How to Save Tax Legally in India
(Salary ₹10–20 Lakh)
A practical, calculation-backed guide for salaried professionals — covering every legal deduction, both tax regimes, and real strategies that work in 2026.
- Why Tax Planning Is Not Optional in India
- Old vs New Tax Regime 2026 — Detailed Comparison
- Complete List of Legal Tax Saving Options
- Step-by-Step Tax Saving Strategy (₹10L / ₹15L / ₹20L)
- Best Tax Saving Investments: ELSS vs PPF vs NPS vs FD
- Common Tax Mistakes Salaried Indians Make
- Pro Tips & Expert Insights
- Frequently Asked Questions
- Conclusion & Key Takeaways
Why Tax Planning Is Not Optional in India
Every April, millions of Indian salaried professionals realise — often too late — that they handed over a significant chunk of their hard-earned money to the government without needing to. No, this isn’t about tax evasion. This is about the thousands of rupees in legal deductions that go unclaimed simply because nobody explained the rules properly.
If you earn between ₹10 lakh and ₹20 lakh per year, you are squarely in India’s “sandwich zone” — too well-paid to avoid taxes entirely, yet perfectly positioned to save ₹50,000 to ₹2.5 lakh in tax annually through smart, completely legal planning. That’s real money — enough for a family vacation, a year’s SIP corpus, or a down payment boost.
The Indian tax system, despite seeming complex, is actually designed with generous provisions for salaried individuals. The problem isn’t the law — it’s lack of awareness. Sections 80C, 80D, 24(b), the NPS deduction, HRA exemptions, LTA — these are not loopholes. They are features of the Income Tax Act that the government explicitly wants you to use.
In this guide, written for Financial Year 2025–26 (Assessment Year 2026–27), you will learn:
- How to choose between the Old and New Tax Regime with real calculations
- Every major deduction available to a salaried person in India
- Concrete tax saving strategies for ₹10L, ₹15L, and ₹20L salaries
- Which investments deliver the best combination of returns and tax saving
- Pro tips that even CAs recommend to their clients
Let’s dive deep.
Old vs New Tax Regime 2026 — Detailed Comparison
The single most important tax decision you make every year is choosing between the Old Tax Regime and the New Tax Regime. Getting this wrong can cost you ₹30,000 to ₹1 lakh or more in unnecessary tax.
Since Budget 2023, the New Tax Regime has become the default. If you don’t explicitly opt for the Old Regime while filing your return (or informing your employer), you will be taxed under the New Regime automatically. Here’s what each looks like:
Tax Slab Comparison (FY 2025-26)
| Income Slab | Old Regime Rate | New Regime Rate |
|---|---|---|
| Up to ₹2.5 lakh | Nil | Nil |
| ₹2.5L – ₹3L | 5% | Nil |
| ₹3L – ₹6L | 5% | 5% |
| ₹6L – ₹7L | 20% | 5% |
| ₹7L – ₹9L | 20% | 10% |
| ₹9L – ₹10L | 20% | 15% |
| ₹10L – ₹12L | 30% | 15% |
| ₹12L – ₹15L | 30% | 20% |
| Above ₹15L | 30% | 30% |
Key Structural Differences
| Feature | Old Tax Regime | New Tax Regime |
|---|---|---|
| Standard Deduction | ₹50,000 | ₹75,000 (enhanced from FY25) |
| Section 80C | ✓ Available | ✗ Not Available |
| Section 80D (Health Ins.) | ✓ Available | ✗ Not Available |
| HRA Exemption | ✓ Available | ✗ Not Available |
| Home Loan Interest (Sec 24) | ✓ Up to ₹2L | ✗ Not Available |
| NPS 80CCD(1B) | ✓ Extra ₹50,000 | ✗ Not Available |
| Employer NPS Contribution | ✓ Up to 10% of basic | ✓ Up to 14% of basic |
| LTA | ✓ Available | ✗ Not Available |
| Default Regime | Opt-in required | Automatic (default) |
| Rebate u/s 87A | Up to ₹5L (zero tax) | Up to ₹12L (zero tax) |
Which Regime Should You Choose? (With Real Calculations)
The rule of thumb: if your total deductions under the Old Regime exceed ₹3.75 lakh, stick with the Old Regime. Otherwise, the New Regime likely saves you more. Let’s verify this with three real cases.
