TAX PLANNING — FY 2025-26
Old vs New Tax Regime FY 2025-26 — Which Saves You More? (With Real Numbers)
Published: March 16, 2026 | 13 min read | Based on FY 2025-26 (AY 2026-27) rules
From April 1, 2025, the New Tax Regime became India's default tax regime. If you haven't actively chosen, you're already in it. But for many salaried professionals — especially those with a home loan, HRA, NPS, and health insurance — the Old Regime still saves significantly more. This article gives you the exact numbers to decide, not guesswork.
The One-Minute Answer
New Regime wins if: Your deductions (excl. standard deduction) are below ₹3.75 lakh — OR — your income is ₹12,75,000 or less (zero tax in new regime)
Old Regime wins if: You have a home loan + HRA + 80C + 80D + NPS — total deductions above ₹3.75 lakh
Both regimes: LTCG ₹1,25,000 annual exemption works under both — never skip this
The Slab Rates: Side by Side
Both regimes apply to the same gross income. The difference is how much you can subtract before tax is calculated.
New Tax Regime — FY 2025-26 (Default)
| Income Slab | Tax Rate | Tax on This Slab |
|---|---|---|
| Up to ₹4,00,000 | NIL | ₹0 |
| ₹4,00,001 – ₹8,00,000 | 5% | Up to ₹20,000 |
| ₹8,00,001 – ₹12,00,000 | 10% | Up to ₹40,000 |
| ₹12,00,001 – ₹16,00,000 | 15% | Up to ₹60,000 |
| ₹16,00,001 – ₹20,00,000 | 20% | Up to ₹80,000 |
| ₹20,00,001 – ₹24,00,000 | 25% | Up to ₹1,00,000 |
| Above ₹24,00,000 | 30% | 30% on balance |
Key benefit: Salaried individuals earning up to ₹12,75,000 pay zero tax in the New Regime — thanks to the ₹12,00,000 rebate under Section 87A plus ₹75,000 standard deduction. Standard deduction is ₹75,000 in the New Regime.
Old Tax Regime — FY 2025-26
| Income Slab | Tax Rate |
|---|---|
| Up to ₹2,50,000 | NIL |
| ₹2,50,001 – ₹5,00,000 | 5% |
| ₹5,00,001 – ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
Key benefit: Deductions available — Standard deduction ₹50,000, 80C (₹1.5L), 80D (up to ₹1L), HRA, LTA, NPS 80CCD(1B) (₹50K extra above 80C), and Home Loan Interest (₹2L under Section 24b). These can reduce your taxable income significantly despite higher slab rates.
What Deductions Are Allowed — And Where
| Deduction | Limit | Old Regime | New Regime |
|---|---|---|---|
| Standard Deduction | ₹50,000 / ₹75,000 | ✔ ₹50,000 | ✔ ₹75,000 |
| 80C (PPF, ELSS, LIC, EPF, NSC) | ₹1,50,000 | ✔ | ✘ |
| 80D (Health Insurance) | Up to ₹1,00,000 | ✔ | ✘ |
| NPS 80CCD(1B) — personal | ₹50,000 (extra) | ✔ | ✘ |
| NPS 80CCD(2) — employer | 14% of Basic+DA | ✔ | ✔ |
| HRA (House Rent Allowance) | 50%/40% of Basic | ✔ | ✘ |
| Home Loan Interest (Sec 24b) | ₹2,00,000 | ✔ | ✘ |
| LTA (Leave Travel Allowance) | Actual (2 trips in 4 yrs) | ✔ | ✘ |
| LTCG ₹1.25L annual exemption | ₹1,25,000 | ✔ | ✔ |
Real Example: ₹15 Lakh Salary — Old vs New (With Actual Tax Calculations)
Let's take a realistic salaried professional in a metro city with comprehensive deductions. All numbers are verified using FY 2025-26 slab rates + 4% cess.
