Retirement planning feels daunting, but it comes down to one question: how large a pot of money do you need so that it lasts the rest of your life? This guide gives you a practical framework to answer it, with the numbers, the risks, and the accounts that get you there.
Start with your expenses
Your retirement number is driven by spending, not income. Estimate your annual expenses in today's money, then adjust for inflation to the year you retire. This last step surprises people: at 6% inflation, expenses of 6 lakh a year today become about 19 lakh a year in 20 years. A comfortable retirement simply needs enough invested to cover those future expenses indefinitely.
The 4% rule and your FIRE number
A widely used guideline, the 4% rule, says you can withdraw about 4% of your portfolio in the first year and adjust for inflation thereafter, with a low chance of running out over a long retirement. That makes your target roughly 25 times your annual expenses — your 'FIRE number'. So if you will need 19 lakh a year at retirement, you need a corpus of about 4.75 crore. The FIRE number calculator works this out, and the retirement calculator projects whether your savings will get you there.
A worked example
Suppose you are 30, spend 6 lakh a year today, and want to retire at 55. Inflating expenses at 6% gives about 25.7 lakh a year at 55, so your corpus target is roughly 6.4 crore. To reach it in 25 years at a 12% return, you would need to invest around 34,000 a month — and a step-up SIP that rises with your salary makes that far easier than a flat amount. Running your own numbers turns a vague worry into a concrete monthly target.
Asset allocation and risk
How you invest matters as much as how much. In your working years, a higher share of equity drives growth; as retirement nears, shifting gradually toward debt protects the corpus from a crash just before you need it. This 'glide path' reduces sequence-of-returns risk — the danger that poor returns early in retirement permanently shrink your pot. Rebalancing once a year keeps your allocation on track.
Drawing an income in retirement
Once you have a corpus, a Systematic Withdrawal Plan (SWP) lets you draw a regular income while the remainder stays invested and growing. The SWP calculator shows how long your money lasts at a given withdrawal rate, and confirms whether your planned spending is sustainable.
Tax-efficient retirement accounts
In India, vehicles like the Employees' Provident Fund (EPF), Public Provident Fund (PPF) and the National Pension System (NPS) offer tax advantages that boost long-term growth. PPF is low-risk with a fixed return and tax-free maturity; NPS is market-linked with the potential for higher growth and extra tax deductions. The PPF calculator and NPS calculator help you project their maturity values as part of your overall plan.
The cost of waiting
The single most expensive retirement mistake is starting late, because every year of delay removes a year of the most powerful late-stage compounding. Consider two savers targeting the same 6 crore corpus at a 12% return. One starts at 30 and needs to invest about 32,000 a month for 25 years. The other starts at 40 and, with only 15 years left, must invest about 1.2 lakh a month — nearly four times as much — to reach the same goal. The early starter contributes far less of their own money yet ends up with the same pot, because their contributions had a decade longer to compound. If retirement feels distant and unaffordable, the answer is almost always to start now with whatever you can, and increase it over time, rather than waiting for the 'right' moment.
Don't forget healthcare and review
Healthcare costs rise faster than general inflation and can derail a plan, so budget for them and keep adequate health insurance. Finally, a retirement plan is not set-and-forget: revisit it every year or two as your income, expenses and goals change, and adjust your contributions to stay on track. Small course corrections early are far easier than large ones late.