Choosing between the old vs new tax regime is one of the most critical annual financial decisions for Indian taxpayers. With statutory changes introduced in recent Union Budgets, Section 115BAC (New Tax Regime) has become the default choice for all individual taxpayers.
If you are asking which is better old vs new tax regime for your salary bracket, this guide provides a step-by-step breakdown of income tax slabs, standard deductions, Section 87A rebate limits, worked case studies, and how to compare old vs new tax regime tax liability using our free online tools.
1. Overview of Old vs New Tax Regime (Section 115BAC)
The Indian Income Tax Act offers two distinct tax structures:
- New Tax Regime (Section 115BAC): Introduced to simplify tax filing by offering significantly lower slab rates across income brackets. In exchange for lower tax rates, most traditional tax exemptions (80C, 80D, HRA, home loan interest) are removed.
- Old Tax Regime: The traditional progressive tax structure with higher slab rates, but allowing taxpayers to claim extensive tax deductions and exemptions under Chapter VI-A to reduce overall taxable income.
2. Tax Slab Comparison for FY 2025-26 / AY 2026-27
Here is the exact side-by-side comparison of statutory tax slabs for individual taxpayers below 60 years of age:
| Income Bracket | New Tax Regime Slab Rate | Old Tax Regime Slab Rate (<60 Yrs) |
|---|---|---|
| Up to ₹2,50,000 | 0% (Nil) | 0% (Nil) |
| ₹2,50,001 to ₹3,00,000 | 0% (Nil) | 5% |
| ₹3,00,001 to ₹4,00,000 | 0% (Nil) | 5% |
| ₹4,00,001 to ₹5,00,000 | 5% | 5% |
| ₹5,00,001 to ₹8,00,000 | 5% | 20% |
| ₹8,00,001 to ₹10,00,000 | 10% | 20% |
| ₹10,00,001 to ₹12,00,000 | 10% (Rebate up to 12L!) | 30% |
| ₹12,00,001 to ₹16,00,000 | 15% | 30% |
| ₹16,00,001 to ₹20,00,000 | 20% | 30% |
| ₹20,00,001 to ₹24,00,000 | 25% | 30% |
| Above ₹24,00,000 | 30% | 30% |
In addition to slab rates, a 4% Health and Education Cess applies to total tax payable under both regimes.
3. Key Differences: Deductions, Exemptions & Section 87A Rebates
Standard Deduction Comparison
- New Tax Regime: Salaried individuals and pensioners receive an elevated ₹75,000 standard deduction.
- Old Tax Regime: Salaried individuals receive a ₹50,000 standard deduction.
Section 87A Tax Rebate Threshold
- New Tax Regime: Full tax rebate under Section 87A is available for taxable income up to ₹12,00,000. Combined with the ₹75,000 standard deduction, a salaried employee earning up to ₹12.75 Lakhs gross pay pays ₹0 tax.
- Old Tax Regime: Section 87A tax rebate applies only up to ₹5,00,000 taxable income (max rebate ₹12,500).
Allowed vs Disallowed Deductions in New Regime
| Deduction / Exemption Category | Old Tax Regime | New Tax Regime |
|---|---|---|
| Section 80C (PPF, EPF, ELSS, Tuition Fee) | Up to ₹1,50,000 | ❌ Disallowed |
| Section 80D (Health Insurance Premium) | Up to ₹25,000–₹1,00,000 | ❌ Disallowed |
| Section 10(13A) HRA Exemption | Fully Allowed | ❌ Disallowed |
| Section 24(b) Self-Occupied Home Loan Interest | Up to ₹2,00,000 | ❌ Disallowed |
| Section 80CCD(1B) Self NPS Contribution | Up to ₹50,000 | ❌ Disallowed |
| Section 80CCD(2) Employer NPS Contribution | Up to 10% Basic | ✅ Allowed (up to 14% Basic) |
| Standard Deduction on Salary | ₹50,000 | ✅ ₹75,000 |
4. Understanding the Breakeven Deduction Threshold
To determine how to compare old vs new tax regime, taxpayers must evaluate their breakeven deduction threshold.
