Set a number at 30, file it away, and open it at 60. That is how most retirement plans actually run, and it is why so many people discover a shortfall too late to fix it comfortably.
A five-year review is not a full replan. It is a check on whether the number still holds. The gap between the target set years ago and the target needed today is usually not dramatic. It is quiet, and it grows.
why five years, and not one or ten
Annual reviews generate noise. A single bad market year or one large expense does not change a 30-year trajectory, but it can trigger portfolio churn that costs more than it saves.
Ten-year gaps go the other way. A decade is long enough for expenses to double and for a missed target to harden into a problem. A 35-year-old who checks in at 45 has already lost ten years of adjustment time.
Five years sits in between. It captures most of a market cycle, absorbs the cumulative effect of inflation, and leaves enough runway to fix a shortfall through higher contributions rather than drastic cuts.
the four numbers the review turns on
The review is not a rebuild. It checks four variables.
What the household actually spends today. Not the assumption from five years ago, but the real monthly outflow now. Rent, school fees, insurance premiums, EMIs, household costs. Lifestyle inflation is the most commonly underestimated line item, and the review is where it surfaces.
What inflation did to that spending. The headline CPI number matters less than the inflation experienced in the household’s own basket. Education and healthcare run hotter than the index. Food and fuel swing. The right figure is the actual increase in expenses over the period, not the national average.
What the portfolio actually returned. The original plan may have assumed 12%. The realised return over five years could be 9% or 15%, depending on the cycle and the asset mix. The gap between assumed and actual compounds over decades, and it changes the final corpus more than most investors expect.
How much time is left. Every review shortens the accumulation window by five years. A 30-year-old with 30 years becomes a 35-year-old with 25. Less time means less compounding and less room to recover from a slow start.
what the recalculation looks like
Take an investor who set a ₹1 crore target at 30, with monthly expenses of ₹50,000 and 25 years to retirement.
Five years on, the review finds that monthly expenses have climbed to ₹65,000. Personal inflation ran at 5.4% a year, above the original assumption. The portfolio returned 9%, not 12%. And there are now 20 years left, not 25.
The revised target is not ₹1 crore. It is closer to ₹2.5 crore. The original number was not careless. It simply did not survive five years of compounding inflation and a return shortfall.
Without the review, the same gap would surface at 50, when the correction required would be far larger and the time to make it far shorter.
three outcomes, three responses
Every review ends in one of three places.
On track. Expenses, returns and time line up with the original assumptions. No change needed. This is uncommon outside periods of strong markets and stable inflation.
Shortfall. The projected corpus falls short of the revised target. Three levers exist: raise the monthly contribution, extend the working years, or lower the target retirement lifestyle. Most households use the first two and leave the third as a last resort.
Surplus. The corpus is ahead of target. Options include reducing contributions, retiring earlier, or accepting a higher retirement lifestyle. Surpluses are rarer than shortfalls because inflation tends to outrun assumptions over long periods.
the asset allocation check that comes with it
The review is also the moment to ask whether the portfolio still matches the time horizon.
At 30, with three decades to go, an equity-heavy portfolio makes sense. At 50, with ten years left, the sequence of returns matters more. A sharp market fall in the final years before retirement can permanently damage the corpus, because there is no time to wait for recovery.
Most advisers recommend a gradual shift toward debt as retirement nears. The five-year review is the natural checkpoint for that shift, rather than a rushed reallocation in the final two or three years.
what retail investors should take from this
A retirement corpus is not a fixed number. It moves with inflation, with actual returns, and with the passage of time. The five-year review is how the number stays current.
The review itself is not complicated. Four inputs, one recalculation, and a decision about which lever to pull. What makes it valuable is doing it before the gap is too large to close comfortably.
The costliest mistake is not reviewing at all. A plan written at 30 and never opened again is not a plan. It is a number that has quietly stopped being true.
Frequently Asked Questions
1. Why should a retirement corpus be reviewed every five years?
Five years is long enough to show real trends in expenses and returns, and short enough to correct course before a shortfall becomes unmanageable. Annual reviews create noise from single-year market moves. Decade-long gaps allow inflation to double expenses without correction.
2. What are the four inputs in a retirement corpus review?
Current monthly expenses, inflation over the review period, actual portfolio returns, and the time remaining to retirement. These four variables determine whether the original target is still valid.
3. How does inflation affect the retirement target?
Inflation compounds quietly. At 6% annual inflation, expenses double roughly every 12 years. A ₹50,000 monthly expense at 30 becomes ₹1 lakh by 42 and ₹2 lakh by 54. The retirement corpus must be sized for the expenses at retirement, not today.
4. What should an investor do if the review shows a shortfall?
Three levers: increase the monthly contribution, extend the working years, or reduce the target retirement lifestyle. Most investors combine the first two rather than adjusting the lifestyle expectation downward.
5. How does asset allocation change across five-year reviews?
As retirement approaches, the portfolio typically shifts from equity-heavy to debt-heavy. A market crash in the final years before retirement can permanently damage the corpus because there is no time to recover. The five-year review is the checkpoint for gradual reallocation.