Case 1: Gross Salary ₹10 Lakh
| Calculation Step | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹10,00,000 | ₹10,00,000 |
| Standard Deduction | – ₹50,000 | – ₹75,000 |
| Section 80C (ELSS/PPF/EPF) | – ₹1,50,000 | — |
| Section 80D (Health Ins.) | – ₹25,000 | — |
| NPS 80CCD(1B) | – ₹50,000 | — |
| HRA Exemption | – ₹1,20,000 | — |
| Taxable Income | ₹6,05,000 | ₹9,25,000 |
| Tax Payable (incl. cess) | ₹33,280 | ₹62,400 |
| 💰 Savings with Old Regime | You save ₹29,120 by choosing Old Regime | |
Case 2: Gross Salary ₹15 Lakh
| Calculation Step | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹15,00,000 | ₹15,00,000 |
| Standard Deduction | – ₹50,000 | – ₹75,000 |
| Section 80C | – ₹1,50,000 | — |
| Home Loan Interest (Sec 24) | – ₹2,00,000 | — |
| Section 80D | – ₹50,000 | — |
| NPS 80CCD(1B) | – ₹50,000 | — |
| HRA Exemption | – ₹1,50,000 | — |
| Taxable Income | ₹8,50,000 | ₹14,25,000 |
| Tax Payable (incl. cess) | ₹75,400 | ₹1,64,840 |
| 💰 Savings with Old Regime | You save ₹89,440 by choosing Old Regime | |
Case 3: Gross Salary ₹20 Lakh
| Calculation Step | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹20,00,000 | ₹20,00,000 |
| Standard Deduction | – ₹50,000 | – ₹75,000 |
| Section 80C | – ₹1,50,000 | — |
| Home Loan Interest (Sec 24) | – ₹2,00,000 | — |
| Section 80D (self + parents) | – ₹75,000 | — |
| NPS 80CCD(1B) | – ₹50,000 | — |
| HRA Exemption | – ₹2,00,000 | — |
| Education Loan (80E) | – ₹40,000 | — |
| Taxable Income | ₹12,35,000 | ₹19,25,000 |
| Tax Payable (incl. cess) | ₹1,67,440 | ₹3,43,200 |
| 💰 Savings with Old Regime | You save ₹1,75,760 by choosing Old Regime | |
Complete List of Legal Tax Saving Options
Section 80C — The Cornerstone of Tax Saving (Up to ₹1.5 Lakh)
Section 80C is the most widely used tax saving provision in India, allowing a deduction of up to ₹1,50,000 per financial year. The key here is that many salaried employees already contribute to EPF automatically — but often don’t realise it counts toward their 80C limit.
| Instrument | Lock-in | Returns (Approx.) | Tax on Maturity | Best For |
|---|---|---|---|---|
| ELSS Mutual Fund | 3 years | 12–15% (market-linked) | LTCG above ₹1L | Wealth creation + tax saving |
| PPF | 15 years | 7.1% (tax-free) | Fully tax-free | Risk-averse long-term saving |
| EPF (Employee) | Till retirement | 8.25% | Exempt if >5 yrs service | Automatic — already deducted |
| Life Insurance Premium | Policy term | 4–6% (traditional) | Maturity exempt (if sum assured ≥ 10x premium) | Insurance need |
| 5-Year Tax Saving FD | 5 years | 6.5–7.5% | Interest fully taxable | Capital protection |
| SCSS (Senior Citizens) | 5 years | 8.2% | Interest taxable | Retirees (not applicable here) |
| Home Loan Principal Repayment | Property lock | N/A | N/A | Home loan borrowers |
| Sukanya Samriddhi | Girl child turns 21 | 8.2% (tax-free) | Fully exempt | Parents of girl child |
| NSC (National Savings Certificate) | 5 years | 7.7% | Interest taxable annually | Conservative savers |
| Tuition Fees (2 children) | — | — | — | Parents with school-going children |
Section 80D — Health Insurance Deduction
Section 80D allows deduction of health insurance premiums paid for yourself, your spouse, children, and parents. This is one of the most underutilised deductions in the ₹10–20 lakh bracket.
| Who is Covered | Maximum Deduction (Non-Senior) | Maximum Deduction (Senior Citizen) |
|---|---|---|
| Self, Spouse & Children | ₹25,000 | ₹50,000 |
| Parents (Non-Senior) | + ₹25,000 | + ₹50,000 (if parents are senior citizens) |
| Preventive Health Checkup | ₹5,000 (included within above limits) | |
| Maximum Total Deduction | ₹50,000 | ₹1,00,000 |
Real Example: Rahul (32) earns ₹15 lakh. He pays ₹18,000 for his family’s health insurance and ₹32,000 for his senior citizen parents. Total 80D deduction: ₹50,000. At 30% slab, that saves him ₹15,600 in tax annually — more than the annual premium cost itself when viewed net-of-tax.
Section 24(b) — Home Loan Interest Deduction
If you have taken a home loan for a self-occupied property, you can claim a deduction of up to ₹2,00,000 per year on the interest paid. For a loan of ₹50 lakh at 9% interest, the first-year interest alone is around ₹4.3 lakh — so the ₹2L cap is typically fully utilised.
