Old vs New Tax Regime: Which is Better at ₹15 Lakh Salary? (FY 2026-27)
Old vs new tax regime compared at ₹15 lakh salary for FY 2026-27 — break-even deductions, exact tax saved and the right pick for salaried Indians.
The central question for ₹15L earners
At a ₹15 lakh annual salary, you sit in the most analytically interesting tax bracket in India. The new regime offers genuinely lower slab rates; the old regime offers genuinely valuable deductions. Choosing wrong costs ₹40,000-90,000 per year — equivalent to a one-month salary.
Slab rates: a side-by-side
| Income slab | Old regime | New regime (FY 2026-27) |
|---|---|---|
| Up to ₹2.5 L | Nil | Nil |
| ₹2.5 - 3 L | 5% | Nil |
| ₹3 - 5 L | 5% | 5% (₹3-7L) |
| ₹5 - 7 L | 20% | 5% |
| ₹7 - 10 L | 20% | 10% |
| ₹10 - 12 L | 30% | 15% |
| ₹12 - 15 L | 30% | 20% |
| Above ₹15 L | 30% | 30% |
On a flat income basis, the new regime is meaningfully lower — about ₹90,000 less tax at ₹15 L. The whole question is whether your deductions in the old regime can close that gap.
What you can claim in the old regime
- Standard deduction: ₹50,000 (₹75,000 in new regime FY 26-27)
- 80C: ₹1,50,000 (ELSS, PPF, EPF, life insurance, principal home loan)
- 80CCD(1B): ₹50,000 additional for NPS
- 80D: ₹25,000 self + ₹50,000 parents (senior)
- HRA exemption: significant for metro renters, often ₹1-3 lakh
- Home loan interest: up to ₹2 lakh under Section 24(b)
- LTA: travel allowance, typically ₹25,000-50,000
Worked example: ₹15 L salary, two scenarios
Scenario A — Old regime with full deductions: ₹15L salary. Deductions: standard ₹50k, 80C ₹1.5L, NPS ₹50k, 80D ₹50k, HRA ₹1.8L, home loan interest ₹2L. Total deductions: ₹6.8L. Taxable income: ₹8.2L. Tax: roughly ₹78,000. With cess: ₹81,000.
Scenario B — New regime, no deductions: ₹15L salary. Standard deduction ₹75k. Taxable: ₹14.25L. Tax: roughly ₹1,05,000. With cess: ₹1,09,000.
Old regime wins by ₹28,000/year — but only because of the heavy deductions, particularly HRA and home loan interest. Take those two away and the math flips immediately.
The HRA effect — the single biggest swing factor
HRA exemption depends on your basic salary, rent paid, and city. In Mumbai/Delhi/Bangalore/Chennai/Kolkata (metro = 50% basic), a typical 40k/month rent on a ₹7L basic salary yields HRA exemption of ₹2.4-3L per year. This single deduction often makes the old regime the winner for metro renters.
Non-metro residents with lower rents (or homeowners who don't claim HRA) typically find the new regime more favourable. Compute HRA precisely with our HRA Calculator.
Home loan interest — the second big swing
Section 24(b) allows up to ₹2 lakh deduction on home loan interest for self-occupied property. At a 30% slab, this is ₹60,000 of tax saved. Combined with HRA (for those who can claim both — typically when working in a different city than the home), home loan + HRA tilts the old regime significantly.
A simple decision tree
- Compute your annual deductions: standard + 80C + 80CCD(1B) + 80D + HRA + home loan interest + LTA.
- If total deductions ≥ ₹3.75 lakh: old regime usually wins.
- If total deductions ≤ ₹2.5 lakh: new regime usually wins.
- If between ₹2.5-3.75 lakh: use the calculator — the answer depends on exact salary.
Income Tax on ₹12 Lakh Salary
Compare your tax outflow under both regimes — switch input scenarios easily.
EPF, ELSS, PPF, LIC
Re-evaluate every year
The choice is not permanent. Salaried employees can switch annually (subject to certain conditions). Slab rates change in most budgets. Your deductions may change as life situations evolve (marriage, child, home purchase). Spending 30 minutes once a year to re-run the comparison is cheap insurance against overpaying tax.
For broader tax-planning strategy beyond regime choice, read our top 5 tax-saving investments guide and mutual fund taxation guide.
Three mistakes to avoid
- Choosing based on what colleague chose — your deductions are different.
- Buying tax-saving products just for old regime — only invest if the underlying product makes sense.
- Not declaring HRA properly — keep rent receipts, landlord PAN (above ₹1L rent), proper documentation.
Frequently asked questions
Q.Can I switch between regimes every year?
Salaried employees: yes, annually. Business income earners: only once (with some flexibility to switch back later, with conditions). Choose carefully if you have business income.
Q.Does HRA work in the new regime?
No. HRA exemption is not available in the new regime. If your HRA exemption is high (₹2L+), this alone often tips the balance toward old regime.
Q.What if my salary increases mid-year?
Compute based on full-year expected income. Mid-year hikes don't usually change the regime decision unless they cross a major slab boundary.
Q.Are LTCG taxes different between regimes?
No. LTCG, STCG and other capital gains taxes are the same under both regimes. Only your salary slab tax differs.