Overview
India operates two parallel personal income tax regimes for individuals and Hindu Undivided Families (HUFs). The Old Tax Regime has been in place for decades, offering dozens of deductions and exemptions that reward structured savings and investment. The New Tax Regime, introduced in FY 2020-21 and made the default from FY 2023-24, trades those deductions for lower slab rates and a higher rebate ceiling.
Choosing the wrong regime costs you real money. A salaried employee at Rs 15 lakh who picks the wrong option could pay Rs 10,000–30,000 more in tax than necessary. This comparison gives you the full picture — slabs, deductions, worked examples, and a break-even analysis — so you can make the right call for FY 2026-27.
Use the Income Tax Calculator to run your own numbers once you have read through the comparison below.
Tax Regime Comparison: Old vs New (FY 2026-27)
| Dimension | Old Tax Regime | New Tax Regime |
|---|---|---|
| Tax Slabs | Up to Rs 2.5L: Nil; Rs 2.5–5L: 5%; Rs 5–10L: 20%; Above Rs 10L: 30% | Up to Rs 4L: Nil; Rs 4–8L: 5%; Rs 8–12L: 10%; Rs 12–16L: 15%; Rs 16–20L: 20%; Rs 20–24L: 25%; Above Rs 24L: 30% |
| Default Status | Must opt in explicitly | Default regime since FY 2023-24 |
| Standard Deduction | Rs 50,000 | Rs 75,000 |
| HRA Exemption | Available under Section 10(13A) | Not available |
| Section 80C (up to Rs 1.5L) | Available (PPF, ELSS, LIC, EPF, NSC, etc.) | Not available |
| Section 80D (health insurance) | Up to Rs 25,000 self; Rs 50,000 senior citizen parents | Not available |
| NPS — Section 80CCD(1B) | Rs 50,000 additional deduction | Not available (employer contribution under 80CCD(2) still allowed) |
| Home Loan Interest — Section 24B | Up to Rs 2 lakh deduction | Not available |
| Rebate under Section 87A | Up to Rs 12,500 for income below Rs 5L | Up to Rs 60,000 for income below Rs 12L |
Old Tax Regime — Deep Dive
The Old Tax Regime rewards taxpayers who actively channel money into tax-saving instruments. Its slab structure is steeper — 20% kicks in at Rs 5 lakh and 30% at Rs 10 lakh — but its deduction framework can dramatically reduce your taxable income before those rates apply.
Who benefits most
- Salaried employees paying high rent in metro cities who claim a large HRA exemption
- Individuals with home loans, where Section 24B gives up to Rs 2 lakh in interest deduction
- Those maximising Section 80C through PPF, ELSS, EPF top-up, or LIC premiums
- Taxpayers contributing to NPS who claim the extra Rs 50,000 under Section 80CCD(1B)
- People with parents above 60 who pay health insurance premiums (80D up to Rs 50,000 for senior parents)
Worked example — Rs 15 lakh gross salary
A salaried employee in a metro with the following profile:
- Gross salary: Rs 15,00,000
- HRA exemption: Rs 3,00,000 (40% of basic, actual rent paid, 10% basic rule — whichever is lowest)
- Standard deduction: Rs 50,000
- Section 80C: Rs 1,50,000 (ELSS + EPF + LIC)
- Section 80CCD(1B) NPS: Rs 50,000
- Section 80D health insurance: Rs 25,000
Taxable income: Rs 15,00,000 − Rs 50,000 − Rs 3,00,000 − Rs 1,50,000 − Rs 50,000 − Rs 25,000 = Rs 9,25,000
Tax calculation:
- Rs 0–2.5L: Nil = Rs 0
- Rs 2.5–5L at 5%: Rs 12,500
- Rs 5–9.25L at 20%: Rs 85,000
- Total tax before cess: Rs 97,500
- Add 4% health and education cess: Rs 3,900
- Total tax payable: Rs 1,01,400
New Tax Regime — Deep Dive
The New Tax Regime is built around simplicity and lower rates. You give up most deductions and exemptions, but the slab structure distributes the tax burden more gradually — especially for income between Rs 8–24 lakh — and the Section 87A rebate zeroes out tax entirely for net income up to Rs 12 lakh.