For a person in the 30% tax bracket, this single deduction saves ₹62,400 annually (₹2L × 31.2% effective tax). Over 10 years, that’s over ₹6 lakh in tax savings from one provision alone.
HRA (House Rent Allowance) Exemption
HRA is one of the most valuable exemptions for salaried individuals living in rented accommodation. The exempt amount is the minimum of three values:
- Actual HRA received from employer
- Actual rent paid minus 10% of basic salary
- 50% of basic salary (for metro cities: Mumbai, Delhi, Kolkata, Chennai) or 40% for non-metro
Example: Priya works in Bangalore (non-metro). Basic salary: ₹6 lakh/year. HRA received: ₹2 lakh. Rent paid: ₹1.8 lakh/year.
- Actual HRA = ₹2,00,000
- Rent – 10% of basic = ₹1,80,000 – ₹60,000 = ₹1,20,000
- 40% of basic = ₹2,40,000
- Exempt HRA = Minimum = ₹1,20,000
LTA (Leave Travel Allowance)
LTA exemption allows you to claim actual travel expenses (for domestic travel within India) for yourself and family — twice in a block of four calendar years. The current block is 2022–2025. You cannot claim LTA for international travel, hotel stays, or local transport.
For a ₹15 lakh earner with LTA of ₹80,000/year, claiming it twice in a block saves approximately ₹49,920 in tax (at 30% slab + cess). Keep boarding passes and tickets as evidence.
Standard Deduction
The Standard Deduction is the simplest deduction — no investment, no documentation, no bills required. It’s a flat deduction:
- Old Regime: ₹50,000
- New Regime: ₹75,000 (increased from Budget 2024)
Section 80CCD(1B) — NPS Additional Deduction
This is a deduction over and above the ₹1.5 lakh 80C limit. Investing up to ₹50,000 in NPS (National Pension Scheme) gives you an additional deduction, effectively making your total deduction potential ₹2 lakh (₹1.5L + ₹50K).
For a 30% slab payer, ₹50,000 in NPS saves ₹15,600 in tax. The downside? NPS maturity is partially taxable (40% must be used to purchase annuity), but the tax-deferred growth is powerful for long-term wealth building.
Section 80E — Education Loan Interest
If you have taken an education loan for higher education (for yourself, spouse, or children), the entire interest paid is deductible under Section 80E — with no upper limit. This deduction is available for 8 consecutive years from the year you start repaying.
Section 80G — Charitable Donations
Donations to notified charitable organisations are deductible at 50% or 100% of the donated amount, subject to a qualifying limit. Always check if the organisation has valid 80G registration before donating with tax benefit in mind.
Step-by-Step Tax Saving Strategy
Now let’s put everything together. Below are three complete tax planning blueprints for the three most common salary brackets in our target range.
Strategy for ₹10 Lakh Salary
₹10 Lakh Gross Salary — Optimal Tax Plan
Strategy for ₹15 Lakh Salary
₹15 Lakh Gross Salary — Optimal Tax Plan
Strategy for ₹20 Lakh Salary
₹20 Lakh Gross Salary — Optimal Tax Plan
Best Tax Saving Investments: ELSS vs PPF vs NPS vs FD
Not all 80C investments are created equal. The choice you make within that ₹1.5 lakh limit dramatically affects your long-term wealth. Here is a frank comparison:
| Parameter | ELSS | PPF | NPS (80CCD 1B) | Tax Saving FD |
|---|---|---|---|---|
| Lock-in Period | 3 years | 15 years | Till 60 years | 5 years |
| Expected Returns | 12–16% p.a. | 7.1% p.a. | 10–12% p.a. | 6.5–7.5% p.a. |
| Tax on Returns | LTCG (10%) above ₹1L | Tax-free | Partial (60% tax-free on withdrawal) | Fully taxable at slab rate |
| Risk Level | Medium-High | Low | Medium | Very Low |
| Liquidity | After 3 years | Partial after 7 yrs | Very Low (pension) | After 5 years |
| Additional Benefit | Wealth creation | Safe long-term corpus | Extra ₹50K deduction | Capital guaranteed |
| Best For | Wealth + Tax Saving | Risk-Free Long Term | Retirement + Extra Deduction | Capital Safety Only |
Recommended Investment Combination for ₹10–20 Lakh Earners
Based on analysis of post-tax returns and liquidity needs, here is the optimal 80C allocation strategy:
- ELSS SIP: ₹70,000–₹80,000/year — for wealth creation and the shortest lock-in among 80C instruments
- PPF: ₹50,000–₹60,000/year — for tax-free, risk-free long-term foundation (treat it like a bond allocation)
- EPF: The rest of the ₹1.5L limit — already auto-deducted; check your payslip
- NPS (80CCD 1B): Full ₹50,000 — mandatory addition for ₹15L+ earners in the 30% slab; saves an additional ₹15,600 in tax
Avoid putting all ₹1.5L into FDs — the post-tax returns often beat inflation by less than 1%, making it a tax-saving dead end.