Breakeven Threshold: The minimum total amount of Old-Regime tax deductions (80C + 80D + HRA + Home Loan Interest + NPS) required for tax under the Old Regime to equal tax under the New Regime.
Decision Rule:
- If your Actual Deductions > Breakeven Threshold $\implies$ Old Tax Regime is Better.
- If your Actual Deductions < Breakeven Threshold $\implies$ New Tax Regime is Better.
For a salaried individual earning ₹15 Lakhs gross pay, the breakeven deduction threshold is approximately ₹3,75,000. Unless you claim over ₹3.75 Lakhs in combined exemptions, the New Tax Regime yields lower tax liability.
5. Worked Tax Case Studies across Income Levels
Here is a side-by-side tax calculation across common annual gross pay levels:
Case 1: Gross Salary of ₹7,50,000 (₹7.5 LPA)
- New Regime: Taxable = ₹6,75,000 (after ₹75k std ded). Tax = ₹13,750. Sec 87A Rebate = ₹13,750. Total Tax = ₹0.
- Old Regime (with ₹1.5L 80C): Taxable = ₹5,50,000 (after ₹50k std ded & ₹1.5L 80C). Total Tax = ₹23,400.
- 👉 Verdict: New Tax Regime saves ₹23,400.
Case 2: Gross Salary of ₹12,75,000 (₹12.75 LPA)
- New Regime: Taxable = ₹12,00,000 (after ₹75k std ded). Tax = ₹60,000. Sec 87A Rebate = ₹60,000. Total Tax = ₹0.
- Old Regime (with ₹2.5L deductions): Taxable = ₹9,75,000. Total Tax = ₹1,11,800.
- 👉 Verdict: New Tax Regime saves ₹1,11,800.
Case 3: Gross Salary of ₹15,00,000 (₹15 LPA)
- New Regime: Taxable = ₹14,25,000. Total Tax = ₹1,05,300.
- Old Regime (with ₹2.5L deductions): Taxable = ₹12,00,000. Total Tax = ₹1,79,400.
- 👉 Verdict: New Tax Regime saves ₹74,100 unless Old Regime deductions exceed ₹3,75,000.
Case 4: High Income ₹60,00,000 (₹60 LPA) with Surcharge Capping
- New Regime: Surcharge capped at 25%. Total Tax = ₹14,97,600.
- Old Regime: Higher tax rates + 10% surcharge. Total Tax = ₹16,92,600.
- 👉 Verdict: New Tax Regime saves ₹1,95,000 due to lower middle slabs and surcharge capping.
6. Decision Checklist: Which Regime Should You Pick?
Use this quick checklist to pick the right regime for FY 2025-26 / FY 2026-27:
-
Choose New Tax Regime if:
- Your gross salary is up to ₹12.75 Lakhs.
- You do not pay high house rent or do not have an active home loan.
- You prefer liquidity over lock-in investments like PPF, ELSS, or tax-saver FDs.
- Your total eligible deductions are less than your personalized breakeven limit.
-
Choose Old Tax Regime if:
- You pay substantial rent in a metro city and claim high HRA exemption using our HRA Calculator.
- You pay interest on a self-occupied home loan under Section 24(b) (up to ₹2 Lakhs).
- You fully exhaust Section 80C (₹1.5L), 80D medical insurance (₹25k–₹50k), and 80CCD(1B) NPS (₹50k).
7. How to Calculate & Compare Your Tax in 30 Seconds
Rather than calculating complex tax slabs manually, use QuickDocIndia’s free tax engines:
- Open our Old vs New Tax Regime Calculator.
- Enter your annual gross salary, age bracket, and salaried status.
- Input your Old-Regime deductions (80C, 80D, HRA, Home Loan Interest).
- Review your side-by-side tax liability, net monthly take-home, and personalized breakeven deduction figure.
- Use our In-Hand Salary Calculator to project monthly salary slip breakdowns, or compute tax returns with our general Income Tax Calculator.
Explore our full library of financial tools including the GST Calculator, Loan EMI Calculator, and EPF Calculator.