Old vs New Tax Regime 2026: Complete Comparison
The Union Budget 2025 made the new tax regime significantly more attractive with revised slabs, higher 87A rebate, and increased standard deduction. But does that mean the old regime is obsolete? This comprehensive guide compares both regimes for FY 2026-27 so you can decide which one saves you more tax.
Tax Slab Comparison: Old vs New Regime 2026-27
The most fundamental difference between the two regimes is the tax slab structure. The new regime offers lower rates but removes most deductions and exemptions. Here is how the slabs compare:
| Income Slab (₹) | New Regime Rate | Old Regime Rate |
|---|---|---|
| Up to ₹3,00,000 | Nil | Nil |
| ₹3,00,001 – ₹6,00,000 | 5% | 5% |
| ₹6,00,001 – ₹9,00,000 | 10% | Nil (Old 6-9L: 20%) |
| ₹9,00,001 – ₹12,00,000 | 15% | 20% |
| ₹12,00,001 – ₹15,00,000 | 20% | 30% |
| Above ₹15,00,000 | 30% | 30% |
Note: Old regime slabs shown simplified. In the old regime, the 20% slab applies from ₹6L–₹12L (for individuals below 60 years) and 30% above ₹12L.
Key Differences Between Old and New Tax Regime
| Feature | New Regime (FY 2026-27) | Old Regime (FY 2026-27) |
|---|---|---|
| Standard Deduction | ₹75,000 (for salaried) | ₹50,000 (for salaried) |
| 87A Rebate | Up to ₹60,000. Tax nil if net taxable income ≤ ₹12L | Up to ₹12,500. Tax nil if net taxable income ≤ ₹5L |
| Surcharge | 10% above ₹50L, 15% above ₹1Cr, 25% above ₹2Cr, 37% above ₹5Cr. Reduced rates for new regime. | 10% above ₹50L, 15% above ₹1Cr, 25% above ₹2Cr, 37% above ₹5Cr. |
| 80C Deductions | Not allowed | Up to ₹1.5L (PPF, ELSS, LIC, EPF, etc.) |
| 80D Health Insurance | Not allowed | Up to ₹25,000 (₹50,000 for senior citizens) + ₹25,000 for parents |
| Home Loan (Sec 24) | Not allowed | Up to ₹2L on self-occupied property |
| NPS 80CCD(1B) | Not allowed | Additional ₹50,000 over 80C |
| HRA Exemption | Not allowed | Allowed (based on rent, salary, city) |
| Leave Travel Allowance | Not allowed | Allowed for domestic travel |
| House Rent (80GG) | Not allowed | Allowed for non-HRA recipients |
Income-Wise Recommendation: Which Regime is Better?
The right regime depends on your income level and how much you invest in tax-saving instruments. The table below shows the recommended regime at different income levels (assuming max deductions in old regime):
| Annual Income | New Regime Tax | Old Regime Tax (with max deductions) | Recommended Regime |
|---|---|---|---|
| ₹5,00,000 | ₹0 | ₹0 | Either (both nil) |
| ₹10,00,000 | ₹0 (after 87A rebate) | ₹0 (after 80C + 80D deductions) | Either |
| ₹12,00,000 | ₹0 | ~₹67,600 | New Regime |
| ₹15,00,000 | ~₹90,000 | ~₹71,500 | Old Regime |
| ₹20,00,000 | ~₹1,95,000 | ~₹1,56,000 | Old Regime |
| ₹50,00,000 | ~₹9,16,500 | ~₹8,73,600 | Old Regime |
| ₹1,00,00,000 | ~₹23,81,750 | ~₹23,33,850 | Old Regime |
Assumptions: New regime includes ₹75K standard deduction. Old regime includes ₹50K standard deduction + max 80C (₹1.5L) + 80D (₹50K) + NPS 80CCD(1B) (₹50K) + HRA, totalling approx ₹3.5L deductions. Tax calculated includes 4% cess. Your actual savings depend on your specific deductions. Use our Income Tax Calculator for precise results.
When the Old Regime Wins
The old regime remains better if you have significant investments and expenses that qualify for deductions:
🏠 Home Loan Borrowers
If you pay ₹2L+ in home loan interest annually under Section 24(b), the old regime saves you significant tax. Additionally, the principal repayment qualifies under 80C (up to ₹1.5L). For a ₹50L home loan at 8.5%, the interest alone in the first few years is ₹4L+, giving you ₹2L deduction each year.
💰 Heavy 80C Investors
If you max out your 80C limit of ₹1.5L through PPF, ELSS, EPF, LIC premiums, or tuition fees, the old regime rewards you with tax savings at your marginal rate. At a 30% bracket, this saves ₹45,000 directly.
