80D | - | ₹25,000 |
| Taxable Income | ₹14,25,000 | ₹10,75,000 |
| Tax Payable | ₹1,53,750 | ₹1,37,500 |
Winner: Old Regime — saves ₹16,250 when deductions exceed ₹3.75 lakh.
Example 3: ₹25 Lakh Salary (Heavy Deductions)
CTC: ₹25,00,000 | Deductions: 80C (₹1.5L) + NPS (₹50K) + 80D (₹50K) + HRA (₹3L) + Home loan (₹2L)
| Parameter | New Regime | Old Regime |
|---|---|---|
| Taxable Income | ₹24,25,000 | ₹16,50,000 |
| Tax Payable | ₹4,21,250 | ₹3,07,500 |
Winner: Old Regime — saves ₹1,13,750 when claiming ₹7.5 lakh in deductions.
The Breakeven Point: When Does Old Regime Win?
The key question is: how much in deductions do you need to claim for the old regime to be worthwhile?
As a general rule for FY 2025-26:
- Income up to ₹12 lakh: New regime almost always wins (₹0 tax due to rebate)
- Income ₹12-15 lakh: Old regime wins if deductions exceed ~₹3.75 lakh
- Income ₹15-20 lakh: Old regime wins if deductions exceed ~₹4 lakh
- Income ₹20-30 lakh: Old regime wins if deductions exceed ~₹4.25 lakh
- Income above ₹30 lakh: Old regime wins if deductions exceed ~₹5 lakh
Use our income tax calculator to compare both regimes with your exact salary and deductions.
Who Should Choose the New Tax Regime?
- People with low deductions (less than ₹3.75 lakh)
- Young professionals in early career who haven't started investing heavily
- People living in their own house (no HRA claim)
- Those who don't have a home loan
- Anyone earning up to ₹12 lakh (effectively tax-free)
- People who prefer simplicity over managing investments for tax saving
Who Should Choose the Old Tax Regime?
- People claiming HRA with high rent in metro cities
- Those with a home loan (₹2 lakh interest deduction under Section 24)
- People who actively invest in 80C instruments (PPF, ELSS, EPF)
- Those with health insurance for family and parents (80D up to ₹1 lakh)
- Employees contributing to NPS (additional ₹50,000 under 80CCD 1B)
- Anyone with total deductions exceeding ₹3.75-4 lakh
Quick Decision Framework
Follow these steps to decide quickly:
- Step 1: Add up all your deductions (80C + 80D + HRA + home loan interest + NPS + others)
- Step 2: If total deductions < ₹3.75 lakh → choose New Regime
- Step 3: If total deductions > ₹4 lakh → choose Old Regime
- Step 4: If deductions are between ₹3.75-4 lakh → use the tax calculator for exact comparison
Common Tax-Saving Mistakes to Avoid
- Not comparing both regimes: Many people stick with the old regime out of habit without checking if the new regime is better for their situation. Always compare!
- Investing only in 80C: Don't forget 80D (health insurance), NPS (80CCD 1B), and home loan interest (Section 24). These can add ₹3-4 lakh in additional deductions.
- Last-minute tax saving: Don't panic-buy insurance or invest in bad schemes just to save tax in March. Plan your tax-saving investments at the start of the financial year.
- Ignoring employer NPS contribution: Under Section 80CCD(2), employer's NPS contribution up to 14% of basic salary is deductible under BOTH regimes. This is one of the few deductions available in the new regime too.
Frequently Asked Questions
For a ₹10 lakh salary, the new tax regime is almost always better. After the ₹75,000 standard deduction, your taxable income would be ₹9.25 lakh, which falls under the ₹12 lakh rebate threshold — meaning zero tax. Under the old regime, you'd need significant deductions to achieve zero tax.
Yes, salaried employees can switch between old and new tax regime every financial year. You can choose the regime while filing your ITR. For tax deduction at source during the year, inform your employer about your preferred regime.
Under the new regime, very few deductions are available: standard deduction of ₹75,000, employer's NPS contribution under 80CCD(2), and exemption for family pension under Section 57. Most other deductions like 80C, 80D, HRA, and home loan interest are not available.
Yes, from FY 2023-24 onwards, the new tax regime is the default. If you don't specifically choose the old regime, taxes will be calculated under the new regime. You need to opt for the old regime by filing Form 10-IEA before the due date.
The easiest way is to use our income tax calculator. Enter your salary details, add your deductions, and the calculator will show you the exact tax under both old and new regimes side by side, highlighting which one saves you more.