Who benefits most
- Early-career employees with income below Rs 12.75 lakh (zero tax after standard deduction)
- Salaried employees with company-provided accommodation who cannot claim HRA
- Individuals with few or no investments in 80C instruments
- High earners above Rs 20 lakh with normal (not maximised) deductions
- Self-employed professionals who prefer simplicity over deduction tracking
Worked example — same Rs 15 lakh gross salary
Same employee, new regime:
- Gross salary: Rs 15,00,000
- Standard deduction: Rs 75,000
- Taxable income: Rs 14,25,000
Tax calculation:
- Rs 0–4L: Nil = Rs 0
- Rs 4–8L at 5%: Rs 20,000
- Rs 8–12L at 10%: Rs 40,000
- Rs 12–14.25L at 15%: Rs 33,750
- Total tax before cess: Rs 93,750
- Add 4% cess: Rs 3,750
- Total tax payable: Rs 97,500
Wait — that is Rs 97,500 under the new regime vs Rs 1,01,400 under the old regime. The new regime saves Rs 3,900 in this example. But this employee had Rs 3 lakh HRA. If HRA was Rs 4 lakh, the old regime wins by a wide margin. The break-even point shifts with every rupee of deduction.
Numbers Head-to-Head
Rs 10 lakh gross salary
| Scenario | Old Regime Tax | New Regime Tax |
|---|---|---|
| Full 80C (Rs 1.5L) + HRA (Rs 1.5L) + 80D (Rs 25K) + standard deduction | ~Rs 20,800 | ~Rs 24,700 |
| Only standard deduction, no other deductions | ~Rs 54,600 | ~Rs 24,700 |
With a full deduction stack at Rs 10 lakh, the old regime saves roughly Rs 3,900. With minimal deductions, the new regime saves Rs 29,900.
Rs 20 lakh gross salary
| Scenario | Old Regime Tax | New Regime Tax |
|---|---|---|
| Full deductions (80C + HRA Rs 2L + 80D + NPS + home loan) | ~Rs 1,40,400 | ~Rs 1,89,800 |
| Minimal deductions (only standard deduction) | ~Rs 2,53,500 | ~Rs 2,28,800 |
At Rs 20 lakh with maximum deductions, the old regime saves over Rs 49,000. With minimal deductions, the new regime saves Rs 24,700.
Run your precise scenario on the Income Tax Calculator — change the deduction inputs to see which regime wins for your specific numbers.
The Break-Even Rule
The old regime beats the new regime when your total additional deductions (everything beyond the standard deduction) exceed approximately Rs 3.75 lakh. Below that threshold, the new regime's lower slab rates and higher rebate make it superior.
For most taxpayers claiming:
- Rs 1.5L under 80C
- Rs 50K under NPS 80CCD(1B)
- Rs 25K under 80D
- Rs 1L+ under HRA or home loan interest
...the old regime total deductions easily cross Rs 3.25–3.75 lakh, making the old regime the better choice.
If you are a young professional with no home loan, EPF contribution only (mandatory, not extra), no NPS, and living in company accommodation — your deductions may be just the standard deduction, making the new regime clearly better.
Key Terms
- Section 80C — Deduction for specified investments and expenses up to Rs 1.5 lakh per financial year
- HRA — House Rent Allowance; a salary component partly exempt from tax if you pay rent
- Standard Deduction — A flat deduction from salary income (Rs 50,000 old regime, Rs 75,000 new regime) with no proof required
- Surcharge — Additional tax levied on high-income taxpayers above Rs 50 lakh; applies under both regimes
Verdict
Choose the Old Tax Regime if:
- Your total deductions (80C + HRA + 80D + NPS + home loan + others) exceed Rs 3.75 lakh
- You pay high rent in a metro city and claim a substantial HRA exemption
- You have an active home loan with interest payments near Rs 2 lakh per year
- You systematically invest Rs 1.5 lakh under Section 80C every year
Choose the New Tax Regime if:
- Your income is below Rs 12.75 lakh (zero tax after Rs 75,000 standard deduction)
- You have few investments in 80C instruments and no home loan interest
- You live in company-provided accommodation and cannot claim HRA
- Your income is above Rs 20 lakh and your deductions are average (not maximised)
- You prefer simplicity and do not want to track and prove multiple deductions
For most new hires and early-career employees, the new regime is the safe default. For experienced employees with mortgages, PPF, ELSS, and NPS contributions, a quick calculation almost always reveals the old regime wins. Use the Income Tax Calculator at the start of every financial year to confirm before informing your employer.