Private Wealth Management puzzles, solved step by step

Twenty years of spending, Rs 60 lakh short of 25 times. Rs 1 lakh a month is Rs 12 lakh a year, and Rs 2.4 crore over Rs 12 lakh is 20. Twenty-five times spending would be Rs 3 crore. Put another way, the client would withdraw 5% of the corpus in year one, against the 4% that the 25 times marker implies.

Why express a corpus in years of spending?

A client hears Rs 2.4 crore and feels rich; a client who hears twenty years of your current life hears a question: and after that? Dividing the corpus by annual spending turns an abstract balance into a length of time, which is what a retirement decision is actually about. It also removes the units: the same arithmetic works for a Rs 50 lakh corpus or a Rs 50 crore one.

Where does 25 times come from, and how firm is it?

Twenty-five times spending is the same thing as withdrawing 4% a year, the 4% ruleA planning guideline from US research by William Bengen in the 1990s: withdraw 4% of the starting portfolio, raised each year for inflation, and the money historically lasted about 30 years. from US retirement research. It is a starting point, not a law, because it came from one country's market history and a 30 year retirement. Higher inflation, longer lives and early retirement all argue for a larger multiple, and planners in India often use one. Say the marker, then say its limits.

Does twenty years of spending mean the money runs out in twenty years?

Only if the corpus earns exactly inflation. If it earns 2% a year above inflation and the client withdraws Rs 12 lakh in today's money at the start of each year, the money lasts about 25 years. Years of spending is a zero-real-return yardstick, so it is conservative when real returns are positive and optimistic when they are negative. That is why it is the right first number to say, and the wrong last one.