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Retirement Corpus Planning: How Much Do You Need and How to Build It

CalculateToday Editorial · Finance Team·9 min read·Updated 28 May 2026

Most people underestimate how much they need for retirement. With 25-30 years of post-retirement life, 6% inflation, and rising healthcare costs, retirement in India is expensive. This guide shows you how to calculate your exact retirement number — and a practical path to reach it.

Step 1: Calculate Your Retirement Expense

Start with current monthly expenses. Remove work-related costs (commute, work attire, work lunches). Add: higher healthcare costs (plan for 15% of retirement income), travel/leisure (retirees often spend more), inflation-adjusted housing if you plan to move.

Rule of thumb: 70-80% of pre-retirement monthly expenses is a typical retirement income target. If you spend ₹80,000/month now, target ₹56,000-64,000/month in today's money.

Inflation adjustment: Current monthly expense × (1 + inflation)^years to retirement. At ₹60,000/month today, 6% inflation, 20 years to retirement: Target = ₹60,000 × (1.06)^20 = ₹1,92,428/month in nominal terms.

Step 2: Calculate Corpus Required

The corpus must generate the required income AND last 25-30 years while beating inflation.

4% rule (William Bengen rule, adapted for India): Corpus = Annual retirement expense ÷ 0.04. At ₹1.92L/month = ₹23L/year: Corpus = ₹23L ÷ 0.04 = ₹5.75 crore.

India-specific adjustment: India's higher inflation (6% vs 3% in US) and healthcare inflation (12-15%) suggests using 3.5% withdrawal rate for safety. At 3.5%: Corpus = ₹23L ÷ 0.035 = ₹6.57 crore.

Use our Retirement/FIRE Calculator to model this with your exact numbers — current age, retirement age, current expenses, expected inflation.

Tip

The 4% rule says: if you invest your corpus in a diversified portfolio (60% equity, 40% debt) earning ~8-10%, you can withdraw 4% annually and the corpus lasts 30 years. At 3.5%, the corpus lasts 35-40 years.

Step 3: Assess What You Already Have

EPF/VPF balance: Check EPFO UAN portal. Your current EPF + future contributions + employer matching will compound to a significant amount. Use our EPF Calculator to project this.

PPF balance: Check on India Post or bank netbanking. If you have been investing ₹1.5L/year for 10 years, your PPF is likely ₹20-25L already.

NPS balance: Check on NSDL CRA portal or your fund manager's app.

Other investments (mutual funds, stocks, real estate equity): Factor in current value growing at expected rates.

Gap = Retirement Corpus Target − Projected value of existing assets at retirement. Only the gap needs to be built through new investments.

Step 4: Build the Corpus — Best Instruments

NPS (best 80C + 80CCD wrapper): Up to ₹2L/year deductible. Government employees get employer contribution. Choose aggressive (75% equity) till 50, then gradually reduce. Target ₹1-2 crore from NPS alone.

PPF (EEE, safe floor): ₹1.5L/year maximum. At ₹1.5L/year for 30 years at 7.1%, corpus = ~₹1.52 crore — completely tax-free.

Equity SIP (wealth multiplication): The majority of the gap should be funded by equity SIP. ₹20,000/month at 12% CAGR for 25 years = ₹3.73 crore.

EPF (automatic, employer-matched): Treat this as baseline. The employer matching effectively doubles your return on this portion.

Avoid over-concentration in real estate: Illiquid, high transaction cost, difficult to draw monthly income from.

Early Retirement (FIRE): The Numbers

FIRE (Financial Independence, Retire Early) targets retirement at 40-50 instead of 60. With 40-50 years of post-retirement life, the corpus requirement is much higher.

Lean FIRE (₹50,000/month target): Corpus needed = (₹50,000 × 12) ÷ 3% = ₹2 crore (at today's money; inflation-adjust for target retirement year).

Fat FIRE (₹1,00,000/month target): Corpus = ₹4 crore+ in today's money.

FIRE strategy: Higher savings rate (50-70% of income), aggressive equity allocation (80-90%), strict lifestyle discipline, multiple income streams (passive income, part-time work) to reduce corpus requirement.

The most common FIRE mistake: Under-estimating healthcare costs. Budget ₹20,000-40,000/month for family health insurance + out-of-pocket from age 50.

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Frequently Asked Questions

Is ₹1 crore enough to retire in India?

For most urban Indians in 2026, ₹1 crore is insufficient for a 30-year retirement. At 4% withdrawal, ₹1 crore gives ₹4L/year = ₹33,000/month. After 6% inflation over 15 years, that ₹33,000 has the buying power of ₹13,800 today. Plan for ₹3-5 crore minimum for a comfortable urban retirement.

What is the ideal asset allocation for retirement savings?

By age: 100 minus age in equity is the classic rule. Age 30 → 70% equity. Age 50 → 50% equity. Age 60 → 40% equity (reduce to 30-35% in retirement). India-specific: maintain slightly higher equity (5% above the formula) due to higher inflation.

Should I prioritize NPS or PPF for retirement?

Both. PPF is EEE — use it to the maximum ₹1.5L/year limit. NPS gives additional ₹50,000 deduction under 80CCD(1B) AND market-linked equity returns. Use NPS for the extra deduction and long-horizon equity exposure; use PPF as the safe, tax-free base.

How do I plan for healthcare costs in retirement?

Buy a comprehensive family health insurance policy now (₹10-20 lakh cover, reputable insurer, no room rent cap) — premiums are lowest when young and healthy. At retirement, upgrade to ₹30-50 lakh cover. Budget an additional ₹5,000-10,000/month for out-of-pocket costs that insurance does not cover.