Since the new tax regime became the default, the single most common question for salaried taxpayers in India is simple: should I stay on the new regime, or opt back into the old one? The honest answer is that it depends on one thing — how much you can genuinely deduct. This guide explains both systems for FY 2025-26 (AY 2026-27) and gives you a clear way to decide.
The core trade-off
The two regimes make opposite bets:
- The new regime gives you lower slab rates across wider bands and makes income up to ₹12 lakh tax-free, but you give up almost every deduction.
- The old regime charges higher rates, but lets you shrink your taxable income with deductions like 80C, 80D, HRA and home-loan interest.
So the new regime rewards people who don’t (or can’t) claim many deductions, and the old regime rewards people who do.
New regime slabs (FY 2025-26)
After Budget 2025, the new-regime slabs are:
| Taxable income | 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% |
A ₹75,000 standard deduction applies to salaried income, and the Section 87A rebate cancels tax up to ₹12 lakh of taxable income. For a salaried person, that means a salary of about ₹12.75 lakh can be entirely tax-free.
Old regime slabs (FY 2025-26)
| Taxable income (below 60) | 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% |
Seniors get a higher exemption (₹3 lakh for 60–79, ₹5 lakh for 80+). The old regime’s standard deduction is ₹50,000, and the 87A rebate covers taxable income up to ₹5 lakh.
What you keep and what you lose
| Benefit | Old regime | New regime |
|---|---|---|
| Standard deduction (salary) | ₹50,000 | ₹75,000 |
| Section 80C (PPF, EPF, ELSS, etc.) | Yes, up to ₹1.5 lakh | No |
| Section 80D (health insurance) | Yes | No |
| HRA exemption | Yes | No |
| Home-loan interest (Sec 24) | Yes | No |
| Employer NPS — 80CCD(2) | Yes | Yes |
| 87A rebate limit | ₹5 lakh taxable | ₹12 lakh taxable |
A simple way to decide
There’s a rough break-even idea worth knowing: add up the deductions you actually claim each year. The more they total, the more the old regime tilts in your favour; if they’re small, the new regime’s lower rates usually win. But the exact crossover shifts with your income level, so a rule of thumb only gets you so far.
The reliable approach is to compute both. Our income tax calculator does exactly this — enter your income and deductions once and it shows the tax under each regime side by side, with the cheaper one marked.
A worked comparison
Take a salaried person below 60 earning ₹15 lakh in FY 2025-26:
- New regime, no deductions: taxable income ₹14.25 lakh → about ₹97,500 tax (including 4% cess).
- Old regime with ₹6.5 lakh of deductions (full 80C, 80D, HRA and home-loan interest): taxable income drops to ₹8 lakh → roughly ₹75,400 tax.
Here the old regime wins because the deductions are large. With few deductions, the same income is cheaper under the new regime. That flip is exactly why you should run your own numbers rather than assume.
Build your deductions before you decide
If you lean toward the old regime, it’s worth making your 80C limit work harder. Instruments like PPF and ELSS funds (which you can plan with a SIP) both reduce taxable income and build long-term wealth, so the deduction does double duty.
When the new regime clearly wins
The new regime is the better choice in most of these situations:
- Income up to ₹12.75 lakh (salaried). The ₹60,000 Section 87A rebate cancels the slab tax entirely. Zero tax, no deduction hunting required.
- Limited genuine deductions. If your only 80C investment is a small LIC premium, EPF is minimal, and you have no home loan, the old regime’s lower slabs offer little practical benefit.
- Renting in a non-metro or low rent. HRA exemption in cheaper cities is smaller; the new regime’s wider zero-rate band often compensates.
- Business or freelance income. Self-employed people frequently find the new regime simpler — fewer compliance requirements, no investment-proof submissions.
When the old regime can still win
The old regime’s deductions can overcome its steeper slab rates when they are large enough:
- Large home loan with HRA. A ₹2L home-loan interest deduction (Section 24b) plus a meaningful HRA exemption plus full 80C quickly adds up to ₹4–5 lakh in deductions — enough to outweigh the new regime’s lower rates at higher income levels.
- Metro city renter with high rent. HRA exemption in Mumbai, Delhi, Bangalore or Chennai can reach ₹3–5 lakh for higher earners, swinging the calculation firmly toward the old regime.
- Income above ₹15 lakh with genuine deductions. At higher incomes both regimes are taxed at 30% at the margin; at that point the old regime’s deductions are worth ₹46,800–₹78,000 per ₹1.5L–₹2.5L of deductions, compounding the saving.
- Senior citizen with insurance and NPS. The higher 80D limit (₹50,000 for senior-citizen insured) plus NPS under 80CCD(1B) plus 80C creates a deduction stack worth comparing carefully.
