New vs Old Tax Regime: Complete Guide for FY 2025-26
Budget 2025 was the most significant income tax overhaul in recent memory. The government made the new regime so attractive that the Central Board of Direct Taxes estimates over 88% of salaried taxpayers will now save more under the new regime. But "most people" is not "everyone" — and the wrong choice can cost you ₹50,000 or more in a single year. Here is what actually changed, who benefits, and how to decide.
What changed in Budget 2025
Three changes came into effect for FY 2025-26. First, the Section 87A rebate was doubled from ₹25,000 to ₹60,000 under the new regime — this means anyone with taxable income up to ₹12 lakh pays zero income tax. Second, the standard deduction for salaried employees was raised from ₹50,000 to ₹75,000, which effectively makes ₹12.75 lakh completely tax-free for salaried individuals. Third, new lower slab rates apply from ₹4 lakh onwards (5%), with the old ₹3–6 lakh slab restructured. The old regime was left completely unchanged.
New Regime slabs for FY 2025-26
| Taxable income (after ₹75K std. ded.) | Rate |
|---|---|
| Up to ₹4,00,000 | Nil |
| ₹4,00,001 – ₹8,00,000 | 5% |
| ₹8,00,001 – ₹12,00,000 | 10% |
| ₹12,00,001 – ₹16,00,000 | 15% |
| ₹16,00,001 – ₹20,00,000 | 20% |
| ₹20,00,001 – ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
Plus 4% Health and Education Cess on the income tax amount. The 87A rebate of ₹60,000 applies if net taxable income is ₹12 lakh or below — making the effective tax ₹0 up to ₹12.75L gross salary for salaried employees after the standard deduction.
Old Regime slabs for FY 2025-26
| Taxable income (after ₹50K std. ded. + all deductions) | Rate (below 60) |
|---|---|
| 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% |
Senior citizens (60–79) get a ₹3L exemption; super seniors (80+) get ₹5L. The 87A rebate of ₹12,500 applies if taxable income is ₹5L or below. Plus 4% cess.
Who should choose the New Regime
- Income up to ₹12.75 lakh (salaried): Zero tax. No contest.
- Minimal deductions: If your total 80C + 80D + other deductions are below ₹2–2.5 lakh, the new regime will almost certainly save you more tax.
- Renters in non-metro cities: HRA exemption is lower (40% of basic vs 50%), making the new regime competitive even for rent payers.
- No home loan: The Section 24B deduction of up to ₹2L on home loan interest is a key driver of old regime savings — without it, new regime usually wins.
- Freelancers and business income: Simplified filing, presumptive taxation under 44AD/44ADA is compatible with new regime.
Who should stick with the Old Regime
- Large HRA + metro rent: If you're paying ₹40,000+/month rent in Mumbai, Delhi, Bangalore or Chennai, the 50% HRA exemption can be ₹2–3L per year — the single biggest reason to stay on the old regime.
- Active home loan: Section 24B allows up to ₹2 lakh interest deduction. Combined with 80C (principal repayment), this alone can tip the balance toward old regime for incomes above ₹20L.
- High earners with maxed deductions: If you have maxed 80C (₹1.5L) + NPS 80CCD(1B) (₹50K) + 80D (₹25K) + HRA + home loan, total deductions can exceed ₹5L. At ₹25L+ income, old regime often wins in this scenario.
- Senior citizens with large 80D claims: Senior citizens get a ₹50,000 health insurance deduction under 80D — significantly more than the standard deduction difference between regimes.
HRA: the most important factor for many salaried employees
HRA exemption is calculated as the minimum of three amounts: (1) actual HRA received from employer, (2) rent paid minus 10% of basic salary, and (3) 50% of basic in metro cities or 40% in non-metro. For someone earning ₹15L with a ₹6L basic living in Mumbai and paying ₹25,000/month rent, HRA exemption can easily reach ₹1.5–2.4L. This is not available in the new regime and often makes the difference between regimes.
NPS: one benefit available in both regimes
The one NPS benefit that works in both regimes is employer NPS under Section 80CCD(2) — contributions made by your employer (not you) to your NPS account are deductible up to 10% of basic+DA in both old and new regimes. This reduces your taxable salary at source and is one of the highest-leverage tax moves available in the new regime. If you are on the new regime, ask your HR whether employer NPS can be set up — it is a zero-cost benefit for the employer and saves you real money.
The employee contribution under 80CCD(1B) — the extra ₹50,000 — is only deductible in the old regime. Under new regime, NPS remains a good retirement investment but does not provide an upfront tax deduction on your own contributions.
The decision framework
Run this calculator with your actual numbers. The recommendation is based on exact tax calculation for both regimes using the current year's slabs, rebates, and marginal relief rules. Use the what-if slider to see how additional 80C investments would shift the outcome. Check the missed deductions panel — many people underutilise 80D and 80CCD(1B) without realising it. If you are close to the boundary (saving less than ₹10,000 either way), consider the simplicity advantage: the new regime requires zero investment tracking, no regime declaration at the start of the year, and simpler ITR filing.