Accumulation and Decumulation Strategies
This domain tests how you build the corpus and then convert it into sustainable income. The exam distinguishes accumulation risk (saving too little, poor allocation, high cost) from decumulation risk (sequence of returns, longevity, inflation, health shocks).
Core rules and concepts
- Accumulation: set the savings rate first, then asset allocation. Use diversification, periodic rebalancing, and low-cost vehicles. A glide path reduces equity as the horizon shortens, but not to zero if longevity is long.
- Decumulation: the order of withdrawals matters. A severe market fall early in retirement while withdrawing creates sequence-of-returns risk, which a simple average-return calculation hides.
- Safe withdrawal rate: a planning starting point, not a promise. Stress-test lower returns, higher inflation, and a 30-year horizon.
- Bucket strategy: hold 1–2 years of expenses in cash, 3–5 years in debt, and the remainder in growth assets. Refill buckets systematically.
- Income floor: annuities, EPF/EPS pension, and laddered deposits cover essential expenses; growth assets cover discretionary spending.
Worked example
A retiree has ₹2 crore and needs ₹8 lakh a year. A 4% withdrawal equals ₹8 lakh. But if returns are 7% and inflation 6%, the real return is about 0.94%. Over 25 years the annuity factor is roughly 22.2, so sustainable spending is about ₹2 crore / 22.2 = ₹9 lakh. A 20% market fall in year one while withdrawing ₹8 lakh raises depletion risk, so the adviser holds two years of expenses in cash and delays equity sales. The reasoning: average returns can look adequate while the withdrawal path still fails.
Traps that cost marks
Treating 4% as guaranteed; ignoring sequence risk; over-annuitizing and losing liquidity; failing to inflation-index withdrawals; and using a single bucket for all expenses.