For most investors, reviewing their mutual fund portfolio every 6–12 months and rebalancing only when needed strikes the right balance between discipline and cost‑efficiency.
1. How often to review:
A half‑yearly or annual review is widely recommended. This is frequent enough to catch major drifts, yet infrequent enough to avoid churn and emotional decisions. Also review immediately after life‑event triggers such as a big salary jump, new home loan, marriage, child’s education/retirement or a major change in risk tolerance.
2. When to actually rebalance:
Rebalance if your asset allocation (equity–debt–gold) has drifted beyond a “tolerance band,” often around ±5 percentage points from your original plan. For example, if your target is 60% equity, rebalancing may be needed once it moves below 55% or above 65% or if equity spikes after a strong bull run.
3. How to structure the process:
Option 1 (time‑based): Review twice a year and rebalance once a year if your mix is off‑target.
Option 2 (deviation‑based): Review every 6–12 months, but rebalance only when allocations exceed your tolerance band.
Avoid monthly or quarterly tinkering. Mutual funds are long‑term vehicles and frequent rebalancing adds costs and tax friction without proven benefit for most investors.