🏥 Health Insurance (80D)
Families with health insurance for self, spouse, children, and elderly parents can claim up to ₹75,000 under 80D. Combined with 80C, this can bring total deductions to ₹2.25L+ before counting NPS or home loan.
📈 NPS Contributors
The old regime allows an additional ₹50,000 deduction under Section 80CCD(1B) over and above the ₹1.5L 80C limit. If you contribute to NPS for retirement, this extra deduction makes the old regime attractive even at moderate incomes.
When the New Regime Wins
The new regime is not just for people who don't invest. It offers genuine advantages in several scenarios:
📄 No Deductions / Simple Filing
If you don't have significant 80C investments (common among young professionals, freelancers, or those who just have EPF as their only investment), the new regime's lower slab rates automatically save you tax. Plus, ITR filing is simpler — no need to track and prove deductions.
🎯 Income in ₹12-15L Range
At ₹12L, the new regime charges zero tax (thanks to the ₹60K 87A rebate on net taxable income after ₹75K standard deduction). In the old regime, even with ₹2.5L deductions, you would still pay around ₹20,000+ in tax. The sweet spot for the new regime is ₹12L–₹13L.
🔁 Frequent Job Changers
If you switch jobs frequently, keeping track of HRA, LTA, and other exemptions becomes complex. The new regime eliminates this headache. Your employer also finds it easier to compute TDS without needing proof of your investment declarations.
💰 High Surcharge Mitigation
For incomes above ₹2Cr, the new regime caps surcharge at 25% compared to 37% in the old regime. This significantly reduces the effective tax rate for high-net-worth individuals. At ₹5Cr income, this difference alone can save several lakhs in tax.
How to Switch Between Tax Regimes
You are not locked into either regime permanently. You can switch every year depending on which saves you more tax. Here is how:
For Salaried Individuals
Intimate your employer at the start of the financial year by submitting Form 10-IEA (or a simple declaration) stating your chosen regime. If you want to switch back to the old regime after opting for the new one, you can do so when filing your ITR. However, if you have business income, the switch is more restrictive.
For Business / Professionals
File Form 10-IE on the income tax portal before the ITR due date (usually July 31) to opt out of the new regime. Once you opt out, you can switch back to the new regime only once in a lifetime. Business taxpayers should choose carefully.
💡 Tip: Always calculate your tax under both regimes before filing. Use the DesiCalc Income Tax Calculator to compare instantly. The calculator shows you the exact tax under both regimes so you can pick the one that saves you the most.
Section 87A Rebate: How It Works
The 87A rebate is a tax reducer that can bring your tax liability to zero if your net taxable income is below a threshold. Under the new regime for FY 2026-27, the rebate has been significantly enhanced to ₹60,000, making income up to ₹12L effectively tax-free. Under the old regime, the rebate remains at ₹12,500 for income up to ₹5L. For a detailed explanation, see our Section 87A Rebate Guide.
Frequently Asked Questions
1. Can I switch between old and new tax regime every year?
Yes, salaried individuals can switch every year. If you have business income, you can switch back and forth but only if you transition from new to old once; after that, you can only go back to new once in a lifetime.
2. Is the new regime better for someone with a home loan?
Not usually. The old regime allows up to ₹2L deduction under Section 24(b) for home loan interest plus principal repayment under 80C. If you have a large home loan, the old regime almost always works out better despite higher slab rates.
3. How is tax calculated in the new regime under the 87A rebate?
If your net taxable income (after ₹75K standard deduction) is ₹12L or less, your tax is reduced to zero via the 87A rebate of up to ₹60,000. For example, at ₹12.75L salary (₹12L net after standard deduction), tax is ₹60,000 (as per slabs), which is fully rebated.
4. What happens if my income exceeds ₹12L in the new regime?
Once your net taxable income exceeds ₹12L, the 87A rebate is no longer available (or only marginal relief applies), and you pay tax as per the slab rates. However, the new regime slab rates are lower than the old regime until ₹24L income, after which the rates converge.
5. Is the new regime mandatory? Can I still choose the old regime?
The new regime is the default regime from FY 2023-24 onwards. However, you can always choose the old regime by filing Form 10-IEA (salaried) or Form 10-IE (business). If you do not opt out, the new regime applies by default.
6. Which regime is better for income of ₹20 lakh?
At ₹20L, the old regime is typically better if you have even moderate deductions (₹2-3L through 80C, 80D, home loan). The new regime would cost you around ₹1.95L while the old regime with ₹3L deductions costs approximately ₹1.56L in tax including cess.
7. Do I need to file Form 10-IEA every year?
Yes, you should inform your employer at the start of each financial year which regime you choose. However, even if you don't file the form, you can still opt for the old regime when filing your ITR. The form is primarily for TDS purposes during the year.