Old vs New Tax Regime 2026 - Which Saves More Tax?
New regime has lower slab rates but NO deductions. Old regime has higher rates but allows 80C, HRA, 80D deductions. Your choice depends on deduction profile.
📊Tax Slab Comparison FY 2025-26
| Income Range | Old Regime | New Regime |
|---|---|---|
| Up to 2.5L | Nil | Nil |
| 2.5-3L | 5% | Nil |
| 3-5L | 5% | 5% |
| 5-6L | 20% | 5% |
| 6-7L | 20% | 10% |
| 7-9L | 20% | 10% |
| 9-10L | 20% | 15% |
| 10-12L | 30% | 15% |
| 12-15L | 30% | 20% |
| Above 15L | 30% | 30% |
The new regime is default from FY 2024-25. You must actively opt for old regime if deductions make it better for you.
🧮Quick Decision Formula
Calculate Your Deductions
Section 80C (max 1.5L): PPF, ELSS, LIC, FD, home loan principal. Section 80D (health insurance): 25K (individual) to 1L (senior citizen family).
HRA exemption: 50% rent, 10% basic, or 40% basic (lowest of three). Home loan interest 80EEA/24b: actual interest paid.
NPS 80CCD(1B): extra 50K above 80C. Standard deduction: 75K (available in both).
Professional tax: up to 2500. Total deductions in old regime: Add all above.
If total > 4 lakh, old regime wins.
Example 1: Salaried Employee with HRA
Income 12 LPA, Delhi rent 30K/month (HRA receivable 3.6L). Deductions: 80C (1.5L) + HRA (1.8L actual or 40% basic = 1.6L, take lower = 1.6L) + 80D (25K) + NPS (50K) = 3.75L.
Old regime saves 15000-30000 more tax than new regime.
Example 2: Salaried without HRA
Income 12 LPA, owns home (no HRA). Deductions: 80C (50K) + 80D (25K) + home loan interest (80K) + NPS (50K) = 2L.
New regime saves 40000-60000 more tax.
Example 3: High Income
Income above 20L with maximum deductions. Almost always old regime wins. But many high-earners choose new for simplicity.
❌Deductions NOT Available in New Regime
Section 80C (PPF, ELSS, LIC, etc.)
Maximum 1.5L. Available ONLY in old regime.
If you invest in PPF (1L) and ELSS (50K), you save 22500 (30% of 75K) tax in old regime. In new regime, these investments give ZERO tax benefit.
HRA Exemption
Typically 1.5-2L/year for salaried in metros. New regime gives you nothing. You pay tax on full gross salary including HRA received.
Section 80D (Health Insurance Premium)
25K (individual) to 1L (senior citizen family). Not available in new regime. Annual health insurance premium is wasted tax-wise in new regime.
Home Loan Interest (Section 24b)
1.5L deduction for self-occupied property. Not available in new regime.
Only principal repayment (80EEA, limited to 1.5L per year for new home purchase) is available in new regime.
Professional Tax
Up to 2500/year. Not in new regime. State professional tax paid is wasted in new regime.
Available in Both Regimes
Standard deduction 75K (as of FY24), employer NPS contribution 80CCD(2), Agniveer contribution.
🔄Switching Between Regimes - Your Options
Salaried Employees
You can switch every year at ITR filing. Year 1 old regime, Year 2 new regime, Year 3 back to old - completely flexible.
Choose whichever saves more tax each year.
Business/Professional Income
If you chose new regime, switching back to old is a ONE-TIME option. Once you go back to old regime, you CANNOT choose new regime again for business income.
Salaried income can still switch freely.
When to Switch
If income decreased: switch to new regime (low slabs help more). If income increased with high deductions: stay old regime (deductions offset higher income).
Run tax calculator at incometax.gov.in each year.
💰Real Tax Calculation Examples
Person A: 12 LPA Salary, Living in Rented Flat, Delhi
Old regime: Gross 12L, HRA deduction 1.8L (actual 30K/month), 80C deduction 1.5L, 80D deduction 25K, NPS 50K, standard deduction 75K = total 3.95L deductions. Taxable = 8.05L.
Tax = approx 1.25L. New regime: Gross 12L, standard 75K deduction only.
Taxable = 11.25L. Tax = approx 1.55L.
SAVING in old regime: 30000/year.
Person B: 12 LPA Salary, Owns Home, No HRA
Old regime: Gross 12L, 80C (50K), 80D (25K), home loan interest (80K), NPS (50K), standard (75K) = 2.8L deductions. Taxable = 9.2L.
Tax = 1.45L. New regime: Gross 12L, standard 75K.
Taxable = 11.25L. Tax = 1.55L.
SAVING in old regime: 10000 only. Difference narrower because fewer deductions.
Person C: High Income 25 LPA with Full Deductions
Old regime: 25L, deductions 4L, taxable 21L. Tax = 5.8L. New regime: 25L, deductions 75K, taxable 24.25L. Tax = 6.2L. SAVING in old regime: 40000+.
The ₹12 lakh game-changer
💡The ₹12 lakh game-changer
Under the new regime, Section 87A rebate makes income up to ₹12 lakh effectively tax-free. This is the single biggest reason most people earning under ₹12L should choose new regime — zero tax regardless of deductions.
New regime is DEFAULT — don't forget to opt out
💡New regime is DEFAULT — don't forget to opt out
From FY 2024-25, new regime is automatic. If you want old regime, you must inform your employer during tax declaration OR select it while filing ITR. Missing this means you lose HRA, 80C, and all other deductions for that year.
When old regime clearly wins
💡When old regime clearly wins
If you have a home loan (₹2L interest deduction), pay significant rent (HRA exemption ₹1.5-3L), invest in NPS (₹50K extra deduction), and max out 80C — total deductions exceed ₹5L. At ₹15L income, old regime saves ₹40,000-60,000 more than new regime.
Rule of thumb: deductions above ₹3.75 lakh = old regime wins. Below ₹2.5 lakh = new regime wins. Between ₹2.5-3.75L = calculate both using our income tax calculator.
❓Frequently Asked Questions
March 2026