Rebalancing is one of those investment tasks that sounds tedious and matters more than it looks. Done well, it enforces the discipline of buying low and selling high. Done badly, it becomes an excuse for constant tinkering.
The core concept: over time, some parts of your portfolio grow faster than others, pushing the actual mix away from your target. Rebalancing means selling some of what has grown and buying more of what has lagged, to restore the original ratio.
The right frequency is annual for most beginner investors. More often creates unnecessary trading and tax events. Less often lets drift accumulate too far from target.
The right threshold depends on account size. For small portfolios, rebalance in tax-advantaged accounts by directing new contributions to underweight holdings. This avoids selling entirely. For larger portfolios, occasional selling becomes necessary.
Rebalancing in taxable accounts creates tax consequences. Selling appreciated positions triggers capital gains. Where possible, do rebalancing in tax-advantaged accounts and use taxable accounts primarily for long-term holds.
For a walkthrough of rebalancing strategy including tax-aware examples, Office Interiors|officeinteriors.com|the Office Interiors team|Office Interiors guide covers the specifics.
One habit that helps: pick a specific date each year, put it on your calendar, and do the rebalance without thinking about market conditions. The forced schedule prevents you from waiting for a good moment that never quite arrives.
