Old vs New Tax Regime FY 2026-27: Which Saves You More?
The most expensive financial mistake an Indian salaried employee can make in 2026 is choosing the wrong tax regime. The New Regime is now the default — if you do nothing, you're on it. But for many people earning between ₹10L and ₹25L with a home loan or investments, the Old Regime still saves ₹50,000 to ₹1.5 lakh annually. This calculator does the math both ways in one click and shows you the deductions you haven't maxed out yet.
How the FY 2025-26 / 2026-27 Slabs Work
New Regime (default): 0-₹3L nil, ₹3-7L at 5%, ₹7-10L at 10%, ₹10-12L at 15%, ₹12-15L at 20%, above ₹15L at 30%. Standard deduction ₹75,000. Crucially, Section 87A rebate makes tax ZERO up to ₹7L taxable income — meaning earnings up to ₹7.75L gross effectively pay nothing. Old Regime: 0-₹2.5L nil, ₹2.5-5L at 5%, ₹5-10L at 20%, above ₹10L at 30%. Standard deduction ₹50,000. 87A rebate kicks in only up to ₹5L taxable. Health & Education cess of 4% applies on top of both regimes.
When the Old Regime Still Wins
Run this rough check. Sum your annual: 80C investments (PPF/ELSS/EPF/LIC, max ₹1.5L), 80D health insurance (max ₹75K combined for self + parents), Section 24(b) home loan interest (max ₹2L self-occupied), 80CCD(1B) NPS extra (max ₹50K), HRA exemption (varies by city). If your total deductions cross ~₹3.5-4 lakhs, the Old Regime almost certainly wins. A typical Bengaluru employee with home loan + maxed 80C + ₹25K medical insurance has ₹4.25L+ in deductions — easily ₹40,000-90,000 in annual savings vs New Regime.
The Section-by-Section Cheat Sheet
Section 80C (₹1.5L cap): PPF, ELSS mutual funds, EPF employee contribution, life insurance premium, principal repayment of home loan, tuition fees for 2 children, NSC, 5-year tax-saving FD. 80CCD(1B) (extra ₹50K): NPS contributions over and above 80C — this is the single most efficient additional ₹50K deduction. 80D (up to ₹75K): ₹25K self+family + ₹50K parents (₹50K if either is senior citizen). Preventive health check-up ₹5,000 included. Section 24(b) (₹2L): home loan interest on self-occupied property; up to ₹3L for first-time buyers under 80EEA (stamp value <₹45L). 80E: education loan interest, no upper limit, for 8 years. 80G: 50-100% deduction on registered charity donations.
Switching Regimes: The Rules Nobody Reads
Salaried employees can switch between Old and New Regime EVERY YEAR while filing ITR. Submit Form 10-IEA to opt out of the default New Regime if you choose Old. Business or professional income owners can switch only ONCE in their lifetime, then they're locked in unless they exit the business. Most employers ask which regime you want at the start of the financial year for TDS computation — but you can still override at ITR filing time and claim a refund or pay differential. Tip: even if your employer deducts TDS under New Regime, you can file ITR under Old Regime and get the difference refunded — but you'll need investment proofs handy.
Priya, ₹14L gross salary, has ₹1.5L ELSS (80C), ₹25K health insurance (80D), ₹1.8L home loan interest (24b), no NPS. New Regime tax: ₹93,600. Old Regime tax: ₹56,160. Old saves ₹37,440/year. Adding ₹50K NPS (80CCD(1B)) would save ₹10,400 more.
Result: Switching to Old Regime + maxing NPS saves Priya ₹47,840 annually — that's an extra month's rent.
Quick Wins
- 1If you don't have a home loan, no 80D parent cover, and your 80C maxes around ₹1.5L — the New Regime is almost certainly better. Don't overthink it.
- 2NPS 80CCD(1B) is the only deduction you can add to whatever you already do — open an NPS Tier-I account online in 10 minutes via your bank
- 3If you're a fresher under ₹7.75L CTC, stay on New Regime — your tax is literally zero, no paperwork needed