The biggest tax savings come from Section 80C (up to Rs 1,50,000), the extra Rs 50,000 NPS deduction under 80CCD(1B), 80D health insurance and home-loan interest — but almost all of these work only under the OLD tax regime. The new regime is now the default: it disallows these deductions, but gives a bigger standard deduction of Rs 75,000 and an 87A rebate that makes income up to Rs 12 lakh taxable (about Rs 12.75 lakh salary) tax-free. So the smart move is to compare both regimes first, then invest.
You cannot stack most of these deductions on top of the new regime. Under the new regime (default) you rely on the Rs 75,000 standard deduction and the 87A rebate (nil tax up to Rs 12 lakh taxable). Under the old regime you actively opt in and claim 80C, 80D, 80CCD(1B), 24(b) home-loan interest, HRA and more. Run both before locking money in.
Tax-Saving Deductions for FY 2025-26
Every major deduction, its ceiling and which regime allows it. Unless noted, the deduction is available only in the old regime.
| Section | What it covers | Max deduction | Regime |
|---|---|---|---|
| 80C | PPF, ELSS, EPF, LIC, NSC, SSY, home-loan principal, tuition | Rs 1.5L | Old only |
| 80CCD(1B) | Extra NPS contribution (over the 80C cap) | Rs 50k | Old only |
| 80D | Health insurance — self & family | Rs 25k | Old only |
| 80D | Health insurance — senior-citizen parents | Rs 50k | Old only |
| 24(b) | Home-loan interest — self-occupied | Rs 2L | Old only |
| 80E | Education-loan interest (8 years) | No limit | Old only |
| HRA (10(13A)) | House rent allowance (metro/non-metro) | Varies | Old only |
| Standard deduction | Salaried / pensioners (flat) | Rs 75k | Both |
| 80CCD(2) | Employer NPS contribution | 14%/10% salary | Both |
Standard deduction is Rs 75,000 in the new regime and Rs 50,000 in the old regime for salaried taxpayers. 80CCD(2) employer-NPS cap is 14% of salary (govt / new-regime employees) or 10% otherwise. Only 80CCD(2) and 80JJAA survive in the new regime.
Old Regime Deductions vs New Regime Rebate
The new tax regime is the default from FY 2023-24. It has lower slab rates and an 87A rebate up to Rs 12 lakh taxable income, but disallows almost every deduction. The old regime keeps 80C, 80D and the rest — you must opt in to use them.
Old regime — deductions available
- Full Rs 1.5L 80C + Rs 50k NPS 80CCD(1B)
- 80D, 24(b) home-loan interest, 80E, HRA
- Standard deduction Rs 50,000 (salaried)
- 87A rebate up to Rs 5 lakh taxable
- Wins when total deductions are large
New regime (default) — no deductions
- 80C / 80D / 80CCD(1B) not available
- Only 80CCD(2) employer NPS & 80JJAA allowed
- Standard deduction Rs 75,000 (salaried)
- 87A rebate up to Rs 12L taxable — nil tax to ~Rs 12.75L salary
- Wins when you claim few deductions
If your deductions (80C + 80D + home-loan interest + HRA) are modest, the new regime's lower rates, Rs 75,000 standard deduction and Rs 12 lakh nil-tax threshold can beat the old regime even with zero investments. Only lock money into long-lock-in products (PPF, ELSS, NSC) after you have confirmed the old regime actually saves you more.
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A deduction cuts your taxable income, so the tax saved equals the deduction times your marginal slab rate plus 4% cess. Here is the saving on a full 80C claim, and on 80C plus the extra Rs 50,000 NPS, for an old-regime taxpayer at the 30% slab.
80C only · 30% slab
80C + NPS · 30% slab
Layer in 80D health insurance and up to Rs 2 lakh of home-loan interest under Section 24(b) and a high-deduction taxpayer can push old-regime deductions well past Rs 4 lakh. See our income-tax slabs for the exact rate that applies to you.
Old regime + deductions wins if
- You pay a home-loan EMI (principal 80C + Rs 2L interest 24(b))
- You claim large HRA in a metro city
- Your 80C + 80D + interest together exceed roughly Rs 3.5–4 lakh
New regime wins if
- Your deductions are small or you rent without HRA
- Your income is at or below the Rs 12 lakh nil-tax threshold
- You prefer liquidity over long lock-in tax-saving products
The Best Rs 2 Lakh Tax-Saving Allocation
If you have confirmed the old regime saves you more, here is a balanced way to use the Rs 1.5 lakh 80C ceiling plus the extra Rs 50,000 NPS window — mixing growth, safety and the additional deduction.
| Investment | Amount | Why |
|---|---|---|
| ELSS mutual fund (SIP) | Rs 50,000 | Shortest 80C lock-in (3 yrs); equity growth |
| PPF | Rs 50,000 | Government-backed, tax-free (EEE) at 7.1% |
| EPF (auto from salary) | Already invested | Employee share counts inside the 80C cap |
| NPS via 80CCD(1B) | Rs 50,000 | Extra Rs 50k deduction over and above 80C |
EPF often already fills part of the Rs 1.5L 80C limit — use ELSS/PPF only for the remaining headroom. ELSS and NPS returns are market-linked and not guaranteed.
- Old vs new regime compared first
- PPF / ELSS invested by 31 March
- NPS Rs 50k for 80CCD(1B)
- Health-insurance premium paid (80D)
- Home-loan principal & interest certificate
- LIC / insurance premium receipts
- EPF annual statement
- HRA rent receipts / landlord PAN
- Form 12BB submitted to employer
- Old regime selected before filing
Unlike advance tax, there is no window after 31 March to make FY 2025-26 tax-saving investments. PPF deposits, ELSS SIP instalments and LIC premiums all count only if paid on or before 31 March 2026. Also, for a home loan only the principal is 80C — the interest (up to Rs 2 lakh, self-occupied) is a separate deduction under Section 24(b).
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