Common Tax Mistakes Salaried Indians Make
Choosing the Wrong Tax Regime
Defaulting to the New Regime without calculating actual deductions. For someone with a home loan + HRA + full 80C, this can cost ₹1–2 lakh annually.
Over-Investing Just to Save Tax
Buying ULIPs, endowment plans, or traditional insurance policies with terrible returns solely for 80C. Always evaluate post-tax yield before committing.
Ignoring 80D Completely
Millions of salaried individuals never file 80D claims despite paying health insurance. That’s ₹25,000–₹50,000 in free deductions left on the table.
Last-Minute March Rush
Panic-buying tax instruments in February–March often leads to poor decisions — wrong funds, wrong insurance products, or duplicating investments.
Not Claiming HRA
Many employees don’t submit rent receipts to their employer. If your HRA goes unclaimed, you pay more TDS all year and have to claim a refund in ITR — causing cash flow issues.
Ignoring NPS for ₹50K Extra Deduction
The 80CCD(1B) deduction is over and above 80C but is almost universally ignored by people below 40. At 30% slab, this alone saves ₹15,600 per year.
Pro Tips & Expert Insights
1. Tax Harvesting on ELSS/Equity Mutual Funds
Long-term capital gains (LTCG) on equity above ₹1 lakh are taxed at 10%. However, you can legally book gains up to ₹1 lakh every financial year completely tax-free. Strategy: In March each year, redeem units with ₹1 lakh in unrealised gains and immediately reinvest. You reset your cost basis with no tax outflow. Over a decade, this can legally shelter ₹10 lakh in gains.
2. Salary Restructuring — Ask Your HR
Many employers allow employees to restructure their Cost-to-Company (CTC) by increasing certain allowances. Consider requesting:
- Meal Allowance / Food Coupons: Up to ₹2,400/month (₹28,800/year) is fully exempt
- Mobile and Internet Reimbursement: Actual expenses on business use are exempt
- Books and Periodicals Allowance: Fully exempt on actual expense basis
- Employer NPS Contribution: Employer can contribute up to 14% of basic to NPS, fully exempt under Section 80CCD(2) — this is the single most powerful salary restructuring tool
3. Segregate Your Insurance and Investment
The golden rule of modern financial planning: buy pure term insurance for protection (₹1–2 crore cover at ₹10,000–₹20,000/year premium) and invest separately in ELSS or PPF for 80C. Never mix insurance and investment — the bundled products (endowment, money-back, ULIP) consistently underperform on both counts.
4. Claim Both Home Loan Principal (80C) and Interest (Sec 24)
Home loan borrowers often know about Section 24 (interest deduction) but forget that the principal repayment is ALSO deductible under Section 80C. A typical EMI of ₹40,000/month on a ₹50L loan starts with ₹2–3L in principal repayment annually — which occupies most of your 80C limit automatically, leaving room for ELSS at the margin.
5. File Your ITR on Time to Carry Forward Losses
If you have capital losses (e.g., from equity sell-offs), filing ITR on time lets you carry forward these losses for 8 years to set off against future gains. Missing the deadline means you forfeit this valuable benefit.
Frequently Asked Questions
Conclusion & Key Takeaways
Saving tax legally in India is not a trick, a hack, or a loophole. It is the deliberate, informed use of provisions that Parliament itself has written into the Income Tax Act for salaried individuals. The system rewards those who plan — and silently penalises those who don’t.
Here are the most important takeaways from this guide:
- Compare regimes every April before informing your employer. For most people earning ₹12–20 lakh with deductions, the Old Regime saves more — but run your own numbers.
- Max out Section 80C (₹1.5L) using a smart mix of ELSS + PPF + EPF (not insurance-heavy products).
- Don’t ignore NPS — ₹50,000 via 80CCD(1B) is the easiest ₹15,600 you can save at the 30% slab.
- Claim HRA properly — submit rent receipts to your employer at the start of the year, not March.
- If you have a home loan, Section 24(b) is a ₹2 lakh automatic deduction. Don’t leave it unclaimed.
- Buy adequate health insurance — 80D gives you up to ₹1 lakh in deductions, and it protects you from financial catastrophe. Win-win.
- Start planning in April, not February. Last-minute tax planning leads to poor financial decisions.
For further reading, refer to the official Income Tax India portal and the latest SEBI guidelines on ELSS mutual funds. Consider consulting a Registered Investment Adviser (RIA) or qualified Chartered Accountant for advice tailored to your exact financial situation.
Related guides on Invest India Blog: Best ELSS Mutual Funds to Invest in 2026 | NPS vs EPF: Which is Better for Retirement? | How to File ITR Online in India — Step by Step Guide