| Item | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹15,00,000 | ₹15,00,000 |
| Standard Deduction | –₹50,000 | –₹75,000 |
| 80C (PPF/ELSS/LIC) | –₹1,50,000 | Not allowed |
| 80D (self + senior parents) | –₹75,000 | Not allowed |
| NPS 80CCD(1B) | –₹50,000 | Not allowed |
| HRA (metro, ₹20K/month rent) | –₹1,65,000 | Not allowed |
| Home Loan Interest (Sec 24b) | –₹2,00,000 | Not allowed |
| Taxable Income | ₹8,10,000 | ₹14,25,000 |
| Tax Payable (incl. 4% cess) | ₹77,480 | ₹97,500 |
| Winner | ✅ Saves ₹20,020 | — |
How ₹77,480 Is Calculated (Old Regime on ₹8,10,000)
- ₹0 – ₹2,50,000 → ₹0 (nil slab)
- ₹2,50,001 – ₹5,00,000 → ₹2,50,000 × 5% = ₹12,500
- ₹5,00,001 – ₹8,10,000 → ₹3,10,000 × 20% = ₹62,000
- Subtotal: ₹74,500 + 4% cess = ₹77,480
How ₹97,500 Is Calculated (New Regime on ₹14,25,000)
- ₹0 – ₹4,00,000 → ₹0 (nil slab)
- ₹4,00,001 – ₹8,00,000 → ₹4,00,000 × 5% = ₹20,000
- ₹8,00,001 – ₹12,00,000 → ₹4,00,000 × 10% = ₹40,000
- ₹12,00,001 – ₹14,25,000 → ₹2,25,000 × 15% = ₹33,750
- Subtotal: ₹93,750 + 4% cess = ₹97,500
Key Insight: Without a home loan, the two regimes are almost identical at ₹15L. The home loan interest deduction of ₹2,00,000 under Section 24b is often the deciding factor. Every additional deduction you claim in the Old Regime directly reduces your tax by 20–30%.
The Breakeven Rule: One Number to Remember
You don't need a spreadsheet. Just answer this one question:
Are your total deductions (excluding standard deduction) above ₹3.75 lakh?
YES → Old Regime
Typical for: Home loan owners + HRA + NPS + 80D parents
NO → New Regime
Typical for: Renters with no home loan, minimal investments
Strategy 1: LTCG Harvesting — ₹15,625 Free, Every Year (Both Regimes)
This is the most underused tax strategy in India. It works regardless of which regime you're in.
How It Works
- LTCG on equity mutual funds and listed shares held 12+ months is taxed at 12.5%
- The first ₹1,25,000 of LTCG every financial year is completely tax-free
- This exemption does NOT carry forward — if you don't use it this year, it's gone
The 4-Step Harvest Strategy (30 minutes, once a year)
Step 1: Check your equity portfolio for unrealised long-term gains (held 12+ months)
Step 2: Before March 31, sell enough units to realise exactly ₹1,25,000 in gains
Step 3: Immediately buy the same fund back the next trading day
Step 4: Your cost basis resets higher — future gains are lower, future tax is lower
| Scenario | Without Harvesting | With Harvesting |
|---|---|---|
| Gains over 5 years | ₹6,25,000 (booked in year 5) | ₹1,25,000/year × 5 years |
| Tax payable | ₹78,125 | ₹0 |
| 5-Year Saving | — | ₹78,125 saved |
Annual saving: ₹15,625. Takes 30 minutes. Works under BOTH regimes. Do this before March 31 every year.
Strategy 2: NPS 80CCD(1B) — ₹50,000 Extra Deduction Almost Nobody Uses
Most people max out 80C (₹1,50,000) with PPF, ELSS, LIC — then stop. Here's what they miss:
Section 80CCD(1B) gives you an additional ₹50,000 deduction for NPS contributions — completely separate from and above the ₹1,50,000 80C limit. This is extra. You can claim both.
Under Old Regime
| Deduction | Section | Limit | Tax Saved (30%) |
|---|---|---|---|
| PPF / ELSS / LIC / EPF | 80C | ₹1,50,000 | ₹46,800 |
| NPS (additional) | 80CCD(1B) | ₹50,000 | ₹15,600 |
| Total | ₹2,00,000 | ₹62,400 |
Under New Regime
Personal NPS contributions (80CCD(1B)) are not deductible in the New Regime. However, your employer's NPS contribution under Section 80CCD(2) — up to 14% of Basic+DA — is fully deductible even in the New Regime.
Example: Basic salary ₹8L. If your employer routes 14% to NPS = ₹1,12,000 — this entire amount is deductible even in the New Regime. Ask your HR to restructure your CTC to include employer NPS contribution.
Strategy 3: HRA + Home Loan Together — Yes, You Can Claim Both
One of the most common misconceptions: "I have a home loan so I can't claim HRA." That's wrong. You can claim both — if they relate to different properties.