Practical use cases
Case 1: ₹10 lakh salary, new regime Taxable income = ₹10L − ₹75K = ₹9.25L. Slab tax: ₹20K + ₹12,500 = ₹32,500. Taxable income < ₹12L → full 87A rebate → ₹0 tax. No deduction effort needed.
Case 2: ₹20 lakh salary, no large deductions New regime taxable = ₹19.25L → slab tax ₹1,85,000 + cess ₹7,400 = ₹1,92,400. Old regime (std deduction + 80C + 80D = ₹2.25L): taxable = ₹17.75L → slab tax ₹3,17,500 + cess ₹12,700 = ₹3,30,200. New regime saves over ₹1.37 lakh — the old regime’s deductions aren’t nearly large enough.
Case 3: ₹20 lakh salary, large deductions (home loan + HRA + 80C + 80D = ₹7.5L) Old regime taxable = ₹20L − ₹50K − ₹7.5L = ₹12L → slab tax ₹1,12,500 + cess ₹4,500 = ₹1,17,000. New regime: ₹1,92,400 (as above). Old regime saves ₹75,400 — the deduction stack is large enough to flip the result.
The breakeven deduction level shifts with income. At ₹15L it is roughly ₹6.5L; at ₹20L it is closer to ₹7.5L; at ₹30L the crossover deduction requirement is higher still. Running your own numbers with the income tax calculator is the only reliable way to find your exact breakeven.
Common mistakes
- Defaulting to the old regime out of habit. Many employees who joined the workforce before FY 2023-24 remain on the old regime automatically, even when the new regime would save them more. The new regime is more favourable for a large proportion of taxpayers below ₹15 lakh.
- Comparing regimes using gross income instead of taxable income. The standard deduction (₹50K old / ₹75K new) and the deductions you actually claim must be subtracted first — applying slab rates to gross salary ignores the ₹25,000 asymmetry in standard deductions alone.
- Assuming 80C investments are only useful under the old regime. PPF, ELSS and EPF are valuable long-term wealth-building instruments regardless of which regime you are on. The question is whether the tax deduction they offer under the old regime is large enough to beat the new regime’s lower rates — not whether the investments themselves are worthwhile.
- Forgetting to account for employer NPS (80CCD(2)). This deduction is available in the new regime as well. If your employer contributes to NPS on your behalf, it is deductible in both regimes and should not factor into the old-versus-new comparison.
- Deciding once and never revisiting. Your deduction profile changes year to year — a new home loan, children starting school, or a rise in health-insurance premiums can shift the breakeven. Review which regime is cheaper at the start of each financial year.
Key takeaways
- The new regime has lower slab rates and a much higher Section 87A rebate (₹12L vs ₹5L), but you give up 80C, 80D, HRA, home-loan interest and most other deductions.
- The old regime’s deductions only win when they are large — roughly ₹6L+ at a ₹15L income, more at higher incomes.
- For salaried income up to ₹12.75L, the new regime produces zero tax with zero deduction planning — a clear win.
- Employer NPS contributions (80CCD(2)) are deductible in both regimes and should be excluded from the comparison.
- The reliable way to decide is to calculate both with your actual income and deductions. The income tax calculator does this in one step.
Frequently asked questions
Can I switch regimes every year? Salaried employees can choose their regime each financial year by declaring it to their employer at the start of the year. The new regime is the default; you must actively opt into the old one. If you miss the employer declaration window you can still choose at ITR filing, but your TDS will have been computed under the default new regime.
What deductions survive in the new regime? Very few. Standard deduction (₹75,000), employer NPS contribution under 80CCD(2), and a handful of niche exemptions. Notably, the ₹75,000 standard deduction is larger in the new regime than the ₹50,000 in the old, which partially offsets the loss of other deductions for lower incomes.
Is the new regime better for senior citizens? It depends. Under the old regime, seniors get a higher basic exemption (₹3L for 60–79, ₹5L for 80+) and a higher 80D limit (₹50,000 for their own insurance). Under the new regime, the ₹12L 87A rebate is age-independent — so seniors with moderate income and few deductions may still prefer the new regime. Those with higher incomes, NPS and large insurance premiums should compare both.
What happens to my 80C investments if I switch to the new regime? Nothing happens to the investments themselves — they continue to grow. You just cannot claim a tax deduction for new contributions in a year you are on the new regime. Past deductions already claimed are not reversed.
If I forget to declare my regime to my employer, what happens? Your employer will compute TDS using the new regime (the default). You can still opt for the old regime when filing your ITR; the difference will be refunded or you’ll need to pay the shortfall. However, if the old regime requires you to claim HRA or other exemptions that need employer processing, the timing of declaration matters more.
Tax rules change with each Budget and individual circumstances vary. This guide is general information, not tax advice. The worked examples use round numbers for illustration and are based on FY 2025-26 provisions. Confirm your specific situation with a qualified chartered accountant or the official Income Tax Department portal before filing.