Key Takeaways
- Retirement corpus = inflation-adjusted annual expenses × 25 — this is the starting point, not the final answer.
- At 7% annual inflation, today's expenses double roughly every 10 years — always plan with future rupees, not today's figures.
- Healthcare costs are a separate retirement risk — health insurance throughout retirement is non-negotiable.
- Review your corpus estimate every 3–5 years — income, lifestyle, and inflation assumptions will change.
- Starting SIPs early dramatically reduces the required monthly investment — time remains your most powerful retirement planning tool.
Introduction
'How much do I need to retire?' Most Indians never calculate this properly. The answer is deeply personal — but there is a systematic framework. Once you run through it, the number is often more achievable than you imagined.
The Retirement Corpus Formula
Retirement Corpus = Inflation-adjusted Annual Expenses at Retirement × 25. If you spend ₹6 lakh per year today and retire in 20 years, at 7% inflation: future annual expense = ₹6L × (1.07)²⁰ ≈ ₹23.2 lakh. Corpus needed = ₹23.2 lakh × 25 = ₹5.8 crore. This is an illustrative starting point — personalise for your city and lifestyle.
| Current Annual Expense | Years to Retirement | Future Expense (7% inflation)* | Indicative Corpus (25x)* |
|---|---|---|---|
| ₹4 lakh | 25 yrs | ~₹21.7 lakh/yr | ~₹5.4 crore |
| ₹6 lakh | 20 yrs | ~₹23.2 lakh/yr | ~₹5.8 crore |
| ₹8 lakh | 15 yrs | ~₹22.1 lakh/yr | ~₹5.5 crore |
| ₹12 lakh | 10 yrs | ~₹23.6 lakh/yr | ~₹5.9 crore |
*All figures are illustrative only. Actual future expenses depend on lifestyle, city, health costs, and inflation. Consult a financial planner for a personalised calculation.
City and Healthcare Adjustments
Metro cities (Mumbai, Delhi, Bengaluru): add 25%–30% to estimates. Tier-2 cities (Kolkata, Jaipur, Pune): use base estimate. Smaller towns: 20%–25% lower. Healthcare inflation is the wild card — running at 10%–15% per year. Maintain comprehensive health insurance throughout retirement and build a separate healthcare emergency fund of ₹10–15 lakh.
Disclaimer
Mutual fund investments are subject to market risks. Please read all scheme-related documents carefully before investing. Past performance is not indicative of future results. Baid Inbest LLP is an AMFI-registered Mutual Fund Distributor (ARN: 86114). This content is for educational purposes only and does not constitute personalised investment advice.
Want your personalised retirement corpus calculated? Inbest advisors can run the full model — visit www.inbestnow.com or call +91 9903921999.
