The Annual Tax Dilemma
Every April, millions of Indian professionals make the same decision that can cost or save them tens of thousands of rupees: which tax regime to declare to HR?
Choosing the wrong regime is a permanent mistake for that financial year. Here's how to calculate it correctly.
Slab Rate Comparison (FY2025-26)
| Income Slab | Old Regime Tax Rate | New Regime Tax Rate |
|---|---|---|
| ₹0 – ₹2.5 Lakhs | 0% | 0% |
| ₹2.5 – ₹3 Lakhs | 5% | 0% |
| ₹3 – ₹5 Lakhs | 5% | 5% |
| ₹5 – ₹6 Lakhs | 20% | 5% |
| ₹6 – ₹7 Lakhs | 20% | 10% |
| ₹7 – ₹9 Lakhs | 20% | 10% |
| ₹9 – ₹10 Lakhs | 20% | 15% |
| ₹10 – ₹12 Lakhs | 30% | 15% |
| ₹12 – ₹15 Lakhs | 30% | 20% |
| Above ₹15 Lakhs | 30% | 30% |
| Section 87A Rebate | Up to ₹5L income | Up to ₹7L income |
| Standard Deduction | ₹50,000 | ₹75,000 (FY2025-26) |
New Regime advantage: Lower slabs up to ₹15L + ₹7L full rebate.
Which regime saves you more this year?
Enter your CTC, HRA, 80C investments, and home loan interest in plannF's Tax Analytics engine to see your exact tax bill under both regimes side-by-side.
See a Live DemoWhich Regime is Better for Your Profile?
| Profile | Recommendation | Why |
|---|---|---|
| Income ≤ ₹7.5 Lakhs | New Regime | Zero tax via 87A rebate |
| High HRA (metro cities) | Old Regime (likely) | HRA exemption can be ₹1-2L |
| Heavy Home Loan (₹2L interest) | Old Regime (likely) | Section 24b reduces taxable income |
| Maxing 80C (₹1.5L) | Compare both — often close | 80C saves only ₹46,800 (at 30%) |
| No home loan, no HRA | New Regime (almost always) | Simpler + lower slab rates |
| Early retiree, capital gains income | New Regime | 87A rebate, no forced deductions |
| Income above ₹30 Lakhs | Old Regime usually better | Deductions save more at 30% |
The Deduction Breakeven
For incomes above ₹15 Lakhs:
- If total eligible deductions (80C + 80D + HRA + Home Loan interest) exceed ₹3.75-4 Lakhs → Old Regime saves more
- If total deductions are below ₹3.75 Lakhs → New Regime saves more
Detailed Example: ₹20 Lakh CTC Professional
| Item | Old Regime | New Regime |
|---|---|---|
| Gross Income | ₹20,00,000 | ₹20,00,000 |
| Standard Deduction | −₹50,000 | −₹75,000 |
| 80C (EPF + ELSS + PPF) | −₹1,50,000 | ₹0 |
| 80D (Health Insurance) | −₹25,000 | ₹0 |
| HRA Exemption | −₹1,20,000 | ₹0 |
| Home Loan Interest (Sec 24b) | −₹2,00,000 | ₹0 |
| Taxable Income | ₹14,55,000 | ₹19,25,000 |
| Tax Payable | ₹2,85,750 | ₹2,65,000 |
For this specific profile (heavy deductions: ₹5.45L total), the Old Regime still wins by ~₹20,000. With fewer deductions, New Regime wins easily.
Don't guess — calculate your exact tax in 2 minutes.
plannF's regime calculator shows your exact tax liability under both regimes for your specific income structure, and models the multi-year impact across your FIRE journey.
Start Your Free PlanFAQs
1. Can I switch between Old and New Regime every year?
Salaried employees can switch regime once per year (at the start of the financial year, typically by April). However, for business owners and freelancers, once you opt for the Old Regime, you cannot switch to New Regime in subsequent years (with some exceptions). For salaried professionals, the flexibility is an advantage — re-evaluate every April based on your current year's expected deductions.
2. Does investing in ELSS still make sense if I'm in the New Regime?
No — ELSS (Equity-Linked Savings Scheme) only provides a tax benefit under Section 80C, which is unavailable in the New Regime. Under the New Regime, ELSS has a 3-year lock-in with no tax advantage. Switch to plain Nifty 50 index funds or flexi-cap funds with no lock-in. Your old ELSS units, once unlocked (3 years), can be redeemed and reinvested in more flexible instruments.
3. How does Section 80CCD(2) (Corporate NPS) interact with the New Regime?
Corporate NPS under Section 80CCD(2) remains available under the New Regime — it's one of the few deductions retained. Your employer can contribute up to 10% of basic salary to your NPS, and this amount is completely tax-free for you. This is a major advantage: maximize Corporate NPS regardless of which regime you choose, as it's deductible under both.
4. What is the "default" regime if I don't declare my choice to HR by April?
As of FY2023-24, the New Regime is the default. If you don't declare your choice to HR, you will automatically be in the New Regime for that financial year. If you want the Old Regime, you must proactively declare it before the deadline. Check with your company's HR for the specific date — usually the first week of April.
5. How does plannF model the tax regime across different years in FIRE planning?
For working years, plannF calculates the optimal regime based on your declared deductions. For retirement years, it typically models New Regime (since most retirees have minimal 80C deductions) and applies the Section 87A rebate. You can override this for specific scenarios (e.g., if you have heavy rental income that creates Old Regime advantages). The year-by-year tax calculation is shown in your FIRE dashboard.
