Tax Regime Comparison
Old vs New Tax Regime — Which is Better for You in FY 2025-26?
The new tax regime is now India's default. But for millions of salaried professionals with deductions, the old regime still wins. This guide shows you exactly when to switch — with real numbers for every income level, break-even analysis, and a worked example.
Rs 12.75L
Effective zero-tax limit for salaried (new regime)
Rs 5L
Zero-tax limit in old regime via 87A rebate
Rs 75,000
Standard deduction — new regime (FY 2025-26)
Rs 60,000
Section 87A rebate cap — new regime
The Headline Change: New Regime Is Now the Default
From FY 2023-24 onwards, the new tax regime became the default option for all individual taxpayers in India under Section 115BAC. This means if you do nothing — if you simply file your return without making an active choice — your income will be taxed under the new regime. To use the old regime, you must explicitly opt in by filing Form 10-IEA before the ITR due date, which is July 31 for most salaried individuals and October 31 for those with audit requirements.
This policy shift was designed to simplify tax compliance and reduce the administrative burden of deduction-tracking for millions of taxpayers. However, the old regime remains available and is frequently the better financial choice for taxpayers who systematically invest in PPF, ELSS, health insurance, pay rent in metro cities, or service home loan interest. The decision requires a disciplined calculation, which this guide walks you through.
The Union Budget 2025-26 further enhanced the new regime's appeal. The nil-tax threshold was raised from Rs 3 lakh to Rs 4 lakh, and the Section 87A rebate was increased from Rs 25,000 to Rs 60,000, effectively making income up to Rs 12,00,000 tax-free. For salaried individuals, the additional Rs 75,000 standard deduction pushes the effective zero-tax threshold to Rs 12,75,000. This makes the new regime a straightforward choice for anyone earning at or below this level.
Tax Slab Comparison: Old Regime vs New Regime — FY 2025-26
New Regime Slabs (Default from FY 2023-24)
Standard deduction: Rs 75,000 for salaried employees
Old Regime Slabs (Opt-in required via Form 10-IEA)
Standard deduction: Rs 50,000 for salaried employees
Break-Even Deduction Analysis: When Does Old Regime Win?
The old regime wins only when your total eligible deductions exceed a critical threshold — the break-even point. Below this threshold, the new regime's lower rates produce a smaller tax bill even without any deductions. Here are the approximate break-even levels for key salary points:
| Gross Salary | New Regime Tax (approx.) | Break-Even Deductions | Guidance |
|---|---|---|---|
| Rs 10 lakh | ~Rs 33,800 | ~Rs 2.75 lakh | New regime often wins below this deduction level |
| Rs 15 lakh | ~Rs 97,500 | ~Rs 3.25 lakh | Old regime better with full 80C + 80D + HRA |
| Rs 20 lakh | ~Rs 2,08,000 | ~Rs 3.75 lakh | Old wins if HRA + 80C + 80CCD(1B) all claimed |
| Rs 30 lakh | ~Rs 5,08,000 | ~Rs 4.25 lakh | Both regimes close; exact deductions decide |
| Rs 50 lakh | ~Rs 11,58,000 | ~Rs 4.75 lakh | New regime tends to win at very high incomes |
Break-even deductions include all old-regime benefits: standard deduction Rs 50K, 80C (Rs 1.5L), 80D, HRA exemption, 80CCD(1B) NPS Rs 50K, Section 24(b) home loan interest Rs 2L, professional tax, and LTA. If your total exceeds the break-even for your income, file Form 10-IEA to opt in.
What You Give Up vs What You Gain in the New Regime
Deductions Lost in New Regime
- Section 80C — Rs 1,50,000 (PPF, ELSS, LIC, EPF, NSC, tuition fees, home loan principal)
- Section 80D — Rs 25,000–1,00,000 (health insurance for self and parents)
- Section 80CCD(1B) — Rs 50,000 (NPS additional employee contribution)
- HRA exemption under Section 10(13A) — can be Rs 1-4L+ in metro cities
- Home loan interest Section 24(b) — up to Rs 2,00,000 for self-occupied property
- Leave Travel Allowance under Section 10(5)
- Professional tax deduction (~Rs 2,400 per year)
- 80E education loan interest (uncapped, first 8 years of repayment)
- 80G donations to eligible charitable institutions
- Entertainment allowance for government employees
Benefits Gained in New Regime
- Nil tax up to Rs 4 lakh income (old regime: Rs 2.5L nil threshold)
- 87A rebate up to Rs 60,000 (old regime: only Rs 12,500 up to Rs 5L)
- Effective zero tax for salaried income up to Rs 12,75,000 after std deduction
- Higher standard deduction of Rs 75,000 (old regime: Rs 50,000)
- Lower marginal tax rates across all income brackets
- Employer NPS under 80CCD(2) still allowed — no cap for govt employees
- No investment proof required; no tax planning pressure through the year
- Reduced scrutiny risk from mismatched deduction claims
- Simpler ITR filing with fewer schedules and supporting documents
- Freedom to invest based on financial goals, not tax lock-ins
Decision Guide: Which Regime Is Right for You?
