Old vs New Tax Regime: Which Should You Choose in FY 2025-26?
Every year around tax-filing time, the same question comes up: old regime or new regime? The honest answer is that there's no universally correct choice — it depends entirely on how much you're claiming in deductions, and by how much. This guide walks through the actual mechanics of both, so you can work out which one wins for your specific numbers.
The two regimes at a glance
The new tax regime is the default option since FY 2023-24. It has lower tax rates spread across more slabs, a higher rebate threshold, and a flat ₹75,000 standard deduction — but it strips away almost every other deduction and exemption you might be used to claiming.
The old tax regime has fewer, wider slabs with higher rates, but lets you claim a long list of deductions: Section 80C investments (PPF, ELSS, life insurance premiums), Section 80D health insurance, home loan interest, HRA exemption, and more.
| New Regime | Old Regime | |
|---|---|---|
| Nil tax up to | ₹4,00,000 | ₹2,50,000 |
| Standard deduction | ₹75,000 | ₹50,000 |
| Full rebate if taxable income ≤ | ₹12,00,000 | ₹5,00,000 |
| Top rate | 30% above ₹24L | 30% above ₹10L |
| 80C, 80D, HRA, home loan interest | Not allowed | Allowed |
Why the new regime wins for most salaried people with few deductions
If you're not actively investing in tax-saving instruments, don't have a home loan, and don't pay significant rent that qualifies for HRA — the new regime almost always comes out ahead. The rebate alone means anyone with taxable income up to ₹12 lakh (roughly ₹12.75 lakh gross salary, after the standard deduction) pays zero income tax under the new regime. Under the old regime, that same person would owe tax on any income above ₹5 lakh unless they've claimed enough deductions to bring their taxable income down.
Why the old regime can still win — and by how much you need to be claiming
The old regime becomes competitive, and often better, once your total deductions climb past roughly ₹3.5–4 lakh a year. That's not an unusual number for someone with an active home loan (interest deduction up to ₹2 lakh under Section 24), a full ₹1.5 lakh in Section 80C investments, and health insurance premiums under 80D. HRA can push this further if you pay substantial rent in a metro city.
The rule of thumb: the more of these boxes you tick — home loan, full 80C utilization, HRA, health insurance — the more likely the old regime saves you money. If you're only ticking one or two loosely, the new regime usually still wins.
A practical way to decide
- List your actual deductions — not what you're eligible for, what you'll genuinely claim this year (80C investments already made or committed, actual home loan interest, real HRA-eligible rent).
- Run both numbers — plug your gross income and total deductions into a regime comparison tool rather than estimating in your head; the slab structures are different enough that intuition is unreliable here.
- Re-check when your situation changes — paying off a home loan, a new job with different HRA, or stopping an 80C investment can flip which regime wins. This isn't a once-and-done decision.
One thing people often get wrong
People sometimes assume the regime choice is permanent once picked. For salaried individuals, it isn't — you can switch every financial year when filing your return (though those with business income face more restrictions on switching back and forth). Don't let a choice made three years ago run on autopilot; your deduction profile likely looks different today.