When You Can Claim Both (Old Regime Only)
- ✅ You rent a flat in Delhi for work → claim HRA exemption
- ✅ You own a house in Chandigarh / hometown with a home loan → claim Section 24b interest + 80C principal
- ❌ You CANNOT claim HRA + home loan interest on the same property
Real Numbers: Salaried in Delhi, Home Loan on Hometown Property
| Item | Amount |
|---|---|
| Basic Salary | ₹10,00,000 |
| Rent paid (Delhi) | ₹20,000/month = ₹2,40,000/year |
| HRA deduction (lowest of: actual rent / 50% basic / HRA received) | ₹2,40,000 |
| Home Loan Interest deduction (Sec 24b) | ₹2,00,000 |
| Total Combined Deductions | ₹4,40,000 |
| Tax Saved at 30% slab | ₹1,32,000 + 4% cess |
Your ₹50,000–80,000 Annual Saving: How the Numbers Add Up
For a salaried professional earning ₹15–25 lakh in the Old Regime with full deductions:
| Strategy | Annual Tax Saving |
|---|---|
| Choosing the correct tax regime | ₹10,000 – ₹40,000 |
| LTCG Harvesting (₹1.25L annual exemption) | ₹15,625 |
| NPS 80CCD(1B) — ₹50,000 extra deduction | ₹10,000 – ₹15,600 |
| HRA + Home Loan (if applicable) | ₹20,000 – ₹50,000 |
| Total Possible Annual Saving | ₹55,625 – ₹1,21,225 |
Conservative estimate for most salaried professionals: ₹50,000–80,000 per year. This is money you are already entitled to keep. It's just not being claimed correctly.
Quick Guide: Which Regime for Your Profile?
Choose New Regime If:
- Income ₹12,75,000 or below (zero tax — no brainer)
- No home loan, minimal investments, no senior parent health insurance
- You prefer simplicity over optimisation
- Deductions (excl. standard) are below ₹3.75 lakh
Choose Old Regime If:
- You have a home loan with interest payment of ₹1.5L+ per year
- You pay rent AND have a home loan on a different property (HRA + Sec 24b)
- You have 80C maxed out + NPS + 80D for family/parents
- Total deductions (excl. standard) exceed ₹3.75 lakh
Frequently Asked Questions
Can I switch between old and new regime every year?
Yes, if you are salaried. You inform your employer at the start of each year. Self-employed individuals with business income can switch from new to old once, but cannot switch back.
What is the 80D limit for senior parent health insurance?
₹25,000 for self + family. Additional ₹50,000 for senior citizen parents. Maximum total 80D deduction: ₹75,000. This applies to Old Regime only.
Does LTCG harvesting trigger STT or exit load?
STT (Securities Transaction Tax) applies at 0.001% on redemptions of equity mutual funds — negligible. Exit load (typically 1% for redemptions within 1 year) does NOT apply since we're redeeming after 12+ months. The strategy is cost-effective.
Is home loan principal repayment covered in 80C in both regimes?
Home loan principal (Section 80C) is only deductible in the Old Regime. Home loan interest (Section 24b — up to ₹2L) is also only available in the Old Regime. Neither is available in the New Regime.
What if I forgot to choose a regime and my employer deducted TDS under New Regime?
You can still switch to the Old Regime at the time of filing your Income Tax Return (ITR) before the due date (typically July 31). File under the Old Regime, claim all deductions, and get a refund of excess TDS deducted.
Want This Applied to Your Exact Numbers?
A 15-minute conversation can tell you:
- Which regime saves you more — based on your actual income and deductions
- Whether LTCG harvesting applies to your portfolio right now
- Whether you should open an NPS account before March 31
- Whether you can legally claim both HRA and home loan
NovaRock Advisory | IRS Enrolled Agent | AMFI ARN-344268 | Kurukshetra, Haryana
Disclaimer: This article is for educational purposes based on FY 2025-26 (AY 2026-27) income tax rules as of March 2026. Tax laws are subject to change. All calculations assume standard slab rates without surcharge (applicable for income below ₹50L). Always verify with a qualified tax advisor before filing. Jasvinder Singh is an IRS Enrolled Agent and AMFI Registered Mutual Fund Advisor (ARN-344268). This is not personalised tax advice.