Is your gross salary Rs 12.75 lakh or below?
Yes → Choose new regime. Zero tax payable after standard deduction and 87A rebate. No deduction planning needed.
Do you pay rent and receive HRA in your salary package?
Yes → Calculate your HRA exemption using the three-way minimum formula. If it is above Rs 60,000/year, add it to your potential deduction pool.
Do you have a home loan on a self-occupied property?
Yes → Add up to Rs 2,00,000 in Section 24(b) interest deduction. Also count the principal repayment towards 80C.
Add all old-regime deductions: 80C + 80D + 80CCD(1B) + HRA + home loan interest + std deduction
If total deductions exceed the break-even for your income level (see table above) → opt for old regime with Form 10-IEA. Otherwise → new regime.
Are you a business owner or freelancer?
You can switch old → new regime only once in your lifetime. Choose carefully. Salaried individuals can switch every year.
Worked Example: Rs 15 Lakh Salary — Old vs New Regime
Assumptions: Gross salary Rs 15,00,000 | Basic salary Rs 7,50,000 | HRA received Rs 3,00,000 | Rent paid Rs 20,000/month in Delhi (metro) | 80C investments Rs 1,50,000 | Health insurance premium Rs 25,000 | NPS under 80CCD(1B) Rs 50,000
Old Regime Calculation
New Regime Calculation
Verdict: Old regime saves Rs 1,38,580 for this taxpayer.
Total deductions claimed: Rs 4.1 lakh (standard + HRA + 80C + 80D + NPS). This exceeds the break-even of ~Rs 3.25L for Rs 15L income. Old regime wins decisively. Filing Form 10-IEA before July 31 is essential to claim this benefit.
Frequently Asked Questions
Can I switch between old and new tax regime every year?
Salaried individuals and those without business income can switch regimes every financial year. Business owners can switch from old to new only once in a lifetime. After switching to new as a business owner, you can revert to old only once and then must permanently stay in new.
Which regime is better for a salary of Rs 12 lakh?
Under the new regime, Rs 12L salary after Rs 75K standard deduction gives taxable income of Rs 11.25L. Tax is approximately Rs 75,000 with a partial 87A rebate, net ~Rs 15,600. Under old regime with standard deduction + 80C + 80D, tax is around Rs 90,000+. New regime wins at Rs 12L unless deductions exceed Rs 2.5L.
What is the new tax regime default rule from FY 2024-25?
From FY 2023-24, the new regime is default. You must file Form 10-IEA before the ITR due date to opt into the old regime. Failing to file this form means your income is assessed under the new regime, even if you submitted investment proofs to your employer.
What deductions are NOT available in the new regime?
Disallowed deductions include: 80C (PPF, ELSS, LIC), 80D (health insurance), 80CCD(1B) (NPS Rs 50K), HRA under Section 10(13A), LTA under Section 10(5), professional tax, home loan interest under Section 24(b) for self-occupied property, 80E education loan interest, and 80G donations.
What deductions still work in the new tax regime?
Available deductions: Rs 75,000 standard deduction for salaried, employer NPS under 80CCD(2) up to 10-14% of basic salary, home loan interest for let-out property (unlimited), family pension deduction Rs 15,000, and 80JJAA for eligible businesses hiring new employees.
What is the break-even deduction level to choose old regime?
Approximate break-even deduction totals: Rs 2.75L for Rs 10L income, Rs 3.25L for Rs 15L, Rs 3.75L for Rs 20L, Rs 4.25L for Rs 30L, and Rs 4.75L for Rs 50L. These thresholds account for all major old-regime deductions. Use Oquilia's regime comparison calculator for your exact figure.
Does the 87A rebate apply in the old regime too?
Yes, but differently. New regime: rebate up to Rs 60,000 for taxable income up to Rs 12L. Old regime: rebate up to Rs 12,500 for taxable income up to Rs 5L. This makes income up to Rs 5L effectively zero-tax in the old regime as well, through the combined effect of the standard deduction (Rs 50K) and 87A rebate.
How do I inform my employer about regime choice?
Submit Form 12BB or a written declaration to your employer at the start of the financial year (April). This governs TDS deductions throughout the year. You can revise your final regime choice when filing your ITR, but if you switch to old regime at filing time, you must file Form 10-IEA.
Still unsure which regime saves you more?
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