Old Regime vs New Regime in FY 2025-26: Which One Saves You More Tax?
Introduction
Have you ever wondered if you are paying more income tax than necessary just because you chose the wrong tax regime? With major changes in income tax slabs for the financial year 2025-26, this decision can significantly affect your savings.
In this comprehensive guide, you will get updated tax slabs for FY 2025-26, a side-by-side comparison between Old and New regimes, real examples with tax calculations, and guidance on who should pick which regime. Let us dive in.
What Are Tax Regimes?
In India, individuals can choose between two tax regimes when filing income tax returns:
- Old Regime – Higher rates but allows deductions and exemptions (like 80C, HRA, 80D)
- New Regime – Lower tax rates but most deductions and exemptions are removed
Which one is better? It depends on your income, investments, and savings pattern.
Latest Tax Slabs for FY 2025-26 (AY 2026-27)
These are the official slabs introduced in the Union Budget 2025:
New Tax Regime Slabs (FY 2025-26)
| Net Taxable Income | Tax Rate |
|---|---|
| Rs. 0 – Rs. 4,00,000 | Nil |
| Rs. 4,00,001 – Rs. 8,00,000 | 5% |
| Rs. 8,00,001 – Rs. 12,00,000 | 10% |
| Rs. 12,00,001 – Rs. 16,00,000 | 15% |
| Rs. 16,00,001 – Rs. 20,00,000 | 20% |
| Rs. 20,00,001 – Rs. 24,00,000 | 25% |
| Above Rs. 24,00,000 | 30% |
Rebate under Section 87A: If your taxable income is up to Rs. 12 lakh, you get zero income tax after rebate — even under the New Regime. This is an important new change for FY 2025-26. Standard Deduction of Rs. 50,000 still applies. Surcharge and cess are extra.
Old Tax Regime Slabs (FY 2025-26)
| Net Taxable Income | Tax Rate |
|---|---|
| Rs. 0 – Rs. 2,50,000 | Nil |
| Rs. 2,50,001 – Rs. 5,00,000 | 5% |
| Rs. 5,00,001 – Rs. 10,00,000 | 20% |
| Above Rs. 10,00,000 | 30% |
Key Advantage of Old Regime: You can claim deductions such as:
- Section 80C (up to Rs. 1.5 lakh)
- Section 80D (medical insurance)
- House Rent Allowance (HRA)
- Home Loan Interest under Section 24
- LTA, Education Loan interest, etc.
Side-by-Side Comparison
| Feature | Old Regime | New Regime |
|---|---|---|
| Tax Rates | Higher | Lower |
| Standard Deduction | Rs. 50,000 | Rs. 50,000 |
| Rebate u/s 87A | Up to Rs. 5 lakh | Up to Rs. 12 lakh |
| Deductions/Exemptions | Allowed (80C, 80D, HRA etc.) | Mostly Not Allowed |
| Best For | Investors + HRA/Loan holders | Simple tax payers |
| Default Option | No | Yes |
Real Examples: Tax Liability Comparisons
Example 1: Rs. 10,00,000 Salary, No Investments
New Regime:
- Taxable Income: Rs. 10,00,000
- First Rs. 4,00,000: 0% = Rs. 0
- Rs. 4,00,001 – Rs. 8,00,000 @ 5% = Rs. 20,000
- Rs. 8,00,001 – Rs. 10,00,000 @ 10% = Rs. 20,000
- Total Tax = Rs. 40,000
- Rebate: No (Taxable > Rs. 12 lakh needed for rebate) = Rs. 40,000
Old Regime:
- No deductions claimed
- Taxable: Rs. 10,00,000
- Rs. 2,50,001 – Rs. 5,00,000 @ 5% = Rs. 12,500
- Rs. 5,00,001 – Rs. 10,00,000 @ 20% = Rs. 1,00,000
- Total Tax = Rs. 1,12,500
Winner: New Regime. Savings = Rs. 72,500
Example 2: Rs. 12,00,000 Salary + Investments Rs. 2,50,000
Assume: 80C: Rs. 1,50,000; 80D: Rs. 25,000; Home Loan Interest: Rs. 75,000
Old Regime:
- Taxable Income = Rs. 12,00,000 – Rs. 2,50,000 = Rs. 9,50,000
- Tax = Rs. 1,03,000 (approx)
New Regime:
- Taxable Income = Rs. 12,00,000
- Up to Rs. 12 lakh → 10% at top slab = Rs. 80,000
- Rebate 87A applies → Tax reduced to zero
Winner: New Regime again (due to rebate)
Example 3: Rs. 18,00,000 Salary + Investments Rs. 2,00,000
Old Regime:
- Taxable = Rs. 18,00,000 – Rs. 2,00,000 = Rs. 16,00,000
- Tax = Rs. 2,35,000 (approx)
New Regime:
- Taxable = Rs. 18,00,000
- First Rs. 4,00,000 = Nil
- Rs. 4-8 lakh @ 5% = Rs. 20,000
- Rs. 8-12 lakh @ 10% = Rs. 40,000
- Rs. 12-16 lakh @ 15% = Rs. 60,000
- Rs. 16-18 lakh @ 20% = Rs. 40,000
- Total = Rs. 1,60,000
Winner: New Regime. Savings = Rs. 75,000
Which One is Better for You?
Choose New Regime if:
- Your income is Rs. 12,00,000 or less (87A rebate makes it zero tax)
- You do not have big investments or deductions
- You prefer a simple filing process
Choose Old Regime if:
- You claim high deductions under 80C/80D
- You pay significant HRA or home loan interest
- Your investments make tax savings worthwhile
Quick Decision Tip
If your total deductions and exemptions exceed approximately Rs. 2.5 lakh, the Old Regime will likely save more tax.
If your deductions are below approximately Rs. 1.5 lakh, the New Regime is usually better because of lower slab rates plus the larger rebate.
Final Thoughts
The best tax regime is not the same for everyone. It depends on your income, investments and savings, home rent or loan obligations, and financial goals.
Always run the numbers under both regimes before filing. Even a small adjustment in deductions can flip the winner. At AAG & Co., we specialize in personalized tax planning to ensure you never pay a rupee more than necessary.
CA Manish Goel
Partner at AAG & Co. specializing in Direct Taxation and Corporate Advisory. With over a decade of experience, he helps clients navigate complex tax landscapes with ease.