Retirement Calculator

The most widely used rule is the 25x rule: multiply your expected annual expenses at retirement by 25. This derives from the 4% safe withdrawal rate - withdrawing 4% per year means 1/0.04 = 25 years of expenses needed. But you must use inflation-adjusted expenses at retirement, not today's expenses. If today's annual expenses are ₹8 lakh and you retire in 20 years at 6% inflation, those expenses become ₹25.7 lakh at retirement - meaning you need a corpus of ₹6.4 crore (25 x 25.7L). Use our retirement calculator to compute this precisely based on your current age, target retirement age, and today's monthly expenses.

The 4% rule originates from the 1994 Trinity Study which found that a 60% equity, 40% bond portfolio could sustain 4% annual withdrawals (adjusted for inflation each year) for 30 years in virtually all historical scenarios. In Indian context, this translates to: ₹1 crore corpus can support ₹4 lakh per year (₹33,333 per month) indefinitely. A balanced portfolio earning 10% nominal with 6% inflation gives approximately 4% real return - validating the rule. For a 35 to 40-year retirement horizon (if retiring at 45 to 50), use a more conservative 3 to 3.5% withdrawal rate. The 4% rule assumes continued equity exposure post-retirement, not a move to pure FDs.

Inflation is the silent destroyer of retirement plans. At 6% annual inflation, today's ₹50,000 monthly expenses become ₹1.6 lakh in 20 years and ₹2.87 lakh in 30 years - meaning you need 5.7 times more income just to maintain the same lifestyle. Healthcare inflation in India runs at 8 to 10% annually, significantly above general CPI. An underfunded retirement corpus depletes far faster than expected because withdrawals must increase each year just to keep up. The solution is to keep at least 40 to 50% of the retirement corpus in equity (through balanced funds or index funds) so investment growth continues to outpace inflation even after you stop working.

The single most important factor in retirement wealth is not how much you save but how early you start. Due to compounding, starting 10 years earlier can triple your retirement corpus. Specifically: ₹10,000 per month at 12% for 35 years (starting at 25) grows to ₹6.45 crore. Starting at 35 with the same amount for 25 years gives only ₹1.89 crore - less than one-third, despite investing for only 10 fewer years. If you are above 30 and have not started, the answer is still to start now and maximise contributions. The second-best time to start is today. Missing another year costs more than the year's contributions - it costs all the compounding on those future contributions.

A diversified combination that shifts over time works best. In your 20s and 30s: 70 to 80% in equity (Nifty 50 index fund, Flexi-cap fund, mid-cap fund) for maximum compounding; the rest in PPF and EPF. In your 40s: shift to 60% equity, 40% debt (PPF, NPS, short-duration debt funds). In your 50s: move to 40% equity, 60% debt as capital preservation becomes primary. Specific instruments to prioritize: EPF (8.25% tax-free, employer matches your contribution - free money); PPF (7.1% EEE tax-free, government-guaranteed); NPS (equity option delivering 12 to 14% historically, with extra ₹50,000 tax deduction under 80CCD(1B)); equity mutual funds for long-term growth. Never keep retirement savings entirely in FDs - inflation will erode real value over 20 to 30 years.

Your current EPF balance, PPF balance, NPS corpus, and other investments already have a head start. Enter them as 'current savings' in the retirement calculator. These savings will compound at their respective rates until retirement, reducing the additional monthly SIP you need. For example, if you have ₹15 lakh in EPF today and it grows at 8.25% for 25 years, it becomes approximately ₹1.1 crore at retirement - reducing your required monthly savings significantly. Run the calculator with and without existing savings to see the impact. Update your inputs annually as EPF, PPF, and investment values change to keep your retirement plan accurate.

Starting late does not mean giving up - it means increasing contributions and optimising every lever available. Practical adjustments: increase the savings rate aggressively (aim for 25 to 35% of take-home instead of the standard 20%), extend your retirement age by 3 to 5 years (each additional year both adds contributions and reduces the drawdown period), maximise employer matching in EPF and NPS before any other investment (it is literally free money), redirect lifestyle expenses to savings (no lifestyle inflation from the current year forward), and use tax shelters fully (EPF, PPF, NPS 80CCD(1B) for Rs. 50,000 extra deduction). Even starting at 45 with aggressive savings, equity SIPs can build a meaningful corpus by 60 due to the compounding of even 15 years of disciplined investing.